-f% s TRANSACTIONS OF THE * \ *<£< (P r> )%ro, ^IS/(IEI?.ICA.Isr ENTOMOLOGICAL SOCIETY. VOL. I. PHILADELPHIA : PRINTED BY THE SOCIETY 1867—8. m a' m /tbJi ^■'*s!£Z "'Ot, LIST OIF jpj^:^:eijei&. Page. Oresson, E. T. Notes on the Pompilida3 of North America, with descrip- tions of new species. - - - - 85 A List of the Ichneumonidge of North America, with de- scriptions of new species. Part I. - - - 289 Catalogue of a small collection of Hymenoptera made in New Mexico during the summer of 1867. - - 375 Edwards, "Wm. H. Description of certain species of Diurnal Lepidoptera found in the United States. .... 286 Grote and Eobinson. Descriptions of American Lepidoptera, • 1, 171, 323 Horn, Geo. H., M. D. Description of a new Paeudomorpha from California, with notes on the Pseudomorphidse, - - - 151 On Amphizoa insolena, LeCoate, - - - 154 Notes on the Zopheri of the United States - - 159 Descriptions of new Q-enera and new Species of Western Scarabeeidae, with notes on others already known - 163' Geotrupes of Boreal America, - - - - 313 Norton, Edward. Catalogue of the described Tenthredinidae and Uroceridae of North America, - - - - 31, 193 Shimer, Henry^ M. D. Description of a new species of Aleyrodes, - - 281 Description of a new species of Cecidomyia, - - 281 On a new genus of Aphidae, .... 283 Notes on the "Apple Bark-louse" (^Lepidosaphes conchi- /ormis), with a description of a supposed new Acarus, 361 RECORD OF THE MEETINGS. March 11, 1867. President Horn in the Chair. Fourteen members present. The Committee appointed at the last meeting to petition the Court to amend the Charter for change of name, reported that application had been made to the Court, considered and granted, and was now ready for acceptance by the Society. The following donations to the Cahmef were announced, and the thanks of the Society voted to the donors : — A large and valuable collection of Mexican Insects, from Dr. Chas. Sartorius. The Entomological Collection of the late Brackenridge Clemens, M. D., from Mrs. S. B. Clemens. Prof. Ennis made some few remarks in reference to certain species of Tahaniis^ in British Columbia, said to be very destructive to horses and. horned cattle, and recommended that the subject be taken up and studied by some one of the members. The following Papers were presented for publication in the Trans- action si : — ''A Catalogue of the described Tenthredinidae and Uroceridcfi of North America, by Edward Norton." " Notes on the Pompilidse of North Americn, with descriptions of new species, by E. T. Cresson." " Descriptions of new American Lepidoptera, No. 1, by A. R. Grote ajid C. T. Robinson." The following was read and accepted : — In the Court of Quarter Sessions of the Peace for the City and County of Philadelphia. In the matter of the petition to change the name of " The Entomological Society of Philadelphia" to "The American Entomological Society." And now February 2;jrd, 1867, upon consideration of petition, and on i^roof of jiublication of notice of application for change of name duly filed ; it is ordered liy the Court that the name of*' The Entomological Society of Philadelphia" be changed to that of" The American Entomological Society." And that notice of this change of name be given to the Secretary of the Commonwealth. In witness whereof I have hereunto set my hand and [SEAL] affixed the seal of the said Court this 23rd day of February, A. D. 18(37. J. P. GALTON, Pro. Clerk. On ballot, Rathmcll Wilson, of Newark, Del., and John S. Haines, of Germantown, Pa., were elected ILmordri/ Members; and Joseph AV. Drexel and Thomas E. McElroy were elected Resident Members. Ai'RiL 8, 1867. President Horn in the Chair. Seven members present. The following donation to the Cabinet was announced : — Two specimens of Cononotus scricans Lee, from Dr. Geo. II. Horn. May 13, 1867. Vice-President Pine in the Chair. Fuurtccn members present. The Committee appointed to revise the By-Laws of the Society, made its final report, which was read, accepted, ordered to be printed, and a copy sent to each resident member prior to its consideration, which was postponed for one month. The following donations to the Library were announced : — The American Journal of Science and Arts, May 1867. From the Conilnrtors. The Entomologist's Monthly Magazijie for January, February and March, 1867. From the Editort. Proceedings of the Boston Society of Xatural History, Vol. IX, pp. 1 — 8.(1. From the Society. The following Paper was presented for publication in the Tran^ai- tions : — '• Notes on American Micro-Lepidoptera, by C. T. Kobinson." Dr. Horn made a few remark:? on the si)ecies of Cicindela of the United States and explained the subdivision into groups as adopted by Dr. LeConte in the monograph published some years since in the Transactions of the Anier. Pliiln- .sojihical Society. He also spoke of the Catalogue of the genus recnitly pnli- lished by Baron Chaudoir, in which a diflferent classification has been adopted, though without any explanation regarding the pf)ints made use of in its forma- tion. In this paper Chaudoir unites several of our species as varieties or races, and doubtless with propriety. In the earlier days of entomological science it was found necessary to describe many uniques as distinct species, as those com- Ill ing from different regions or sections of the same region showed such differ- ences that it was impossible at that time to consider them as identical. Fre- quently, in close proximity we find individuals of the same species so differing, that they have been considered as belonging to distinct species, and it is not until explorations are made in more remote regions that other races are found proving the specific identity of the first two. To illustrate this it will only be necessary, for the members to examine the series now before them from oregona to rejyanda, in which with a fuller series of specimens than we now have, the identity could be established without the possibility of any doubt. Such se- ries may be seen beautifully arranged in the collections of Dr. LeConte and Mr. Ulke. By this it will be seen that within certain limits there can be no greater error committed than that of considering markings alone as indicative of specific differences. We have dorHuUs and Saulcyi becoming at times entirely white, with all degrees between this and the fully marked specimens. Punc- iulata also, from the dull bronze immaculale specimens found with us, becomes in the south western territory brilliant green and with markings almost as dis- tinct as in tortuosa. The variation of rugifrons are none the less marked, the brilliai^t bluish green degenerating to a dull black in the race known as mo- desta. It must be evident to the members that from color the only other alter- native is structure and it seems finally that nothing short of some well defined and permanent structural differences indicate true sj^ecific characters. Perma- nent, because in the group from oregona to repanda we find differences in the serration of the elytral tips, some being almost entirely free of this sculpture, while in others it is very stronglj^ marked. In some instances, structural dif- ferences are more strongly marked in one sex than in the other, as between the females of cuprascens and macra. With closely drawn lines it is probable that of our 68 species one-half, at least, would be considered races or varieties. It therefore behooves the members to be constantly on the watch for even the slightest variation from the typical form, so that large series may be studied and the knowledge sooner attained as to what really constitutes a species and what a variety in the interesting genus Cicindela. June 10, 1867. Vice-Presideut Pine in the Chair. Ten members present. The following Papers were presented for publication in the Tmus- actions : — '• Descriptions of a new Pseudomorpha from California, with notes on the Pseudomorphidae, by Geo. H. Horn, M. D." "On Amphizoa insolens, Lee., by Geo. H. Horn, M. D." The Report of the Committee on Constitution and By-Laws was ta- ken up, and the Constitution and Chapters 1, 2 and 3 of the By-Laws adopted with several amendments. July 8, 1867. President IIoRX in the Chair, Seven members present. The following donation to the Cahiiip.t was announced : — 8 specimens of Colkoi'teua (Cicindela orcgona, C. pu.siUa), from Geo. II. Horn, M. D. The following Papers were presented for publication in the Trans- urtioiis : — " Descriptions of new genera and species of western Scarabaeidae, ■with notes on others already known, by Geo. H. Horn, M. D." " Notes on the Zopheri of the United States, by Geo. H. Horn, M. D." " Descriptions of American Lepidoptera, No. 2, by A. R. Grote and C T. Robinson." September 9, 1867. President IIorx in the Chair. ■ Eleven members present. The following donations to the Cahinet were announced : — A small collection of Coi.eoi'tkra collected at Newbern, N. C, from Mr. Isaac Patterson. A small collection of Insects of various Orders, from F. Hermann Strecker. The following donations to the Llhrari/ were announced : — Transactions of tlie American Entomological Sooiet}', Vol. 1, No. 1. From the Publication Committee. The American Journal of Science and Arts, July 1867. From the Conductors. The Entomologist's Monthly Magazine for April, May, June, July and Au- gust 1867. From the Editors. Proceedings of the Boston Society of Natural History, Vol. IX, pp. 81— 2().S. From the Societi/. Transactions of the Entomological Society of Lomlon, ;5rd series, Vol. 2, Purl 6; Vol. .3, Parts .3 and 4; and Vol. 5, Parts 2—6. From the Society. Proceedings of the Zoological Society of London, 1805, Parts 1, i and ."> ; ISGti, Paris 1, 2 and 3; 1807, P;ut 1. From the Society. Jonnirt] of the Linneau Society of London, ^os. 31 to 35 inclusive. From the Sorieiy. List of the Members, y-Tiaws for its government and regulation as may be deemed necessary and proper. vu ARTICLE VITI. No change shall be made in this Constitution unless by a vote of two-thirds of the members present at a stated meeting, notice of such proposed change having been submitted in writing at a previous stated meet in t>". b^z"-i:jA.^w^s. CHAPTER I. OF OFFICERS AND THEIR DUTIES. Art. I. — The President shall preside at the meetings of the So- ciety, enforce the laws, preserve order and decorum, regulate debates, state and put questions agreeably to the sense and intention of the members, and announce the determination of the Society thereupon. He shall nominate the Chairman of all Committees other than those especially excepted, give the casting vote when required, and call special meetings of the Society at such times as he may deem it neces- sary, or at the request of any three members in writing. Art. II. — In the absence of the President, his duties shall devolve upon the Vice-President, or in the absence of both, a President pro t/'Dipore, selected from the members; or at his request when present, his duties may be performed by the Vice-President. Art. III. — The Corresponding Secretary shall conduct and pre- serve the correspondence of the Society, keep correct copies of all letters written on the business of the Society, acknowledge the receipt of all do- nations from persons who ai'e not members of the Society, notify all corresponding and honorary members of their election, and keep a correct list of all such members, with the dates of their election, re- signation or death. He shall have charge of the certificates of mem- bership, and cause one to be properly filled up, signed, sealed and de- livered to each member, and shall lay before the Society at the stated meeting in December a written report of his transactions during the preceding year. Art. IV. — The KocordinL' Secretary shall take and preserve correct miimtes of the ]tn)cee(lin_usi of the Society, preserve in reijular files all documents belonging- thereto that may coiue into his possession, read all couiniunications made by resident members, notify all resident uieni- hevs of their election, and all committees of their appointment, keep a correct list of the resident members of the Society, with the date of their election, resiunation or death, and lay before the Society at the stated meeting in December a written report of his transactions during the precedintr year. In his absence a llecoi'diug Secretary jjy-o tempare may be appointed. Art. V. — The Treasurer shall receive and take charge of the funds of the Society, except those especially provided for and attend to the collection and payment of monies, but no payment shall be made by him except on an order from the President, attested by the Recording Secretary. He shall keep a clear and detailed statement of all receipts and expenditures which is to be laid before the Society at the stated meeting in December, and at such other times as called upon by the Society. Art. YI. — The Librarian shall take charge of all books and pam- phlets belonging to the Society, prepare a bibliographical catalogue of the same, collect and preserve materials for a history of the Society, and report on the condition and state of the library at the stated meeting in December. Art. VII. — The Curator shall take charge of the collections of the Society, keep the keys thereof subject to the call of the various committees, attend to the increase and preservation of the same, super- intend the exchange of duplicates, (which must be in all cases for the benefit of the collection ;) but before exchanges are made, he shall see that four specimens of each American species, and two specimens of each I\treign species are reserved for the Society; all over that nundjer may be considered as duplicates, and report on the condition uf the same at the stated meeting in December of each year. CHAPTEIl II. OF MEMBERS. .\rt. I. — All candidates for admission into the Society as resident mendiers must be jirojinsed and vouched for in writing by two mem- bers, wlin sliali be re(|uired to have some personal acquaintance with the person ilicy propo.-e. and shall also be re«|uired to state the character, profession, qualifications and usual place of residence of the candi- date. All propositions for resident membership must be made at a stated meeting, and be balloted for at the next stated meeting, when the affirmative votes of three fourths of the members present shall be necessary to elect a candidate. Art. II. — xlll propositions for admission into the Society as corres- ponding members must be made in writing, by two members, at a stated meeting, and be balloted for at the next stated meeting, when the affirmative votes of three-fourths of the members present shall be necessary to elect a candidate. ^ Art. III. — No person residin-^ in Philadelphia, unless he be an officer of the army or navy, c;in be elected a corresponding member, nor shall he continue as such after he shall have removed permanently to Philadelphia. In such case a re-election is not necessary, but the corresponding member becomes liable for the annual contributions. Art. IV. — All such persons as shall in the opinion of the Society merit that distinction, may, on the recommendation of three members, be proposed in writing as candidates for honorai-y membership at one stated meeting, and be balloted for at the next stated meeting, when a unanimous vote shall be necessary to an election. Art. V. — No resident member shall be entitled to the privileges of membership until he shall have paid the initiation fee and signed the following obligation : In becoming a resident member of the Ameuican Entomological Society, I prnniise to conform myself to its Charter, Constitution, By-Laws and Regula- tions, and in testimony whereof I do hereunto subscribe my name. Art. YI. — If any person shall be balloted for and refu.sed, or his name withdrawn previous to the ballot, no note of said rejection or withdrawal shall be made on the minutes of the Society. CHAPTER III. OF contributions. Art. I. — Every resident member elect shall pay to the Treasurer an initiation fee of five dollars. Art. II. — Every resident member shall be subject to a semi-annual contribution of one dollar and fifty cents, payable to the Treasurer in June and December. Resident members removing permanently from the city shall upon request in writing, become corresponding mem- bers. and shall be relieved from furtlier aunual coutributiuns to the Society, Art. ITT. — Any monibcr may become a life-meuibor of the Society by a contribution of fifty dollars at one time, which payment shall ex- empt him from all further pecuniary contributions to the Society. Art. IV. — Any person may become entitled to receive one copy of the publieation.s of the Society durinu- hi.s life by the contribution of one hundred dollars to the Publication Fund. CIIArTER lY. OF RESIGNATIONS AND EXPULSIONS. , Art. I. — Any member shall have leave to resili- catiou ; 11, on Finance; 12, on Collecting Fund, and 13, on Hall; each to consist of three members, who shall be elected annually at the stated meeting in December. Art. II. — The Standiiis; Committees numl ered from one to nine, inclusive, iu conjunction with the Curntor, shall have charge of the collections in their respective departments. They shall properly classify, arrange, lahel and keep in order all articles presented to their respec- tive departments, make and preserve annual catalogues of them, with the name of the donor of each article, and at the stated meeting in December of each year^ each committee shall report on the condition of its department. xVht. III. — The Committee on Library (of which the Librarian shall be a member " ex-officio'') shall procure with the funds placed at its disposal, such works as may be directed to be purchased, and report from time to time what works it may consider most desirable to be obtained for the Society. It shall have power to make such exchanges of duplicates as may appear to it desirable, and submit at the stated meeting in December of each year a report of its operations. Art. IV. — The Committee on Publication shall receive all such papers 'as have been accepted for publication by the Society, have them published as early as possible, and follow in the publication, as far as practicable, the order in which they have been reported upon ; and also to publish such abstracts of the records of tl\e Society as may be of general interest, and at the stated meeting in December of each year submit a report of its operations. Art. V. — The Committee on Finances (of which the Treasurer shall be a member " ex-officio") shall take charge, with the Treasurer, of all monies coming to the Society, and invest the same; change any or all of the investments of the Society whenever it may deem it ad- vantageous so to do, and report such changes to the Society at its next stated meeting, with the reasons for making the same, and at the stated meeting in December submit a report of its operations. Art. VI. — The Committee on Collecting Fund shall endeavor to raise such funds as v.'ill enable it to send out collectors, and for the purpose of purchasing such collections of insects as may tend to en- hance the value of the Society's Cabinet; all subscribers to be entitled to a share of the insects, and at the stated meeting iu December of each year submit a report of its operations. Art. VII. — The Committee on Hall shall have the general care of the Hall, and shall provide such conveniences as may be necessary for the accommodation of the officers and members of the Society. It shall cffoct such insurance upon the property of the Society as may from time to time be directed, and at the stated meeting in December submit a report of its operations. Art. "N'^IIT. — Tu apjtointini; all other Committees the President shall nominate the first member, who is to nominate the second, the second a third, and in like manner successively, until the nuuil)er agreed upon be complete. Art. IX. — All committees must report in writing, and every report must be signed by a majority of the committee. CHAPTER VL OF TRUSTKES. Art. T. — The Society is authorized to accept in trust, and also to create separate funds for specific purposes, which shall be distinctly named. The principal of each fund .shall be kept invested in the name of the Trustees, to be appointed by the Society, for such special funds, always in such good lawful securities — the loans of the United States, the loans of the State of J^ennsylvania, or of the city of Phi- ladelphia, sound real estate securities, or other.s — as the Society may direct, and shall belield by the said Trustees in trust for the special ]turpo.ses for which each I'uud may be created. .\rt. 11. — .Ml inmioy which uiay accrue in the process of changing the investment of a Trust Fund shall be invested again without delay for the .same trust; but no investment shall be changed without the consent of the Society. Art. III. — The Trustees for such special funds shall be in number, five, of whom three shall constitute a ((uorum for the transaction of biisiness. The said Trustees shall hold their office during the plea- sure of the Society, and until the Society shall declare said office va- cant as to any one or more of said Trustees, and appoint a successor or successors, and said Trustees and all the funds and monies in their hands shall at all tinii;s and in all things whatsoever, be subject to the control and management of the Society. Art. 1\'. — The said Trustees shall, whenever directed by the So- ciety si» to ilo, pay over the whole or any part of the Trust Funds, or interest thereon, to such other trustees as the Society shall at any time appoint, or to such person or persons, committee or committees, as the Society shall at any time specify. Art. V. — The said Trustees slmll at the stated meetina- in Decem- ber of each year, and at such other times as the Society shall direct, present a report of the condition of the several funds in their hands, tlie amount of monies, principal and interest, belonging to each fund, how and when invested, the amount of disbursement thereof, and such other information as said Trustees may think proper to present to the Society ; and whenever called upon by the Society shall report upon any matters concerned with said funds that the Society shall sjiecif}'. CHAPTER VIT. OF CABINET. Art. I — The keys of the cases containing the Collection, shall be kept by the Curator, subject to the call of the Members of the Com- mittees on the several Departments, who, with the Curator, shall have the liberty to open the cases, and shall be responsible for all specimens committed to their chai'ge. Art. II. — No specimen or specimens of Ijntomology contained in the ('ollection of the Society, shall be loaned from the Hall, under any pretence or for any purpose whatever. A/RT. III. — Should any one be desirous of inspecting more closely tlie specimens in the Collection, for the purpose of study or description, he must apply to the Curator, or any Member of the Committee on that Department. Art. IV^. — No specimens will be received on deposit; but all speci- mens contained in the Collection, are considered the property of the Society, Art. Y. — The Cabinet of the Society shall be open to the study and inspection of the members, on every Mondayevening froui 7 to 10 o'clock. CHAPTER V^ITI. OF LIBRARY. Art. I. — The Library shall contain only books having reference to Entomology, and no books presented to the Society, shall be loaned from the Hall, under any pretence or for any purpose whatever. Art. II. — Books deposited in the Library shall, at all times, be at the command of the depositor, and none shall be Inaned from the Hall, uule.ss with his written consent. XIV Art. III. — The Librarian sliall have possession of the keys of the Library, (duplicates being under the care of the Curator.) subject to the call of the iMeuibcrs of the Committee, shall enter in each volume the name of the donor, and, with the Curator, be respdusible for all works committed to his charge. Art. IV. — The Library shall be open to the members, for inspec- tion and reference, on every Monday evening from 7 to 10 o'clock. CHAPTER IX. OF PUBLICATIOX. Art. T. — ^All written communications intended for puMicatidii, read or presented to the Society, shall be referred to the Committee, in whose deiiartment they are, to report thereon at the next Stated Meeting. Art. II. — All sucli communications become the property of the So- ciety, and shall be deposited in its Archives after publication; a copy, however, of any paper read before the Society, may be taken by the author; but all written communications which shall not be accepted for publication, may be returned to the author if requested. Art. III. — No author shall be permitted to nuike any other than verbal alterations in a paper, while it is in the hands of the Publication Committee, without the consent of the Society; nor shall the Commit- tee make any alterations in a paper committed to it, without the con- sent of the author. All alterations proposed, other than verbal, must be read to the Society, and if the types are set, they shall be made only at the expense of the author. Art. IV. — The regular publication of the Society, shall be called "The Transactions of the Anu-rican Kntomologieal Society," and shall be published in numbers of a uniform octavo size, at as short in- tervals as practicable. Tlie expenses of publishing the Transactions shall 1)0 defrayed by subscriptions and sales, aided l)y the interest aris- inir from the permanent Publication Fund. Art. V. — The Committee shall keep a correct account of its monev transactions, receiving all monies arising from the sale of the Trans- actions and interest from the Publication Fund, and paying all bills for publishing the same, these having been first approved by a majority of the Committee. CHAPTER X. MEETINGS. xVrt. I. — The Stated Meetings of the Society shall be held on the second Monday evening of each month, at such hours as may be fixed from time to time by the Society. Art. II. — Special Meetings of the Society may be called by the President, whenever he may deem it neccessary, or at the request of any three members in writing. Art. III. — Seven members shall constitute a quorum for the trans- action of business. Art. IV. — The order of business at Stated Meetings shall be as follows : — 1. Minutes of last Stated Meeting shall be read. 2. Reports of Officers and Committees. .3. Donations to Cabinet. 4. Donations to Library. 5. Written communications. 6. Verbal communications. 7. Unfinished business. 8. New business. 9. Pi-oposals and Elections. 10. Rough minutes read'and adopted. 11. Adjournment. CHAPTER XI. Art. I. — In ease of the dissolution of the Society, a meeting of the Resident Members shall be called, to decide upon the disposition which shall be made of its property. Art. II. — In all such points of order as are not noticed in these By-Laws, the Society is to be governed by the established usages of si- milar Institutions. Art III. — Every proposition to alter or amend these By-Laws, shall be submitted in writing at a Stated Meeting, and acted upon at the next Stated Meeting, and if adopted by the affirmative votes of two-thirds of the members present, it shall become part of these By- Laws; provided, that at least ten members be present at each of the readings. Art. IV. — Xo one or more of these By-Laws shall be suspended. OCTOBKR 14, 18G7. Prcsidont Iloiix in the Chair. Ten members present. The following donation to the Cahinet was announced : — Ifi specimens of Lkpidoptkra {Aryynnis Diava,% 9' Theda poejts. T./ahtrer, Pofyonwtatus comyntus, Ifesjieria cellas, H. honardis, H. logan), from James Ri- dings. The follo\vin6), Vol. 6 Part 1 (1837), 4th series Vol. 5, Part 4, and Vol. 6, Parts I to 4 inclusive. From the Socieb/. The Entomologist's Monthly Magazine, for September 1867. From tlie Editors. The American Journal of Science and Arts, September 1807. From the Con- ductor x. Condition and doings of the Boston Society of Natural History. (From the Annual Reports of OfRcers.) May, 1867. From the Society. Letters were received from the Secretary of the Linnean Society of London, and from the Editors of the Eutomolouist's Monthly 3Iaga- zine, acknowledging the receipt of the Society's publication. November 11, 18G7. Presi'dent IIoRX in the Chair. Nine members present. The following donations to the Lihrary were announced : — Proceedings of the Essex Institute, Vol. 5, No. 4. From the Institute. Transactions of the Literary and Historical Society of Quebec, New series, Part 5. From the Society. . The American Naturalist, Vol. 1, No. 8. From the Editors. Kevue des Cours Scientifiques de la France et de rustranger, Quartrieme an- nee, Numero 31. From the Directors. Proceedings of the Academy of Natural Sciences of Philadelphia, 1S67, Nos. 1, 2 and 3. From the Academy. * Transactions of the American Entomological Society, Vol. 1, No. 1. From the Publication Committee. Letters were read from the Smithsonian In.stitution, the Essex In- stitute, and the Chicago Academy of Sciences, acknowledging the re- ceipt of the Society's publicatiou. OF THE AMERICAN ENTOMOLOGICAL SOCIETY. VOLUME I. DESCRIPTIONS OF AMERICAN lEPIDOPTEEA.— NO. 1. BY AUG. R. GROTE and COLEMAN T. ROBINSON. [Communicated March 11, 1867.] Family, HKSPERIIDAE. HESPERIA, Fabr. Hesperia punctella, n. sp. Male. — Head, thorax and abdomen, above, olivaceous blackish; be- neath, the palpi are clothed with mixed whitish and fuscous hair, the eyes are narrowly bordered interiorly by pale scales, the thorax is clothed with dull olivaceous hair, and the abdomen is touched here and there with pale scales. Antennae, slender and moderately lono; above, the stem, before the "^club," is fuscous and obsoletely annulate with a paler shade, which latter becomes more prominent before the apical distension ; beneath, more plainly annulate with yellowish-white, which latter shade becomes continuous over the base of the ''club-" this latter is elongate, black above, and below, and terminates in the usual short booklet, carried at right angles with the antennal stem. Legs, fuscous, paler inwardly ; posterior femora with two pairs of short, unequal, and slender spurs, which are of a very pale color, and of which the terminal pairs are the most prominent. Wings, above, glossy olivaceous blackish, with a variable coppery reflection ; anterior pair, elongate, sub-triangular, straight along costal margin, produced at apices; an oblique, dull black, stigmal dash, ex- tending from base of 2nd median nervule, inwardly, to above internal nervure; a white dot above this, situate near the base of the interspace between 1st and 2nd median nervules; a white dot within this, placed sub-costally above and near the outer extremity of the discal cell. A cluster of three similar very approximate white dots, one under the other, the lower the largest, slightly curved and placed interspaceally sub-apically between the sub-costal nervules, and forming, with regard TUANS. AMER. EXT. SOC. ( 1 ) JUNE, 1867. 2 GROTE AND ROBINSON. to the two other dots the apex of an oblique triangle, which might be drawn so as to include all these maculations ; apieally, the wings are dull blackish ; fringes, pale, stained with darker shades below the apex and interruptedly so at the middle ; posterior wings, resembling prima- ries in coloration, immaculate, slightly produced at anal angle; fringes, pale, immaculate. Under surface of wings, dull olivaceous blackish, with lilac and brown shades. Anterior pair bright brown along costa and more dif- fusely so towards the apex ; the white dots of the upper surface are here reproduced, surmounted by three short, oblique, costal pale marks, but they are larger, more nearly one sized and sub-quadrate ; a lilac shade, deepening inwardly inferiorly to purplish, spreads terminally from apex to about 2nd median nervule ; fringes as on upper surface, but more prominently interrupted with darker scales at the extremity- of the nervules. Secondaries, dull obscure brownish, somewhat oliva- ceous along internal margin, and obsoletely shaded with light purple at the middle ; a faint, extra mesial, arcuate band of disconnected in- terspaceal, pale discolorous blotches, which are discontinued within in- ternal margin, and most prominent at the bases of the median nervule; u terminal lilac shade much as on anterior wings ; a terminate narrow dark line ; fringes, pale, obsoletely interrupted with dark scales at the extremities of the nervules. Expanse, 1.50 inch. Length of hoJi/, 0.70 inch. Habitat. — Atlantic District. (Georgia!) This species bears a slight resemblance to Eudamus bathyllus, Bilv. and Lcc, in coloration. It is structurally distinct in the shorter an- tennae, wanting the prominent reflection of Eudamus, narrower prima- ries, and by having the abdomen as long as the internal m:irgin of the secondaries. We have examined two male specimens, taken by Mr. James Ridings, in Georgia, during the early summer of 18GG, Hesperia fasca, n. sp. ]\lah>. — lluad, thorax and abdomen, above, olivaceous blackish ; the prothoracic scales are shaded with golden brown, which latter shade extends narrowly above the eyes and liuearily across the front and strongly tinges the terminal palpal hairs. Beneath, the palpal scales are yellowish-white, which latter color extends narrowly below the eyes; the thoracic scales are pale yellowish olivaceous ; the al)domen is shaded with obscure whitish. Antenmo, moderate, slender; the an- tcnnal stem, above, is fuscous, beneath, annulated witli yellowish-white. which latter shade extends over the "club" at base, the latter mode- AMERICAN LEPIDOPTERA. 3 rate, elongate, above entirely black, but beneath only terminally so; the terminal booklet is short, and carried at right angles with the an- teunal stem. Legs, obscure olivaceous, paler within, hind femora with- two pair of very slight, sub-equal spurs. Wings, above, glossy olivaceous blackish, immaculate; anterior pair slightly produced at apices, moderately straight along external margin; the costal region is somewhat elevated, and, superiorly, the wing is a little wrinkled ; there is a faint and variable yellowish-brown reflection equally distributed; fringes, pale, immaculate; posterior wings, rounded along external margin, straight along internal margin, so that the anal angle, without projecting, is yet acute; the coloration as on primaries; fringes, pale, immaculate. Under surface of wings, shaded with lustrous golden brown scales. Anterior pair, dull olivaceous blackish, shaded with somewhat pale gol- den brown scales superiorly and terminally ; fringes as on upper sur- face. Posterior wings, evenly covered with pale golden brown scales, except for an inwardly, straightly defined, longitudinal space before in- ternal margin, which is dull olivaceous blackish; fringes as on upper surface. Female. — Resembles the male ; the wings are less produced at the apices and angles ; the yellowish shades among the palpal and caputal scales in the male, are paler and whitish, as is also the inferior thoracic and abdominal squamation. Expanse, S and 9 , 1.05 inch. Length of hodj/, % , 0.55, 9 , 0.50 inch. Habitat. — Atlantic District. (Georgia! Ridings; Florida I Linden.) We have examined one female and three male specimens of this small species, which may be recognized by its immaculate wings and dull obscure coloration, hardly relieved by the golden brown scales of the under surface. Hesperia alternata. n. sp. Female. — Head, thorax and abdomen, above, olivaceous blackish ; laterally, the thoracic parts are furnished with long olivaceous hair, which covers the abdomen at base. Beneath, the palpi are clothed with whitish and mixed dark scales, and the eyes are bordered inferi- orly with pale scales ; the thoracic parts are somewhat loosely clothed with cinereous or slate-ashen hair, which becomes somewhat whitish between the anterior femora; abdomen, sprinkled with grey scales, which form incomplete segmentary bands, narrowly fringing the infe- rior edges of the abdominal segments laterally, and continued obso* 4 GROTE AND ROBINSON. letely superiorly. Legs, finely scaled, blackish, slightly touched with grey scales; hind tibi;\) fringed with long and sparse ashen hairs, and provided with two pairs of short, slight, sub-e(jual spurs. Antennae, moderate, black, annulate with white, more prominently so beneath, where the base of the "club" is also white, whereas above, this is en- tirely black. Wings, blackish-brown, lustrous; anterior pair, trigonate, produced at apices, external margin slightly oblique, hardly rounded, slightly projected at internal angle ; posterior pair, rounded along external margin and having internal margin a little shorter than abdomen. o o o Above, the anterior wings are lustrous blackish-brown, faintly shaded with olivaceous at base and along internal margin, immaculate, except a very faint series of disconnected pale marks, three in number, situate isub-terminally and obsoletely, constituting the usual band ; these marks are composed of a few powdery pale scales and readily escape observation ; the first and longest is situate sub-costally across the api- cal nervules; the remaining two are situate near the base of the inter- spaces between the upper median nervules, the upper most the smallest and nearer the external margin. In shape all these marks are linear; that below costa a little arcuate; fringes, white, prominent, narrowly interrupted with blackish at the extremity of the nervules. Posterior wings, blackish-brown, immaculate, with long olivaceous brown hair along internal margin, and spreading sparsely over the base; fringes, white, prominent, obsoletely interrupted witli blackish at the extremity of the nervules. Beneath : anterior wings colored as on upper surface^ but a little paler, with a slight purple shade, and having the sub-ter- minal pale marks very slightly more prominent; fringes as on upper surface; the posterior winirs are blackish-brown, lustreless, and the whole surface is very distinctly irrorate, or powdered with cinereous or slaty-ashen scales, except f )r a rather wide longitudinal space before internal margin, extending from base to external margin, towards which it widens, where the ground color of the wing prevails, entirely free from pale scales, which again are sprinkled beyond it along inter- nal margin ; these irrorations are gathered centrally so as to form a linear median sinuate band, continued from costal margin to the space before internal margin, which is free from irrorations; fringes as on upper surface. E.rpunup, 0.05 inch. Ltnrjtli of hod;/. 0.50 inch. Ilnhitiii .\tlantic J)istriet. (Georgia I) Resembles He.speria samoset, Scudder, (Ifrnp. )iemoris. Edwards.) but differs by the obsolescence of the pale marks on anterior wings and, the coloration of the posterior wings beneath. AMERICAN LEPIDOPTERA. 5 Family BOMBYCIDAE. Sub-fiimily Ceratocampidae. Tribe DRYOCAMPINI. PSEPHOPAECTES, n. g. $ . Head, depressed, impacted on the prothoracic parts, which are greatly advanced and projected above it. Eyes, very large and globose. Clypeus, broad, triangulate. Antennae, slender, shorter than the tho- rax, bi-pectinate at base for a third of their length, thence simple to tips. Oral structure obsolete. Thorax, globose and elevated, half as long as the abdomen, thus proportionate!}^ more elongated than in Adelocephala. Abdomen, extending as far as internal margin of se- condaries. Wings, rather narrow and elongated. Primaries, with the costa very straight, and but slightly depressed before the acuminate apices. External margin scolloped, moderately oblique. A shallow excavation below the tips, the margin rising to disco-central interspace where it is produced, but is again and more deeply excavate between first and third median nervule. At the ex- tremity of this latter nervule, the wing is again produced, thence reced- ing to internal angle, this latter rounded and improminent. The ner- vules are straight or slightly arched. The diseal cell is narrow ; the 3rd sub-costal thrown off from the nervure itself and not from the dis- eal cross-vein as in Adelocephala and Anisota, (Dri/ocmnpa., Harris). The median nervure is straight, and its division into first and second median uervules takes place at a point before the extremity of the dis- eal cell, the second, proceeding straightly to the margin, while the first is slightly arched, but not abruptly taking a divaricating course as in allied genera. The diseal cell is closed, but the veinlet is weak, and is, perhaps, not a true nervure. The third median nervule is thrown off" from the nervure at a point about midway between the base of the wing and the point at which the first and second nervules divaricate ; it is directed downwards, but still slightly arched, and the space on external margin between the nervules is wider than usual, owing more particular to the arcuation of the first median nervule beyond the dis- eal cell. Internal nervule, straight; the sub-median fold runs approxi- mate to third median nervule. Secondaries, irregular in shape. The costa is basiilly projected, thence depressed or cut away to the apices, these latter rounded and full. The external margin is rounded ly pro- duced superiorly, shallowly excavate between the median nervules, ngain roundedly and shortly produced towards anal angle. Internal b GROTE AND ROBINSON. margin long and straight, slightly folded. Costal nervure arched at base and following the shape of the wing, joining the costal margin before the apex. Discal cell somewhat pyriforni. 'J'he sub-costal ner- vules are not thrown off together, but the first, on the upper side of the nervuro, is thrown off before the divarication of the second and third. This genus bears a remarkably close though superficial resemblance to Smerinthus, Lair.; thus the general appearance is very deceptive. The analogies of Psephopaectcs, with the Sphingidae, are not merely expressed in the conformation of the wings; analogical characters may be traced throughout, as, for instance, in the ccmiparatively large eyes, in which an approximation is shown to the saliency oi" these organs in a higher Family. The affinities of the moth, on the other hand, are with the Bombycidae, and its true position is with Adelocephala, and allied genera belonging to the lower Tribe of the Sub-family Cerato- campidae — the Dn/ocampiai. In Psephopaectcs, we have a fresh illustration of the varied and in- teresting analogical forms afforded by the Bombycidae. Dr. Packard has already remarked : "Within the Sub-order Lepidoptera there is a true and beautiful synthesis located in the Bombyces."* We take, then, the occasion of repeating Dr. Packard's words on this subject, merely to corroborate his views. Psephopaectcs simulatilis. n. sp. (Plate 1, fig. 1, % .) % . Fawn color, with a light purple shade. Head, thorax and ab- domen, uniformly pale fawn color; legs, darker, becoming purplish on tarsi and tibi:X! outwardly. Primaries, brownish ochreous, obsoletely irrorate, darker at base and outside of the external transverse line. An oblique, basal, darker, transverse line projected superiorly. Median space, paler than the wing elsewhere, limited externally by a narrow, even, oldicpie, external, dark brown line, which emanates from costa at apical fourth, and joins internal margin without the middle. Discal cross- vein faintly marked and clouded with darker scales. Outside the ex- ternal transverse line, the wing is more intensely colored than elsewhere, being of a deep tawny ochreous, and is overcast by a light lilac shade, this latter obtaining as a determinate color, from first median nervule to internal angle along the terminal margin of the wing. The short fringes are dark, especially inferiorly. Under surface, resembling up- * Packard : On Synthetic Types in In.-c. E it. Soc, Phil., Vol. 3, p. 384. (Deeem- bi-r, 1864.) Habitat. — Atlantic District. This species varies in the ground color of the wings becoming more reddish than in the specimen we figure. Such an individual was taken by Mr. (Irote in Arkansas, and is now in the possession of Dr. Packard. .Vlthough moagre, Harris' description evidently refers to this species, in which the 9 antcnnfe are slightly pectinate at base. Mr. Walsh's error in erecting two genera and species on individuals generically iii- .leparable and specifically identical, has been elsewhere sufficiently ex- l)09ed. In regard to a critical study of all the species of this Tribe, it has already been remarked, that we must be prepared for slight dif- AMERICAN LEPIDOPTERA. 11 ferences of structure between the species. Mr. Grote (1. c.) has also written with regard to A. bicolor : "Should, on an examination of actual specimens, our species be found generically distinct, the name proposed by Mr. Walsh will prevail, and our species be known as Sphingicampa bicolor." As yet there seems no propriety in adopting this latter determination. Adelocephala quadrilineata, n. s. (Plate 1, fig. 2, 9 )• 9 . Size, moderate ; form a little slenderer than A. bicolor, with which latter epecies it conforms in appearance and habit. Head, sunken in the prothoracic parts ; antennae, slender, short, and very slightly thickened basally. Thorax, short and stout, globose and eleva- ted, thickly scaled. Above, the head and body parts are bright ochreous tawny ; beneath, the abdomen is of a slightly duller and darker color, while the scales fringing the segments and anus are of a brighter taw- ny ochreous shade. The tibiae and tarsi are of a dark lead color out- wardly. Wings, full and rounded. Primaries, at base, bright ochreous taw- ny, which color spreads along co:«ta and over the discal cell, forming a diifuse darker shade about the discal cross-vein. Median space, paler than the wing elsewhere, distinctly limited on either side by two trans- verse determinate dark brown lines. The first of these is short, slightly angulate at costa, thence running straightly, obliquely inwardly to in- ternal margin. The second, long, emanating from costa at apical fourth, and running straightly and very obliquely inwardly to internal margin, which it joins at about the middle. Outside of this latter line, the wing is again evenly bright tawny ochreous as at base, while the sub-obsolete irrorations are more prominent and perceivable. The external and internal margins are narrowly fringed with dark brown. Undersurface, paler than upper. Over the base, centrally, is spread a diffuse roseate patch ; here the scales are longer and hair-likfi. Beyond the discal cross-vein, a brownish macular discoloration. A single external transverse even dark brown line most distinct on costa, fading towards internal margin. Externally, from the apices down- ward, the wings are diffusedly shaded with a darker hue. Secondaries, above, largely bright and deep rose color, becoming more intense in hue towards the base and along external margin, where the scales are longer and more hair-like. Costa and external margin, narrowly pale ochreous tawny. Fringes, very pale; thus quite unlike those of the anterior wings. Undersurface, pale dull ochreous tawny, obsoletely irrorate. A single brown band is drawn across the wings. 12 GROTE AND ROBINSON. most distinct on coata, fading towards internal margin, before which it becomes obsolete. No discal spots on either surface. In shape the Mocondaries are as in A. bicolor. Expamc, 9 , 2.85 inch. Length of body^ 1.10 inch. Habitat. — Mexico. Is at once distinguished from 9 ^- bicolor, by the distinct lines of the upper surface of primaries and simple antenuse. Family PIIALAENIDAP]. PERICALLIA. Stephens. Poricallia kentaria, n. s. (Plate 1, fig. 5,9 ; 6,9 reverse). Selenia kentaria, G. and R., MS. 9 . Head and collar, whitish ; beneath, the compressed palpi, the under thoracic parts and inside of the legs are deep obscure ochraceous. Outwardly, the legs are palely colored and everywhere sparsely and finely irrorate with blackish scales. Thorax, above, loosely haired, pale, dull whitish fiwn color; the scales anteriorly, from beneath the 'collar," are darker tinged. Abdomen, hardly as long as internal margin of secondaries, pale ochraceous, irrorate with black scales and with diffuse sementary pale shades continued entirely around. Antennte, moderate; the stem, above, is covered with pale scales, beneath it is brownish, with a double row of reduced pectinations. Wings shaped as in P. syriiigaria. Costa of primaries sinuous; n^ndedly produced at base, depressed before the truncated apices. Kxternal margin produced medially, sub-excavate between the nervules. Dull fawn color with bright ochraceous and whitish shades, sparsely and rather coarsely irrorate. At extreme base the costal region is bright ochraceous, mottled with ferruginous transverse streaks, form- ing a distinct blotch. Below the median nervure, from the base to the third transverse band, the wino: is dull fawn color. Costal region more whitish than elsewhere. Three deep brown transverse irregular bands cross the wing from costa to internal margin. The.se are very broadly marked on costal region, below which they are linear, the first and se- cond slightly diffuse. The first is angulated outwardly on median ner- vure. The second, at the middle of the wing, is somewhat flexuous or sinuate. The third band follows the second, at a nearer distance than the second does the first ; this is distinct and linear, less heavily marked on costa than the others, rouuded outwardly to median ner- vure, where it is bent inwardly, thence running straightly to internal juargin. At extreaiity of the discal cell, between the second and third t-ransversc bands, the wing is suffused with bright ochraceous. A AMERICAN LEPIDOPTERA. 13 linear, oblique, clear colored discal streak. Outside of the third trans- verse line, the wing is broadly pale fawn color, darker in color than the whitish costa. Terminally, the wing is bright ochraceous from apices to internal angle; the whitish costal scales extending downwards and linearily intruding so as to form a pre-apical semi-circular mark ; the short fringes are dark brownish. Internal margin fringed with long concolorous fawn colored hair. Undersurface, resembling upper, but brighter colored and more distinctly marked. The paler shades are lighter, and the darker shades deeper than on the upper surface. The nervules are distinctly relieved terminally by dark scales. Posterior wings, resembling primaries in general coloration and ap- pearance. At base darker, dull fawn color. Two parallel approxi- mate dull brownish transverse lines; between these, the wing is more ochraceous than elsewhere. The inner of these lines crosses the clear colored comma-shaped discal streak. Beyond the outer line, the pale ground color appears as a coincident transverse pale shade. Terminally, the wing is ochraceous, while at anal and costal angles the pale ground of the wing diffu.sely intrudes. The short fringes are dark brownish. Beneath, as on primaries, the secondaries are very much more brightly marked. Base, largely bright ochraceous, transversely mottled with ferruginous transverse streaks. The inner line is diffuse, distinct and bright ferruginous. Outside the second line the coincident pale shade is white. Beyond it, the wing is darker than on upper surface. The '•veins" are generally picked out by dark scales. Expanse. 9 , 2.00 inch. Lcngtli of hodt/, 0.70 inch. Habitat. — Atlantic District. (Brewster's, Putnam Co., N. Y., April 14th : C. T. R.) Appears to represent the European Pericallia syrangaria, aS'/'''/)A^»s, in the fauna of the Atlantic District. It is a larger and brighter co- lored species. The markings, while quite similar, are more prominently expressed ; this is especially true of the ochraceous tints of both surfaces and of the transverse bands of the primaries, which are more broadly marked on the costal region of the upper surface than in the European species. The second transverse band is more irregular, while the third i.s inwardly bent on the median nervure. In P. syringaria, the third band is straight and further removed towards the external margin of the wing. The latter seems to afford a ready character by which we may distinguish this fine species from its European congener. Ap- pearing very early in the season, P. kentaria seems as yet to have es- caped the notice of our collectors of Lepidoptera. It is an interesting 14 GROTE AND ROBINSON. and beautiful aJditiou to the Lepidopterous fauna of our ^Middle States. Family, PYRALIDAE. Sub-Family, Pyralididae. In the Wiener Entomologische Monatschrift, A^ol. 7, 18G3, will be found an extended Revision,* by Jul. Lederer, of the Pyralidae, which, while it takes cognizance of all the species of the Family that had been noticed by Authors up to that date, is of great interest to the student, from the originality of the classificatory views therein pre- sented. In offering the descriptions of certain Pyralidae, chiefly from the Atlantic District of the United States, it is not our purpose to discuss the merits of Lederer's Classification of the Family, which will be found to differ radically from that of 3Iessrs. Guenee and Walker. We briefly refer to the circumstance, that the species for- merly separated under the generic names Ennijdiia (non Led.), Rho- daria, and F//ramfa, are united to Botys, Treifs., which latter genus thus obtains a much wider signification than had previously been ac- corded to it by Authros. For the reasons adduced by Lederer for this change, as well as for critical ren)arks on M. Guenee's so-called " Fa- milies" in this Group, we refer the Student to the Paper itself, and have contented ourselves for the present in citing our former MS. determinations of certain species, where such appeared to belong to genera not recognized by the Austrian Entomologist. ASOPIA, Trcitschke, emend. Led. Asopia unimacula, n. s. (Plate 2, fig. 8, % .) I'l/ralis unimacula, G. & R., MS. Palpi short, whitish beneath. Head and thoracic region, above, obscure olivaceous fuscous or blackish. Abdomen, a little paler than thorax, the segments narrowly edged posteriorly with whitish scales ; beneath, glistening, whitish. Legs, testaceous whitish, a little darker shaded inwardly on the femora; under thoracic surface, whitish. Anterior wings, silky, of an obscure fuscous or blackish color, with a slight opaline reflection ; all the markings are obsolete, except a broad, evident, pale yellow costal blotch or abbreviated band, situate at without the middle, and rather distinctly margined ; outwardly, this .spot has a sinuous depression ; it is also .somewhat obliquely placed. * "Beitrag zur Kenntniss der Pyralidinen." Jul. Lederer, W. E. M. vii Band, Nos. 8—12, Aug.— Dec, 1863, Taf. 2—18. AMERICAN LEPIDOPTKRA. 15 and is rounded inferiorly. Below this costal patch, are two or three j^uiall testaceous spots, frai^nients of a transverse band and somewhat coalesed in certain individuals. Second.iries, concolorous with prima- ries, shaded basally with paler scales, these latter allowing a median dark irregular line, margining the paler portion of the wing externally, to become obvious ; medially, the costa is diffusedly testaceous ; fringes, pale. Undersurface of anterior wings, resembling upper surface ; the internal margin is diffusedly paler, testaceous. P.o.sterior wings, largely testaceous, shaded with fuscous externally; a sinuate dark subterminal line, continued from costa to just before internal margin above the angle; a sub-basal, similar line, which is curved outwardly, and appa- rently joins the sub-terminal line at the middle of the wing; the space enclosed in this manner superiorly between the two lines, is, perhaps, more yellowish than elsewhere, and corresponds to the paler shade of the upper surface. E.ijKinac. S , 9 ? f*-8*^ inch. Length of hodji, 0.40 inch. Ilahitiit. — Atlantic District. (Penna. !) Allied to the common Asopia olinalis, Lrderer, (^Pt/ralls ollnah's, Gueneej, but k smaller species, with a different coloration and very distinctive ornamentation. Both Asopia olinalis, and Asopia costalis. Fabr. sp., occur in New York State. Of the former, Asopia trento- nalis, Lvilcrcr^ is probably a synonym. The latter is regarded as identical with the European species. Asopia anthoeoioides. n. sp. (Plate 2, fig. 9, 9 )• Head, thorax and abdomen, pale dull brownish above and beneath; head and appendages, a little darker; legs, concolorous; anterior and middle femora, a little richer colored. Anterior wings, pale brownish, neatly defined into separate fields by the narrow transverse lines and markings. A pale, somewhat greyish, narrow, basal space. Outside of this, and neatly defined by narrow marginal lines, is a transverse oval rich olivaceous brown patch, nar- rowing to costal and internal margins. The median space, immedi- ately beyond this dark sub-basal space, is, for half its width, paler than the wing elsewhere; a faint median linear shade line, between whi^h. and a narrow clear post-median line, the outer half of the median space is darker shaded and more brownish. The post-median line and the pale line margining the dark sub-basal patch outwardly, remind us of the transverse posterior and transverse anterior lines in Anthtecia. The post-median line is sub-sinuate; beyond it, the terminal space of the wing is shaded with brownish, a little mixed with reddish, from 16 GROTE AND ROBINSON. the apex downward, apically the shade is deepened, throwing out the pale color of the narrow post-median line at the costa more stronj::ly than elsewhere, from the contrast, l^osterior wings, concolorous with abdomen, a little more cinereous and darker basally ; terminally, the wing shows a pale shade and a faint continuous transverse line, run- ning within and nearly coincident with external margin. Undersur- face of both wings, cinereous, shaded with purplish along external and costal margins; a common, distinct, pale, sub-terminal line crosses both wings; on the primaries this is somewhat S-shaped, corresponding to its analogue on the upper surface. Fringes, dark. Expanse:, % 9 , 0.65 to 0.75 inch. Lemjth of body, 0.30 to 0.45 inch. Hahkat. — Atlantic District. ( N. Y. to Penna. !) The anal segment of the abdomen is somewhat suddenly constricted and produced in the female of this very interesting species, which somewhat curiously recalls the ornamentation of Anthoecia, and more distantly the habitus of Ichthyura. Of the American species referred to Asopia, by Lederer, it seems to more nearly resemble the common Asopia farinalis, Linn, sp , than any t)ther, but is much more robu.st in the body parts, compared with the general size. BOTYS, Tre'dsrhke, emend. Led. Botys signatalis. (Plate 2, fig. 11, -^ ). Rhodaria signatalis, Walker, C. B. M. Lep. Het., Tt. .34, Sup. Pt. 4, j.. 12S2. (1H65). Male am? Female. — Head, above, and palpal tips, reddish ochraee- ous; very narrow paler lateral lines on the " front," margining the eyes ; beneath, the palpi are whitish. Thorax, dark ochraceous, with a faint reddish tinge; abdomen, cinereous, silky, shaded with ochreous at base, the segments narrowly fringed posteriorly with pale scales; anal tuft ratlier prominent, reddish ochreous above, beneath whitish. Undersurface of thorax and abdomen, silky, whitish. Legs, whitish, faintly shaded with cinereous outwardly. Anterior wings acute. Above, of an even intense pinkish-purple color ; two transverse distinct yellowish-white lines ; the first (ante- median) is discontinued at the costa, and very slightly irregular, nearly straight ; the second (post-median) is strongly outwardly arcuate supe- riorly ; over the median nervules, where it is most constricted, it i? composed of disconnected dots, closely approximate; inferiorly. it ruriK parallel with and more approximate to the first line to internal margin. Posterior wings, silky, cinereous, deepening in hue towards external AMERICAN LEPIDOPTERA. 17 margin, nervules darker clothed; a pale streak within anal angle, mar- gined without by a very few roseate scales, and discontinued above median nervure. Fringes a very little paler than ou anterior wings. Undersurface of wings, silky, cinereous, with a faint purplish lustre, darkest superiorly, and with a median faint pale shade line across both pair, arcuated on anterior wings where it is analogous with the post-me- dian line of the upper surface. E.rpaiisr, 0.75 inches. Length of hodi/, 0.35 inches. Habitat. — Atlantic District. (Ma.^s. to Pa. I) Mr. Walker's description makes no mention of the abbreviated band on the upper surface of posterior wings; the anal tuft is not " whitish." nor are the fringes of the secondaries properly characterized as of the same hue. The hind wings are rather dark cinereous, not " reneous," or concolorous with the fringes of the primaries. Nevertheless, the general coloration and the conformation of the distinct lines of the upper surface of anterior wings, lead us to believe, that this is the spe- cies intended in the British Museum Lists. In the case that a new name be used for this species, we propose that of Botys (Rhodaria) vinulenta, nob. Athaloessa signatalis, Zcller., sp., had been already described at the time of the publication of Rhodaria signatalis, Walker. A single specimen, brought by Mr. Ridings from Colorado Territory, oiFers no points of distinction, when compared with specimens of B. signatalis, from the Atlantic States. Botys laticlavia, n. sp. (Plate 2, fig. 12, -J, .) Bhodana laticlavia, G. & R., MS. Malt and Female. — Head, above, and palpi obscure ochreous fuscous; two narrow, white lines run from the tips of the palpi, along their su- perior edge, back to the antennal bases, narrowly margining the eyes on the front; beneath, the palpi are white at base. Thorax, ochreous; abdomen, pale dull ochraceous, the segments obsoletely defined by a paler edging of scales posteriorly ; beneath, the legs and under corpo- ral surface are of a dull pale color, not whitish, but of an obscure ochraceous or cinereous hue. Antennae, dark, somewhat purplish su- periorly. Anterior wings, light purple, silky; a broad, rather square, yellow patch at base, resting on internal margin, but not attaining the costal region; a distinct, sub-spherical, yellow discal spot; a broad, yellow, slightly oblique, sub-terminal band, a little narrower and constricted in the female, running from internal margin to costal region, not attain- TRANS. AMER. ENT. SOC. ( 3 ) JUNE, 1867. 18 GROTE AND ROBINSON. ing the costa. Fringes, light purple, concolorous. Posterior wings, silky, pale cinereous, with a purple shade, most prominent along exter- nal margin ; a faint, rather broad, pale yellow band is obsoletely con- tinued from anal angle, and corresponds to the sub-terminal band of the anterior wings. Under surface, faintly cinereous, silky, with a purple shade superiorly along and beneath costal region of both pair of wings, giving place inferiorly to a faint yellowish tinge. Expanse, 0.80 inch. Lejigth of hodij, 0.35 inch. Habitat. — Atlantic District. (Peun.I) Resembles Haematia phoenicealis, Hilbner^ Zutr. Ites Hund. No. 58, p. 22, figs. 115 — 116, but is a slightly larger species, and readily dis- tinguished by the discal spot on the upper surface of the primaries, and the paler, purplish, and almost concolorous under surface of both wings. Botys cinerosa, n. sp. (Plate 2, fig. 13, % .) Rhodaria cinerosa, G. & R. MS. Head, palpi and thorax, olivaceous cinereous; tegulae and ''collar." very slightly shaded with purplish. Two narrow white lines extend, one on each side, from the palpi along their upper edge to the base of the anteniife. Abdomen, olivaceous cinereous. Beneath, the under corporal surface and legs are whitish cinereous, palpi narrowly edged with whitish scales. Anterior wings, silky, light purple, with concolorous fringes. A broad, rather square, olivaceous cinereous patch at base, resting on in- ternal margin, but not attaining the costal region which is everywhere purple ; a rather distinct, sub-spherical, cinereous discal spot; a broad, cinereous, slightly oblique subtermiiuil band, running from internal margin to costal region. Posterior wings, silky, pale olivaceous cine- reous; the fringes and external margin are stained with light purple, most evident centrally along the extreme edge of the external margin. Under surface of both wings, obscure cinereous, washed with pale purplish along costal and external margins; fringes, pale purple. Expanse, % 5 , 0.65 — 0.75 inch. Length of boih/, 0.30 — 0.40 inch. Habitat. — Atlantic District. (Penua.I) . This species resembles Botys laticlavia, G. tt; R., exactly in the or- namentation of the upper surface of the primaries, but the markings are here cinereous, not yellow ; the corporal coloration presents also the same difference. AMERICAN LEPIDOPTERA. 19 Botys diffissa, n. sp. (Plate 2, fig. 16, % .) Bhodaria dijfissa, G. & E., MS. Head and palpi, obscure cinereous; thorax, cinereous; teguljB stained with reddish-purple; abdomen, cinereous, above and below stained with purple ; beneath, the legs and corporal parts are pale yellowish cinereous, the former somewhat the palest. Anterior wings, dark reddish-purple; a moderately broad, sub-basal, bright yellow band, rests on internal margin, where it is broadest, not attaining costal region. A distinct, yellow, discal spot. A sub-termi- nal, moderately broad, bright yellow band, runs from costa, before the apex, to internal margin, bent inwardly below the middle of the wing, but elsewhere running parallel with external margin; fringes, purple. Posterior wings, reddish, of a slightly fulvous shade ; fringes and ex- ternal margin, purplish ; a narrow, yellow, discontinued streak within anal angle, otherwise the wings are concolorous, without markings. Under surface of wings, reddish, a little paler than secondaries above; the color is evenly distributed, except along internal margin of primaries, where, as usual, the wings are discolorously shaded with ci- nereous. The primaries show a yellowish discal spot and narrow sub- terminal band, obsolete before internal margin ; apices tinged with ob- scure purplish. The secondaries show a distinct, continued, yellow, subterminal band, running at variance with external margin, since it emanates at anal angle, and joins the costa within apical angle at a point continuous with the sub-terminal band of the primaries. ' Bxpavse, % $ , O.GO inch. Length of hoily^ 0.30 inch. Habitat. — Atlantic District. (Louisiana !) Resembles Haematia phoenicealis, IlUbner, but the primaries are more rounded at the apices, and they show a distinct discal dot; the secondaries, as also the under surface of both wings, are almost entirely bright reddish ; the corporal parts are also differently colored. A specimen, taken at New Orleans, was obligingly communicated to us by Mr. Wm. H. Edwards. B. diffissa, is also found in Cuba; spe- cimens, with the No. 454 attached to them, have been forwarded to Philadelphia by Prof. Poey. Botys haruspica, n. sp. (Plate 2, fig. 14, % .) Pyrausta harusyica, G. & R., MS. Head, palpi and thorax, obscure purplish cinereous ; lateral narrow pale lines extend along upper palpal edge to the antenn il bases. Ab- domen, dark cinereous. Beneath, the palpi and under corporal surface and legs are whitish cinereous; anterior femora, darker colored out- wardly. 20 GROTE AND ROBINSON. Anterior wings, acute ; above, rather dark purple ; fringes, long, yel- low. Centrally, the wing is crossed by three approximate, broken, irregular, transverse, yellow bands, which do not extend over the cos- tal region. The costal edge, apically, is yellow. The outer of the cen- tral yellow bands appears to enclose a sub-terminal sinuate line of the ground-color of the wing, and angulated inwardly below the middle. Posterior wings, silky, light purple, becoming paler and somewhat ci- nereous towards the base and along external margin ; an interrupted, oblique, yellowish streak, emanates sub-terminally within anal angle, and is obsoletely continued to costa at within apical angle ; fringes, yellowish. Under surface, pale testaceous; anterior wings, broadly shaded with obscure purplish along costal and external margins ; cen- trally, the markings of the upper surface are obsoletely indicated ; fringes, yellow. Posterior wings, faintly shaded with light purplish along costal and external margins; an obsolete, sub-terminal purplish line and discal spot; fringes, yellowish. Ej-jmnse, % 9 , 0.65 — 0.70 inch. Length of hoJi/, 0.30 — 9.40 inch. Hahitat. — Atlantic District. (Mass. to Penna. !) A somewhat variable species in the appearance of the central yellow markings of the upper surface of primaries, and of common occurence. Botys ganerosa, n. sp. (Plate 2, fig. 10, % .) Head, palpi and thorax, above, dull obscure blackish ; abdomen, blackish, the segments narrowly edged posteriorly with yellowish. Be- neath, the palpi, legs and corporal parts are whitish testaceous, silky. Anterior wings, dull obscure blackish, shaded obscurely and largely with dull brownish over the middle; two transverse dull black lines; the sub-basal acutely dentate, the last outward inflection the most jtro- minent; the sub-terminal, oblitjue, finely dentate, inwardly inflected below the middle of the wing. K squarish, yellow, discal spot. At the costa, the sub-terminal transverse line is broadly bordered out- wardly by a yellow band which, below the first median nervule is ob- soletely and quite narrowly continued to internal margin. Terminally, the wing is dark colored, and there is a faint series of black nervular marks before the external margin, on which latter rest a terminal se- ries of interspaceal dark dashes obsoletely separated; fringes, dark, paler at their outer extremities. Posterior wings, black or blackish ; a yellowish discal spot, and the base shows a few scattered yellowish hairs; a very broad and evident median yellow band, widest superiorly AMERICAN LEPIDOPTERA. 21 where it does not attain the costal margin, tapering to anal angle which it hardly reaches ; fringes, whitish, as is the costal margin. Under sur- face of wings, pale yellow; a black discal dot, sub-terminal band (this on the primaries is very broad, oblique, and discontinued at about the centre of the wing, when, below it, the sub-terminal line of the upper surface is apparent), and a broad, terminal, black shade on both pair of wings. Expanse, % , 0.80 inch. Length of hodi/^ 0.35 inch. Habitat. — Atlantic District. (Fenna. !) Resembles some of the European species referred by Westwood to Pyrausta. The primaries are less trigonate than in the common Botys iusequalis, Lethrej\ (^Ilcrhula insequa/is, Guenee). Botys ventralis, n. sp. (Plate 2, fig. 23, % .) iMal'^ and Female. — Blackish-brown, slightly glossy, varying in the depth of shade in the general color, which is sometimes ochraceous. Palpi, head and thorax, above, blackish-brown ; a narrow, white line margining the eyes on the "front;" abdomen, paler than thorax, con- colorous with posterior wings, the segments are obsoletely margined posteriorly with paler scales. Beneath, the palpi, legs and under tho- racic surface, are obscure or dirty whitish, the femora, inwardly, are darker shaded ; abdomen, obscure whitish, with a rather broad, dis- tinct, central, brownish ventral stripe, and, laterally, one on each side, narrower and impromiuent. Anterior wings, uniformly blackish-brown, concolorous, or nearly so, with the thoracic parts above. All the markings are obsolete, except the usual transverse posterior or post-median line, which is prominently angulated, being greatly produced outwardly, centrally, and which consists of a faint blackish line, connecting a series of white, irregular and variable white marks and spots, which latter are partly cuneiform and lunate as to their shape, discontinued at the sub-median nervure, (above which usually the largest is placed), and, as a whole, become, especially in the darker specimens, more or less obsolete and wanting. A similarly constituted discal dot, more or less distinct, and often ob- solete. Posterior wings, nearly uniform brownish cinereous, with faint traces of a median, interrupted and irregular darker line. Fringes, on both pair, paler than the ground-color of the wings, very glossy and rather long. Under surface of both wings, glossy, obscure brownish cinereous, slightly iridescent; the posterior wings are palest, and both pair without defined markings, except in so far as the ornamentation uf the upper surface is feebly reflected. 22 GROTE AND ROBINSON. Expame, % 9 , 1.10 — 1.15 inch. Length of hof?i/, 0.50 inch. Habitat. — Atlantic District. (New York 16 Penna. !) A conitnon and variable species as to its general coloration, and the distinctness of the markings of the upper surface of anterior wings. The coloration is, however, uniformly distributed, and thus the paler, more ochreous individuals are easily identified from the constancy of the main characteristics of the species; among the specific characters easily seized, are the longitudinal stripes of the inferior abdominal sur- face, a character to which we have alluded in the choice of the specific name. Botys ventralis, nob., resembles Tholeria illiberalis, H'dhncr^ Zutr. 3tes Hund., No. 175, p. 27, figs. 349 — 350, but is a smaller species, and wants the terminal white dots on the upper surface of primaries, while the extra mesial line of white dots is straighter and nervular in the South American species. Botys posticata, n. sp. (Plate 2, fig. 25, % .) % . Head and thorax above, pale ochreous brown. Labial palpi, prominent, beneath with a few whitish scales, laterally concolorous with head and thoracic region above. Abdomen, very pale obscure ochreous, beneath paler, whitish, as are the legs and under thoracic surface. Win"-s, shaped nearly as in Botys ventralis. Anterior pair ochreous brown, becoming of a clearer and brighter brown along costa and ex- ternal margin. Ornamentation simple; an inner, transverse, sinuate, blackish shade line ; two ill-defined, discal, dark maculations, of which the outer, the larger; an oblique, finely dentate, transverse, posterior, dark shade line, outwardly projected opposite the disc, succeeded by a coincident pale shade. An obsolete series of interspaceal dots on the margin. Fringes, silky, discolorous with the wing, being of an ob- scure wood-brown. Beneath, whitish ochreous; the blackish mark- ings of the upper surface repeated less distinctly. Secondaries, brown- ish testaceous, semi-transparent, dark shade along external margin ; very faint traces of a median, diffuse, dark shade line. Under surface resembling upper, but paler, more ochreous. EjcpanKc, % . 0.90 inch, LeiKjtli of boihj^ 0.40 inch. Habitat. — Atlantic District. (Penna !) Varies by the primaries being of an even, bright brown above, ob- scurin"; the ornamentation. AMERICAN LEPIDOPTERA. 23 Botys citrina, n. sp. (Plate 2, fig. 20, ? .) % 9 . Size, small. Bright ochre-yellow. Head and thorax ochre- yellow ; labial palpi, browuish-ochreous laterally, beneath white. Legs and under body surface, whitish, glistening ; anterior femora stained with ochreous inwardly. Abdomen, above, whitish, with a yellowish shade. Antennae, slender, long, testaceous. Wings, rather wide. Primaries, above, bright ochre-yellow, with simple ornamentations. A distinct, deep ochreous, longitudinal shade on costa, extending from the base of the wing to the inception of the exterior transverse line, fading as it proceeds, and not equally distinct in all specimens examined. An inner, regularly outwardly curved, deep ochre-yellow, transverse line. Two similarly colored discal ordi- nary spots. An exterior line, slightly oblique, and roundedly out- wardly pi-oduced opposite the disc. Fringes, concolorous with the wing. Under surface paler, especially along internal margin, where the wing is whitish. The markings of the upper surface are here re- produced more faintly and incompletely, but the costal shade stripe is wanting. Secondaries, resembling primaries in color. At base paler, and as well as along internal margin, somewhat whitish. A single, incom- plete, deep ochre-yellow, oblique transverse line, corresponding to the exterior transverse line of primaries. Fringes concolorous. On both wings the extreme external edge appears narrowly deeper colored. Beneath as above, but much paler, more whitish, evenly colored; the single, transverse, incomplete line, is here reproduced. Expanse, 9 , 0.80; % , 0.70 inch. Length of body, 9 ,0.30; % , 0.35 inch. JFahitaf. — Atlantic District. (New York! Penna. !) Differs by its small size, bright color, simple ornamentation, and by the costal darker longitudinal shade of the upper surface of primaries. Botys marculenta, n. sp. (Plate 2, fig. 21, 9-) 9 . Size, moderate. Pale ochrey -yellow. Head and thorax, above, ochrey-yellow. Labial palpi, dark ochreous laterally, white beneath. Legs, and under corporal surface, obscure whitish, glistening; anterior femora somewhat cinereous. Abdomen, whitish, stained with yellow above. Antennae, long and slender. Wings, full, clear pale yellow, with obsolete ornamentations. Prima- ries rather brighter colored about the base, but with a generally evenly distributed coloration. The ordinary lines and spots are faint, but per- ceptible, since they are traced in darker scales than the ground color of 24 GROTE AND ROBINSON. the wing, and are, with the basal portion, slightly dusted with brighter scales. An inner, waved, transverse line. Two ordinary diseal spots. An exterior, finely dentated. transverse line, which is prominently and roundedly outwardly projected opposite the disc. A faintly marked and straighter sub-terminal sh;>de line, difficult to discern, but quite distinctly marked in cinereous on the under surface. Fringes, conco- lorous, or a little paler than the wings. The external edge of both secondaries and primaries is narrowly lined with darker ochrey-yellow ; this is quite apparent on the under surface owing to the pallor of the wings, where the line appears broken interspaceally. Secondaries, resembling primaries. As usual, the ba.se, costal and internal margins are diffusedly paler and whitish, while the darker and yellow color is expressed centrally along external margin, fading me- dially over the centre of the wing. Outside of the disc the wing is crossed by two sub-parallel .shade lines, of which the inner corres- ponds to the exterior transverse line of the primaries; the outer, to the sub-median shade line. Fringes a little paler than the wing, be- coming whitish towards anal angle. Beneath, both wings are glistening, obscure whitish, with a slight opaline reflection. The markings of the upper surface are here more distinctly reproduced in pale cinereous. The costa of primaries and external margin of both wings are shaded with obscure ochrey yel- low. Expanse, $ , 1.00 inch. Length of hody^ 0.40 inch. Ilohitat. — Atlantic District. (Penna. !) Differs from Botys citrina, noh. by its larger size, paler color, indis- tinct ornamentation and by the presence of sub-median lines of both wings. Botys insularis, n. sp. (Plate 2, fig. 24, % ). %. Size rather large. Cinereous. Head, thorax and abdomen, of an even dull cinereous. Beneath, the short palpi, legs and abdomen are whitish cinereous, glistening. Legs, long, armature well deve- loped. Wings, full. Primaries with the tips a little produced, entirely and evenly cinereous, with obsolete ornamentation, but the usual exterior transverse line is faintly visible and greatly and roundedly arcuate at the middle. Fringes, a little paler than the wing, very silky. Secon- daries, a little paler than primaries, evenly cinereous, but becoming a little paler basally and along costal and internal margins. As on pri- maries, a single transverse, irregular, extra diseal shade line is barely AMERICAN LEPIDOPTERA. 25 visible. Fringes, paler than the wing, becoming whitish over anal angle. Undersurface resembling upper, but a little paler, especially on secondaries. The exterior lines of the upper surfoce are here re- produced, and there are faint indications of discal marks on both pair; those on the secondaries well removed towards the base of the wing. Expanse, l.l.i inch. Length of hodij, 0.45 inch. Habitat.— Cuba, (Poey). Coll. Ent. Soc. Numher 1029, IWi/'a MS. Cataloijue. Kesembles Botys dasconalis, WaJhcr, from our Atlantic District, but is a darker species, and wants the ochreous discolorations over the pro- thorax and from the base of the wing outwardly along the costa, which characterize our species, of which we have specimens from Massachu- setts and Pennsylvania. Botys coloradensis, n. sp. (Plate 2, fig. IS. 9 )• % 9 . Size rather large. White. The palpi laterally, head, above, and the sides of the thorax to the insertion of the primaries, are ochreous; the thoracic stains are very bright. Thoracic disc, white. Abdomen, above and beneath, pure white, as are the legs and under corporal surface generally ; the anterior tibiae are somewhat cinereous. In the male, the anal segments are faintly stained with pale yellow. Primaries of an even faintly yellowish white, stained at base, along costa, with bright ochreous. An interior angulated transverse line, two discal dots and an exterior slightly dentate transverse line medi- ally projected — all yellowish ochreous. A sub-terminal, similarly colored, shaded line, interspaceally broken. Fringes, whitish. Se- condaries, immaculate, sub-hyaline, whitish above and beneath ; fringes pure white. Undersurface of primaries resembling upper, but more whitish and somewhat obsolete, and reproducing the ordinary orna- mentation. Expanse., S $ , 1.15 inch. Length of hoJy., 0.G5 inch. Habitat. — Colorado Territory. (Mr. James Ridings), Botys gracilis, n. sp. (Plate 2, fig. 15, '^ ). % 5 . Size, small. Form, slender. Pale brownish testaceous. Palpi, white beueath ; laterally, covered with brown scales. Above, the head, thorax and abdomen are pale brownish testaceous; beneath, the legs and under thoracic and abdominal parts are whitish, glistening. Wings, elongate; ornamentation simple and typical. Primaries, evenly pale brownish testaceous. Costa and costal edge shaded with brown. A nearly straight, brown, transverse anterior line. Two di.s- TRANS. AMKR. ENT. SOC. ( 4 ) JUNE, 1667. 26 GROTE AND ROBINSON. cul. annulate, moderate, ordinary spots: the first, spherical ; the last elon- gate, sub-reniforiu in shape. Below the median nervure, a slight ag- gregation of brown scales. A brown transverse posterior line, slightly trembled below the costa, but running straightly outside the disc, over median nervules, where it is strongly inflected backwards to a point beneath the outer discal spot, running thence straightly to inter- nal margin. A very distinct, deep brown, terminal, regularly inter- rupted line. Fringes, rather long, with a faint linear basal shade on both pair. Secondaries, resembling primaries in coloration, thinly scaled. A brown discal spot, and a single brown transverse line, analogous to the transverse posterior line of primaries, and prominently inflected back- wards below the discal cell. A terminal, distinct, macular, brown line as on primaries. Beneath, both wings are paler than above, with the ornamentation of the upper surface more fluently reproduced. Expanse, % 9 , 0.90 inch. Length of hodi/, % , 0.45, 9 , 0.30 inch. Habitat. — xVtlantic District. (Mass. to Penna. !) A very slender, thinly scaled, and delicate species of common oc- currence throughout the Middle States. Diff'ers by its transparent brownish testaceous color and by the stained costal edge. Specimens occur in which the transverse anterior line of the primaries becomes obsolete along its backward inflection ; the primaries then appear to be crossed by tlLi-ec transverse lines. The obsolescence of this line at this point is not an unusual occurrence in other species of the genus and family. Botys adipaloides, n. sp. (Plate 2, fig. 19, 9 )• % 9 • Size, moderate. Head, prothorax and palpi, obscure brownish, beneath, white. Thorax, above, shading posteriorly to yellowish. Ab- domen, above, brownish; tlie seg ueuts are edged with whitish scales, basally mixed with yellow scales above. Beneath, the abdomen, tho- racic parts and legs are obscure whitish, silky. Wings, shaped nearly as in Botys adipalis, Z-lIcr, as illustrated by Lederer. Primaries arched before apices, on costa. External margin sinuate, retreating within the produced apices, thence outwardly rounded at extremities of median nervules. Secondaries with the apices well produced, the external margin receding immediately below them, thence evenly rounded to anal angle, lioth primaries and secondaries are rather bright clear yellow. All the markings are of an obscure purplish stone color, l^rimaries, dark dull brownisli along costa. An inner transverse narrow line. Two large (quadrate AMERICAN LEPIDOPTERA. 27 (liscal spots, of which the inner surmounts a third below the median nervure. A narrow, sub-serrate, transverse posterior line, projected outwardly opposite the disc. A very broad distinct terminal dark marginal band. Fringes, paler, with a basal line. Secondaries, re- sembling primaries. A basal interrupted line. An elongate discal spot. An exterior transverse sinuate line, interrupted along its infe- rior inward inflection, but distinct from internal margin to beneath the discal spot, where it is also straight; this portion of the line, being thus disconnected, assumes the appearance of an independent middle line. Externally, the secondaries are broadly margined as the primaries. The inner edges of these marginal bands are analogous on both wings, being outwardly oblique, thus constricting the bands over the middle of the wings ; before interal angles the bands are widened again, more suddenly on primaries. Beneath, the ornamentation is as on upper surface on both wings, but the ground color is very pale tes- taceous, not yellow, while the darker markings are also paler than on wings above. Expanse, % 9 , 0.90 to 0.85 inch. Length of boJj/, 0.45 to 0.40 inch. Jfabitat. — Atlantic District. (Mass. ! to Texas !) Smaller than the Cuban Botys togalis, Led., which the present species resembles in ornamentation, and apparently nearest allied to B. adipalis, Zeller, from Amboina; besides minor differences the dark margins are narrower in B. adipaloides, noh., and the inner discal spot is geminate in both sexes and on both surfaces of primaries. The bright yellow color of the wings is easily lost, and captured specimens appear to have an obscure ochreous testaceous ground color of the wings instead of the bright, rather clear and light yellow which is seen in clean and fresh individuals. Botys plectilis, n. sp. (Plate 2, fig. 17, 9 ). % 9 . Size moderate. Obscure fuscous, with a slight purplish re- flection. Head, thorax and abdomen, above, dull brownish fuscous, abdominal segments obsoletely margined posteriorly with pale scales. Beneath, obscure whitish, as are the legs, of which the anterior pair are inwardly darker colored. Labial palpi, moderate, extended hori- zontally beyond the front, concolorous with the upper body parts, with a few paler scales at base beneath. Wings shaped as in B. artificalis. Led. Primaries, largely obscure brownish fuscous. Ornamentation, simple, typical. A transverse inner 28 GROTE AND ROBINSON. line, obscured by the dark ground color of the wing. A square pale yellow discal patch, resting between the small dark discal dots. Trans- verse posterior line more distinct, brought into relief by a diffuse pale yellow shade, which latter obtains principally opposite the disc within the t. p. line. This latter is projected outwardly opposite the disc, where it is serrated ; below the yellow shade it becomes lost, owing to the dark color of the wings. A terminal dark shaded line resting on the external edge; fringes obscure brown, discolorous with the wing. Secondaries resembling primaries ; at base fuscous, the dark color ob- scuring a discal spot apparent beneath ; medially pale yellowish testa- ceous; a distinct median line, followed outwardly by an interrupted yellowish shaded line, so as to be brought into relief by the yellowish color on both sides, of the mtrmal conformation, serrated, outwardly projected opposite the disc. A terminal blackish interspaeeal line and fringes, as on primaries. Beneath, paler than above; primaries, darker shaded, with a slight opaline reflection; secondaries, wholly obscure ochreous. On both wings the ornamentation of the upper surface is repeated, the lines are here narrowly interrupted and macular. Expanse, S 9 j 0.70 to 0.90 inch. Leuyth of ioJi/, 0.35 to 0.45 inch. Hahitdt. — Atlantic District. (Penna.!) A common species, variable as to size. When rubbed, specimens present a different and paler appearance. B. plectilis, is allied to B. artificalis, Led., and certain European species of the genus. LIPOCOSMA. Ledcrcr. Lipocosma albolineata, n. sp. (Plate 2, fig. 22, 9 )• 9 . ^Vhitii^h ochreous. Head and thorax, whitish ochreous. La- bial palpi slight, divergent, thinly scaled, porrected and slightly ex- ceeding the "front." Legs and under corporal surface, white, glisten- ing; anterior tarsi and tibl;e, touched outwardly with bright ochreous. Abdomen, above, white. Antennae, moderate, slender. AVings full. Primaries, pale ochreous, with darker sub-terminal .shades. The inner transverse line is white, margined outwardly with an obscure coincident shade, and is regularly dentate, appearing some- what angulated at costa. Median space, diffusely shaded posteriorly by an obscure shade, deeper, more brownish than the ground color of the wing. Discal spot, sub-obsolete, whitish. Transverse exterior line, white, neatly margined by narrow dark coincident shade lines of which the inner is more distinct. The line itself is greatly and roundedly outwardly projected over the middle of the wing; towards the internal AMERICAN LEPIDOPTERA. 29 margin it bends inwardly, and is once waved; it is very regularly arcu- ate and minutely dentated on the nervules. Terminally it is again continuously obscurely shaded along the outer edge, as on median space immediately inside of the transverse exterior line, but the shade is here interspaceally broken by paler whitish scales on the nervules. A sub-obsolete series of very minute nervular black dots. Fringes, stained with yellow at base. Secondaries, largely white; the ochreous portion distinctly limited and confined to the mid- dle of the wing on external margin. x\. transverse white line, only visible wliere it crosses this darker portion of the wing, arcuate, and lined inwardly with a dark coincident linear shade. Fringes, whitish, stained with yellowish at base and medially. Beneath, both wings are whitish, faintly shaded with pale ochreous- brownish. The transverse exterior line of the primaries alone visible, very distinct and brownish. However, as on upper surface, it is in reality white, the apparent dark brownish line corresponding to the coincident dark shade line of the upper surface, since immediately be- yond it there is a second very faint and narrow dark line, and the nar- row space between the two is whitish, and thus is plainly analogous to the white exterior line of the upper surface with its dark margins. Disc of the primaries faintly shaded with brownish. Secondaries, very pale, resembling primaries. A single, irregular, brownish line, discon- tinued inferiorly, and seemingly running at variance with the short, white line of the upper surface. Fringes on both wings, yellowish. Uxpause, 0.G5 inch. Length of hod;/, 0.25 inch. Ilahltat. — Atlantic District. (Penna I) Differs from Lipocosma sicalis, (Walk.,) Led., by the less promi- nently angulated exterior lines of the upper surface of the wings, by the more ochreous color, and by the absence of the median, sub-discal, black dots and discolorations. 50 AMERICAN LEPIDOPTERA. EXPLANATION OF PLATES 1 AND 2. Fie 1,'^ Psephopaectes simulatilis. 2, 9 Adelocephala quadrilineata. 3, 9 Adelocephala bicolor. 4, 9 Adelocephala bicolor, (reverse.) 5, 9 Pericallia kentaria. 6, 9 Pericallia kentaria, (reverse.) 7, 9 Adelocephala grandis. 8,'J, Asopia unimacula. 9, 9 Asopia anihoecioides. 10,'^ Botys generosa. 11, '^Botys signatalis. 12,'^Botys laticlavia. 1.3,'^Botys cinerosa. 14,^ Botys haruspica. 15, '^Botys gracilis. 16, % Botys difflssa. 17,9 Botys plectilis. 18, 9 Botys coloradensis. 19, 9 Botys adipaloides. 20, 9 Botys citrina. 21, 9 Botys marcnleuta. 22, 9 Lipocosma albolineata. 23,'^ Botys ventralis. 24, '^ Botys insularis. 25,'^ Botys posticata. AMERICAN IIYMENOPTERA. 31 Catalogue of the described TENTHREDINID^ and TJROCERID^ of North America. BY EDWARD NORTON. [Communicated March 11th, 1867.] This paper is not presented as a complete monograph of these Fa- milies, but simply as a catalogue of the genera and species of this con- tinent, with references to all the described genera known to the com- piler, for the information of American students who have not access to the original descriptions. It is to be hoped that it will lead to a closer and wider study of these the most injurious of all Hymeuoptera to our trees and plants. As all of their larv;>3 live on leaves or woody fiber they may all be classed as injurious to vegetation. In some genera it is very difficult to define a true species, because of the variation in color. This is particularly the case in Nematus and in Teiitlirrdo. And doubtless some of the species described here, will prove to be varieties. Mr. Walsh has shown that in some species of Eaara and Nematus bred by him, it was almost impossible to detect any diiference in the imago, while the larvae varied greatly. Doubtless our present opinion will be greatly modified by future discoveries. The bullae which appear in the wing nervures of all these insects, and which are much noticed by Mr. Walsh, are only referred to in this work, because they have not been sufficiently studied by the writer. Although not caused by the folding and unfolding of the wings, they seem to indicate the points at which the wings are folded or unfolded, and the hinges at which they can be bent without breaking. As the same arrangement is often common to several genera, it seems probable they may prove of value in defining Tribes or groups of genera; a most desirable point, as will be seen in the deficiency of many of the gene- ric distinctions hereafter presented. It is fitting to acknowledge with thanks, the receipt of insects for examination from many persons, especially the following : A. S. Pack- ard, Jr., from Maine and Labrador; S. H. Scudder and A. F. Sanborn, from 31assachusetts ; J. Akhurst, W. H. Edwards and Mr. Calverley, New York and Virginia; P. H. Uhler and T. Glover, from jMaryland ; Baron Osten Sacken, District of Columbia and elsewhere. Thanks are also due to Prof. Agassiz for affording free access to collections in the Cambridge Museum; S. H. Scudder to the collection of Dr. Harris, in the Bost. Soc. Nat. Hist. ; E. T. Cresson, to the collection of the 32 EDWARD NORTON. American Entomological Society, and in giving most ready and valu- able information from rare books, only to be found there. Through the Smithsonian Institute, beside others, insects have been received from the following western localities : from the Hudson's Bay Terri- tory and Russian America, collected by Eobt. Kennicott ; from AVash- iugton Territory and Puget's Sound, by Dr. C. B. Kennerley; N. W. Boundary Survey, Lieut. G. Beckwith, U. S. A.; Pacific R. R. Sur- vey, near 38*^ N. L.; St. Louis, Mo., Dr. Engelmann ; Mexico, Dr. H. DeSaussure; also others mentioned in the course of the manuscript. A list of the described species of South America is added, which may be useful at some future time. SYNOPSIS OF THE ORDER. Order HYMENOPTERA, Liuu. Section I. Terebrantia, Latr. Sub-Section 1. Plujtipliaga. Division 1. Serrifera. 2. Terebellifera. 2. Entomopha(ja. 1. Spiculifera. 2. Tubulifera. Section II. Aculeata, Latr. Sub-Section 1. Prxdones. 1. Heterogyna. 2. Fossores. 3. Diploptera. 1. Tenthredinidae. 2. Uroceridae. 3. Cynipidae. 4. Evaniadae. 5. Ichneumonidae. 6. Chalcididee. 7. Proctotrupidae. 8. Chrysididae. 9. Formicidae. 10. Mutillidas. 11. Scoliadae. 12. Pompilidae. 13. Sphegidae. 14. Larridae. 15. Bembicidae. 10. Nyssonidae. 17. Crabionidae. IS. Vespidae. 1. Solitary 1. Masarim. 2, EUMENINI. 2. Social. 3. Vesi-ini. 2. Mellifcra, Latr. — Antliophila. 19. Andrenidae. 20. Apidae. AMERICAN HYMENOPTERA. 33 Order HYMENOPTERA, Linn. Characters. — Wings four; naked, membranous, the posterior pair smaller than the anterior, with comparatively few veins. Mouth with horny jaws, and with a lower lip or tongue, sheathed by the masillas. Tarsi generally five jointed. Abdomen armed with a multi valve saw ovipositor or sting in the females. Larva apod and vermiform (or cruciform and pedate in one group.) Pupa incomplete and inactive. Section L Terchranfia, Latreille. The abdomen of the females furnished with an instrument used as a saw or borer for depositing the eggs. Sub-Section I. Pliytiphaga. Abdomen sessile, or soldered in its full width to the base of the thorax. Group a. Serri/era. — TentliredinUlse. Abdomen of female armed with saws. Anterior tibiae with two api- cal spurs. Group h. Terehcllifera — Uroceridse. Abdomen of female armed with a borer. Anterior tibia; with one apical spur. Family TENTHREDINID.E, Leach. Antennpe. — The form and number of articulations or joints serves to indicate the principal divisions of the family. Head. — Eyes large, in general widely separated. Ocelli three. La- brum transverse or quadrate, pilose. Mandibles terminated with teeth, often unequal on opposite sides. Labium with three laminae ; labial palpi 4-jointed ; maxillary palpi 6-jointed. Wings. — The divisions of the genera and sub-genera are generally indicated by the number, form and position of the areolets. Tlie mar- ginal areolets are complete. TKANS. AMER. ENT. SOC. ( 5 ) JUNE, 1867. 34 EDWARD NORTOX. UPPER WING. (I. Stigma. (). Costa or costal margin. c. Apical margin. d. Costal and post costal veins. €. Externo medial. /, g. Anal. h. Posterior margin. •/. Marginal vein. j. Submarginal vein. /,-. First, second and tliird (transverse) submarginal nervures. /. Recurrent nervures (discoi- dai.) VI. Discoidal vein. n. First and second inner apical or submarginal nervures. Bullte or clear spots on the veins or nervures, with bullar or clear linos cross- ing them. 1. 2. Marginal or radial cells. 3, 4, 5, 6. Submarginal or cubital cells. 7, 8, 9. Discoidal cells. 10. Costal cell. 11,12. Brachial or medial cells. I-!, 14. Inner and outer apical cells. (Hinder cells, Harti.g. Cellule du limbe, Lepel.) No. 11 is sometimes the medial, and Nos. 12 and 13 the submedial cells. Nos. 9 and 14 the apical cells; Nos. 7 and 13 discoidal; Nos. 10, 11, 12, la, the 1st, 2d, 3d, and 4th brachial cells. 15. Lanceolate cell. — 1. Open. 2. Contracted. 3. PetioUite. 4. Sub-contracted, 5. With oblique cross nervure. 6. With straight cross nervure. Thorax. — This is generally wi. Wings with one marginal, not appendiculate cell. Four submarginal cells. a. Second and third submarginals each with a recurrent nervure. 1. Antennae of male furcate; of female slender, filiform 15, Sericocera. 2. Antennae of male furcate; of female somewhat clavate 16, Schizocerus. 3. Antennae of male simple; of female somewhat clavate 17, Atomacera. b. Second and intersection of second and third submar- ginals each with a recurrent nervure 18, Scobina. Three submarginal cells. c. First submarginal receiving two recurrent uervures..lil, Themos. AMERICAN HYMENOPTERA. 37 E. Wings with one marginnl, appendiculate cell. Threo submarginal cells. 1. First submarginal with twa recurrent iiervures 20, '>■■'• '^ 2. Second " " " " 21, 3. First and second submarginal each with one recurrent nervure 22, Didymia. Four submarginal cells. 1. Second and third submarginals each with one recurrent nervure. Posterior tibise without side spur 23, Ptilia. Posterior tibise with side spur 24, Hylotoma. 2. Second submarginal with two recurrent ner- vures 25, Pachylota. Subfamily .3. TENTHREDIXIDES.— Antennae 9-15 articulate. F. WiiHjs ivith one marginnl cell. Three submarginal cells. 1. First and second submarginals each with one recurrent nervure 26, Cladius. 2. First submarginal with two recurrent ner- vures 27, Pristiphora. 3. Second submarginal with two recurrent ner- vures Euura. Four submarginal cells. Antennfe 9-articulate. 4. Second submarginal with two recurrent nervures. Lanceolate cell closed in middle 30, Leptopus. Lanceolate cell petiolate ; posterior tibiae much flattened 29, Craesus. Lanceolate cell petiolate; posterior tibite as usual 31, Nematus. Lanceolate cell petiolate; second recurrent nervure received at intersection of second and third submarginal cells 32, Hessa. Antennfe 13-artieulate 33, Perreyia. " 11 " 34, Camptoprium. 5. Second and third submarginals each with a recurrent nervure. Antennae 10-articulate 35, Dictynna. " 9 " 36, Aulacomerus. G. Wings toith hoo marginal cells. Three submarginal cells. 1. First and second submarginals each with a recurrent nervure, Antennaj 10-articulate 37, Druida. 11 " 39, Fenella. 9 " " " short, subclavate 38, Fenusa. " " " long, slender. Third joint longer than fourth 41, Melicerta. Third and fourth joints nearly equal length. .42, Emphytus. 2. Second submarginal with two recurrent ner- vures 43, Dolerus. 38 EDWARD NORTON. Four submarginal cells. Auteniipe 9-articulate; second submarginal with two reourront iiorvuros. 1. Lanceolate cell closed 44, U. Dineura. 2. " " contracted V. Hemichroa. 3. Second recurrent nervure received at inter- section of second and third submarginals. W. Mesoneura. .3. Second and third submarginals each with a recurrent mrviire. Antenna; 11 — 15-articulate 40, Heterarthrus. " 9—11 I. Abdomen short, egg-shaped. Antennse 10 or ll-articulate 47,, Athalia. " 9 " short; wings broad in crassate 45, Sciapteryx. " 9 " wings as usual 48, Selandria. II. Abdomen lengthened. Antennse 9-artieulate. Coxae lengthened, large. 1. Antennse filiform, enlarged in middle 4fi, Waldheimia. 2. Antennse filiform, enlarged in middle 51), 1. Macrophya. .3. Antennse setaceous, long 2. Pachyprotasis. Coxse as usual. 1. Antennse short, thickened towards the aj^ex 49, AllantUS. 2, Antennse setaceous, long. Lanceolate cell with oblique cross nervure. Head not unusually extended back of eyes 51 , Taxonus. Head extended back of eyes 52, Strongylogaster. Under wings with one middle cell 5;!, Foecilostoma. Under wings with the outer cells complete 54, Perineura. Lanceolate cell with straight cross nervure. 55, Tenthredo. Lanceolate cell closed in middle (Synairema. i Subfamily 4, LYDIDES. — Antennse multi-articulate. H. Wings with one viarfiinal cell. Three subtnarginal cells. Antennse of males pectinate 57, Pterygophorus. Four submarginal cells. Antennse of males bi-pectinate 50, Lophyrus. Antennse of males pectinate Monoctenus. Antennte of males somewhat fissate 58, Tarpa. Antennae setaceous, long 59, Lyda. Subfamily 5. CEPIIIDES. — Antennre multi-articulate, neck elongate. I. Wings loiih tivo marginal and four submarginal cells. 1. Antennse subelavate, about 21-articulate ; abdomen compressed 60, Cephas. 2. .Viitennse subelavate, about 27-articulate ; abdomen compressed 02, Phylloecus. 3. Antennse filiform, abdomen sliort, cylindrical and subelavate 61, Janus. Subfamily 6. XYELIDES. — Antennse 13-articulate, third very l Zftrcn, Loach, Zool. Misc. Terithrcdo, Spec, Jurine, Fab., &c. Wings as in Cimbex, excepting that the lanceolate cell is closed ; they are generally fasciate ; the stigma is wider. Aiifeniise 6-articulate, third article long, slender and curved ; fifth and sixth fonuing an obtuse club. Head small, much narrower than thorax; eyes united behind in the male; maxillary palpi having the three first joints short, the three others elongate ; nasus retracted ; labrum advanced. Body glabrous; abdomen as in Cimbex, but rather more ovate and flattened, with deeper sutures in females ; basal plates not emarginate. Legs slender; femora of males not incrassate; tibiae with two obtuse apical spurs. 1. Z. infiatus. Znrcn infiatus, I^ortoii, Proc Bost. Soe. viii, l.jl, 9 • Greenisli-black ; abdomen blue-black, obovate, glabrous; apex of basal mem- brane whitish; legs testaceous; wings fasciate. Length 0.48. Br. wings 1.00 incli. 9 . Head and thorax metallic, greenish black ; antennte black, api- cal joints piceous beneath, apical joint of club longest; head coarsely punctured, and, with the prothorax and pleura covered with whitish hair; eyes large, reniform, partly inclosing ocelli and base of antennae; nasus not so much retracted as in Trichiosoma, with a sinuous edge and large fovea behind; thorax sparsely, abdomen finely punctured ; collar and abdomen blue-black ; the cenchri at sides of post-scutel, or- dinarily round, are oval and lengthened ; base of metathorax and of basal membrane whitish ; abdomen flattened, sutures distinct, curved ; each of the five apical segments having in the middle a transverse glau- cous band of fine hair, greenish beneath, the basal segments beneath and the legs brownish-yellow ; coxae at base and a band in middle of femora black ; wings hyaline, nervures and stigma yellow testaceous ; apex of superior wings, a broad band at tlu; stigma and a dense darker spot fuscous. Karmington, Conn. One specimen. Mr. Walsh informs me that he has both B $ from Massachusetts. 46 EDWARD NORTON. 5. ABIA, Leach. Abia, Leach, Zool. Misc. Tenthredo, Jurine, Fab. Wings as in Zarea. Antennse seven-jointed ; tliird article long and bent ; club obtuse, of three articles, the two last coalescing. Head small, eyes nearly meeting behind in male; nasus and labruni as in Zarea ; joints of maxillary palpi unequal. B(j
  • . A. cerasi. Abia cerasi, Fitch, Third Report N. Y. State Agr. Soc, 1859, p. 07—93. "Black; club of antennae 4-jointed; abdomen and thighs blue-black and the feet and tips of the shanks pale yellow; thorax thinly covered with pale greenish-yellow hair; wings transparent, smoky yellowish, with black veins, those on the basal third pale yellow. Length 0.60. Br. wings 1.35 inch." New York. (Not seen.) Dr. Fitch states that he bred this insect from one of two cocoons found on the wild cherry, and that the club of the antennae is 4-jointed instead of three, and the antennsc 8-jointed instead of seven. Cocoons coarse brown, firm and tough, cylindrical, with rounded ends. Length 0.80. Wide 0.38 inch. The insect came forth in March. 48 EDWARD NORTON. b. "Wings with first and second submarginal cells each receiving a rO(nir- reut nervure. 6. AMASIS, Leach. Amasis, Leach, Zool. Misc. Winr/K with two marginal and three submarginal cells; first and se- cond submarginal each with a recurrent nervure; lanceolate cell closed in middle. Antennae 5-articulate, the fifth forming an obtuse club. i?'t^a(? small ; eyes not approximating in the males; labrum short ; mandibles bidentate. Abdomen naked, punctate, depressed, basal membrane not visible. Legs short, the fourth posterior tibiaj with acute spurs; last joint of tarsi much shorter than that preceding. Inhabits Europe. a. Wing with first submarginal cell receiving the two recurrent nervure?. 7. PLAGIOCERA, Klug. Plaf/iocera, Klug. Whujs with two marginal and three submarginal cells ; first submar- ginal with two recurrent nervures; wings rounded at apex; lanceolate cell closed in middle. Under wings two middle cells. Antrnnse, 5-articulate; the fifth forming an obtuse truncate club. Legs. — Spurs simple ; claws with an inner tooth. 1. P. thoracica, Klug. Jahrb., 1834, 228, Tab. II, fig. 5.— Brazil. 2. P. Klugii, Brulle, Ilym. iv. 1846, 672, PI. 48, fig. 3.— South America. c. Wings with second submarginal coll receiving two recurrant nervures. 8. PACHYLOSTICA, Klug. Pachylostica, Klug. Wings. — Two marginal and three submarginal cells, the second sub- marginal with two recurrent nervures, hexagonal in form; lanceolate cell clo.sed in middle ; wings oblique truncate at apex; stigma forming an outward projection on anterior wings. Antennse, 5-articulate, the fifth forming a lengthened outward club. Legs. — The spurs lamellate. Only the females known. 1. P. tibialis, Klug, Monogr. 1824, 173, 1 ?; Jahrb., 228, 1.— Brazil. 2. P. violacea. King, Monogr. 174, 2 9; Jahrb., 228, 2.— Brazil. 3. P. albiventris, Klug, Monogr. 174, 3 J; Jahrb., 228, 3; Brulle, Ilym. iv, 671, PI. 48, 4.— Brazil. 4. P. chalybea, Pcrty, Delect. Am. Art. 1, 1830, 129, Tab. xxvi, fig. 2.— Brazil. AMERICAN HYMENOPTERA. 49 B. Wings with one marginal and three submarginal cells. First aud second submarginal cells each with oue recurrent ncrvure. 9. THULEA, Say. Thulca, Say, Bost. Jour. I, 18.35, 21.3. Win(/s. — Oue marginal and three submarginal cells. AntenniB 6-jointed, the sixth clavate ; second twice as long as first and second; fourth minute, shortest; fifth as long as third; sixth nearly as long as third and fifth, slightly dilated at tip. Scutcl large. 1. T. nigra. Thulca nigra, Say, Bost. Jour. I, 18.35, 213. " Body black; nasus and labrum green; spot before the wings, wing scale and feet yellowish green. " Length to the tip of the wings, three-twentieths of an inch. ^'Inhabits Mexico." Not seen. 10. ACOEDULECERA, Say. Acordulecera, Say, Bost. Jour., I, 1835, 21U. Whitjs — One marginal and three submarginal cells; first and second submarginal each with a recurrent nervure; first submarginal long; lanceolate cell wanting. Stigma large, as in Hi/lvtuma. Under-wing with one inner cell. It has but one marginal, two sub- marginal, one discoidal and two medial cells, and the externo-medial nerve joins the costa without bending, leaving the marginal cell with an acute angle behind. Antennse, six articulate, very short, not clavate, apical joint not en- larged, but somewhat globose. Bo(Jj/ short and stout, maxillary palpi having the three apical joints long, the sixth longest. Legs short ; the four posterior tibiae with a side spur, as in Hylio- toma^i apical spurs all sharp, claws simple. This genus would seem to require a separate division, as its anten- nae are filiform and not clavate, and its afl[inities are rather toward the Hylotomides or Tenthredinides. 1. A. dorsalis. Acordulecera dorsalis, Say, Bost. Jour. I, 1835, 200. 9 % . "Black: hyjiostoma, a spot at base of the tergum and feet whithish." Length 0.12—0.16. Br. wings 0.36—0.48 in. '' S 9 . Black, with minute whitish hairs ; nasus, labrum and mouth white; mandibles rufous at tip; thorax, with the anterior segment, curving to the base of the wing, white ; line of the insertion of the wings white; wings a little dusky; nervures fuscous; tergum pale TRANS. AMER. ENT. SOC. ( 7 ) JUNE, 1867. 50 EDWARD NORTON. yellowish on the basal disk; blackish brown at tip; venter more or less yellowish white, dusky or blackish at tip ; feet and coxae whitish green. Va): a. Feet and part of the costal rib green ; scutel and posterior portion of the stethidium whitish. Var. h. Thorax and abdomen entirely black." Indiana, (Say.) New England, Maryland. Wings with one marginal and four submarginal cells. Second and third submarginal cells eaeli with a recurrent nervure. 11. SYZYGONIA, Klug. Syzi/gonia, Klug, Jahrbucher, die Ins., 1834, 229. WiiKjs with one marginal and four submarginal cells, of which the first and second are the smallest, and the second and third each receive a recurrent nervure ; wings rounded at apex. Antennse. six-articulate, the sixth clavate, the third longest. Legs. Anterior inner tibial spur at apex bifid ! a.) Antennae 5-articulate before the club, (third submarginal cell not receiving the recurrent nervure.) 1. S. cyanoptera, Klug., Monogr. 1S24, 171, 9; Perty, Siii.x. and Mart. Delect., Ill, l.-'.O, PI. xxvi, 4.— Brazil. 2. S. cyanea, Klug, BruUe, Hym. iv, 671, PL 48, 2.— Brazil. a. S. aenea, Perty, Spix. and Mart. Delect. 1830. 130, PL xxvi, fig. 3. — BraziL /3.) Antennae 4-articulate before the club, (third submarginal wing cell receiving one recurrent nervure. 4. S. cyanocephala, Klug, Monogr. 1824, 180,2; Jahrb. 229, 2, PI. 11,6,1.— Brazil. The figure drawn by Klug has the marginal wing cell appendiculate. 12. PERGA, Leach. Perga, Leach, Zool. Misc. Latr. Xorw. Diet., 2d ed. Wings with one marginal, appendiculate cell and four submarginal cells ; the first and second very small, the second and third each re- ceiving a recurrent nervure. Antennse. six-articulate, the first five short, the last long and more dilated within than without. Inliabits New Holland. The following genus is thought by Brulle and Klug to belong more properly to Ilylotomidiie. 13. CEPHALOCERA, Klug. Cephalocera, Klug, Jahrbuch., 1843. 2d2. Wings with one marginal, appendiculate, and three or four submar- AMERICAN HYMENOPTERA. 51' ginal cells ; the first and second (or second and third, if one counts the incomplete cell at the base), each receiving a recurrent nervure. Antennse seven-articulate, third longest, seventh slightly enlarged. 1. Cephalocera'? calcar, n. sp. Testaceous; antennse and two vittse on thorax black; apical half of wings obscure. Length 0.24. Br. wings 0.52 in. 9. Testaceous; antennae villose, dark piceous, seven jointed, the first twice as long as second, the second four times as long as first, sixth slightly globular at tip, seventh as long as sixth, not clavate, (somewhat like Selandria ;') the two basal joints white; head and body testaceous; two vittge on side lobes of meso-thorax, five or six obscure spots on middle of tergum ; breast piceous ; legs testaceous, hinder tibiae at apex black ; the four hinder tibiae each with a side spur; all the apical spurs acute; first tarsal joint nearly as long as all the remainder; tarsi slender, not dilated, no patellcB visible; wings hyaline, all appendiculate, their apical half clouded ; nervures yellowish, stigma large, nearly white ; one marginal and four subuiarginal cells, the first nearly as long as second ; the 2d receiving the two recurrent nervures at or very near the intersection of first and second, and se- cond and third cells; first and second submarginal of equal length; third shorter, not much widened at outer end ; lower half of first sub- marginal cross nervure wanting ; lanceolate cell wanting, obsolete ; un- derwings one middle cell. Cordova, t. c. Mexico. (1 $ .) (Coll. of H. deSaussure.) This can hardly belong to Ccplmhcn-a^ which I have not seen, but seems rather a connecting link between IljloUmia and Tenthredinides, having the wings and side spurs of the one, and the antenna of the other. The bullae occupy the lower half of the first submarginal cross nervure, and most part of second and third. 2. C, pumila, Klug, Jahrbuch. 1834, 252. PL II, 10 % .—Brazil. Sub-Family 2. Hylotomides.* Westw. Antennae three or four-articulate; third joint long, and in the males often furcate ; marginal cells not appendiculate. * The arrangement of genera here presented is arbitrary, and probably in- correct, as the definitions of Klug are short, and founded only on the upper wing cells, and are apparently faulty, while the arrangement of other authors seems to be taken up without seeing the insects, and the very few sjiecimens within my reach do not agree with the diagnoses laid down. 52 EDWARD NORTON. C. Wings ivith tioo marginal and thre?. submarginal cells. 14. BLASTICOTOMA,* Klug. Blasticotoma, Klug, Jahrb., 1S34. 251, Tab. II, fig. 9. Wiiifjs with two marginal and three submarginal cells; the first and second submarginals each with a recurrent nervure ; lanceolate cell with oblique cross line ; under wings with two middle cells. Anfennse four-articulate — the third long^ the fourth very small. The males are not yet described. Inhabits Germany. The first submarginal wing cell probably has an incomplete cross line, as Klug says this genus has four submarginal cells, and other writers three. D. Wings with one marginal cell. Four submarginal cells. a. The second and third submarginal cells each with a recurrent nervure. 15. SERICOCEKA, Le Pel. MS. Sericocera, Brulle, Hym. iv, p. 609. Hylotoma, ««H;K-H!i;iJ«Jir. Klug, Jahrb., 249. Wings, one marginal, not appendiculate, and four submarginal cells, of which the second and third each receive a recurrent nervure ; lan- ceolate cell closed in middle; under wings with two inner cells. The })ull;i} in tliis differ from those of Iliihdoma in there being bat one, which is small, near the base of second submarginal cross nervure, from which two clearer lines run to the two bullae at the ends of the third cross nervure. Tihi-x all simple, (without side spurs). BruUe considers this to be identical with the eighth division of Hylotoma., Klug, doubtless on the ground that the first submarginal cell is wholly or partially incomplete. King states that the species have three submarginal cells, first and second each with a recurrent nervure. In the absence of proper data, I have chosen to consider the auten- n:\! of the 9 filiform, and those of Schizocerus 9 subclavate. Sericocera plumicornis, n. sp. Black, shoulders white, antennse % bifurcate, slender, curled, ciliate. Length, 0.28. Br. wings, O.fiO inch. % . Shining black. Antennaj black, third joint bifurcate, slender, decreasing in size towards apex, curled, ciliate; tegulae and prothorax white, remainder of body black; abdomen rather stout; legs black; * This is considered by authors as intermediate between Cimbicides and Ily- lotomides. Ilartig makes for it a separate sub-family. AMERICAN HYMENOPTERA. 53 anterior pair distinctly wliite before ; tibiae simple, first tarsal joint as lon. Sericocera alternator, n. sp. Ochraceous; head, metathorax and breast black; wings semi-obscure. Length 0.40. Br. wings 1.02 iu. 9 . Shining, ochraceous. Basal joint of antenna3 black, remainder wanting ; head not as wide as thorax, black ; eyes widely separated ; ocelli ruby colored ; nasus slightly emarginate; tegul* black ; thorax and abdomen ochraceous, with the metathorax, and a large spot on breast black; abdomen stout; coxec and legs black; the anterior pair pale before. Wings atnple, violaceous semi-obscure, darkest at base; stigma and nervures black; first submarginal cross nervure obsolete, second and third cells receiving the recurrent nervures in middle; third contracted to half its width below; lanceolate cell widely closed, that in lower wing wanting. .Talapa, Mexico. One female. (H. deSaussure.) 4. S. (Hylotoma) compressicornis, Klug, Jahrbuch. 1834, 249, 93, 9 . — Brazil. ;"). S. (Hylotoma) hypoleuca, Klug, Jahrbuch. 1834, 250, 95, 'J, .—Brazil. 54 EDWARD NORTON. 6. S. (Hylotoma) mesomela, King, Jalirbueh. 1834, 250, 94, 9.— Brazil. 7. S. (Hylotoma) nigrita, King, Jahrbuch. 1834, 250, 96, % .—Brazil. 8. S. (Hylotoma) piceiventris, Klug, Jahrbuch. 1834, 250, 97, 9- —Brazil. 9. S. (Hylotoma) praecox. Klug, Jahrbuch. 1834, 249, 92, % .— Bahia, Brazil. 10. S. spinolae, Brulle, Ilyia. iv, 1846, 669, %. PL 47, fig. 5.— South America. 16. SCHIZOCERUS, Latr. Schizocera, Latr., Lepel. et Serv., Brulle, Westw., Stephens, Hartig, Curtis, &c. Hylotoma, * * * Klug. Ciyptus, Leach, Lepel. Wiiujs. — One marginal, not appencliculate, and four* submarginal cells, tlie first imperfect (or with obsolete nervure,) and the second and third each with a recurrent nervure; lanceolate cell petiolate; third submarginal narrow, not greatly wider above, the cross-uervures curved, nearly parallel; submarginal bulUie five — one on first transverse ner-' vure, one near the reception of first recurrent nervure, one near the base of second, and two on the third transverse nervures. Antcnnse 8-articulate, bifurcate above the second article in the males, either clavate or long and simple in the females.'j' Tihisi simple. 1. S, plumigera. Hylotoma plumigera, Klug, Berl. Mag. vi, 1814, 306, 37. B. a.; Jahrb., 243, 71. Cryptus Klwjii, Leach, Zool. Misc. Ill, 125, 2 -J, 9 . Lepel. Monogr. 53, 150 -J, 9. Schizoccrus Klugii, Lep., et Sel. Encyc. Meth. Ins. ix, 573. 9- Antennte black; Head black; thorax saffron-yellow; abdomen yellow, anus black; legs black, the anterior yellow ; wings fuscous hyaline. Long 2| lines. Br. wings 6i lines. %, . The male has the back black, with antennse above the second article bifid and quite ciliate. Klug adds : "Nasus, mandibles and palpi, clear brownish; spot on thorax enclosing most of middle lobe; a black-brown spot on breast; legs yellow, the tarsi dusky ; wings throughout a uniform blackish co- lor ; nerves and stigma dark brownish; femora at base, and tibiae, also the tarsi are sometimes blackish." Georgia, (Leach.) New York, (Klug.) A female from the Eastern States has the antennae short, the head black, a vitta on anterior lobe of mcsothorax, spots on metathorax, a spot on breast, apical segment of abdomen, and the three apical seg- *• Lepel., Klug and Hartig, give this four submarginal cells. Brulle and Ste- phens but three. f Westwood and Stephens state that the antennae of the females arc long and simple. Lepol. calls them clavate. AMERICAN IIYMENOPTERA. 55 luents of venter black ; legs wholly black, except the anterior femora at tip before, and the tibicB and tarsi pale; wings clouded, darkest at base ; first submarginal with incomplete cross-line ; the second and third narrowest at top and bottom, their outer nervures curved. In this species the second submarginal bulla is at the reception of the first recurrent nervure. Specimens from Colorado are a little larger, and have the back of head more or less yellowish. These may prove to be a separate species. Long 31 — 4 lines. Br. wings 7 — 8i lines. 2. S. abdominalis. Schizocerus abdominaiis, Cresson, Proc. Ent. Soc. Phil, iv, 1805,243,2, %. Length 3J^ lines. Br. wings 7i lines. '■ % . Black, polished ; face clothed with short, pale, sericeous pu- bescence ; mouth piceous ; antennoe as long as the head and thorax, black; the third joint pale within, furcate and clothed with long black pubescence. Thorax smooth and polished ; prothorax honey-yellow ; tegulfe piceous. Wings ample^ tinged with fuliginous, especially about the base; nervures and stigma black. Legs shining black, the ante- rior tibiae and t-irsi pale. Abdomen bright honey-yellow, with two transverse spots at the extreme base and the extreme tip fuscous." Colorado Territory. This is probably the male of the specimens of S. pliimvjera from Colorado. 3. Schizocerus ebeaus, n. sp. Black; antennae furcate, anterior legs pale before; wings blackish. Length 0.18. Br. wings 0.50 inch. % . Shining black ; antennae furcate above second joint, filiform, pilose, juncture of second and third joints pale; nasus emarginate ; mouth black ; body and legs black, the anterior pair pale beneath be- low the knees; hinder tibiae somewhat swollen at apex; wings black- ish opaque ; near the apex less obscure ; first submarginal cross-ner- vure obsolete ; second and third submarginals contracted at top and bottom, third submarginal narrow ; fourth submarginal quite large. New York. One % . In this and all the following species the second submarginal bulla covers most of the nerve between the recurrent nervure and the second transverse vein. 4. Schizocerus sericeus, n. sp. Black, the head and thorax bronze sericeus ; tegulse and two edges of anterior angle whitish; wings hyaline. Length 0.26— 0.30. Br. wings 0.50— 0.60 inch. 9 . Black : antennae short, not reaching scutel, clavate, but larger in the middle than at apex, second joint very short; head and thorax 56 EDWARD NORTON. with inctiillic reflections and covered with short whitish pile; ridue be- tween antennae elevated; nasus eniarginate ; palpi pale; teguhB and anterior angle waxen-white; a semi-obsolete whitish band on apex of each segment of tergum ; abdomen stout; legs with the cox?e, a band on all the femora and apex of posterior tibiic blackish, remainder fuscous, paler before ; inner space of anterior tibife large and obtuse; wings hyaline, very faintly clouded ; nervures brown-yellowish at base; first subniarginal square, not rounded behind; second and third cells receiv- ing the recurrent nervures near their base; third subniarginal large, foi'm approaching that of Atomacera. Maine ; Illinois. 5. Schizocerus privatus, n. sp. Black, with sotni-Db.scuif wings; abd>men yellow-rod. Length 0.20. Br. wings 0.54 inch. 9 . Black. Antennae moderate, flattened above the middle and thus appearing filiform from above, pilose; head wide, nasus yellowish. Thorax black, except the sides of metathorax and basal plates, which, with the abdomen are yellow-red, tip of ovipositor sheath black ; legs black, their four hinder coxae, trochanters, and base of femora yellow; wings blackish, sub-opaque, the first subniarginal cell distinct, but the dividing nervure obsolete in middle; third submarginal quite narrow. La. New Orleans. One 9 • This may be the same as Atomacera cellularis of Say. 6. S. (Hylotoma) alljicollis. King. Jahrb., 18:54, 245, 76, 9 .—Brazil. 7. S. (Hylotoma) brasiliana, King, Berl. Mag. vi, 1814, 308, 40; Jahrbuoh., 245, 75. — Brazil. 8. S. cyanoptera, Pcrty. Spix and Mart., Dtdect. Ilym. IS.'JO, lOO, Tab. x.xvi, 4. —Brazil. 9. S. (Hylotoma) filicornis, King, Jahrbuch., 18.S4, 244, 74, % 9.— Brazil. 10. S. (Hylotoma) gibba, King, Jahrb., 1834, 245, 77, 9, Tab. II, fig. 7.— Brazil. 11. S. hyaloptera, Pcrty, Spix and Mart., Delect. 1830, l,^0, Tab. xxvi, fig. C— Aniaznn. 12. S. obscura, I'.rulhS Ilym. iv, 1846, 668, PI. 47, fig. 4.— South America. v.',. S. xantboptera, Perty, Spix and Mart., Delect. 1830, 130. Tab. xxvi, fig. 5.— Rio Negro, Brazil. 17. ATOMACERA, Say. Atomarcrn, Say, Bost. Jonr, I, 18;;.), i;i2. '• Whifjs. — One margintil. not appendiculate, and three or four sub- marginal cells, the dividing nervure between first and .second being ob- solete" or sub-obsolete; third submarginal with the cross-nervures ratlier widely separated, the outer nervure nearly twice as long as the AMERICAN HYMENOPTERA. 57 inner, au obtuse angle at the reception of the second recurrent nervure. Anfcnnse 3-articulate, simple, ciliate in male. Bodi/ short. Tibise simple. 1. A. debilis. Atomucera debilis, Say, Bost. Jour. I, 1835, 212, 1 . '^ . "Blaek; tibise whitish. Length 0.15 inch. % . Body black, polished ; antennae, cilia; longer than the transverse diameter of the antennae ; mouth dull piceous ; wings fuliginous, a little paler at tip ; first and second cubital cellules confluent; tibia-, anterior pair dull pale yellowish." Indiana. Not seen. Mr. Walsh writes, that he has taken one specimen in Illinois. The antennre about three-fifths as long as body, the third joint of ecjual thickness to the middle, beyond which it tapers a little to the tip ; the first submarginal cross-vein is distinct. lie thinks A. ni/ico/lis to be the 9 of this. 2. A. cellularis. Atoinacera cellularis, Say, Bost. Jour. I, 1S35, 21:'.. 2, J. Black; abdomen rufous. Length, less than nno-fuurth of an inch. 9 . Body black, polished ; antennte distinctly and rather densely ciliated with hairs, which are a little shorter than the transverse di- ameter of the antennae; nasus, labrum and palpi whitish; wings dusky violaceous; cubital cellules three; the second very small, hardly one- third the length of the first, and but little wider at its tip than at its base; abdomen entirely yellow rufous; feet, coxae, trochanters and base of the tibia) whitish ; anterior pair of tibia; dull whitish. Indiana. ;;. A. ruficollis. Atomarcra rujicollis, Norton, Proc. Ent. Soc. Pliil., 1864, 6, 7, 9 . Black; the prothorax above, niesothorax and scutel rufous; wings sub-viola- ceous. Length 0.17. Br. wingso.40 inch. 9. Shining black, short and stout; antenna; black, short, thickly ciliate; second joint very short; third hardly clavate, but decreasing gradually in size to tip; the fourth and fifth joints of palpi flattened and enlarged, apical joints of equal length, but slender; basal third of antennae above and beneath ferruginous ; tegulai, anterior angle, nieso- thorax and scutel yellow-red ; legs black, their anterior tibiae dull whitish before, their spurs short and sharp ; wings ample, violaceous, sub-opaque, clearer toward apex, stigma large ; four submarginal cells, second and third each receiving a recurrent nervure; lanceolate cell petiolate; under wings with two middle cells. TRANS. AMER. ENT. SOC. ( 8 ) JUNE, ]Sfi7. 58 EDWARD NORTON, Peuna.; Virginia, (Coll. Am. Eat. Soc.) Illiuois, (B. D. Walsh.) Three females. The abdomen is short and stout and pi)iuted like JV^cmafus. b. Second and intersection of second and third subniarginal cells each with a recurrent nervure. IS. SCOBINA, Lepel. Hijlotoma, f f f Lepel., Monogr. 1823, 48, 140. Scohina, Lep. et Serville, Encyc. Meth. x. 1827. Brulle, Hyra. iv, 609. Wings. — One marginal, not appendiculate, and four submarginal cells, the second and intersection of second and third each receiving a recurrent nervure. Antemix of females villose, clavate, sub-capitate. Tibiae simple. — Brulle. The four hinder tibife unispinose in the middle. — Lepel. Country unknown. Three submarginal cells. 19. THEMOS. Hylotoma, *SKiK;:-«-;;:-;f^ Klug, Jahrbuch,. 1834. 249. Wings. — One marginal, not appendiculate and three submarginal cells, of which the first receives two recurrent uervures. Tiblec all simple. 1. Themos hyaline, n. sp. Head and thorax ochraeeous; abdomen black; wings violaceous opaque, at ajiex hyaline. Length 0.4S. Br. wings 0.49 inch. S . Antennae very short, not reaching scutel, clavate, villose with short brownish hair; color black, the two basal joints pale. Head nearly as wide as thorax, color of both ochraeeous; tegulse same color; metathorax and abdomen black, with bluish reflections; abdomen stout, wider in middle. Anterior legs ochraeeous, the tibire black above, posterior legs purple. Wings ample, brownish violacejus, opaque, apex of upper pair abruptly and perfectly clear; first submar- ginal large, and receiving two recurrent uervures; lanceolate cell pe- tiolate ; under wings with two middle cells, the lower one diamond- shaped, small, its lanceolate cell small. But one bulla in each of the submarginal cross-uervures. the outer one small and in the middle of the nervure. Pennsylvania. One male. This came from the Smithsonian Institute and is marked I'ennsyl- vauia. but is probably from Mexico or South America. 2. T. (Hylotoma) Olfersii. Klug, Jahrbuch.. 1834, 249, 91, % . Brulk'. llyni. iv, 669.— Brazil. AMERICAN HYMENOPTERA. 59 3. T. (Hylotoma) surinamensis, King, Berl. Mag. vi, 307, 38. B. b. ; Jalirbucli., 249, 90.— Surinam. E. Wings icith one marr/inal cell appendiciilate. Three submarginal cells. 20. HYLOTOMA, »**«* Khig. Hylotoma, ««•:-*«■ King, Jahrbuch., 1834, 248, 88. Wings, one marginal, appendiciilate and three submarginal cells, of which the first receives two recurrent nervures. Tibise, all simple. 1. (Hylotoma) formosa, King, Jahrbuch., 1834, 248, 88, 9 .—Brazil. 21. HYLOTOMA. King. Hylotoma, «-»«-«-«*, Klug, Jalirbuch., 1S3-1. 248. ^y!n(Js, one niargiual, appeiidiculate and three submarginal cells, of which the second i-eceives two recurrent nervures. Tibise all simple. 1. (Hylotoma) leucocephala, King, Jahrbuch., 1834. 248, 89, 9.— Cayenne. 22. DIDYMIA, Lepel. et Serv. Hi/loto7na, fff, Lepel., Monogr. 1823, 48. Hylotoma, a-'S-s-;;:-^ Klug, Jahrbuch., 245. Dklymia, Lepel. et Serv. Encyc. Meth. 1827, x. ; Brulle, Hym. iv, 668. Gymvia, Lepel. MS. Wings, one marginal, slenderly appendiculate and three submarginal cells, of which the first and second each receive a recurrent nervure ; lanceolate cell contracted. Antennse 3-articulate; furcate in the males above the second article. Tibix all simple. Remainder as in Hylotoma. 1. D. concinna. Hylotoma concinna, Klug, Jahrbuch., 1834, 246, 82, %. PI. II, fig. 8. "Antennte longer than the abdomen, furcate, ciliate, pale; with the apex of abdomen and the hinder tarsi black; wings fuscous in the middle, fuscous hy- aline." " Somewhat larger than //. plnmigeva ; pale yellow ; head between antennae shining brown; antennas dark at tip; anterior legs wholly yellow; hinder legs yellow, M'ith the tibijic!, spines and tarsi blackish ; wings in the middle pale yellow, transparent; at base and tip blackish ; nerves and stigma yellow. Mexico. One male." Not seen. In the colored plate this is figured with the head and apex of abdomen black, and the apical half of marginal cell and basal half of both pair of wings very dark. 60 EDWARD NORTON. 2. D. versicolor. Ili/lotoma versicolor, Klug, Jahrljuoh., 18:54, 246, 83. J. "Luteous, with the vertex of head, back of thorax and apex of abdoineu black; wings black, in the middle flavo-hyaline." "Hardly as large as the H. mehuiictcra. Head smooth and shininij; black, iu front pale yellow; antennae as long as to scutel, compressed, ^covered with fine hair, dusky, somewhat bent outward at the tips. Thorax above yellow ; lobes distinctly separated, smooth and shining ; middle of the middle lobe and the whole of the side lobes black ; ab- domen yellow, tip black ; legs yellow ; posterior tibiae at tip and final i lints of tarsi blackish; wings large, yellow, transparent ; their base, a cross band before the middle and tips black ; nerves and middle of stigma yellow, other nerves black." Mexico. One female. The antennae of female much flattened at base of third joint, their basal half yellow; scutel and metathorax pale; marginal wing cell be- yond the middle and all the apical cells obscure ; one-fourth of the wing at base dark, with an oval, clear spot in the middle of first and second brachial cells ; stigma pale, large, almost triangular. Lanceo- late cell petiolate, small. There are three submarginal cells, of which the first is more than twice as long as the second ; second quite short ; appendiculate cell not slender. The male has the antennj\} furcnte, formed like those of 9 , »'^t so much compressed. Length 0.32. Br. wings 0.72 inch. Cordova and Tampico ; 3Iexieo. One S , two 5. (H. deSaussure.) :<. D. fusca. Jli/lotoma/usca, Klug, Jahrbucli., 18o4. 247, 87, %. "Antennae furcate, fuscous bhick; the wings obscure liyaline; costa and .stig- ma yellow." '•Of the usual form and size. Head deep black, with furcate, finely ciliate antenn;\; ; back of thorax black, anterior lobe at tip yellow; ab- domen wholly black-browti ; wings blackish transparent, with black nerves, yellow costa and stigma; legs yellow, femora, tibi;y at apex, and final joints of tarsi blackish. ^lexico. One male." Not seen. 4. D. (Hylotoma) elegans, Klug, Jahrbuch., 18.34, 247, 84, % 9 .—Brazil. a. D. (Hylotoma) hirticornis. Klug, Jahrbuch., 1834, 247, 86, 9.— Brazil. (•>. D. (Hylotoma) lugubris. Klug. ,I;ihrliuch., 1834, 247, 85, 9.— Brazil. 7. D. (Hylotoma) Martini, Lepel., Monogr. 1823, 48, 139, %. Klug, Jahrbu.Iier, 246, 80.— Brazil. ni'lymia Martnii, Brullc, llyui. iv, 0159, PI. 47, fig. 8, % .—Brazil. -AMERICAN IIYMKNOPTERA, 61 J^. D. (Hylotoma) melanictera, King, Bcrl. Mag. vi, 1810, 309,41; Jalirbuclior, 245, 78.— Para. y. D. (Hylotoma) trigemina, Klug, Berl. Mag. vi, ISlC, ?,Q7 , '.'.d ; Jalirb. 240, SI.— Brazil. Wini/.<; loiih one marginal and four subrnarr/inal celts. 1. Socond and third submarginals each witli a I'ocLirrenl iiervurc. Posterior tibife without side spur. 23. PTILIA, L.'pel. Pfilia. Lppel., Monogr. 1823, 49, k. Westwood, Mod. Class., App. 52. H;/lolo?na, **, Klug, Jalirbuch. Hylotoma, A, Stepliciis. WiiH/ii with one marginal, appendiculate, am] four submaruinal cells, of which the second and third each receive a recurrent nervure ; the third produced and wider on its upper edp;e. Antennx 3-articulatc, of females pilose, somewhat filiform, of males furcate. Tihif£ all simple. Lepel., in his original diagnosis, gives but three submarginal cells. Brulle in his synopsis confounds this with Saricocera. 1. P. biramosa. Ili/lotoma biramosa, Klug, Jahrbueh., 1823, 242, 64, % . "Antennae furcate, black ; thorax before and on each side wliite; abdoniou luteoLis, with tlie sides black at base. Larger than II. f areata." " % . Head black, with white hairs; auteunoe bifurcate, the branches ciliate; corselet white, black in the middle, with white hairs; scutel and tegulae black; legs brownish, thickly hairy; wings dusky, at tlie base clear, transparent; nervures and stigma black; two recurrent nervures touch the second submarginal cell, the second in the middle, and the first at the junction of the first and second cells; abdomen reddish-yellow, toward the base whitish; the second and third seg- ments black at the sides-'' " Mexico. One male." A female from Mexico agrees with this description. The antenn;i3 are like Hijlotoma, compressed, ciliate within. Anterior angle white. Legs black, with the femora and tibiae whitish before, pilo.se, all the spurs stout, rather obtuse ; wiags evenly violaceous, their basal fourth })erfectly el^ar; the appeudiculate cell is rather large; the first and se- cond submarginals are of equal size, the second receiving both the re- current nervures; the third much retracted below, about one-third as wide as above ; lanceolate cell widely contracted, apparently petiolate ; under wings not appendiculate, with two middle cells, the lower very 62 EDWARD NORTON. small ; lanceolate cell very small, with an interrupted cross-nervure in bracliial cell above it. Length 0.36. Br. wings 0.96 inch. 2. Ptilia filiformis, u. sp. Black; the anterior angle rufous, most of the legs white; antennje long, fili- form, ciliate ; wings sub-hyaline. 9- Length 0.28. Br. wings 0.72 inch. %. Length 0.24. Br. wings 0.54 inch. 9 . Shining black ; antennae as long as to base of abdomen, very slender, curled, gradually decreasing to tip, thickly ciliate; labrum hairy, palpi black, second joint white; head and thorax polished; an orange-colored spot on shoulders covering tegulae, anterior angle and behind; legs black, the tips of coxas, trochanters, four anterior femora at apex and tibiae, except at tip, all of posterior femora and their tibiae, except at tip, white ; all the tarsi blackish ; spurs rather obtuse, claws simple ; wings violaceous, subhyaline, nerves, stigma and costa black ; appendiculate cell very small; the first and second submarginals of equal length, third about two-thirds as wide below as above; the first recurrent nervure received in middle of second submarginal, and the second at junction of second and third; lanceolate cell widely contracted; under wings two middle cells; their lanceolate cell very small, with an imperfect cross-line above. % . The male has the third joint of antennae bifurcate, very slender, ciliate, curled ; the spot on anterior angle extends over one-half of pleura; abdomen slender. Cordova, T. C. Mexico, (Coll. of H. deSaussure.) The difference in the form of the antennae is very marked, as well as the position of the recurrent nervures. .'5. P. brasiliensis, Lcpol.. Monogr. 1823, 60, 143, 9 •—Brazil. 4. P. (Hylotoma) ephippiata, Klug, Jahrbuch., 1834, 242, 63, '^.—Surinam. 0. P. (Hylotoma) gonagra. King., Jahrbuch., 1834, 241, 61, 9-— South Brazil. 6. P. (Hylotoma) ovalis, Klug, Jahrbuch., 1834, 241, 62, 9 .—Montevideo. 7. P. pubicornis. Hylotoma 2>ubicornis, Fab., Syst. Piez. 21, 5, 9 9 • rtilia! jmbicornis, Lepel., Monogr. 50, 144. — South America. 8. P. (Hylotoma) plumicornis, Klug, Jahrbuch. 1834, 241, 60, 9.— Brazil. Posterior tibice witJi a side spur. 24. HYLOTOMA. Jli/Iotoma, Latr., Nouv. diet. d'Hist. Nat. Fabr., Div. 2*'---, Pal. de Beaiiv, Leach, Lepel. t, Klug*, Ilartig, Stephens, &c. Arge, Scliank. Cryptus, Jurine, Hym. 1807, 49. Tenfhredo, Linn., Schank, Ames. &c. Wiiitj!^ with one marginal, appendiculate, and four submarginal cells. AMERICAN HYMENOPTERA. 63 somewluit equal, first shortest; second and third cells receiving a re- current nervure ; lanceolate cell contracted; under wings appendicu- late, with two middle cells; stigma of upper wings large, distinct, semi-ovate within; submarginal bullae, six, viz.: one near bottom of first transverse vein, one on submarginal vein just beyond the first re- current nervure, sometimes but rarely actually at the point of recep- tion, and two on each of the second and third transverse veins. In the dark-winged species a paler line connects these bullae. Anttnnse, 3-articulate ; third article long, (composed of numerous soldered articles,) filiform and ciliate in males, shorter and rather cla- vate in males and neai'ly glabrous. //(•rtr/ transverse, with a tubercle between antennae; labrum trans- verse; mandibles without distinct teeth ; (emarginate, Lepel. ; biden- tate, Stephens); joints of maxillary palpi lengthening regularly from base to apex. Bod^ rather short and stout, scutel large, sometimes prominent be- hind, produced to an obtuse angle, the post-scutel forming a lunate ele- vated ridge, the cenchri on each side white, lengthened, oval. L% . Lepel., Mon. Tenth. 47, 133. Hylotoma sanguinea, Klug, Berl. Mag. vi, 299, 22 ; Jahrbueh., 231, 20, 9 . Hylotoma scutellata, Say, Bost. Jour. I, 211, 1, 9- Color blue-black; scutel, pleura and abdomen, except at apex, eoccineous : wings violaceous. Length 0.45. Br. wings 0.94 inch. 9 S . AnteiiDfe in both sexes as long as tliorax, piceous, palest to- ward tip ; second article as long as first, both slightly obliriuely trun- cate above; head, thorax, apex of abdomen and legs shining blue-black ; scutel, anterior angle, pleura and abdomen bright red, sometimes yel- low-red ; third joint of palpi swelled; side spines of tibi.'B black; api- cal spines rather long; inner spine of anterior tibiae blunt. Wings violaceous sub-opaque, usually darkest toward base ; a large dark spot covering all of the marginal and the upper half of submarginal cells; under wing less obscure. Var. a. Scutel blue. New York ; Virginia. Var. b. Scutel blue. Tergum mostly blue. Illinois, (Walsh). New England, New York, Pennsylvania, District of Columbia, Kan- sas. Georgia, (Klug). 10. H. procera. Hylotoma 2^ roeer a, Klug, Jahrbueh., 1834, 235, 38, 9. "Red, with the thorax before and legs blue-black; abdomen testaceous, anal segment blue-black. Length 6 lines. % . Antennae black, almost as long as thorax ; head .shining blue- black; the back of thorax yellow-red, bordered with blue; wing-scales and legs deep blue; wings dusky brownish, transparent, with black nerves and stigma; abdomen reddish-yellow, the last ventral segment shining blue; body slender." Mexico. Not seen. 11. H. poecila. Hylotoma 2>oecila, Klug, Jahrbueh., 1S34, 239, 54, %. "Testaceous; the head, sj^ots on thorax, apex of abdomen, tibife and tar.-;i black; wings fuscous, in the middle hyaline." Length 0.2S — 0.32. Br. wings 0.60—0.68 inch. " % . Head and antennae black, palpi yellow. On each side of scutel is a black spot ; the four last segments of abdomen as well as the tarsi and hinder tibiae are black ; wings transparent in the middle, with yellow nerves ; their base and tips blackish, with black nerves, (that is, they are blackish, with a clear band across the middle) ; costa to- ward the end and stigma yellow." IMexico. AMERICAN HYMENOPTERA. 69 The antennae are long, as long as to third segment of abdomen, se- taceous, densely ciliate; second joint yellow; nasus and labrura emargi- uate, with a sharp ridge from edge of nasus to venter, dividing between antennae, and enclosing lower ocellus in a long, deep basin; third joint of palpi short, globose, fourth enlarged at apex, the two black vitti^ are on the side lobes of mesothorax ; the spurs are pale, long and sharp, the inner spur of anterior tibire twice as long as the other, and sharp. Intermediate tibire and all the tarsi black. The wings are obscure black, with a yellowish hyaline band across their middle, edges dis- tinctly marked; first submarginal cell short, and wider than long; se- cond recurrent nervure received at or near intersection of second and third submarginal cell. The female resembles the male. Cordova, Tampico, Mexico, T. C", Huastec, t. f. Mexico, (H. deSaus- sure.) (12 S , 2 9 .) This and the two following species and probably that preceding, are much more slender than the northern species. 12. Hylotoma fascialis, n. sp. Testacei.ms, with most part of tlie head, two vittse on thorax, and three apical segments of abdomen black; wings black, with a broad yellowish fascia in middle. Length 0.26. Br. wings 0.60 inch. $ . Testaceous ; antenn;c as long as thorax, compressed, widest at base, curved, setaceous, ciliate, the two basal joints pale. Head black, the whole face around and beneath antennse whitish ; nasus and labrum emarginate; a sharp ridge from edge of nasus dividing between auten- usd, and forming a deep basin, enclosing lower ocellus; two vittie on the side lobes of metathorax and the three apical segments of abdomen black. Legs testaceous; apical two-thirds of hinder tibia) piceous ; apical joints of all the tarsi blackish; spurs pale, all long and sharp; inner anterior tibial spur nearly as long as first tarsal joint. Wings with a broad, yellow hyaline band across the middle of both pair ; their basal fifth and about one-quarter of their apex blackish (includ- ing tip of stigma and all of third and fourth submarginal cells). Mexico. One Z . (H. deSaussure). The abdomen is not very stout. 13. Hylotoma semifuscus. Testaceous, with the head, three vittse on thorax, most of tergtim, and a spot on breast black; the wings yellow hyaline, their ajiical half black. Length 0.26. Br. wings 0.60 inch. % . Testaceous; antennae as long as thorax, slender, sickle-shaped, ciliate ; their two basal articles pale ; nasus emarginate and ridged as in H. j^roccra, the deep basin enclosing ocellus divided into two by a 70 EDWARD NORTON. cross ridge below. Head black ; about and beneath antennae pale; a vitta on each lobe of luesothorax, the four apical segments of abdomen, obsolete spots on all the tergum, and a spot on the breast black. Legs yellow-white ; coxae at base, femora, except at tip, apical two-thirds of the tibiae, and the four apical joints of tarsi black. Wings yellow hya- line; their apex from the middle of stigma across the wing, black ; se- cond recurrent nervure received near the second submarginal cross- nervure, Mexico. One S , (Coll. of H. deSaussure). Closely resembles II. Irpida, Klug. .3. Abdomen rufous. 14. H. pectoralis. Hylotomajiectoralis, Leach, Zool. Misc. Ill, 1817, 124, 10, 9. Lepel, Mon. Tenth. 47, 132, J. " Antennae black ; head, breast and legs blue-black; thorax coeci- neo-luteus; abdomen luteus; wings luteus-hyaliue. Length 4 lines. Br. wings 10 lines." North America. Not seen. 15. H. dulciaria. Hylotoma dulciaria, Say, Long's Second Exp. II, 1824, 314, 9 • "Pale rufous ; head, wings and feet violaceous black." Length 0.34 — 0.4S. Br. wings 0,74 — 1.04 inch. 9. Antennae bli^3k, with a violaceous tinge; nasus emarginate, short ; head, a spot on pectus and ovipositor sheaths blue-black, re- mainder of body testaceous or yellowish-red; legs steel-blue, spines same color, inner spines rather blunt. Wings violaceous, sub-hyaline, less obscure at apex, a large darker spot below stigma covering margi- nal and the upper half of all the submarginal cells. Under wings with but one middle cell. Maine, N. Hampshire, Connecticut, New York. N. W. Ter., (Say.) Illinois; Phiglish River, (Smithsonian Listitute). This is probably the same with //. jjcctoi-alia, Leach, from which it diifers only in the color of the wings and the black ovipositor sheaths, which Say calls the 'Hail black." 16. H. miniata. Hylotoma mininfn, Klug. Berl. Mag. vi, 1814, 298, 22, %; Jahrbuch., 231, 22. Hylotoma scutcllata, Lepel., Mon. Tenth. 47, 135. (Patria ignota.) "Coccineus ; head, three spots on the thorax and the legs black. Length 3i lines. Br. wings 7 lines. % . The color of the body is a verraillion or cinnabar red. The head and antennae are black; mandibles brown, with black teeth; a black spot on the thorax, extending over the middle and side lobes; a larger AMERICAN IIYMENOPTERA. 71 black spot on the breast. Abdomen entirely red ; feet black ; wings blackish ; upper pair at the end pale and transpai'ent, the nerves and stigma black. It conforms in size with II. cseridascens (of Europe)." North America. Not seen. The ff. scufellata of Lepel. is thought by Klug to be identical with this. It seems to approach closely to //. humeralis. C. Head rufovs. a. Thorax partly black. 1. Abdomen 2Tartly black. 17. H. lepida. Ili/lotoma Ujiida. Klug, Jahrbuch., 1834, 2.''.9, 53, %. Testaceous ; spots on the thorax, a2)ex of abdomen and the tarsi black ; wings yellow hyaline, at apex fuscous. S . Antennae black; the two basal joints and the head pale yellow; a long, black spot on each side of the scutel ; the middle of the breast, the four last segments of the abdomen, the spines on tibias and the tarsi black ; wings as far as the middle pale yellow with yellow nerves ; toward the tip blackish, with black nerves; stigma in the middle black. Mexico. One male. This only differs from No. 13, H. semlfmcus^ in the color of the head and the number of vitta3 on the thorax. 2. Abdomen rufous. 18. H. coccinea. Hyhtoma coccinea, Fab., Svst. Piez. 1S07, 24, 11. "Coccineus, with the antennae exarticulate; antennae and legs black; wings cyaneus. Form and size of//, enodis, (of I^urope). Antennfe thickened with- out, black. Head coccineus. Thorax coccineus, with the back black. Abdomen coccineus, immaculate. Wing obscure cyaneus, at the apex hyaline. Legs black." Carolina. Not seen. 19. H. rubra. Ilijlotoma rubra, Klug, Berl. Mag. vi, 1814. 299, 21, 9; Jahrbucher, 231, 21. "9- Coccineus; a dorsal thoracic sjiot, the antennae and feet black. Length 4J lines. Br. 9 lines. The ground color of the body is cinnabar red; mandibles yellow-red, with black teeth ; on the thorax a black spot covers most of the middle lobe and summits of the two side lobes ; tegulfe black ; the breast is without spots, the abdomen wholly red, the legs black, the wings brown running into blackish, with darker nerves and stigma." New York. One female. Not seen. 72 EDWARD NORTON. A.s Kluf^ remarks, this (•(liiicidcs witli /////. ('orciricd, except, that the w lii«;s of this are nut "obscure cyaiieus, at the apex hyaline." ii. Tli(>rii\ and mIxIdiikmi rufous or yellow. 20. H. rubiginosa. Tenihrvdo nibir/inosa, V. de Bcanv., Ins. Afr. et Am. ISOo, i(ripe.ani<, M irise, l^j'ttas and clcr/ioift) ; eyes lateral, oblouii-ovate ; ocelli placed in a triatiji;le on the vertex ; face variable in length and breadth ; clypeus variable in shape, the an- terior margin emarginate, rounded or truncate; antennae convolute in the females, straight, or but slightly bent, and sometimes crenulate (as Figure 1. in Fig. 1) in the males, the length variable in ^i:*=^'^^^-^~^^'^^^^~^'~^^ different species, inserted in the middle of the anterior part of the face, sometimes in broad, rather deep fossae, (spe- cies Nos. 23, 50, 51 and 52). Thorax oblong, more or less gibbous in front, and more or less corn- Figure 2. pressed at the sides ; prothoras generally broader «• ^- ^- than long, sometimes oblong-sub(|uadrate, (as in Fig. 2 c = piirpuripentti.s, Mun'se, Icjjdtus and ele- gans), the posterior margin either arcuate (as in yy yj^ ff I , Fig. 2 Z*), or more or less angular, (as in Fig. 2 a); metathorax generally smooth and rounded above, sometimes, but rarely, rugose, the apex truncate or obtuse. Wings : the anterior pair with one marginal and three or four sub- marginal cells, the first submarginal generally as long as the two fol- lowing together, the second and third receiving each a recurrent ner- vure ; the marginal cell varies in shape in different species, sometimes long, and regularly lanceolate, sometimes short, broad, and nearly tri- angular; the second and third submarginals vary much in shape, sometimes in different individuals of the same species, the third is es- pecially variable, being sometimes quadrate, sometimes triangular and sometimes petiolated ; the basal series of transverse uervures are some- times widely dislocated; in some species of the subgenera Priocnemis and A(/enia there are four distinct submarginal cells, the cubital ner- vure extending entirely and clearly to the apical margin of the wing. Legs variable in length and strength, the posterior pair the longest; in the subgenus PompUus all the legs are more or less spinose, and 86 E. T. CRESSOX. the anterior tarsi of tlie females more or less ciliated with spines; in the subgenus J^riocncmis the intermediate and posterior tibiae are ser- rated exteriorly, and the anterior tarsi are simple; \fhi\e m Agenin all the legs are simple; tarsal claws sometimes toothed beneath near the base, sometimes cleft. Abdomen exceedingly variable in form, being generally ovate or ob- long-ovate in the females, and elongate and sub-depressed in the males; in some species the form is long, narrow, and more or less cylindrical, sometimes sub-clavate, sometimes ovate and depressed above, and vary- ing from sessile to petiolate. The species of this genus are numerous, and are most of them easily separated; but in the black species of the subgenus Pnmpllus there seems to be a great similarity, and it is difficult to separate them, un- less the specific characters are well marked. Subgenus POMPILUS. This subgenus is characterized by the anterior tarsi of the females being more or less ciliated with spines, and by the intermediate and posterior tibiji3 being more or less spinose, without being serrated exte- riorly as in the next subgenus. The shape of the posterior margin of Figure .3. the prothorax seems to be a good specific distinctive cha- racter, as is also the shape of the anterior margin of the 'clypeus, which, however, generally differs in the male and female of the same spe- cies. In some species the form of the cells of the wings is very constant, while in others it is exceedingly vari- able ; the same may be said of the armature of the legs. The accompanying outline fi- gure is given to illustrate some of the characters of the species belonging to this .subgenus. Spe- cies Nos. 23, 50, 51 and 52, because of the different structure of the head, prothorax and front legs, do not, strictly speaking, belong to this subgenus, and may belong to Farapompilus Smith, (=i¥- tc.ryx St. Farg.), but until the characters of that genus are better de- fined, they arc, provisionally, included under this head. AMERICAN HYMENOPTERA, 87 A. Bodrj black, blue or purple. (From the United States.) 1. Pompilus philadelphicus. Pompihis philadelphicus, St. Farg., Hyin. iii, p. 421^. Female. — Large, robust, velvety black, with a deep blue, violet or purple reflection; anterior margin of the clypeus obtusely emarginate in the middle; posterior margin of the prothorax angular ; uietathorax smooth and rounded, slightly flattened posteriorly, with a more or less distinctly impressed, longitudinal, medial line ; legs with numerous short spines, more abundant on the tarsi, the anterior tarsi ciliated with, short spines, the posterior tarsi sparsely spinose ; wings deep violace- ous-black, sometimes fuscous, with a beautiful violet or purple reflec- tion ; marginal cell lanceolate, long, the apex oblique, acute ; second submaro;inal cell loD";er than the third, which is much narrowed to- wards the marginal ; abdomen obiong-ovate, convex, apex pilose. Length 9 — 11 lines. Male. — Resembles the female in color, bat smaller, the form nar- rower, the clypeus not emarginate, the marginal cell broader and shorter, the second* submarginal cell shorter, and the legs much less spinose. Hah. — Delaware, (Coll. Am. Ent. Soc); Connecticut, Louisiana, (Coll. Mr. E. Norton). Thirteen 9 1 two S specimens. Grenerally larger than sethiops, from which it diff"ers by the uniform bluish or purple reflection of the body, and by the angular posterior margin of the ^irothorax. Mr. Smith (Brit. Aim Cat. Hijm. iii, p. 160) has erroneously placed this species as synonymous with F. nchnlosus Dahlb., which is a very different insect, belonging to the sub-genus Friocnemis. 2. Pompilus aethiops. Pompilu.y its beautiful violet color, narrower form and shorter antennae. TRANS. AMER. ENT. SOC. (12) JUNE, 1867. 90 E. T. ORESSON. 9. Fompilus hyacinthinus, n. sp. Female. — Deep blue, sericeous, with a purplish shade in certain lights ; face short, the orbits and clypeus with a silvery-grey pubes- cence ; anterior margin of the clypeus truncate ; antennae short, black ; prothorax prominent, its posterior margin arcuate ; metathorax short, very abrupt and truncate behind; legs same color as the body, except the tarsi, which are black, the tibise and tarsi thickly spinose, the an- terior tarsi strongly ciliated; wings dark fuscous, with a strong viola- ceous reflection, the apex rather broadly margined with blackish ; mar- ginal cell sublanceolate, broad and rather short, second submarginal (|uadrate, the third longer than the second and much narrowed towards the marginal; posterior wings hyaline, fuscous at tip; abdomen ovate, convex, nearly sessile. Length 5 lines. Ilab. — Connecticut, (Coll. Mr. E. Norton.) One 9 specimen. Resembles ingenuus, but is much smaller, more blue in color, and the legs more strongly spinose. 10. Fompilus l)revicornis, n. sp. Male. — Narrow, subcylindrical, black, with a beautiful purple re- flection ; the face, sides of the scutellum, and the apical half of the metathorax, clothed with a fine, dense silvery pubescence; apical mar- gin of the clypeus truncate ; antennae opaque black, stout, not as long- as the head and thorax ; posterior margin of the prothorax arcuate ; metathorax with a deeply impressed line down the middle; legs seri- ceous, the tibiae and tarsi with numerous, rather stout spines; wings fusco-hyaline, with a purplish reflection, hyaline or subhyaline at base and darker on the apical margins; marginal cell elongate, lanceolate, oblique at tip, third submarginal cell subtriangular, being much nar- rowed towards the marginal ; abdomen elongate, narrow, subcylindri- cal, convex, immaculate, the purple reflection brilliant. Length 5 — 6 lines. Hah. — Pennsylvania, (Coll. Am. Ent. Soc.) Five % specimens. This pretty species is recognized by the narrow form, by the short antennae, by the conspicuous purple color, and by the silvery ornamentation of the thorax, which is very beautiful. 11. Fompilus atramentarius. Pompilus atramentariun, Dalilb., Ilym. Eur. i, p. 48, % . ''Body black, opaque, with a violaceo-sericeous pubescence; wings black ; tibiae and tarsi sparsely spinose, anterior tarsi ciliated. Length ?>l lin. Mens. Suec." Hab. — " North America." Not identified. AMERICAN HYMENOPTERA. 91 12. Pompilus subviolaeeus, n. sp. Female. — Small, black, with a rather strong purplish or violaceous reflection over the entire body; anterior margin of the clypeus trun- cate ; antennae short, not as long as the head and thorax ; mandibles brownish ; posterior margin of the prothorax arcuate ; metathorax smooth, rounded, with a slightly impressed line down the middle, ab- ruptly truncate behind; legs sparsely but strongly spinose; anterior wings fusco-hyaline, darker at tips, with a purplish reflection, margi- nal cell short, subtriangular, second and third submarginal cells small, the former subquadrate, the latter triangular ; posterior wings hyaline, dusky at tips ; abdomen ovate, convex, immaculate, the purple reflec- tion conspicuous; tip acute. Length Sg — 4^ lires. Hah. — Delaware, Illinois, (Coll. Am. Ent. Soc.) ; New York, (Coll. Mr. E. Norton.) Five 9 specimens. Closely allied to parvus, of which it may be only a variety ; but the marginal and submarginal cells are difi'erently shaped. 1.'). Pompilus parvus. Pompilus parvus, Cresson, Proc. Ent. Soc. Phil, iv, p. 453, 9- Hah. — Colorado Territory, (Coll. Am. Ent. Soc.) One 9 specimen. Length 3 lines. 14. Pompilus humilis, n. sp. Female. — Small, black, somewhat shining ; head wider than usual, the face clothed with a cinereous pubescence ; anterior margin of the clypeus broadly rounded ; antennae longer than the head and thorax together ; thorax slightly pruinose ; posterior margin of the prothorax subarcuate ; metathorax smooth and rounded, the apex silvery on each side ; wings hyaline, with a double fuliginous band at tip; second sub- marginal cell large and subquadrate, the third much smaller and trian- gular, being much narrowed towards the marginal ; posterior wings hyaline, dusky at tips ; legs black, slightly pruinose, the posterior ti- biae with a white spot above near the base; anterior tarsi strongly cili- ated, the intermediate and posterior tibiae sparsely spinose ; abdomen rather short, ovate, convex, shining black, immaculate, apex slightly compressed. Length 3-2 lines. iTaJ.— New. York, (Coll. Am. Ent. Soc.) One $ specimen. Recognized at once by the bifasciate apex of the wings and the white spot on the posterior tibiae. 92 E. T. CRESSON. 15. Pompilus cylindricus. Male. — Small, cylindrical, deep black; head, thorax and le<2js more or less silvery-sericeous, especially bright on the face and metathorax; anterior margin of the clypeus subtruncate or subarcuate; posterior Figure 4. margin of the prothorax subangular ; metatho- rax smooth and rounded, sometimes with a faint- ly impressed central line; legs sparsely spinose ; wings narrow, hyaline, the apex broadly mar- gined with fuscous, marginal cell short, subtriangular, the third sub- marginal cell petiolated (see Fig. 4) ; abdomen subsessile, subdepressed, cylindrical, immaculate, sometimes faintly sericeous. Length 3 2 — 5 2 lines. Hah. — Pennsylvania, Illinois, Dakota Territory, Texas, (Coll. Am. Ent. Soc); Virginia, (Coll. Mr. E. Norton.) Thirteen % specimens. This is one of our smallest species, easily recognized by the narrow, cylindrical form of the body, and by the petiolated third submarginal cell of the anterior wings. 10. Pompilus arctus. Po»i2}i/us arctus, Cresson, Proc. Ent. Soc. Phil, iv, p. 453, % . Hah. — Colorado Territory, (Coll. Am. Ent. Soc.) One % specimen. Resembles cylindricus very much, but is distin- Figure 5. guished by the longer marginal cell, and by the |Subquadrate third submarginal cell, which is fully a third larger than the second (see Fig. 5). This species belongs to the subgenus Pompilus., and not to Ar/enia, as I stated in the original description. 17. Pompilus virginiensis, n. sp. Male. — Long and slender, black, varied with a more or less brilliant silvery pile, especially brilliant on the face, thorax, coxae and base of the abdomen above ; anterior margin of the clypeus subtruncate or slightly arcuate ; face, clypeus and mandibles silvery ; posterior mar- gin of the prothorax angular; metathorax smooth and rounded, densely silvery at the apex ; legs sparsely spinose ; wings hyaline, iridescent, apical margin fuscous, marginal cell long and lanceolate, as usual, the third submarginal cell much narrowed towards the marginal ; abdomen elongate, subcylindrical, narrowed at base; the first, second and base of the third segments covered with a fine silvery-sericeous pile, more obvious in certain lights; sometimes the second, third and fourth seg- ments have a silvery band at base. Ijcngth 3 — 5 lines. y/a^.— West Virginia, (Coll. Am. Ent. Soc. and Mr. E. Norton.) AMERICAN HYMENOPTERA. 93 Eleven % specimens. Closely allied to ci/lindricus, but is easily distinguished by the beautiful silvery reflection of the body, by the diflerent form of the marginal and third subraarginal cells of the ante- rior wino;s and by the abdomen being sensibly narrowed at base and not so cylindrical as in that species. IS. Pompilus funereus. Anop/ius funereus, St. Farg., Hym, iii, p. 449, %.. 7/^6.— " Philadelphia." Not identified. This species seems to approach vinjinu'iiiiis, but the wings are de- scribed as being uniformly black, with a violaceous reflection. Size not given. 19. Pompilus argenteus, n. sp. 31ale. — Black, tinged with blue or purple, brilliantly varied with sil- very pile, which is especially bright on the face and metathorax ; ante- tcrior margin of the clypeus truncate ; prothorax prominently produced on each side beneath the anterior wings, the posterior margin arcuate; metathorax with a deeply impressed line down the middle ; legs strongly spinose ; wings hyaline, iridescent, margined with fuscous at tip, the marginal cell shorter than usual and somewhat triangular, the third submarginal cell triangular or subtriangular ; abdomen cylindri- cal, the three basal segments covered above with a dense silvery pile, very brilliant in certain lights. Length S-l — il lines. JTab. — West Virginia, (Coll. Am. Ent. Soc. and Mr. E. Norton.) Two % specimens. This beautiful species is shaped much like a/- Ihuhicus, but is at once distinguished from it by the purplish tint, by the brilliant silvery pile, by the shorter antenna), by the arcuated pos- terior margin of the prothorax, and by the strongly spinose legs; these last three characters also separate it from virginiensis. 20. Pompilus calipterus. Pompilus calipterus, Say, Bost. Jour. Nat. Hist, i, p. 302. "Black, polished, slightly pruinose; antennae and feet honey-yellow; wings hyaline, bifasciate with blackish; Length three-tenths of an inch." Jfah. — "Indiana." Not seen. Probably belongs to the subgenus Agcnia. (From Cuba, Mexico and Panama.) 21. Pompilus cubensis. Pompilus ancejis, Cresson, Proc. Ent. Soc. Phil, iv, p. 130, % , (uec Smith). Ilab. — Cuba, (Coll. Am, Ent. Soc.) One 9 ! two % specimens. The 9 varies much in size (8 — 11 lines long), and the color of the body is much more greenish than in the % ; 94 E. T. CRESSON. the anterior margin of the clypeus is deeply emarginate, the posterior margin of the prothorax is angular, and the wings are deep violaceous- black. This species resembles philaJelphicns very much, but is at once separated from that species by the strong greenish color of the body. 22. Pompilus fulgidus. Fomjnh'-sfu/ffidus, C'resson, Proc. Ent. Soc. Phil, iv, p. l."?!, 9 • ^at.— Cuba, (Coll. Am. Ent. Soc). One 9 specimen. Easily recognized by the brilliant blue and violet, polished abdomen. The anterior margin of the clypeus is subarcuate, and the posterior margin of the prothorax is angular. 23. Pompilus (?) purpuripennis. Pompil lis purpiu-ipennis, Cresson, Proc. Ent. Soc. Phil, iv, p. 130, 9- ifei.— Cuba, (Coll. Am. Ent. Soc). One 9 specimen. This magnificent species is recognized at once by the rough and curious sculpture of the metathorax. The head is much compressed, making the front very flat, and the antennae are in- serted in deep fossulets just above the clypeus, in which respects it ap- proaches the genus Paj-apompi'hts Smith (^=z Micropteri/x St. Farg.) ; the prothorax is longer than in the true Pompilus, and differently shaped, the anterior margin being rounded, and not suddenly depressed and strangulated ; the metathorax, however, is not longer than in the true Pompilm, neither are the wings any shorter, as they reach beyond the tip of the abdomen when closed. 24. Pompilus regalis. Pompilus regalis, Smith, Journal of Entomology, i, p. 396, 9 • "Purple-blue; clypeus, mandibles and antennas black; metathorax truncate, transversely grooved at the verge of the truncation, and with some longitudinal divergent striae at the base; wings ample, dark pur- ple, with brilliant shades of violet; abdomen slightly compressed. Length 10 lines." Hah. — " Mexico." Not seen. 25. Pompilus lepidus. Pompilus lepidus, Say, Bost. Jour. Nat. Hist, i, p. 303, % . '■'■Male. — Black, slightly sericeous; wings dark purplish; second and third cubital cellules a little narrowed at the radial cellule, particu- larly the latter, which is less than two-thirds the length of the second, in that part; basal series of transverse nervures not dislocated; meta- thorax with a very slight reflection of purplish, and without any im- pressed lines; tergum with a distinct purplish reflection; beneath AMERICAN HYMENOPTERA. 95 black ; ia a favorite light the thighs have a slight purplish reflection. Length two-fifths of an inch." Hah. — " Mexico." Not identified. 26. Fompilus anceps. Pompilus anceps, Smith, Trans. Ent. Soc. Lond. 3d ser. i, p. Sfi, 9 • "■Female. — Length 11 lines. Black; head and thorax with a beauti- ful changeable blue silky pile ; six apical joints of the antenna? orange- yellow 5 metathorax transversely striated; wings blackish-brown, with bright violet iridescence in certain lights, their extreme apex milky- white ; tibise and tarsi thickly set with short stout spines; abdomen with a splendid blue iridescence." Hah. — " Panama." Not seen. B. Body Mack, handed with cinereous. 27. Pompilus unicus, n. sji. Male. — Small, black, most of the body clothed with a dense, ap- pressed, cinereous pubescence, the portions not covered with this pu- bescence are black, with a slight opaline reflection ; antennae short, stout and opaque black; anterior margin of the clypeus truncate; tho- rax unusually gibbous ; prothorax with a transverse, slightly inter- rupted, black band near the posterior margin, which latter is arcuate; mesothorax with two large, black, subquadrate spots on the disk, nearly confluent ; metathorax abrupt on the sides and behind, black, the api- cal half silvery-cinereous ; wings hyaline, the apical third fuliginous, with a faint, transverse, subhyaline streak just beyond the tip of the third submargiual cell ; the basal series of transverse nervures is nar- rowly margined with fuliginous ; marginal cell broad sublanceolate, se- cond submarginal subquadrate, the third smaller and much narrowed towards the marginal; legs rather short and stout, the femora within, extreme tips of tibiae, and the tarsi, except basal joint, black, the rest covered with a dense cinereous pile ; anterior legs short and stout, not spinose, the four posterior tibiae strongly spinose; abdomen short, ovate, convex, second segment very large, forming a shield, as it were, to cover the reiuaining segments when retracted, apex subcompressed ; shining black, first and second segments each with a broad band of dense cinereous pubescence, placed a little before the middle, remain- ing segments each with a large, transverse, cinereous spot on the apical middle, covering nearly the entire disk of the fourth and following segments; venter clothed with a fine, dense, cinereous pile. Length 3-i lines. //a6.— Cuba, (Coll. Dr. J. Gundlach, No. 532). 96 E. T. CRESSON. One S specimen. A beautiful little species, with handsomely orna- mented body and wings. C. Body black, marked or banded with ivhite or yelloio. 28. Pompilus biguttatus. Pompilus biguttatus, Fabr., Ent. Syst. Suppl. p. 249; Syst. Piez. p. 193. Say, Bost. Jour. Nat. Hist, i, p. 303. Fompilus o-)iotatus, Say, Bost. Jour. Nat. Hist, i, p. 304, (var). Female. — Black, sometimes covered with a grayish-sericeous pile ; head with narrow Avhite orbits, interrupted above, sometimes very in- distinct, or entirely wanting; anterior margin of the clypeus ronnded or subtruneate, reflexed ; posterior margin of the prothorax arcuate, sometimes margined with white, generally interrupted in the middle, or entirely wanting; in some specimens the tegulae have a white spot; sides of the scutellum and the metathorax more or less silvery ; legs more or less grey -sericeous, anterior tarsi strongly ciliated, tibiae and tarsi strongly spinose, the extreme tips of the anterior tibiae are some- times white, and their tarsi sometimes brownish; in one specimen with immaculate abdomen, the posterior tibiae have a white line at extreme base; tarsal claws cleft as in % ; wings vary from fuscous to hyaline, always more or le.ss blackish at tips, with the violaceous reflection more or less conspicuous, third submarginal cell shorter than the second, sometimes nearly quadrate, but generally narrowed towards the mar- ginal; abdomen elongate, convex, acuminate at tip; first segment sometimes clothed with an appressed silvery pile, immaculate; second segment with a transverse white spot on each side at base, sometimes reduced to a dot, or entirely wanting; third segment also with a trans- verse white spot on each side at base, sometimes confluent and forming an uninterrupted band, sometimes these spots are reduced to dots, or are entirely wanting; fourth segment with a transvei'se, white line ou each side at base, sometimes almost confluent, and sometimes obsolete or entirely wanting; sixth segment has sometimes a white spot on the disk ; venter immaculate. Length 4 — 7 lines. Male. — Much smaller and narrower than the $ , much more silvery, especially the face, prothorax and metathorax; the prothorax is gene- rally margined posteriorly with white, which is sometimes subobsolete or entirely wanting; the anterior tibise and tarsi are sometimes tinged with ferruginous, the former often tipped with white; the posterior ti- biae have generally a white line at base above, and the tibial spurs are sometimes entirely white ; the wings are more hyaline, iridescent, the tips are always margined with fuscous; the abdomen is flattened, the second segment has generally a white dot on each side, while the third AMERICAN HYMENOPTERA. 97 segment has a whitish band, sometimes broad and entire, but generally more or less interrupted in the middle, and sometimes reduced to a mere dot; the fourth, fifth and sixth segments are immaculate ; the seventh more or less silvery, sometimes whitish. One specimen has the abdomen entirely black, except the silvery tip. Length 3 — 4> lines. Hah. — Connecticut, New York, New Jersey, Pennsylvania, Dela- ware, Illinois, Canada, (Coll. Am. Ent. Soc. and Mr. E. Norton). Thirty 9 , fourteen % specimens. The markings of this species are extremely variable, and I can find no constant character by which to separate 5-notafus from higuttatus. Of the 9 » I have before me two specimens with the body entirely immaculate, except a faint, whitish orbital line ; fifteen specimens have a transverse white spot, sometimes very faint, on each side of the third segment — these are the higuttatus of Fabr. — and in one of this last variety, the second segment has a white dot on one side only, and another specimen has a white spot on the sixth segment; 'one specimen has two dots on the second segment, two large ovate spots on the third, and a spot on the sixth, while another has the addition of a very small, faint, whitish line on each side of the fourth segment; and nine specimens have a white spot, va- riable in size, on each side of the second, third and fourth segments, those on the third sometimes confluent, and a spot on the sixth seg- ment — these are the 5-notafus of Say. 29. Pompilus flavopictus. PompUus flampictus, Smith, Joiinml of Entomology, i, p. 396, 9- "Length 5 lines. Black; face yellow, with two longitudinal black stripes running from ocelli to insertion of antennae, and a transverse waved black line at base of clypeus; a broad, yellow stripe behind the eyes ; scape of antennae yellow, flagellum ferruginous, base and apex black ; mandibles yellow, tips black ; posterior margin of prothorax, two longitudinal stripes on mesothorax above, ovate spot on each side of scutellum, post-scutellum, large macula on each side of metathorax and its posterior margin, yellow; sides of thorax with several large yellow spots beneath the wings; legs yellow, with longitudinal black stripes on femora and tibiae ; wings subhyaline, anterior margin of su- perior pair fuscous ; base of abdomen yellow, and the apical margins of the segments with yellow bands. Closely resembles species of the ge- nus Ichneumon^ Hah. — " Mexico." Not seen. TRANS. AMER. ENT. SOC. (13) JUNE, 1867. 08 E. T. CRESSON. D. Body black, abdomen marked or banded with red. 30. Pompilus tropicus. Sphe.v tropicus, Linn., Syst. Nat. i, 9-45. Fabr., Ent. Syst. ii, 250. Pompilus tropicus, Fabr., Ent. Syst. Supp. 250 ; Syst. Piez. 194. St. Farg., et Serv. Ency. Meth. x, 181. Dahlb., Hym. Eur. i, 62. St. Farg., Hym. iii, 434. % 9 • — Black ; second abdominal segment with a more or less broad, orange-yellow band, generally emarginate behind, and sometimes inter- rupted down the middle; antennae shorter than the head and thorax: anterior margin of the clypeus subtruncate ; posterior margin of the prothorax angular ; wings blackish, subviolaceous, third submargiual cell triangular. Length 6 — 8o lines. Hah. — Pennsylvania, Delaware, Georgia, Illinois, (Coll. Am. Ent. 8oc. and Mr. E. Norton). Seven 9 , four % specimens. 31. Fompilas atrox. Pompilus atrox, Dahlb., Hym. Eur. i, p. fi.3. % 9 • Black; second abdominal segment with a more or less broad, orange-yellow band, as in trojyicus ; antennae longer than the head and thorax ; anterior margin of the clypeus deeply emarginate in 9 , f^lightly so in % ; posterior margin of the prothorax arcuate ; wings blackish, subviolaceous, third submarginal cell subquadrate. Length 7 — 11 J lines. Ifah. — Pennsylvania, Delaware, Maryland, Virginia, Illinois. (Coll. Am. Ent. Soc.) ; Connecticut, Louisiana, (Coll. Mr. E. Norton). Twelve 9 , six S specimens. This species, though larger than tropi- cus, resembles it closely, but is readily distinguished by the much longer antennae, by the anterior margin of the clypeus being notched in the middle, by the posterior margin of the prothorax being arcuate, and by the shape of the second submarginal cell, which is subquadrate, while that of tropicus is triangular. 32. Pompilus marginatus. Pompilus marrjinntus, Say, Long's Second Expcd. ii, p. 333. (1824.) Pompilus {Miscus) petiolatus, Say, Bost. Jour. Nat. Hist, i, p. 305. (1835.) Female. — Black; first and second abdominal segments above yellow or orange-yellow, more or less emarginate behind on the second seg- ment ; the first segment is entirely black in fourteen specimens, with a reddish spot or shade in twelve specimens, entirely yellowi.sh, or nearly so, in five specimens, and in one specimen the reddish or yellow- ish color is very obscure; anterior margin of the clypeus rounded or subtruncate ; posterior margin of the prothorax subangular; wings vary from subhyaline with a fuscous terminal margin (as described by Say AMERICAN HYMENOPTERA. 90 in his marginahis), to uniformly fuscous, and even to blackish-violace- ous ; the third submarginal cell is generally more or less petiolated ; and in some specimens triangular and not at all petiolated, ]^ength 3 — 6 lines. Male. — Narrow, cylindric ; head, thorax and legs covered with a dense silvery-sericeous pile ; legs sparsely spinose ; wings hyaline, iri- descent, with a broad, fuscous, apical margin ; abdomen narrow, sub- depressed, with a broad reddish baud on the second segment. Length 4 J lines. Hah. — Massachusetts, Connecticut, New York, New Jersey, Penn- sylvania, Delaware, Virginia, Illinois, Colorado and Dakota Territo- ries, (Coll. Am. Ent. Soc. and Mr. E. Norton). Thirty-eight 9 i one % , specimens. This is a common and a very variable species, both in size and coloration. Some specimens mimic small examples of trojncus so closely, that it is difficult to separate them. I]3. Pompilus americanus. Pompihis americanus, Beauv., Ins. Afr. et Amer. p. 117, jil. 3, fig. 6. Smith, Brit. Mus. Cat. Hyra. iii, p. 157. Pomjnlus trifasciatus, Beauv., Ins. Afr. et Amer. p. 118, pi. 3, fig. 6, (var.) Pompilus filebejus, Dahlb., Hym. Eur. i, p. 60. Female. — Black; second and third, and sometimes the first, seg- ments of the abdomen above with a reddish-yellow or orange-yellow band, broader on the second segment, more or less emarginate behind, and sometimes interrupted down the middle ; anterior margin of the clypeus truncate, or subtruncate; posterior margin of the prothorax angular : wings fuscous, or fusco-hyaline, sometimes with a darker api- cal margin; third submarginal cell triangular; legs thinly spinose. Length 5 2 — 71 lines. Male. — Resembles the females, but is narrower; the body has a slight purplish hue ; the ftice silvery ; the legs less spinose ; the abdo- men less convex, sericeous, the first segment with a slight reddish stain, the second and third segments with an orange-yellow band, broader and more distinct on the second segment. Length 6 lines. Bab. — Pennsylvania, Delaware, Maryland, Illinois, Florida, Louisi- ana, (Coll. Am. Ent. Soc. and Mr. E. Norton). Eighteen 9 , one % , specimens. This is a tolerably common spe- cies, and the specimens before me vary but little in size and color. 34. Pompilus ephippiger. Pompilus ephippiger, Smith, Brit. Mus. Cat. Hym. iii, p. 158, 9 . ^^ Female. Length 6 — 82 lines. — Black; head thinly sprinkled with 100 E. T. CRESSON. black pubescence ; anterior margin of clypeus emarginatc ; posterior margin of prothorax arcuate ; metathorax rounded, smooth, and having a fine sericeous pile of a purple tint; wings dark fuscous, apical mar- gins with a darker border ; tibiae and tarsi spiuose ; second and third segments of abdomen with a broad yellow fascia, the posterior margin of which is emarginate." Hah. — " North America." Not seen. Closely allied to amfriramis, but differs by the emarginate clypeus and by the arcuate posterior margin of the prothorax. ".j. Fompilus semirufus, n. sp. Female. — Black ; head, thorax and legs covered with a rather dense cinereous pile; anterior margin of the clypeus truncate; mandibles dull reddish, black at base and tips; antennae slender, moderately long; posterior margin of the prothorax angular ; metathorax smooth and rounded, abrupt behind, with a slightly impressed line down the mid- dle ; legs rather long, tibiae and tarsi strongly spinose ; wings dark fus- cous, darker at tips, subviolaceous, third submarginal cell triangular; abdomen ovate, convex, polished, yellowish-ferruginous, the three api- cal segments black. Length 41 lines. 5a6.— Georgia, (Coll. Am. Ent. Soc). One $ specimen. 36. Fompilus divisus, n. sp. Female. — Black, shining ; head, antennae, thorax and legs covered with a rather dense cinereous pile; face short; anterior margin of the clypeus subtruncate ; mandibles rufous, black at tips; antennce slen- der, scarcely as long as the head and thorax ; posterior margin of the prothorax arcuate; metathorax rounded, smooth and shining, with a deeply impressed line on the basal middle; legs thickly spinose. ante- rior tarsi strongly ciliated; wings fuscous, subviolaceous, darker on the apical margin, and paler at base, third submarginal cell triangular ; abdomen elongate, subovate, convex, polished, pilose towards the apex, the two basal segments above rufo-ferrugiuous, the remainder black, the apical segment large, convex and pilose; beneath, the three basal segments rufo-ferruginous. ]jength 6 lines. Bab. — Georgia, (Coll. Am. Ent. Soc.) One $ specimen. Allied to semirufus, but differs by being more elongate, by the shape of the posterior margin of the prothorax, and by the coloration of the abdomen. AMERICAN HYMENOPTERA. 101 37. Pompilus bipartitus. Ponipilus bipartitus, St. Farg., Hym. iii, p. 439, 5' Hah.—'' Philadelphia." Not identified. This is described as being black, with the abdomen f /j;' lines; expanse 11 lines. Hah. — Pennsylvania, (Coll. Am. Ent. 8oc.) One 9 specimen. This beautiful and rare species may belong to the genus Parapnmplhis Smith, along with purpuripentiis, Icrjiatus and ele- (/(ois, all having the head and prothorax fonued alike. .51. Pompilus ? legatus, n. sp. Feimde. — Rufo-ferruginous ; shape and structure same as in the preceding' species ; head uniformly dark rufous, shining; antennse short, scarcely longer than the head and prothorax, black, the two ba- sal joints rufous; thorax^ uniformly rufo-ferruginous; metathorax sil- very-sericeous OQ the sides, the rugosity on the posterior truncation more strongly marked than in the preceding species; legs black, the coxge at base, the tibiae, except base and apex, and the four posterior tibia; beneath, rufous; tibial spurs pale yellowish; anterior legs short and stout, without spines; the four posterior tibiae and tarsi with a few short spines; wings shaped and colored as in the preceding species, except that they are shorter and the apical fuscous band is not so broad, leaving the subhyaline space between it and the middle cloud larger ; abdomen opaque, with the two basal segments rufo-ferruginous, the apex of the second fuscous, remaining segments black, third with a narrow, subinterrupted, luteous band at base, and a small spot of the same color on each extreme side of the fourth segment; venter ferrugi- nous, apical half fuscous. Ijcngth 5 lines; expanse of wings 7 lines. Ihth. — Cieorgia, (Coll. Am. Ent. Soc.) One 9 specimen. Resembles Marise very closely, but is smaller in size, and the coloration of the abdomen is very different, the apical seg- ment being not at all silvei-y as in Marise. h2. Pompilus ? elegans. PoMjiilus elegans, Cressoii, Proc. Ent. Soc. Phil, iv, p. 120, 9 • Ftmalc. — Ferruginous; head wider than the thorax and flat, pro- thorax oblong-subquadrate, much larger than usual, rounded anteriorly; head, antennae, legs and broad band near base of abdomen, blackish; metathorax, legs and base of apex of abdomen, densely covered with cinereous pile; wings whitish-hyaline, with a very large fuliginous spot near the tip, as well as a small spot at base and middle. Length 5 lines ; expanse of wings 8 line.s. //«/>.— Cuba, (Coll. Dr. J. Gundlach). One 9 i^pecimen. Closely allied to Marise and lajatus. 110 E. T. CRESSON. 53. Fompilus compressiventris. Pompilus compressiventris, Cresson, Proc. Ent. Soc. Phil, iv, p. 127, 9- Female. — Long and narrow, ferruginous; antennae, sides of meso- tlioras, tlie whole of the thorax heneath and the legs, black; wings fuscous; abdomen elongate, compressed beneath and at tip. Length 7 lines. Hah. — Cuba, (Coll. Dr. J. Gundlach). One 9 specimen. 54. Fompilus marcidus. Pompilus marcidus, Smith, Journal of Entomology, i, p. 395, 9- ''■Fenidlc. Length 8 lines. — Fusco-ferruginous, covered with a fine, changeable, silky pile, that on the face is silvery ; clypeus rounded and margined anteriorly ; seven apical joints of antennae black ; cheeks with a thin cinereous pubescence; legs of a clearer red than the tho- rax ; tibiae and tarsi armed with stout spines, the extreme apex of tar- sal joints of intermediate and posterior legs black; wings dark reddish- brown, gradually blending into a pale or subhyaline margin posteri- orly ; abdomen palest at base, with its extreme base black, apical mar- gins of the segments very narrowly black or fuscous." Hah. — "Orizaba, Mexico." Not seen, G. Body entirely reddish. 55. Pompilus uniformis. Pompilus uniformis, Cresson, Proc. Ent. Soc. Phil, iv, p. 125, % 9- % 9 . — Fusco-ferruginous, with a purplish tinge, antennae darker at tips; metathorax abrupt and depressed behind; wings subhyaline; legs spinose. Length 4:> — 7 lines. ^«6.— Cuba, (Coll. Am. Ent. Soc.) One 9 , three % specimens. Easily recognized by the color being entirely and uniformly purplish-ferruginous. 56. Pompilus erythrus. Pompilus erythrus, Smith, Brit. Mus. Cat. Hym. iii, p. 156, 9- '■'■Female. Length 10 lines. — Brick-red; apical joints of antennte and tarsi fuscous; clypeus emarginate, rounded at the sides; wings dark fuscous and iridescent; tibiae with a few sharp spines, tarsi slightly spinose, anterior pair ciliated ; abdomen smooth, shining and impunctate ; pectus with black stains ; rest of body of a brighter red than above ; first recurrent ncrvure received by the second submargi- nal cell near its apex." Hah. — "Jamaica." Not seen. 57. Pompilus torridus. Pompilus torridus, Smitli, Journal of Entomology, i, p. 396, 9- ^'Female. Length 62 lines. — Ferruginous, inclining to a tile-colored AMERICAN HYMENOPTERA. Ill red; antennae red at base, becoming black towards their apex ; face with a slight silky cinereous pile; nietathorax, coxae and femora with a slight cinereous pile; wings fusco-hyaline, with a faint violet irides- cence; apical joints of tarsi dusky; abdomen smooth and shining." Hah. — "Mexico." Not seen. Subgenus PRIOCNEMIS. This subgenus is characterized by the intermediate and posterior ti- biae being serrated ( 9 Fig. 7, &.) or serrulated ( S ), and by the ante- Figure 7. rior legs not being ciliated with spines *• '*• (Fig. 7, f). The neuration of the anterior '^ i _^^,-c^--— T--^ wings is variable in different species, but /| ^^^^^^^^y^j^J generally quite constant in individuals of [l ^"~- — Hi— =="— — ^ the same species ; the marginal cell is gene- ^%, „ rally Ion";, narrow and more or less acute % y ^"^"^^^ at tip, but in several species the tip is more ^ \ or less obtuse or rounded (as in Fig. 7, a); the shape of the submarginal cells is vari- able in different species, and appear to be a good specific distinctive character; the basal series of transverse nervures is widely dislocated in all the species known to me, except in alienafAis and pulchellus. The specific characters are well marked, and therefore the species are easily separated. (From the United States). 58. Pompilus (Priocnemis) magnus, n. sp. Feviale. — Lai'ge, robust, deep black, head and thorax opaque, abdo- men subopaque; face and cheeks clothed with rather long pubescence; anterior margin of the clypeus arcuate, labrum and palpi fuscous ; an- tennae about as long as the head and thorax, orange-yellow, the two basal joints black ; the breast and anterior coxae clothed with long black pubescence; posterior margin of the prothorax angular; meta- thorax smooth and rounded, without any impressed line ; wings black, violaceous; marginal cell long and narrow, the tip oblique; second submarginal obliquely-quadrate, narrower than the third which is nar- rowed towards the marginal, the second recurrent nervure much bent outwardly about the middle ; legs stout, black, somewhat shining, tarsi brownish at tips; abdomen ovate, convex, apical segment covered with brownish hairs. Length 13 lines. Hah. — Georgia, (Coll. Am. Ent. 80c.) One 9 specimen. This is the largest and one of the finest species of Priocnemis known to me. 112 E. T. CRESSON. 59. Pompilus (Priocneniis) fulvicornis, n. .sp. Female. — Dull black, subopaque, sometimes with a bluish tint, iui- maculate ; antcuna? orauge-yellow, two basal joints black or fuscous; anterior margin of the elypeus arcuate, the face sometimes brown-seri- ceous; posterior margin of the prothorax angular; metathorax opaque, with a well impressed, longitudinal, dorsal line; wings uniformly fus- cous or dark fuscous, more or less violaceous, marginal and submargi- nal cells as in magnus, the second recurrent nervure is rounded out- wardly, but not suddenly bent; legs brown-black, tarsi brown; abdo- men ovate, convex, apical segment brownish pubescent. Length 8 — 9 lines. Male. — Very similar to the female, but the form is more slender and the tibiae are only slightly serrated. Length 6 — 8 lines. Hah. — Pennsylvania, Delaware, A^irginia, Louisiana, Texas^ (Coll. Am. Ent. Soc. and Mr. E. Norton). Nine 9 , five S specimens. Much smaller and less robust than maf/)i>i.s, and with paler wings. One 9 specimen from Virginia has the anterior orbits and the mandibles pale ferruginous. 60. Pompilus (Priocnemis) unifasciatus. Pompilufi wtifa.scint/'S, Say, Anii»r. Ent., 2)late 42. Pompilus pall idicprnis, Smith, Brit. Miis. Cat. Hym. iii, p. 160, 9- % 9 . — Black ; antennae, except the base, bright yellow ; anterior margin of the elypeus broadly but not deeply emarginate ; posterior margin of the prothorax angular ; wings dark fuscous, the anteritn" pair with a large, yellow, subapical spot. ]jength G — 10 lines. Ilah.—Coim., Del, 3Id., AVest Va., Ill,, La., (Coll. Am. Ent. Soc. and Mr. E. Norton). Twelve 9 ? ^(^^^^ '^ specimens, llecognized at once by the deep black color of the body, the yellow antennas and the large yellow spot at the tip of each anterior wing. 61. Pompilus (Priocnemis) maculipennis. Pompilus maculip>ennis, Smitli, Brit. Miis. Cat. Ilym. iii, p. 1,')9, 9- ^'■Female. Length 8 lines. — Black; the tips of the mandibles fer- ruginous ; the head and thorax covered with very short velvety pubes- cence; wings brown, with a purple iridescence, the anterior wings having a large, ovate, yellow macula a little beyond the middle, touch- ing their anterior margin ; the anterior and intermediate tibiae and tarsi slightly spinose, the ])Osterior tibiiio serrated exteriorly, the tarsi spinose. Abdomen obscurely sericeous, the apical margins of the seg- ments without pile, smooth and shining. . Ifah. — " North America." AMERICAN HYMENOPTERA. 113 This species is unknown to me. From the above description the an- tenna) are inferred to be hlac/i-, in which character only it seems to dif- fer from imi/asciatus Say. 62. Pompilus (Priocnemis) terminatus. Pompilus tenninaius, Say, Aiiier. Ent., plate 42; Crcsson, Proe. Ent. Soc. Phil, iv, p. 454. S 9- — I51ack, opaque; antennae black in five specimens, orange- yellow, except base, in three specimens; anterior margin of the cly- peus deeply concave; posterior margin of the prothorax subarcuate or slightly subangular; wings bright orange-yellow, the apical margin blackish, sometimes broadly so. Length 4 — 7 lines. Hah. — Colorado and Dakota Territories, (Coll. Am. Ent. Soc.) Five 9 , three S specimens. Easily recognized by the black body, and bright yellow wings, tipped with black. c:;. Pompilus (Priocnemis) nebulosus. Piiicnemis nebulosus, Dalilb., Hyin. Eur. i, p. 96, 9- Female. — Black, somewhat shining ; clypeus broadly mai'gined an- teriorly, with a broad, somewhat square, but not a very deep, emargi- nation in the middle; antennae longer than the head and thorax, fili- form, slender at tips; posterior margin of the prothorax arcuate, very slightly subangular; metathorax rounded; wings long, fuliginous, vio- laceous, darker at the apex, in the second submarginal cell, and alonti- the basal series of transverse nervures, base of anterior wings and the posterior wings entirely, paler; marginal cell lonu;, narrow, subacute at tip ; second submarginal longer than broad, pointed towards the base of the wing, and receiving the first recurrent nervure beyond the middle; third submarginal cell larger than the second, narrowed considerably towards the marginal and receiving the second recurrent nervure at about the middle ; basal series of transverse nervures widely dislocated ; legs black, the tibiae and tarsi with numerous short, palish hairs; tarsi brownish, abdomen short, ovate, convex, much narrowed at base, smooth, shining black ; apical segment densely clothed with brown hairs. Length 6 J lines. Jfab.—New York, (Coll. Am. Ent. Soc.) One 9 specimen. 64. Pompilus (Priocnemis) fortis, n. sp. Female. — liobust, black, shining, clothed with a very short, brown- ish, subsericeous pubescence, more obvious on the head, thorax be- neath and legs ; anterior margin of the clypeus subtruncate, margined and very slightly concave; the front with a finely impressed longitudi- TRANS. AMER. ENT. SOC. (15) JUNE, 1867. 114 E. T. CRESSOiV. iial line; antennre short and thick, browu-sericenus beneath; posterior margin of the prothorax arcuate; metathorax rounded above, subtrun- cate behind, finely and transver! (nee Van d. Limh). Pompiius alienatus, Smith, Brit. Mus. Cat. Ilyra. iii, p. 159. Female. — Black, clothed with a silvery-cinereous pile, most obvious on the face, metathorax and coxae ; apical margin of the clypeus smooth, polished and truncate; mandibles reddish in the middle; an- tennae long, slender, convolute, brownish ; posterior margin of the pro- thorax slightly subangvilar; metathorax smooth and rounded, rather abrupt behind, the sides bright silvery; wings hyaline, with four sub- marginal cells; the extreme tip, a large cloud covering most of the marginal cell, the whole of the second and third submarginal cells, and the tip of the third discoidal cell, fuscous; sometimes the basal series of transverse nervures, which is scarcely dislocated, is margined with fuscous; marginal cell long, lanceolate, acute at tip ; second submar- ginal cell obliquely quadrate, the third much narrowed towards the marginal, receiving the second recurrent nervure at about the middle; posterior wings hyaline, the tip slightly dusky ; legs black, the four anterior tibiae and tarsi more or less varied with rufo-testaceous ; the posterior femora and tibiae red, their tips generally black, their tarsi brownish; tibiae strongly serrated ; the coxae silvery; abdomen short- ovate, subconvex, subsessile, polished, red above and behcath, the three or four apical segments black. Length 3 — il lines. I/a/j. — Connecticut, New York, New Jersey, Pennsylvania, West Virginia, (('oil. Am. Ent. Soc. and Mr. E. Norton. j 118 E. T. CRESSON. Thirteen 9 specimens. This is a pretty and easily recognized spe- cies. The % has not been identified. 73. Pompilus (Priocnemis) scitulus, n. sp. Female. — Small, bright honey-yellow, polished; head large, black; anterior margin of the clypcus broadly rounded; mandibles brown ; an- tennae rather long and slender, blackish above, brown beneath ; thora.x; narrow, compressed at the sides ; posterior margin of the prothorax •angular; mesothorax stained with blackish, the region on each side of the scutellum and post-scutellum black ; metathorax smooth and round- ed, the stigmata black ; wings hyaline, iridescent, marked as in alienn- tits, the second submarginal cell is longer thaji in that species, while the third submarginal is not so much narrowed towards the marginal ; the basal series of transverse nervures is widely dislocated ; legs honey- yellow, tips of tibire and tarsi dusky ; tibife not strongly serrated; ab- domen ovate, subpetiolate, convex, polished, honey-yellow, the apical half of the third and the remaining segments entirely, black, tip pice- ous and hairy. Length 3 lines. //(//v.— Illinois, (Coll. Am. Ent. Soc.) One 9 specimen. This handsome little species is closely allied to alienatus, but is at once separated by the color of the body, except the head and apex of abdomen, being entirely honey-yellow. 74. Pompilus (Priocnemis) nothus, n. sp. Female. — Black, somewhat shining; anterior margin of the clypcus subarcuate ; mandibles rufo-piceous at tips ; antenuce brown-black ; posterior margin of the prothorax arcuate; metathorax oblong, round- ed above, with a well impressed line down the middle ; wings pale fus- co-hyaline, nearly hyaline at base, iridescent; marginal cell long, nar- row and acute at tip ; second submarginal pointed towards the base of the wing, the third subquadrate, broader than long, slightly narrowed towards the marginal, and receiving the second recurrent nervure be- fore the middle; basal series of transverse nervures widely dislocated; legs brown-black, tarsi paler, tibitc strongly serrated; abdomen short, ovate, convex, polished, dull ferruginous, apex brown. Length 4 lines. JIah. — Connecticut, (Coll. Mr. E. Norton.) One 9 specimen. 75. Pompilus (Priocnemis) nuperus, n. sp. Female. — Head golden-ferruginous, with golden hairs, very long on the cheeks; clypeus large, its anterior margin truncate; mandibles blackish at tips; antennae long and slender, golden-ferruginous, the AMERICAN HYMENOPTERA. 119 aeveu apical joints black; prothorax ferruginous, the anterior margin sometimes blackish, the posterior margin subangular; mesothorax and scutellum ferruginous, sometimes stained with blackish ; metathorax rounded, black, golden-sericeous, one specimen has a large, rounded, ferruginous spot on each side, and the pleura a spot of the same color beneath the wings; wings long, uniformly fuliginous, with a strong purplish reflection; marginal cell long, narrow, acute at tip; second subuiarginal rather small, oblong-subquadrate, pointed towards the base of the wing, the third submarginal very large, nearly twice as long as wide, slightly narrowed towards the marginal and receiving the second recurrent nervure at about one-third from the base; basal series of transverse ncrvures widely dislocated ; legs golden-ferruginous, the coxae and the tips of tarsi blackish ; posterior tibias strongly serrated ; abdomen oblong-ovate, convex, golden-ferruginous at base, the four or five apical segments more or less stained with dusky, the extreme base of the first segment black, apical segment clothed with dense golden pubescence. Length 7 — 10 lines. Hub. — Pennsylvania, (Coll. Am. Ent. Soc.) Three 9 specimens. lleadily distinguished by the almost entirely yellow-ferruginous color of the body, and by the bicolored antennfe. (From Cuba and Mexico.) 70. Pompilus (Priocnemis) flammipennis. PompHus flaininipennis, Smith, Brit. Mus. Cat. Hym. iii, 155. Pompilus ignipennis, Cresson, Proc. Ent. Soc. Phil, iv, p. 121. % 5 . — Black, abdomen tinged with blue; antennas orange-yellow; wings bright ferruginous, the apex more or less fuliginous; metatho- rax transversely rugose. Length oh — 9 lines. 7/r^^.— -Cuba, (Coll. Am. Ent. Soc.) ; " St. Domingo," (Smith). Three 9 ^ fo^^i" 'S specimens. 77. Pompilus (Priocnemis) parens. Pompilus terminatiis, Cresson, Proc. Ent. Soc. Pliil. iv, p, 128, (nee Say). Female. — Black; three basal segments of the abdomen ferruginous; wings fuscous. Length 31 lines. i^j6.— Cuba, (Coll. Am. Ent. Soc.) One 9 specimen. This is allied to nothus, but is quite distinct. 78. Pompilus (Priocnemis) nubeculatus. Pompilus nubeculatus, Cresson, Proc. Ent. Soc. Phil, iv, p. 128, 9 . Female. — Fusco-ferruginous; antenna;, except tips, legs, and tip of abdomen, fulvous; wings yellowish-hyaline, with the apex and a cloud between the middle and apex fuscous. Length 7? lines. Hah. — Cuba, (Coll. Dr. J. Guudlach). One 9 specimen. 120 E. T. CRESSON. 79. Pompilus (Priocnemis) pulchellus. Pompilus pulchel/u-'i, Cresson. Proc. Eiit. Soc. Pliil. iv, j). 126, J. Female. — Fcrrux V ."^^ ^ /; ■J* 1 .^ ''**^^/ ^ ' v^ /^ /■ if AMERICAN HYMENOPTERA. 121 margin of the prothorax arcuate ; nietathorax short, rather abrupt, rounded above ; wings uniformly pale yellowish-hyaline, slightly dusky at tips; the cells shaped as in the preceding species; legs ferruginous, the cox;\i, trochanters and extreme tips of the tarsi, black ; abdomen short, ovate, convex, yellowish-ferruginous; extreme base of abdomen and of the first and second segments black ; apical margin of the first and second segments and a stain on the middle of the latter, fuscous; apical segment densely clothed with a golden pubescence. Length 6 lines. ILth. — Vera Cruz, Mexico. (Coll. Am. Ent. Soc, from Mr. Sarto- rius). One 9 specimen. Easily recognized by the broad yellowish band on the anteniuie. 82. Pompilus (Priocnemis) velox. Priornemis velox, Smith, Journal of Entomology, i, p. ."^QS, 9 • '■^Female. Length 5 lines. — Ferruginous, inclining to a brick-red; the head black, with the clypeus, mandibles and antennae ferruginous, the six apical joints of the latter, and the tips of the mandibles black. The sutures of the base of the metathorax and post-scutellum black ; the pectus and the coxae behind black; the trochanters and extreme base of the femora black; the wings flavo-hyaline, the anterior pair with a fuscous fascia and the tips fuscous, the nervures testaceous. The extreme base of the abdomen black, and its apex with a little fus- cous pubescence." Hah. — "Oajaca, Mexico." Not seen. Subgenus AGENIA. This subgenus is characterized by the legs being destitute of spines, (Fig. 8, h, posterior leg) ; the form of most of the species is more Figure 8. graceful than in the preceding subgenera, with I the legs longer and slenderer; the wings vary in their style of neuration, but most of the spe- cies have the marginal cell lanceolate, the se- ,.==>^=^ cond submarginal long and narrow and the third submarginal large (as in Fig. 8, a) ; the abdomen in most species is subpetiolatc, sometimes subsessile or petio- late. Some species resemble those of the genus Ceropales very much, having four distinct submarginal cells, long, slender legs, &c., but the antennae of the 9 are convolute and the head differently shaped. The species have all of them good distinctive characters, and are easily se- parated. TRANS. AMKE. ENT. SOC. (16) JUNE, 1867. 122 E. T. CRESSON. (From the United States.) 8?>. Pompilus (Agenia) cupidus. n. sp. Fimale. — Diirk blue, sliiuins;; clypeus, mandibles, palpi and anten- n;\3 opaque-black; clypeus finely margined and truncate anteriorly; head and scutellum with a slight greenish tinge ; posterior margin of the prothorax subarcuate; pleura and metathorax opaque-black, the latter slightly silvery sericeous and transversely rugose behind ; ante- rior wings uniformly fuliginous, with a brilliant blue and purple reflec- tion ; wing-cells shaped much as in Fig. 8, a, except that the margi- nal cell is narrower, the second subniarginal receives the first recurrent nervure at about the middle, and the third submarginal is a little more narrowed towards the marginal; posterior wings hyaline, slightly dusky at tips; legs long, black, with a strong blue reflection, tibiae black or brown-black ; abdomen ovate, convex, attached to the abdo- men by a short, stout petiole, dark blue, smooth and polished, apical segment black. Length 6 lines. Hah. — West Virginia, (Coll. Am. Ent. Soc.) One 9 specimen. This lovely species is easily recognized by the dark blue body, and brilliant purple anterior wings. 84. Pompilus (Agenia) architectus. Pompilus architectus, Say, Bost. Jour. Nat. Hist, i, p. 303. Female. — Dark blue, clothed with a short cinereous pubescence, long on the shoulders and on the metathorax, the latter with a finely impressed central line, and the posterior angles are silvery; head tinged with green ; clypeus broadly rounded anteriorly ; mandibles fer- ruginous; antennae black or brown-black ; posterior margin of the pi'o- thorax arcuate ; wings hyaline, iridescent, the extreme tips slightly dusky ; wing cells as in the preceding species, except that the margi- nal cell is broader and the third submarginal is longer ; legs black, with a very slight tinge of blue on the femora, anterior tibiae and all the tarsi brown, coxae silvery beneath; abdomen ovate, convex, petio- late, polished blue-black, apical segment brown and hairy. Length 2J — 4 lines. JIab. — Connecticut, Illinois, (Coll. Am. Ent. Soc, and Mr. E. Nor- ton). Four 9 specimens. 85. Pompilus (Ageniaj caerulescens. Agenia coerulescens, Dahlb., Hyin. Eur. i, p. 93. "Submedium, 2 lin. Mens. Suec. long.; blue, posterior coxa) black, antennae fuscous above, luteous beneath; mouth, mandibles, palpi, an- terior legs, intermediate femora entirely, and apex of posterior femora, AMERICAN HYMENOPTERA. 123 fulvous; wings whitish-hyaline, apex slightly smoky; ahdomen very short, convex, conical, with a very short, but indistinct petiole." Hah. — "South Carolina." Not seen. sf). Pompilus (Agenia) pulchripennis, n. sji. % 9 . — Black, shining, subsericeous; anterior margin of the clypeus slightly emarginate; antennas dull black or brown-black; posterior margin of the prothorax arcuate; metathorax rounded, finely impress- ed down the middle, and thinly clothed behind with a fine whitish pu- bescence; wings hyaline, with a large fuscous cloud covering the mar- ginal cell, except its tip, the whole of the second and third submargi- nals and a portion below them, and a transverse fuscous spot on the basal series of transverse nervures, this is sometimes wanting; margi- nal cell long and narrow; second submarginal obliquely quadrate, receiving the first recurrent nervure in the middle, the third submar- ginal subquadrate, narrowed towards the marginal, and receiving the second recurrent nervure near the base; legs black, subsericeous; ab- domen ovate, convex, subpetiolate, polished, sericeous, apex clothed with brownish hairs. Length 3 — 5 lines. Hah. — Massachusetts, Pennsylvania, West Virginia, (Coll. Am. Ent. Soc). Five 9 , one % , specimens. Readily distingui.shed by the hand- somely ornamented wings. It approaches Priocnemis ryennanus m general appearance, being of the same color and with the wings simi- larly marked. 87. Pompilus (Agenia) brevis, n. sp. 3Ja/i'. — Black, clothed with a short greyish pubescence; head opaque; a line on the front orbits, most of the clypeus — the anterior margin of which is truncate — the mandibles, except tips, and the palpi dull fulvous ; antennae as long as the head and thorax, stout, crenulate beneath, brown-black above, fulvous beneath; thorax robust, broad in front, narrowed behind, the pro- and mesothorax opaque, the posterior margin of the prothorax arcuate; scutellum and metathorax shining, the latter smooth and rounded, faintly impressed down the middle, and whitish-sericeous at tip ; wings long, hyaline with a fuscous cloud on Figure 9. the apical third, and a narrow band margining the basal series of transverse nervures ; wing- cells as in Figure 9; posterior wings hyaline, slightly dusky at tips; legs black, sericeous; the anterior femora within, the four posterior femora, except tips, the an- terior tibiae at tip and within, their tarsi entirely and the intermediate 124 E. T. ORESSON. tarsi, except base, all testaceous or dull fulvous, the posterior tarsi is tiuged with the same color; abdomen small, short, uarrow, subovate, subpetiolate, shining black. Length 24 lines. Hah. — Georgia, (Coll. Am. Ent. Soc). One % specimen. A very distinct little species, remarkable for the large thorax, small abdomen, and curious shape of the marginal and submarginal cells. 88. Pompilus (Ageaia) Dakota, n. sp. Male. — Slender, black, subopaque, the prothorax, metathorax and coxae clothed with a silvery sericeous pile ; anterior orbits yellow ; clypeus truncate anteriorly; mandibles rufo-testaceous near the tips ; })alpi fuscous, varied with testaceous; antennae long, rather slender, filiform, black above, beneath testaceous at base and toward the tips; thorax more gibbous than usual ; posterior margin of the prothorax subangular; scutellum convex and pubescent; the mesothorax has a small tubercle on the disk; metathorax small, subconvex, densely sil- very in certain lights; wings long, ample, uniformly fuliginous, sub- violaceous, with a transverse, darker cloud beneath the marginal cell, and another at the extreme apex; marginal cell lanceolate; second submarginal cell oblong, subquadrate, pointed towards the base of the wing; third submarginal cell large, shaped as in Fig. 8, a ; legs long, black; coxae silvery sericeous ; anterior tibiae testaceous; intermediate tibiae and all the tarsi more or less brownish; abdomen long, subcla- vate, subpetiolate, subconvex, black, shining, the two apical segments above orange-yellow. Length 5 lines; expanse of wings 10 lines. Var. %. — Frontal orbits obscurely yellowish; mandibles piceous; palpi fuscous; antennae orange-yellow, blackish at base and apex; an- terior tibiae and tarsi brownish ; apex of abdomen obscurely testaceous; otherwise same as the other S specimen. Hah. — Dakota Territory; West Virginia, (Coll. Am. Ent. Soc). Two S specimens. Should the variety from West Virginia prove to be a distinct species, it may be ndmod pallid iconiis. .S9. Pompilus (Agenia) nigropilosus, n. sp. Male. — Black, shining, rather thickly clothed with a black pubes- cence, long and dense on the head ; thorax and abdomen with a very short cinereous pile, seen only when viewed in certain lights; clypeus small, truncate anteriorly; uumdibles reddish near the apex ; anteniue moderately long, incrassate, tapering towards the tip, opaque-black ; thorax densely punctured; posterior margin of the prothorax arcuate; disk of metathorax and scutellum flattened; metathorax roughly puuc- AMERICAN HYMENOPTERA. 125 tured. with a well impressed line down the middle, and slightly exca- vated on each side behind ; wings subhyaline, stained with fuscous and subviolaceous towards the apex ; marginal cell lanceolate ; second and third submarginals quadrate, the third much larger than the se- cond, receiving the second recurrent nervure near the base; legs stout, black, subsericeous, clothed with short black pubescence; abdomen subsessile, polished, convex above, clothed with very short black pu- bescence; venter polished. Length 4 i| lines. Hab — West Virginia, (Coll. Am. Ent. Soc), One % specimen. 90. Pompilus (Agenia) albopilosus, n. sp. ]\Ja((:. — Form and color of the preceding species, but the pubescence is rather more dense and is white or ashy instead of black, the vertex has a few black hairs; thorax opaque, the posterior margin of the pro- thorax is angular; wings hyaline, iridescent, slightly smoky at tip; wing-cells much as in the preceding species ; anterior tibiae testaceous in front; abdomen more ovate, subdepressed, polished. Length 05 lines. i/«^>.— West Virginia, (Coll. Am. Ent. Soc). Two % specimens. This may prove to be only a variety of nigro- jyilosus. 91. Pompilus (Agenia) 'bombycinus, n. sp. Female. — Black, subopaque, strongly ashy sericeous, especially strong on the abdomen ; clypeus large, apical margin broadly rounded and recurved; antennae long, slender at tips; prothorax broadly mar- gined posteriorly, the posterior edge angular or subangular; wings hyaline, dusky at tips; marginal cell long, sublanceolate, second and third submarginals about equal in length, the third the largest, slight- ly narrowed towards the marginal and receiving the second recurrent nervure a little before the middle ; legs black, coxfe strongly sericeous; anterior tibiae, and all the tarsi, beneath golden sericeous ; abdomen short, ovate, convex, petiolate, shining, very strongly sericeous; apex with a few long, pale hairs. Length 4^ lines. Male. — kSlenderer than the female, with the head and thorax more strongly sericeous; clypeus deeply and broadly emarginate ; metatho- rax with a shallow channel down the middle ; wings darker at tips ; anterior legs brownish; abdomen much smaller than in the 9 ; *^ub- clavate. subdepressed. Length 4|5 lines. Ilnh. — West Virginia, (Coll. Am. Ent. Soc). One 9 , two % specimens. 126 E. T. CRESSON. 1»2. Pompilus (Agenia) varipes. n. sp. Female. — Black, clothed with a dense ashy-sericeous pile; anterior margin of the clypeus sinuous ; tips of mandibles piceous ; prothorax broadly margined posteriorly, the posterior edge arcuate; metathorux silvery, finely sculptured, with scattered deeper punctures, and a finely impressed line down the middle ; wings hyaline, the extreme tip dusky; marginal and subuiarginal cells shaped much as in the preceding spe- cies, except that the third submarginal cell is larger, longer and more narrowed towards the marginal; legs black, tips of anterior femora, their tibia) and most of their tarsi fulvous, as well as the extreme tips of the four posterior tibiae; the tarsi tinged with testaceous; abdomen ovate, convex, petiolate, shining, pruinose, the apical segment with a large ovate polished space surrounded by long pale hairs. Length 5 lines. llab. — Illinois, (Coll. Am. Ent. Soc). One 9 specimen. Closely allied to bomb^cinus, but the thorax is broader and the legs differently colored. 93. Pompilus (Agenia) pulchrinus, n. sp. Mdle. — Slender, black, clothed with fine, silvery-white pubescence ; broad anterior orbits not reaching the summit of the eyes, narrow pos- terior orbits, the clypeus, except a large square spot on the middle, and the mandibles, except extreme- base and apex, white ; clypeus large, sinuous anteriorly ; antennae long, filiform, opaque-black above, testaceous beneath, especially beyond the middle; posterior margin of the prothorax angular; scutellum prominent, convex; metathorax smooth, rounded, and densely silvery ; wings hyaline, slightly irides- cent, the apical margin I'uliginous; w^ng-cells as in Fig. 8. broad frontal orbits, clypeus, ex- cept a central black streak, the mandibles and the palpi, white; an- tenna; long, filiform, brown-black above, pale testaceous beneath, the basal joint white; the coxaj, except the posterior pair above, are ful- vous ; abdomen sometimes nearly cylindrical, with the apical mai-gins of The segments testaceous, the apical segment more or less whitish, l^ength So — 4 lines. Hah. — New York, Maryland, West Virginia, (Coll. Am. Ent. Soc, and Mr. E. Norton). Two 9 , two % specimens. 98. Pompilus (Agenia) calcaratus, n. sp. ]\IalK. — Slender, cylindrical, black, clothed with a fine, whitish pu- bescence; clypeus truncate in front, white, with a more or less large black spot at base; mandibles generally with a whitish spot near the tip; palpi pale fuscous; antennae rather short, thick, entirely dull black; prothorax broadly margined posteriorly with white; metatho- rax rounded, and silvery on the sides and behind ; wings hyaline, slightly iridescent, the extreme apex and a faint cloud over the sub- marginal cells, pale dusky ; marginal cell lanceolate; second and third submarginal cells small, subequal, the former quadrate, the latter con- AMERICAN HYMENOPTERA. 129 siderably narrowed towards the marginal; legs fulvous; the coxae, tro- chanters, base of anterior femora, and the four posterior tarsi, black ; anterior coxa3 at tips, and the tibial spurs, white ; sometimes the four posterior femora and tibia) are more or less varied with blackish ; ab- domen subcylindrical, subsessile, black, immaculate. Length 3 — ol lines. Ifab.—Coun., N. Y., Penna., Ills., (Coll. Am. Ent. Soc. and Mr. E. Norton). Six S specimens. Allied to mcUiprs, but easily separated by the prothorax being margined with white and by the white tibial spurs. 99. Pompilus (Agenia) congruus, n. sp. Ffinalr. — Black, covered with very fine, dense, pale sericeous pile, silvery on the thorax beneath and on the coxae ; clypeus very short and transverse, its anterior margin very slightly arcuate; prothorax larger than usual, its posterior margin nearly truncate, very slightly arcuate; metathorax smooth and rounded, silvery on the sides; wings Figure 10. hyaline, faintly clouded at tip, the wing-cells as in 10: legs black, strongly sericeous, the anteri- or tibiae and tarsi pale in front, coxse silvery; ab- domen short, ovate, convex, subsessile, entirely reddish-fulvous, strongly sericeous. Length 5 lines. ILih. — West Virginia, (Coll. Am. Ent. Soc). One $ specimen. This fine species is remarkable for having the third submarginal cell furnished with an appendiculate nervure at tip, as represented in the above cut, being the only instance of the kind that I have seen in this family. 100. Pompilus (Agenia) longulus, n. sp. Male. — Long, narrow, black, opaque ; face short, somewhat silvery, clypeus short, very transverse, truncate in front ; antennae long, slen- der, filiform, entirely black ; thorax long, narrow, subdepressed above; prothorax larger than usual, its posterior margin angular ; metathorax rounded, somewhat silvery on the sides ; wings subhyaline, iridescent, the apical margin fuscous; marginal cell long, sublanceolate; second and third submarginal cells small, the former longest, the latter widest and narrowed towards the marginal ; legs entirely black ; abdomen rather short, subpetiolate, convex, reddish-fulvous, shining, the ex- treme base of the first segment black. Length 4j lines. H ^'i*^ apex generally incurved and subcompressed. The form of the head and prothorax of the females of the genus closely resembles that of Pompilnii? purpuripennix^ and three other species which I have doubtingly referred to PompUus. 1. Planiceps niger, n. sp. Female. — Entirely black, with a very faint violaceous reflection ; tips of mandibles rufo-testaceous ; posterior margin of the prothorax nearly straight across or truncate; metathorax abrupt on the sides and behind, with a finely impressed line down the middle ; legs benejith, especially the coxse, brownish sericeous; anterior wings fuliginous, with a violaceous reflection, the apical margin darker; posterior wings subhyaline, dusky at tips. Length 6 lines. Hub. — Connecticut, (Coll. Mr. E. Norton) ; Georgia, (Coll. Am. Ent. Soc). Two 9 specimens. 2. Planiceps collaris. F/aniceps collaris, Cresson, Proc. Ent. Soc. Phil, iv, p. 132, 9- Female. — Black; anterior and posterior margin of the prothorax, and the abdomen entirely, ferruginous ; wings fuseo-hyaline. the ante- rior pair with a strong golden reflection. Length 5j| lines. Hub.— Cnhn, (Coll. Am. Ent. Soc). One 9 specimen. ?.. Planiceps cubensis, n. sp. M(ib\ — Black, densely clothed with a pale sericeous pile ; anterior orbits and clypeus silvery; tips of mandibles and the palpi dull testa- ceous; anteniu« short and thickened; posterior margin of the protho- rax arcuate, with a broad luteous band ; metathorax and coxae silvery, the former well impressed down the middle ; wings hyaline, the a|)ical third fuscous, with a strong golden reflection ; wing- cells as in Fig. 13 ; legs clothed with a dense cinereous pile, rather strongly spinose, tibife and tarsi brownish; abdomen narrow, convex, about as long as the thorax, subcompressed at tip, shining, subsericeous. Length 3i lines. 7/a6.— Cuba, (Coll. Br. J. Gundlach, No. 85). One S speeiuien. AMERICAN HYMENOPTERA. loT 4. Planiceps concolor. , Planiceps concolor, Smith, Journal of Entomology, i, p. SO. '■'■Female. Length 5 lines. — Deep blue, with brilliant reflections in different positions; mandibles obscurely ferruginous ; antennje black ; wings beautifully iridescent, the anterior pair dark brown, the poste- rior pale fusco-hyaline ; anterior tarsi rufo-testaceous, the intermediate tibijfi and tarsi slightly spinose; abdomen of a smooth, shining, irides- cent blue." Hah. — " Mexico." Not seen. b. Planiceps notabilis. Flankcps notabilis, Smith. Journal of Entomology, i, p. 80. '•'■Female. Length 1\ lines. — Black, subopaque, convex, with a fine, silky, silvery pile ; that on the vertex and disk of thorax has a purple iridescence; mandibles obscurely ferruginous at their apex ; scape of the antennae compressed ; posterior ocelli situated on the posterior mar- gin of the vertex; wings very dark and slightly iridescent; intermedi- ate and posterior tibiae and tarsi slightly spinose. Abdomen : a large subovate, yellowish-white spot on each side of the second and third segments, and a single one at the base of the apical segment." Ilah. — ''Mexico." Not seen. Genus APORTJS, Spinola. '■'■Head subrotund, a little wider than the thorax; eyes lateral and ovate; the stemmata in a triangle on the vertex ; the antennae insert- ed forward on the face at the base of the clypeus ; the labrum concealed. Thorax elongate, the prothorax as long as the metathorax ; the wings inserted in the middle at the sides of the thorax ; the superior pair [Fig. Figure 14. 14] idth one marginal and two suhmarginal cells; \the marginal cell small; the jirst suhmarginal 'elongate, twice as long as the second, ivhich is snh- quadrate, and receives both the recurrent nervures, the first at ahout one-third from its hase, the second uniting icith the second transverse cubital nervure; legs of moderate length, the anterior tarsi not ciliated. Abdomen elongate-ovate." — Smith, Cafal. Brit. Add. Hi/ni. p. 78. Aporus fasciatus. Aporu.H fasciatv.s, Smith, Cat. Ilym. Br. Mus. iii, p. 175. ''Male. Length 4 lines. — Black ; the face covered with short sil- very pubescence, the cheeks and the thorax have a similar clothing, on the pro- and mesothorax it is very thin, but dense on the metatho- rax, sides, coxae and femora beneath ; wings hyaline, their apical mar- gins clouded. Abdomen : the apical margins of the first and three TRANS. AMER. ENT. SOC. (IS) JUNE, 1867. 138 E. T. CRESSON. following segments have fasciae of silvery pubescence ; the apical seg- ment pale testaceous." Hah. — ''Warm Springs, South Carolina." Not seen. Genus CEROPALES, Latr. Head transverse, wider than the thorax, sometimes compressed ; an- tennae thickened, not convolute iu the 9 5 labrum exserted. Thorax gibbous; scutellum prominent; metathorax short and inclined. Winga with one marginal and four submargiual cells; marginal cell long, la'uceolate; second submarginal cell generally elongate-quadrate, some- times regularly quadrate, receiving the first recurrent nervure beyond the middle; third submarginal large, much narrowed towards the mar- ginal, receiving the second recurrent nervure before the middle ; the fourth submarginal cell extending to the apex of the wing. Legs stout, entirely or almost destitute of spines ; posterior legs very long. Abdo- men ovate, convex, subsessile. The species of this genus are distinguished from those of Pompllus by having the antenna3 of both sexes porrect and thickened, never con- volute, and by having the posterior legs much longer, sometimes dis- portionately long. 1. Ceropales bipunctata. Ceropales bipunctata, Say, Long's Second Exped. ii, p. 334. Female. — Black, more or less sericeous; anterior orbits not reaching the summit of the eyes, yellowish-white ; the clypeus with a small whitish spot on each side, sometimes wanting; antennae as long as the head and thorax, the basal joint with a whitish line beneath; one spe- cimen has a faint yellowish dot on the post-scutellum ; metathorax ab- ruptly truncate behind, the posterior angles with a whitish spot ; wings violaceous-black, paler at tips; legs black, strongly silvery-sericeous, the posterior femora, except base and apex, rufo-ferruginous ; abdomen immaculate. Length 5 — 8 lines. Male. — (closely resembles the 9 y ^ut the fece, spot between the an- tennae, clypeus, labrum, and two basal joints of the antennae beneath are yellow ; the posterior orbits have a faint yellowish line ; the poste- rior margin of the prothorax has a yellow line, sometimes slightly in- terrupted in the middle; two specimens have a yellow spot on the post- scutellum, and the front tibias and tarsi are more or less ferruginous; otherwise like the $ . Length 6 lines. Hab. — Connecticut, New York, Delaware, Georgia, Illinois, Canada. (Coll. Am. Ent. Soc. and Mr. E. Norton). Twelve 9 , four % specimens. Easily recognized by the black body and legs, and red posterior femora. AMERICAN IIYMENOPTERA. lo9 2. Ceropales nigripes, n. sp. Female. — Black, opaque, somewhat sericeous; narrow anterior or- bits, small spot on each side of the clypeus, and a very narrow, faint line on the posterior orbits, white ; antennae rather short, not as long- as the head and thorax; post-scutellum with a white spot; extreme posterior angles of the metathorax with a lunate white spot; wings blacker than in bijnmctata, the violaceous reflection more brilliant ; legs entively black, sericeous, especially the coxae beneath ; abdomen immaculate. Length 7 lines. Hah. — Dakota Territory, (Coll. Am. Ent. Soc). One $ specimen. Difi'ers from hipunctata only by the shorter an- tennae, and by the legs being entirely black. 3. Ceropales longipes. Ceropales fasciata, Say, Long's Second Exped. ii, p. .3.3.'^, (nee Fabr.) Ceropales longipes, Smith, Brit, Mns. Cat. Hym. iii, p. 179, pi. 4, fig. 2. Ceropales frigida, Smith, Brit. Mus. Cat. Hym. iii, p. ISO. Female. — Black ; clypeus, a spot above, labrum, mandibles, and or- bits of the eyes, interrupted on the summit, a spot on the two basal joints of the antennae beneath, posterior margin of the prothorax, as well as a spot on each anterior angle, a short longitudinal line on the disk of the mesothorax, a dot on the scutellum, a spot on each posterior angle of the metathorax followed by an angular line, and a triangular spot on each side of the thorax, above the intermediate coxae, all lemon- yellow; metathorax silvery sericeous in certain lights; wings hyaline, the tips dusky; legs honey-yellow, posterior pair very long; coxae- black, the two anterior pair yellow in front, the posterior pair honey- yellow at tips and with an exterior yellow stripe ; tarsi yellow ; extreme base of the joints of the posterior pair blackish ; abdomen shining, black, first segment with a rather large yellow spot on each side ; four following segments each with a waved, transverse line, slightly inter- rupted in the middle, and dilated into an ovate spot on each extreme side, the fascia on the fifth segment is broadest ; sixth segment with a large yellow spot, nearly occupying the whole segment in one specimen ; venter immaculate. Length 4 — 5 lines. ^a6.— Florida, (Coll. Mr. E. Norton) ; Illinois, (Coll. Am. Ent. Soc). Two 9 specimens. A very handsome species, easily recognized by the black body, and honey-yellow legs, the posterior pair of which are unusually long. 140 E. T. CRESSON. Figure 15. 4. Ceropales Robinsonii, n. sp. (Fig. 15.) Mak. — Black, polished, impunctured ; face silvery; orbits, broader iu front, face, spot above autenniTe, clypeus, labrum, mandibles and palpi, lemon-yellow ; antennae longer than usual, thickened beyond the middle, black, the three basal joints yellow, tinged with ferruginous above ; poste- rior margin of the prothorax, as well as a spot on each ante- rior angle, a spot on the poste- rior middle of the mesothorax, another on the scutellum and post-scutellum, a transverse line on each extreme posterior angle of the metathorax, and a spot on each side of the thorax just above the intermediate coxjb, all lemon-yellow ; pleura and Ccropnles Robinsonii, % . metathorax silvery-sericeous, the latter much flattened behind ; wings hyaline, slightly tinged with yellowish, iridescent; legs honey -yellow, the posterior pair longer than usual; the coxjb spotted with yellow, tips of the femora, the anterior tibiae, tips of the intermediate pair and all the tarsi, yellow; tips of the tarsi, and the incisures of the posterior pair, blackish; abdomen honey-yellow, an ovate yellow spot on each side of the second, third and fourth segments, much larger on the se- cond; venter immaculate. Length 4 lines. Hub. — West Virginia, (^Coll. Am. Ent. Soc). One S specimen. This is the most elegant species of Ceropales that I have seen, and it gives me great pleasure to dedicate it to my kind and generous friend, Coleman T. llobinson, of New York, in whom American Entomology finds a most liberal patron. r.. Ceropales fraterna. Ceropales /raterna, Siuitli, Brit. Mus. Oat. Hym. iii, p. ISO, 9 • Female. — Black ; orbits broad in front and interrupted on the sum- mit, clypeus, except a longitudinal black spot iu front, and the labrum lemon-yellow; antennae robust, rather long, the two basal joints beneath more or less yellowish ; thorax opaque, with numerous deep punctures; posterior margin of prothorax, as well as a spot on each anterior angle, u spot on scutellum, sometimes wanting, a transverse line on post-sou- AMERICAN HYMENOrTERA. 141 telluiu, a spot on the posterior angles of metathorax, and a spot on each side of the thorax just above the intermediate coxae, sometimes wanting, all lemon-yellow ; wings hyaline, sometimes stained with yel- lowish, extreme tips dusky; legs black; a stripe on the anterior coxae, most of the intermediate pair, tips of the posterior pair and an exterior stripe, tips of all the femora, and the four anterior tibias exteriorly, lemon-yellow ; the four anterior tibiae beneath and their tarsi are gene- rally pale brownish ; the posterior legs are sometimes entirely brown or reddish-brown, with the femora not tipped with yellow, and some- times their tibiae are more or less yellow at base; posterior legs not disproportionately long, as in the preceding species; abdomen with a broad yellow band on each of the four basal segments, that on the first segment is sometimes more or less interrupted in the middle; fifth and sixth segments more or less yellow; venter immaculate. Length 3 — 5|f lines. Mule. — Closely resembles the 9 > but the clypeas is entirely yellow, and the first segment of the abdomen has a large ovate spot on each side, except in one specimen, which has a broad band, constricted and slightly interrupted in the middle. Ijength 2h — 5 lines. Hah. — Mass., Conn., N. Y., Penna., West Va., Ills., Colorado Terr., (Coll. Am. Ent. Soc. and Mr. E. Norton). Twelve 9 j six % specimens. The legs of this species vary much in color, and the markings of the body are sometimes yellowish-white ; the abdominal fasciae are generally very broad in the 9 j sometimes wavy, and more or less emarginate on each side anteriorly. 6. Ceropales cubensis. Ccropaks cubensis, Cresson, Proc. Ent. Soc. Phil, iv, p. 1.32, 9- Female. — Black; head, thorax and legs silvery-sericeous; orbits, very broad in front, face beneath antenna3, a spot between them, the clypeus and labrum, pale yellowish; two basal joints of antennae more or less yellowish beneath; prothorax with a spot on each side, and its posterior margin, spot on scutellum, and a transverse one on the post- scutellum, and the extreme posterior angles of the metathorax, pale yellowish ; mesothorax with deep, close punctures ; wings hyaline, dusky at tips; legs ferruginous, the four anterior coxae black, more or less yellowish beneath ; posterior tarsi very long, fuscous ; basal seg- ment of abdomen with a sublunate pale yellowish spot on each side ; remaining segments each with an apical pale yellowish fascia, very broad on each extreme side, deeply emarginate anteriorly on each side of the middle, and more or less dilated on the disk ; the fasciae are 142 E. T. CRESSON. sometimes more or less interrupted on tlie middle or on each side. Length 3 J — 4 lines. Male. — Like the $ , with the anterior tibias and tarsi, and base of the intermediate tarsi, pale yellowish ; the coxae are ferruginous, the two anterior pair yellowish beneath ; the fasciae on the second and third abdominal segments are widely interrupted in the middle. Length 'ih lines. //a6.— Cuba, (Coll. Am. Ent. Soc). Three 9 , and one % , specimens examined. 7. Ceropales clypeata. Ceropales clypeatus, Cresson, Proc. Ent. Soc. Phil, iv, p. 13.3, 9 • Female. — Black ; clypeus, except a black central spot, the palpi, posterior margin of prothorax, and tegulge, yellowish white ; basal joint of antennae ferruginous beneath; wings whitisti-hyaline, with a small, pale fuscous cloud near the apex; legs ferruginous, posterior tarsi fus- cous, tibial spurs white ; abdomen piceous-black, immaculate, the basal segment tinged with obscure ferruginous. Length 3 lines. Ilah. — Cuba, (Coll. Dr. J. Gundlach). One 9 specimen. 8. Ceropales agilis. Ceropales agilis, Smith, Journal of Entomology, ii, 269, 9 • '■'■Female. Length SJ lines. — Black; inner orbits of the eyes, sides of the clypeus broadly, and outer orbits of the eyes narrowly, white ; a line on the scape in front, and basal joint of flagellum in front, white; head punctured before the ocelli, being smooth and shining behind ; posterior margin of prothorax, tubercles, spot on scutellum, post-scutel- lum, and posterior lateral angles of metathorax, white ; mesothorax with scattered punctures, its anterior margin with a scries of very short, fine striae ; sides of metathorax with silvery pile ; legs ferrugi- nous, posterior pair elongate; coxai black; apical joints of intermedi- ate and posterior tarsi fuscous ; wings hyaline, nervures black ; abdo- men ferruginous, with the base fuscous above." llab.—'' Mexico." Not seen. AMERICAN HYMENOPTERA. 143 Genus MYGNIMIA. Smiili. For this genus, Mr. Smith (^Bril. JJiis. Oat. IL/m. iii, p. 182) gives tlie following characters: "The superior wings [Fig. 16] with one Figure 16. elongate marginal cell and three .submarginal cells; the first re- current nervure uniting with the second transverso-cubital ner- vure ; the second recurrent ner- vure entering the third submar- ginal cell about one-third from its base; the legs strongly serrate or spinose, the claws having a tooth beneath more or less developed, in some species as stout as the claws themselves." All the species de- scribed are from the Old AVorld, except the following : — 1. Mygnimia mexicana, n. sp. Femole. — Large, deep black, without any violaceous or purplish re- flection ; head and thorax opaque, abdomen shining ; antennae pale- yellowish, the scape and base of flagellum, black; wings deep bright- yellow, the anterior pair tinged with bright ferruginous; the extreme apex of both wings fuliginous ; metathorax transversely rugose, trun- cate behind. Length 10^ — -12] lines. Hah. — Vera Cruz, Mexico, (Coll. Am. Ent. Soc., from Mr. Chas. Sartorius). Four 9 specimens. DiiFer from the description, given below, of natii- lata by the mucli larger size, by the color not being violaceous-black, and by the yellow antennae. 2. Mygnimia ustulata. Hemipep.'sis ustulata, Dahlb., Hym. Eur. i, p. 123. Mygniviia ustulata, Smith, Brit. Mus. Cat. Hym. iii, p. 189. '"■Female. — Medium (f inch long), violaceous-black; wings fulvous, somewhat golden, base and apex dark fuliginous." Hab. — " Mexico." Not seen. Genus PEPSIS, Fabr. This genus is characterized by having the wing-cells arranged as in Fig. 17. The antennee are convolute in the 9; long, porrect and Figure 17. incrassate in the % ; the four pos- terior tibia3 are serrated in the 9 , simple in tlie % , which have the posterior legs very long in propor- tion to the two anterior pairs, and have the joints of their tarsi flat. The species are of large size, and most of them are very handsome. 144 E. T. CRESSON. (From the United States.) 1. Pepsis formosa. I'ompUusfornwsus, Say, West. Quar. Rep. ii, p. 7(5: American Entomology, Plate 42. Female. — Black, with a bluish or greenish reflection ; elypeus arcu- ate in front; antennae black, sericeous; metathorax abruptly truncate behind, the verge of the truncation strongly carinate, the disk above transversely striated, with a shallow channel down the middle, and a longitudinal carina on each side, just before the stigmata; wings bright fiery fulvous, the apical margins paler, the extreme base black ; abdo- men shining, with a very strong blue or violet reflection ; apex hairy. Length 13 — 18 lines. /7a/..— Texas, California, (Coll. Am. Ent. Soc). Two 9 specimens. 2. Pepsis dubitata, n. sp. Female. — Velvety-black, with a more or less brilliant purple reflec- tion, less obvious on the head and thorax; anteunci3 orange-yellow, the two basal joints black; metathorax transversely striated; wings uni- formly black, violaceous, the extreme tip slightly paler. Length 13 lines. Male. — More slender than the 9 , with the purple reflection more uniform over the body; antennjx; long and thick; abdomen r^/y'/vY/y black, with the purple or violet reflection more brilliant than on the rest of the body. Length 10 lines. i7a 6.— Georgia, (Coll. Am. Ent. Soc). One 9 , four % specimens. This may be identical with elrfjam^^ but none of the % specimens have the slightest indication of reddish margins to their segments. :;. Pepsis elegans. rep.-its cloj'ms, St. Farg., Hym. iii, p. 489, %. Smith, Brit. Mus. Cat. Ilym. iii, p. 201, 9- Male. — Anteniuc thick, yellow; the two basal joints black; head and thorax black, without any reflection; disk of the metathorax with a few transverse stria); abdomen bluish-black, covered with a short, dense bluish-black pubescence ; posterior margin of the second, third, fourth, fifth and sixth segments narrowly ferruginous ; legs black, with black hairs; wings black, violaceous, the posterior margin paler. — *SV. Farrjeaa. The fhnale is similarly colored to the male^ but is usually more bril- liant in color, the abdomen being sometimes of a rich purple, owing to the beautiful iridescence of the short pubescence or pile which clothes it • the red margin of the abdominal segments of the male, as described AMERICAN HYMENOPTERA. 145 by 8t. Fargeaii, is attributable to the iridescence of the pile, and is most observable in sunlight. — Smith. Hah. — "Pennsylvania; Georgia." Not seen. 4. Pepsis cyanea. Sphe.r cyanea? Linn., Anioen. Acad, vi, p. 412; Syst. Nat. i, )i. 941. Pepsis cyanea, Fabr., Ent. Syst. ii, p. 201; Syst. Piez. p. 211. Beauv., Ins. Afriq. et Amer. p. 38, pi. 1, fig. 3. "Body, antenna; and legs nigro-cyaneous ; abdomen and wings blue, apex fuscous, somewhat pale." Ilab. — "United States." — {Beauv.). Not seen. 5. Pepsis luteicornis. I'rp.si.s luteicornis, Fabr., Syst. Piez. p. 214. Beauv., Ins. p. 39, pi. 1, fig. o. St. Farg., Hym. iii, p. 481. "■Female. — Black; antennae yellow, the two basal segments black ; disk of metathorax transversely striated; abdomen black, opaque; wings black, opaque, without any reflection. Length 14 lines." — {St. Fargeau.) Hah. — " South Carolina." — {Beauv'.) Not seen. This species is generally found in South America, and the locality given by Beauvois may be erroneous. The color appears to be black, without any reflections of blue or purple. (From the West Indies, Mexico and Panama.) 6. Pepsis marginata. Pepsis warginata, Beauv., Ins. Afriq. et Amer. p. 94, pi. 2, fig. 2, '^ , Z, %. St. Farg. et Serv. Ency. Meth. x. 64. St. Farg., Hym. iii, p. 470. Guer. LaSagra's Hist. Cuba, Ins. p. 761. Cressou, Proc. Ent. Soc. Phil, iv, p. 133. Female. — Black, velvety, with a more or less strong violet or purple refliection over the body and legs; antennae brown sericeous, black at base; metathorax transversely striated, with a shallow channel down the middle; wings bright fulvo-ferruginous, somewhat golden, the ex- treme base black, and the apical margin of both anterior and posterior pair fuliginous, violaceous. Length 9 — 23 lines. Male. — More slender than the female, with the wings more broadly black at base and at tip. Length 12 — 16 lines, Hab. — Cuba, (Coll. Am. Ent. Soc). Five 9 , four % specimens. Easily recognized by the bright golden ferruginous wings broadly margined with blackish. It varies very much in size. TRANS. AMER. ENT. SOC. (19) JUNE, 1867. 146 E. T. 0RK880N. 7. Pepsis Montezuma. /'rji.'ii.s MoHlr-:iiina. Sinilli, P.rit. Mils. Out,, irym. iii, p. 111'.), % 9 . ^^Fcmah. Leiif];(li 1(1 lines. — IJlack ; lieiid, thorux, ;il)(l(iiii('ii .uid lej];.s adonicfl wifch :i ricli hliK; iiidciscent pile, most vivid on tlio alxlo- iiioii ; tliarax liaving sliades of iiK^tallic-^roen and black in certain lii;lits; licad, thorax and coxao have a scattered, lonpj, loose, black ]»u- bescence; ariteinuc, mandibles and palpi Mack; metathorax haviiij:; a transverse, ruj^ose, waved striation, and a c(>ntral abbreviated, longitu- dinal depression, and on (jach side at base and apex an obtuse tubercle; wings reddish-yellow, having a broad fuscous stain at base, the apical margins having a paler cloud at their apex, not extending to tli(; fliiid submarginal ecdl in width; abdomen of" a splendid blue, the jiubescence at the a])cx black. '■'■Male. Length 12 lines. — \\\ color cbi(^(ly resembling tlu; ('cnialc, but the abdf)men is bright violet, and the wings are paler; fourth seg- ment of abdomen beneath has on each side a floccus of long curled hair." y/a/>.— "Mexico." Not seen. It must be very closely allied to marjiiKila. H. Pepsis domingensis. J'cpsla Domhu/cnsifi, St. Fiivg., Ilyin. iii, p. 177, % . '■^Malc. — Head bbiek, covered with a binisli-black pubescence; an- tenna; black; (borax black, covered with a bluish-black ])ubes(;enc(r ; disk of the metathorax convcix ; abdomen covered with a bluisb-)»lack ))ubes(rence; legs })luisli-black ; wings ferruginous, their base blackish, as well as the apex, which is broadly blackish, with a violaceous reflec- tion; stigma, costa and teguliu black. Ijciigth IT) lines. Il((l>. — ''St. Domingo." Not seen. Also closely allied to mm-ijuuitii. V. Pepsis Sommeri. I'epais Sommeriy'Da.h.W)., Myni. Ivir. i, p. Ki,^. Fcnuilr. — Large, velvety blacik, witli a bbu! reflection changing to green when viewed in certain lights; antenn;o brown-sericeous; disk of the nu'tatborax transversely striaU^l ; wings fulvo-ferruginous, the basal third id' the anterior pair, the basal hall of the ])osteri(n- pair, and the apical margins of both pairs, black ; legs with a strong bint; reflec- tion ; abdomen smooth and shining, the blue and gremi reflections more brilliant ; the head, nu^tal borax and apex of abdomen clothed with black iiairs. iicngth 21 lines. Ilah. — V^era Cruz, Mexico, (Coil. Am. I'iiit. Soc, from Mr. Chas. Sartorius). AMKRTCAN TIYMKNOT'TKHA. 1 J7 One 9 ^pf'f'iiiicn. This Ix^mtiful spocics niiiy lio ;it, onoe rocoffnizctl by tlie wiiij^H bciiif^ brttudly black at ba.sc. ]t i.s closely allied to M. Pepsis speciosa, Beauv., Ins. Afric. ct Anic^r. p. 9.'>, pi. 2, fig. 5. I'e]>sis C't:ru/ea, Snt'iili, Brit. Mus. f'at. Ilyin. iii, 191). '■'■ Fntitilc. — Head covenid willi a bluish-black pubescence, and with ])lack liairs; aiitennic black; thorax with bluish-black pubesc(!iice ; disk of the nictathorax with a longitudinal channel; abdonuin with bluish-black jtubescence, the anus wifli lilack hairs; lof^s black, the liairs bluish-black, the; spin(!S black ; win.— "St. Domingo." Not seen. 12. Pepsis castanea. I'cjisis caslonea, Beauv., Ins. p. O.'i, pi. 2, fig. 4. "JJiack, with a violet reflection; antenn.'c, except base, tibiae and tarsi, testaceous; first segment of abdomen with a yellow band; wings rufous." JIah. — "St. Domingo." Not seen. J'>. Pepsis quadrata. I'epsiH quadrata, St. Farg., Ilyni. iii, p. 478, %. Mule. — Slender, black, with a beautiful, deep blue iridescent pile ; antennae black ; wings black, strongly violaceous, the extreme apex of the anterior pair hyaline; a large, irregular, ferruginous patch in the middle of each anterior wing, and a dot of the same color in the costal middle of the posterior pair; legs blue-black; abdomen slender, sub- p(;tiolate, blue-black. Length 9 J lines. J lab. — Island of St. Thomas, (Coll. Mr. E. Norton). One % specimen. This is a beautiful and easily recognized species. 148 E. T. CRESSON. 14. Fepsis ignicornis. Pepsis ignirorniH, Cresson, Proc. Ent. Soc. Pliil., iv, p. 1?>4. %. Male. — Black ; abdomen with a purple-blue reflectiou ; antcnnre, except extreme base, fulvo-ferrui!;inous ; wings blackish-violaceous, with a large, irregular ferruginous mark about the costal middle. Length 9i lines. 77a5.— Cuba, (Coll. Am. Ent. Soc). One % specimen. Resembles quailrata, but is distinct by the yel- low antenna; and by the apex of the wing not being clear. ]■>. Pepsis ruficornis. tSphe.c ruficornis, Fabr., Ent. Syst. ii, p. 219. Pepsis ruficornis, Fabr., Syst. Piez. p. 215. Beauv., Ins. p, 94. pi. 2, fig. 1. St. Farg. and Serv., Ency. Meth. x, p. 04. Dahlb., Hym. Eur. i, p. 119. St. Farg., Hym. iii, p. 480. Cresson, Proc. Ent. Soc. Phil, iv, p. 134. % 9 . — Black, with a very brilliant purple or violet reflection over the body, legs and wings ; antennae bright orange-yellow, the two ba- sal joints black ; metathorax transversely striated, with a finely im- pressed channel down the middle ; wings uniformly blackish-fuscous, with a very brilliant purple or violet reflection. Length 7 — 14 lines. Hah.—Qxxhsi, (Coll. Am. Ent. Soc). Six 9 1 seven % specimens. IG. Pepsis ornata. Pepsis ornata, St. Farg., Hym. iii, p. 486. Guer. LaSagra's Hist. Cuba, Ins. p. 761. Cresson, Proc. Ent. Soc. Phil, iv, p. 133. Pepsis terrninata, Dahlb., Hym. i, p. 120. % $ . — Black, velvety, with a rich purple or violet reflection over the body, legs and wings; head and thorax sometimes tinged with greenish; antennae brown-sericeous, black at base; metathorax trans- versely striated, channeled down the middle and slightly truncate, the truncation transversely striated ; wings dark fuscous or black, purple or violaceous, blackish at base and whitish at tip. Length 12 — 24 lines. 7/a&.— Cuba, (Coll. Am. Ent. Soc). Four $ , five % specimens. 1 7. Fepsis prismatica. Pepsis prismatica Smith, Brit. Mus. Cat. Hym. iii, p. 200, %. '■'■Male. Length 10 lines. — Black; antennae of an orange-red, hav- ing three or four of the basal and apical joints fuscous; labrum, man- dibles and palpi, nigro-fuscous; the entire insect exhibiting in ditt'er- eut lights beautiful prismatic colors, of blue, purple and violet; wings AMERICAN HYMENOPTERA. 149 nearly black, with a slight blue and green iridescence; metathorax transversely strigose ; abdomen subpetiolate." Ilab. — ''Mexico." Not seen. 18. Pepsis amethystina. Sphex amethystina, Fabr.. Ent. Syst. ii, p. 2]0. Pepsis amethystina, Fabr., Syst. Piez. p. 215. Beauv., Ins. p. .'^>S, pi. 1, fig. 2. "Obscure blue; head, mandibles, antennae and legs black ; abdomen subscssile." llah. — " St. Domingo." Not seen. Mr. Smith (^Brit. 31us. Gat. Hym. iii, p. 199) gives the above first two references also to a Pompilus amethystinus from Brazil, {ib. p. 148j. 19. Pepsis saphirus. Pepsis saphirus, Beauv., Ins. p. 39, pi. 1. fig. 4. ■" Blue, antenuje yellow." JTab. — "St. Domingo." Not seen. 20. Pepsis obscura. Pepsis obscura, St. Farg., Hym. iii, p. 490. Smith, Trans. Ent. Soc. London, .3d series, i, p. .36. ^'■Female. — Antennae black, [tips yellow — Smitli]; head and thorax bluish-black, changing to green on the latter; scutellum strongly elevat- ed ; disk of metathorax transversely striated, with a medial impressed line terminated by a transverse carina; abdomen bluish-black, chang- ing to green ; legs bluish-black ; wings black, violaceous." ^'■Male. — All the parts violaceous-black, changing to obscure green ; wings with a golden-green reflection ; remainder as in the female." Hah. — "Panama." — (^Smith.') Not seen. Since the description of Aporus fasciatus % , given above on page 137, was printed, I have discovered what seems to be the female of that species, the characters of which may be thus enumerated : Aporus fasciatus, Smith. i^t'Hif/A;.— Black, smooth and shining; face, clypeus, base of mandi- bles, cheeks and occiput, covered with a dense silvery pile ; tips of mandibles brownish; antennae short, black, the scape silvery beneath; prothorax, mesothorax behind, scutellum, metathorax, and the whole thorax on the sides and beneath, covered with a dense silvery pile ; a transverse black band on the posterior submargin of the prothorax, the 150 E. T. CRESSON. posterior tnarfrin of whicli is slightly arcuate, nearly transverse; meta- thorax smooth and subconvex above, broadly emarginate behind, leav- ing the posterior angles prominent and subacute; wings hyaline, the apical margin of the anterior pair fuliginous; the second submarginal cell is much longer than that represented in Fig. 14, (which represents the anterior wing of ^4. duhius of Europe), being nearly twice longer than broad, and receives both recurrent nervures, one near the base and the other near the apex ; the legs covered with silvery pile, the four posterior tibiae and tarsi strongly spinose ; abdomen sessile, con- vex ; first segment entirely silvery ; the apical margins of the second, third, fourth and fifth segments, broadly silvery, and dilated anteriorly on the middle and sides; apical segment black. Length 42 lines; ex- panse of wings 7 lines. ^afe.— Georgia, (Coll. Am. Ent. Soc). One 9 specimen. The following species should follow after Mi/gnimia ustulata, on page 143 : — 3. Mygnimia panamensis, n. sp. Female. — Dark metallic green ; antennje brown, the apical half pale fulvous ; mandibles black ; palpi blackish ; metathorax opaque black, with dense, deep, transverse striae, a central channel, and a lon- gitudinal elevation on each side behind the stigmata ; wings blackish- fuscous, the apex whitish ; legs black, with bluish-green reflections, anterior tibiae and tarsi brownish, posterior tibiae serrated on the exte- rior edge; abdomen shining, green, with a faint bluish reflection at base; apical segment brownish, pilose. Length 14 lines. jya6.— Panama, (Coll. Mr. E. Norton). One 9 specimen. This may not belong to Mi/(jniviia, as the first recurrent nervure does not quite unite with the second transverso-cu- bital nervure. AMERICAN COLEOPTERA. 151 Description of a new PSETJDOMORPHA from California, with notes on the Pseudomorphidae. BY GEO. H. HORN, M. D. [Communicated June lOtli, 18(>7.] The speciea described in the present paper was found by myself in Owen's Valley, California, on the flowers of the Lupin (Astragalus). It was subsequently collected by Dr. Cronkhite, Ass't. Surg. U. S. A., in the same region, and this, with other interesting species, sent me for examination. These insects are not easy to obtain, as they ai'e pro- vokingly agile. The same fact has been noticed in our eastern species by Dr. Zimmerman, of Columbia, S. C, who has occasionally seen a few specimens without being able to catch them. PSEUDOMOEPHA, Kirby. P. Cronkhitei, elongato-ovalis, modice depressa, brunneo-castanea, nitida, vix j)unctata, thorace latitudine duplo longiore, lateribus rotundatis, margiua- tis et margine parce fimbriolata, angulis posticis obtusis, elytris subparallelis, margine parce fimbriata; subtus ferruginea. Long .35. This species may be readily known by its smoothness, being almost entirely free from punctures, except near the lateral margin of the thorax, where but few exist. The thorax is scarcely broader 'than the elytra, slightly emarginate in front, truncate behind, sides ciliate with short hairs, margin broader anteriorly. Elytra impunctured, subpar- allel, slightly ciliate. Beneath ferruginous. The third, fourth and fifth abdominal segments have each a transverse pilose spot near the middle, which may indicate sexual difi'erences. The specimens in my collection, three in number, are all alike and exhibit among themselves no ditt'erences of a sexual nature. I dedicate the species with great pleasure to Dr. Cronkhite, whose liberality has aided me greatly in the study of the Coleoptera of Cali- fornia and Oregon. The discovery of a species of this genus in Cali- fornia is remarkable and adds another fact to the already inexplicable law of distribution of genera in Australia, South America and Cali- fornia. There is no group among the Carabid;ie, as at present recognized, presenting so many anomalies as that to which this insect belongs ; 152 GEO. H. HORN, M. D, consequently diverse opinions have been expressed regarding its sys- tematic position. The most striking peculiarity at first sight is their form. They resemble anything else but Geodephagous Adephaga, while on the contrary, without an examination of the legs, any of the species of Sphalloviorpha or Silphomorpha would be considered aqua- tic entomophaga related to Gyrinus. This similarity has been adverted to by Westwood (^Trans. Linn. Soc. xviii, p. 409), in an interesting paper on relations between various families and orders of insects, in which several new genera and species were described, and those of a form still more removed from the type of Carabidaj than Fsfudomorpha. Adelotopus is, however, the most abnormal, not only in form but also in structure as seen notably in the antennje. The idea that these in- sects should constitute a family apart of equal value with Carabidie, DytiscidfC and Gyrinidoe, has been put forward by Mr. E. Newman, {^Entomolog ist , p. 305, et seq.) without stating any special characters, mentioning only that, as PfteudomorpJia is the first genus described, its characters should be those of the proposed family. Westwood, ]ja- cordaire and others dissent from the opinion of Newman, and prefer to retain the Pseudomorphidte among the Carabidfe as a tribe, though equally out of place wherever it may be interpolated. Certain peculiarities in these insects have been pointed out by Dr. LeConte {Clans. Coleopj. N. A. -p. 15), which. appear to have been overlooked by the European writers such as the form and position of the eyes and the form of the posterior coxae. The eyes are more or less irregular in outline, either truncate on one side or angulated. They are really confined to the upper side of the head ; for the mar- gin of the head appears to dip down under the eye and form a floor to the eye. The margin of this plate is at times thickened, as in Ade- lotopus., and appears to be a canthus dividing the eyes into two, as in Gi/rinus. The error of considering the eyes double is still further aided by the smoothness of this portion of the head under the eyes. ]jacordaire allowed himself to fall into the error of describing the eyes of Addotopns as being divided into two by a slender canthuS. The posterior coxae show considerable divergence from the true Ca- rabideous type, being contiguous on the median line and of a form more nearly resembling the Dytiscidjc. The articular lobe is narrow, and the points with which the thighs are articulated are at the tips of these lobes, and more nearly approximated than in the Carabidae. In the Carabid;T3 the articular lobe is broader, and permits the femoral ar- ticulation rather externally than at the tips. AMERICAN COLEOPTERA. 153 The very narrow separation of the middle coxae, and the connate nientum and gula, are characters not without some value in the isola- tion of the Pseudomorphidae as a separate family. The narrow sepa- ration of the middle coxse is not however a constant character in this family. In the species just described these coxae are as widely sepa- rated as in many species of Platj/nus. The form of the antennae of Adelotopux, and the number of abdomi- nal segments in Ili/ilroporomorpha , though very anomalous characters, cannot assist materially in the establishment of the family, each cha- racter being found singly in the genera named. The principal charac- ter, therefore, will be found in the contiguity of the posterior coxae, and the consequent separation of the metasternum from the abdominal segments. The relationships of the Pseudomorphidae with the Carabidse and Dytiscidae may be thus tabulated : — Legs cursorial. Metasternum attaining the abdomen; hind coxae separated. Antennae inserted on the front Cicindelidae. Antennae inserted under the margin of the front Carabidae. Metasternum not attaining the abdomen; hind coxae con- tiguous. Metasternal parapleurse attaining the abdomen PseudomorphidaB. Metasternal parapleurae not attaining the abdomen. ..Amphizoidae. Legs natatorial. Eyes two; antennae filiform Dytiscidae. Eyes four; antennae irregular Gyrinidae. From the above table it will be seen that the Pseudomorphidae form a link from the Carabidae through Amphizoidae to the Dytiscidae, with undoubted tendencies toward the Gyrinida), and by their removal from the Carabidae tend to render that great family more homogeneous. The Pseudomorphidae are contained at present in five genera, and may be arranged as follows : — Head horizontal; mouth anterior; antennae filiform. Without antennal grooves Pseudomorpha. With antennal grooves. Mentum entire; ventral segments four Hydroporomorpha. Mentum emarginate ; ventral segments six. Posterior angles of jirothorax distinct Sphallomorplia. Posterior angles of prothorax rounded Silphomorpha. Head deflexed, front very convex; mouth inferior ; antennae clavate '. Adelotopus. . In the monographic notice of these insects, {Rev. et Mag. Zool. 1853, p. 395), Westwood unites the first, third and fourth genera, without as- TKANS. AMER. ENT. SOC. (20) JULY, 1867. 154 GEO. H. HORX, M. D. signing any reason, at the same time describing new species which sliould not be included in Pseudomorpha. The two genera, SUpliomorplut and Sphalhmoi'pha, can hardly be considered as distinct, the charac- ters separating them being hardly of more value than as a means of defining generic groups. The whole subject has yet need of a revision, and it is to be hoped that those entomologists who have a full series of species accessible will determine their synonomy, and relieve them from the partial confusion in which they are at present found. The habits of these insects are remarkable. Both our North Ameri- can species live on flowers, and are very agile, while that from South America and those of Australia appear to live under bark. For an opportunity of examining a small series of these insects, I am indebted to Dr. Leconte, to whom all the species in the Cambridge ^Museum were sent by Prof. Agassiz for study and identification. On AMPHIZOA INSOLENS, Leconte. BY GEO. H. HORN, M. D. It is not expected that anything new will be written in the present paper, as the insect has been fully described by Dr. Leconte, (^Froc. Acad, vi, p. 227.) and its systematic position ably discussed, while Dr. tSchaum {Insccten DeutschUinds) reviews the work and expresses a dif- ferent opinion regarding its relationships. As it is very desirable to have all difficulties removed and differences of opinion adjusted, it has been thought advisable to pi-esent tlie subject anew to systematists, in order that the end may be reached. With this view, wood-cuts, care- fully drawn, have been prepared, to illustrate the various external parts. As the habits of this insect have been fully exposed {Proc. Ent. Soc J*h)l., Vol. vi, p. 289), it will be unnecessary to reiterate in the pre- sent paper, except to state that they live as do the ParnidtB, adhering to stones under running water. They are entirely sub-aquatic, and have never been found on land. It was my good fortune to capture a fine series of this insect while traveling in north-eastern California, among the streams tributary to Pit River, itself the larger fork of the Sacramento. Though still a rare insect in collections, it has been AMERICAN COLEOPTERA. 155 thought desirable and advantageous to science to dissect a few speci- mens so that better illustrations could be presented, and its external "• anatomy fully exposed. In the views of the un- der side the sutures have been more distinctly drawn than they can be seen in cabinet spe- cimens. These sutures have been rendered thus distinct by macerating the insect in a solution of caustic potassa, a means so well known to Micvo- scopists as to need no further comment. The accompanying outline view (n) will serve to give an idea of the general configuration of the insect. An excellent figure, illustrative of the sculpture, and from which the above outline was copied, may be found in Vol. ix, of the Pacific Rail Road Explorations and Surveys. Head broad, wider behind the eyes, with a broad longitudinal im- pression each side, epistoma truncate. El/PS small, round and finely granulate. *• Antennse (Ji) eleven-jointed, inserted under the margin of the front^ rather above the base of mandibles, in a manner similar to Loricera^ glabrous, sparsely punctured on the upper sur- ''• face, the terminal three joints smooth, entirely destitute of ("^"^ sculpture. (^_ Lahrum (c) transverse, faintly trilobed in front. ^ — J Mandibles (d) short, obtuse, with a few small teeth and a > ^ slight brush of hair on the inner face. Maxillse (e) entirely corneous, inner lobe with a slight emargina- e. tion internally, and ciliate with spinose hairs in front of and behind the emargination. External lobe corneous not bi-articulate. This lobe appears at all times to be articu- lated beneath the inner lobe, so that from a view in front the insect appears to have double maxillae. Maxillary palpi short, four-jointed, the first joint very small, the second and third longer and equal, the last joint equal to the two preceding together, and thicker. /■ Llfjida ( /') quadrate, filling the emargination of the p«i\wiutf' r\ mentum, broader than long, ciliate on its margins, and ^\ (jy^ without paraglossse. Under surflice with a Y-shaped elevated line. Labial palpi short, three-jointed, supports prominent^ first and se- 156 GEO. II. HORN, M. D. cond joints small, terminal equal to the two preceding. In the accom- panying cut the palpi are pushed farther back than in nature, in order that the individual parts might be better represented. Mentum (jj') large, connate with the gula without trace of suture, f)- entirely concealing the parts of the mouth abo^^e. deeply emar- ginate, with a broad tooth at the bottom of the emargination, lobes obtusely rounded. Lateral sutures of gula distinct. In his work on the genera of Coleoptera, Lacordaire commits the curious mistake of ascribing a totally different form to the ligula I'rom that indicated by the above description ; he says, " languette en forme de T." This mistake originated from a misinterpretation of the meaning of Dr. Leconte, (^Froc. Ac. 1. c.) in the lirst description of the insect, as follows: — "The ligula is large, filling the emargination of the chin, truncate at tip and prominent along the middle and apex, so as to present a form like the letter T." The inner lobes of the maxillae are ciliate internally, and not as Lacordaire says, "lobe interne des machoires non cilie." The above-named author had, however, no opportunity of examining the insect, as no specimens had been sent abroad at the time the above extracts were written. In the above descriptions of the head and parts of the mouth, hard- ly anything can be found in which this insect differs from the Carabi- dae. The large size of the mentum is remarkable, also the absence of the gular suture, a character found only in a few Pseudomorphides and Siagouides,* the former being, however, insects of a very anomalous form, and whose claim to rank as members of the ftimily Carabidae has been doubted by various entomologists. In Metrms more particularly, and in other Carabidae, the mentum is large, broad, and deeply emar- ginate, though never so entirely biding all the parts above it, as in Amphizofi. The antennai are also anomalous in being entirely glab- rous, without pubescence, and only a few punctures on their upper surface. Prothorax narrower than the elytra and in close contact witli them, nearly twice as broad as long, narrower before than behind, sides ob- *The form of mentum among these insects is very similar to that seen in j4/n.jo/ii2oa, particularly i\\a,i oi Enceladus, where the suture is entirely obliterated. In fact, its mentum might well represent an enlarged view of that of ^nyj/u'zoa, excepting in the form of the tooth at tlie bottom of the excavation. Notwith- standing its large size in the Siagouides and Ditomides, the mentum never hides so completely the other' parts of the mbuth, as in Amphizoa. The man- dibles are very prominent in the two tribes mentioned above, and in Enccladas recalling the form met with among the Scaritides, i)articularly Pasiinachas. AMERICAN COLEOPTERA. 157 tusely rounded. Anteriorly eraarnjinate, posteriorly sinuate, with the angles distinct. Above with a longitudinal impressed line, with vague impressions laterally. Prosterninn (/;, front view; /, side view) prolonged, behind the ^- i- cox.Ts broader and flattened, received in an excavation of the mesosternum, meeting the prolongation of the meta- sternum between the middle cox;i3. Coxa? cavities rounded, open behind closed in front by the sternum and epimera, completed behind by the sternum of the mesothorax. Mesosferunm short, separating the middle coxoe, concealed at its middle by the prolongation of the prosternum, side pieces xw, diagonally divided, the epimera alone attaining the coxae. 4__\ Coxal cavities rounded, closed in front by the sternum, '^ laterally by the epimera of the mesothorax and the epi- sternum of the metathorax, and behind by the meta- sternum. Mefasternum broad, truncate posteriorly, side pieces simple, consist- ing of the episterna alone. (hxse broad, separated from the metathorax by a nearly straight su- ture, contiguous in the middle and attaining the margin of the body, cutting off all contact between the metathoracic parapleurae and the abdomen. Ahilomen with six ventral segments, the anterior three connate. The first segment is entirely lateral and the second in contact with the coxa3 at its middle. The second, third and sixth segments are much longer than the others. EUjtra oval, moderately convex, slightly flattened at the sides, hu- meri rounded. Epipleural fold broad anteriorly, suddenly narrowing opposite the hind coxae and not reaching the apex of the elytron. Scutellum moderate, triangular. Under wings well developed, though probably never used, as the elytra are in close contact and, it is proba- ble, totally inseparable by the action of the insect. Legs slender, femora slightly thickened, tibiae with two small termi- nal spurs. Front and middle tarsi with the first four joints small, sub- equal, the terminal joint longer. Posterior tarsi with the first and last joints longer, the intermediate short and equal. Claws small, simple. The joints of the tarsi are rounded beneath, and have (excepting the last joint) a small pubescent spot on each side. The characters, as above given, drawn from the lower portion of the 158 OEO. H. HORN, M. D. body, ])rcf;eiit but little of special importance, excepting the large size of the posterior coxtB, their contiguity on the median line, and the straight line separating them from the metasternum. It is curious that another error should have crept into the copied description of l^a- cordaire,as he states that tliese coxic are not contiguous on the median line of the body. There would seem to be but little doubt that this insect should oc- cupy the systennitic position assigned it by Dr. Leconte. although two eminent entomologists have, the one (Dr. Schauni) called it an aber- rant Carabide, the otlier (Prof. J^acordaire) assigned it a position among the Dytiscidtw, in a subfamily of equal value to Haliplid;^ and Pelobiidas. Doth opinions appear untenable by a review of the cha- racters above given. With the DytiscidiB, Ainphizou lias but little in common, excepting the large size of the posterior coxte. The parts of the mouth, as stated by Schauin, have but little analogy to those of I)ytiscid;x). The broad posterior coxte separate it very easily from the Carabides, while at the same time, they are bounded anttn'iorly by a straight line, and cut ott" entirely the metasternum from the abdomen. It is not, however, on one character that the separation iA' Amphkun from the two named fam- ilies must depend. 'J'he whole conformation presents anomalies found singly in aberrant members of either family; but that the con- centration of so many should occur in one insect is remarkable. Either this insect should link the two families into one, or it should form a family apart. The latter course would, therefore, seem the more ra- tictnal. Dr. Schaum has seen considerable resemblances to the Tenebrionidae in its structure. There may be some resemblance in form (as to N)/c- (fypetus) or even in its sculpture. Mc.trius has also been said to resem- ble some of the same family. It is difficult, however, to perceive any real structural similarities. The antennae do not resemble those of the Tenebrionidic as Schaum insists. There is a total absence of pulicscence, sensitive pores and spongy patches, such as are found on the terminal joints in that family. Jlere the case is reversed and the terminal joints are entirely smooth and glabrous. The similarity of the coxtxi, particularly the posterior, to those of Tenfijria is not very evident. The sexual distinctions are not well marked, the female is broader and rather more robust. AMERICAN COLEOPTERA. 150 Notes on the ZOPHERI of the United States. BY GEO. H. irURX, M. D. The occurrence of several new species of the genus Z(>])heruii Ims suggested the propriety of bringing into one paper the descriptions of the other species known from the western parts of our territory. The form of these insects is so well known as hardly to need any general description, and so peculiar as to enable them to be distin- guished from any other Tenebrionidae. They are all of moderate or even of large size, elongate, convex, and furnished with a tegument so hard, as to be with difficulty perforated by the ordinary cabinet pin. The species from Mexico are whitish above, with elevated subopaque black spots, varying in size according to the species. Those from our own country, (excepting nodulosus), are all black, and readily distin- guished by the sculpture of the elytra. The last ventral segment is also ornamented with tubercles, though not varying sufficiently among the several specie.s as to be of any value in indicating specific differ- ences. This same style of ornamentation obtains in all the Zopherini, and disappears almost entirely in the next group, Usechini. With one exception {Juurdanu Salle) all the bicolored species have the apices of the elytra quadrituberculate, the black species are bitubercu- late. The apices of the elytra in all the species have a deep groove on each side, making the suture appear elevated, and bounding the tuber- cle on the inner side. ZOPHERTJS, Gray. Z. nodulosns, elongate, convex. Head black, subopaque, finely and sparsely punctured, and with a triangular, white occipital spot. Thorax convex, nearly as broad as long, anteriorly emarginate, with the angles rounded, posteriorly subtruncate, sides anteriorly scarcely sinuate, posteriorly sinuate and crenu- late, much narrower behind than before; above white, with a central black stripe much narrower at its middle, and with a few lateral black spots sparsely jilaeed. Elytra elliptical, convex, sides moderately rounded, base slightly emarginate, with the angles distinct; above white, with elevated, smooth, black spots, arranged as follows ; — a sutural row of spots not distinct from eacli other, a subsutural row of four or five larger spots, two central rows of four or five spots each, and a marginal row, a few very small black spots in rows repre- senting the strise, of which the rows of larger spots mark the interspaces. Aj)ex four-tuberculate. Legs black. Beneath black, coarsely punctured, with the side pieces of the metathorax and the sides of the second and third abdominal f^cgments white. Length .80—1.10 inch. .•^oMuif, Ann. Ent. Soc. France, V, 42. IGO GEO. H. HORN, M. D. This species is very abundant in western and south-western Texas, whence specimens are sent in every collection made. It resembles closely several Mexican species, though readily distinguished by its less convex form, and the fewer number and less elevation of the black tubercles. Z. concolor, black, moclerately shining: liead sparsely punctured: thorax moderately convex, sparselj' punctured, sides anteriorly rounded, posteriorly erenulate, base subtruncate, much narrower than at apex ; elytra elliptical, sides moderately rounded, base slightly emarginate, humeral angles distinct, surface deeply wrinkled, forming very convex tubercles, with a tendency to a longitudinal arrangement; apex of elytra forming two tubercles, separated from the sutural elevation by a deep groove. Beneath black, coarsely and densely punctured. Length .6 inch. Leconte, Ann. Lye. V, 130. Found near Santa Fe, New Mexico, by Mr. Fendler. This species is at present rare in collections, the type being the only one at present known. Cabinet of Dr. Leconte. Z. guttulatus, l)lack, subopaque; head very sparsely punctured ; thorax sparse- ly punctured, moderately convex, anteriorly emarginate, posterior margin sub- truncate; elytra oval, convex; sides rounded, apex bituberculate, tubercles at- taining the sutural elevation, groove distinct, surface suboj^aque, with smooth, elevated spots arranged in eight or more longitudinal rows; spots more or less rounded, distinct from each other. Beneath subo])aque, sparsely though rather coarsely punctured. Long .64 — .77 inch. This pretty species occurs in south-western Texas, whence two speci- mens were brought by Mr. E. T. Cresson, and are now in the Collec- tion of the American Entomological Society. This may be distin- guished very readily from all our other species by the peculiar, almost sericeous, appearance of the surface above and below, and by the form and arrangement of the smoother elevated spots. These arc more dis- tinct than in tristis and more distantly placed, at the same time pre- serving a nearly rounded form ; they are less convex than in concolor and not nearly so glossy. The interspaces are distinct, and deep opaque- black in color. On comparison with trutis, and which it would be the more readily confounded by descriptions, the thorax will be found much less convex, the sides more distinctly angulate, and with compa- ratively few punctures on the upper surface. The elytra are more rounded on the sides and more convex above. The apical groove is also much shorter. In outline the elytra more nearly resemble those of concolor. From concolor this species may be distinguished by the peculiar appearance of its surface, and by the less convex, less shining- elevated spots, and by the distance at which they are placed from each other. AMERICAN COLEOPTERA. IGl Z. tristis, black, subopaque; head coarsely and sparsely jmnctnred : thorax slightly longer than wide, coarsely and sparsely punctured on the disk, more densely at the sides; sides subangulate before the middle, posteriorly crenulate. Elytra elliptical, moderately convex, base slightly emarginate, angles distinct, surface roughened, with slightly elevated, smoother tubercles, on one side of each a fine puncture, from which arises a minute yellow scale-like hair; apex of elytra bituberculate, suture elevated at apex, groove short. Beneath as in concolor. Length .55 — .85 inch. Lkcoxtb, Ann. Lye. V, 130. This species resembles concolor more decidedly than it does any other species, but may be readily distinguished by the characters above given. The smooth elevated spots have a stronger tendency to a linear arrangement, the interspaces are well marked, and the elevations them- selves much less convex than in concolor. The humeral angles are more distinct, and the space between them distinctly broader than the base of the thorax. The groove at the apex of the elytra is shortened behind, allowing the tubercles and the sutural elevation to join. In some specimens there is also a slight longitudinal thoracic impression. This species is not rare in Arizona. In my .sojourn in that region, eighteen individuals were found. Those captured at Fort Grant lived under the dead bark of Mesquite, others on the Maricopa desert, were under the dead trunks of Cereus giganteus, another was found at Yu- ma in my tent. A short time since, I received a specimen, from which the larger measurement was taken, from Mr. Wm. M. Gabb, collected from near the upper end of the peninsula of Lower California. This differs in no other particular than size, from the specimens from Yuma and Arizona. Z. opacus, black, opaque ; head finely and sparsely punctured; thorax longer than broad, sides moderately rounded in front of the middle, posteriorly crenu- late, base subtruncate and narrower than the apex; above coarsely and densely' punctured; elytra elliptical, moderately convex, with very fine granular eleva- tions arranged in irregular longitudinal series, with a fine puncture at the base of each granule, from which arises a very short scale-like hair. Apex of elytra bituberculate, sutural elevation prolonged, groove deep. Beneath sculjjtured as in the two preceding species. Length .85 inch. This species may be readily distinguished from any others of the genus known, by the peculiar sculpture of the elytra. The punctures of the thorax have, in many instances, a slight elevation of their mar- gin on one side, giving a granulated appearance to the surfoce. The humeral angles of the elytra are le.ss distinct in this than the two pre- ceding species, and the bases of the thorax and elytra are equal. This species is found in Nevada, probably near the southern boun- dary. For the specimen in my possession I am indebted to Mr. John Akhurst, of Brooklyn; another remains in his cabinet. TR.\NS. ASIER. ENT. SOC. (21) JULY, 1867. 162 GEO. H. HORN, M. D. Through the kindness of Mr. Ulke I have been permitted to exa- mine a specimen of this species from his cabinet. It differs from the type only in being smaller, and with the granules less distinctly marked. This obliteration of sculpture is probably the result of age in the spe- cimen. While at Fort Tejon, California, I had abundant opportunity of examining the Phloeodes of various ages, and found that while in those of the present season were sharply sculptured, and the granules very distinct, those of the preceding seasons were comparatively smooth. As all these insects live under bark on logs and stumps, it is probable that the smoothness of some is merely the result of mechanical action. Z. gracilis, black, shining; head finely and sparsely punctured; thorax fine- ly and sjiarsely punctured, sides subangulate, before the middle slightly sinu- ate, posteriorly finely crenulate; base narrow, subtruncate ; elytra elongate, oval, surface very slightly rugose, and with striae of fine, rather distant punc- tures, in each of which is a short, scale-like golden hair. Apex bituberculate, groove broad. Prothorax beneath coarsely and densely punctured. Abdomen sparsely punctured. Length .63 inch. This species may be readily distinguished by its slender form and almost total absence of elytral sculpture. It is more glossy than any of the already described species. The bases of the thorax and elytra are nearly etjual in width. In all of the preceding species the basal margin of the thorax is slightly elevated, and with a slight groove in front of the elevation 5 this totally disappears in the present species. This species inhabits Arizona, in the neighborhood of Fort Whipple, where it was collected by Dr. Coues, who placed it at the disposal of Mr. Ulke, to whom Dr. Leconte is indebted for the only specimen of this fine species now in his cabinet. In order to render the species now known, easily determinable, the following synoptic table is added : — Elytra quadrituberculate at aj^ex nodulosas, Solier. Elytra bituberculate at apex. Elytra with smooth elevated tubercles. Tubercles round, very convex, approximate and shining concolor. Lee. Tubercles round, flattened, distinct and subopaque...guttulatus, Horn. Tubercles elongate, flattened, moderately shining tristis, Lee. Elytra finely granulate opacus, Horn. Elytra finely punctured gracilis, Horn. AMERICAN COLEOPTERA. 1G3 Descriptions of new Genera and Species of Western SCAKAB^ID^, with notes on others already known. BY GEO. H. HORlSr, M. D. PH.ffi:OCHROUS, Casteln. P? Behrensii, elongate-oval, blackish-brown, moderately convex and shin- ing. Head paler in front, densely and coarsely punctured. Thorax twice broader than long, narrowed in front, above moderately convex, sparsely punc- tured, anteriorly emarginate, sides margined, moderately rounded, base sinu- ate, angles obtuse. Elytra oval, convex, margin slightly thickened, above stri- ate, with striae coarsely and closely punctured, interstices slightly convex, with a single row of minute punctures. Body beneath jjaler, scarcely punctured. Femora thickened; anterior tibise crenulate and with three large teeth on the outer edge; middle and posterior tibise thickened at tip, obliquely truncate, and with rows of sjiinose hairs. Length .4 inch. Breadth .22 inch. I refer to Phseochrous Casteln. (^Si/phodes Westw.) an insect from California, (in the Cabinet of Henry Ulke, of Washington,) though not without suspicion, that it may constitute a distinct genus, differing from the descriptions of Phseochrous by such slight characters, that, without reference to specimens, I am unwilling to separate it. The epistoma is broadly truncate, labrum very short, transverse, slightly emarginate. Mandibles projecting slightly beyond the labrum, >V\:^n;^ giving the front a bilobed appearance. The antennoe are ^ //55r?^ jjgj^j.]y jjg in pjiseochrous, vfiih the eighth joint very large 'and concave, almost entirely hiding the ninth and tenth joints, which are much shorter, and are spongy, except slightly corneous at base ; scutellum moderate, apex rounded. The four hinder tibite are rather suddenly thickened at apex and obliquely truncate, and with three rows of spinous hairs. The tarsi are somewhat shorter than the tibite, the last joint longer, with strongly curved, equal claws. The discovery of this insect in California is remarkable, as it affords an analogue of the Hi/hosurus of our Eastern States, itself being an emigrant from Europe. It is indeed possible that the insect just de- scribed may have been imported from the East Indies to California, as the commerce between the two countries has already assumed some magnitude. I have in my collection also a Cerambycide, found by Mr. Gabb, in the Coast Range south of San Francisco, undoubtedly identical with an Australian species, and with the knowledge of the introduction of this and other insects by transportation in ships, I have supposed that even P? Behrensii may be really a foreigner to our 1G4 GEO. H. HORN, M. D. shores. The species of PJipeochrnus live on decomposing anira:tl sub- stances, and it is possible thiit, like some Dennesfes, it may have found lodgment aboard ship in material suitable for its subsistence. I dedicate the species to Dr. Jas. Behrens, of San Francisco, in ac- knowledgement of the interest he has shown in the advancement of en- tomological science. DASYDERA, Lee. D. Cooperi, brassy-green; head densely and coarsely punctured, front sparse- ly clothed with erect yellow hairs; thorax subquadrate, sides moderately rounded, anterior margin truncate, posterior slightly rounded, with the angles rounded; above coarsely and densely punctured, with suberect yellow hairs and a slight longitudinal impression. Elytra testaceous, lateral margins eon- verging strongly, contiguous along the first two-thirds of the suture, then de- hiscent, apices moderately rounded, above clothed with short, black, recum- bent, bristly hairs, arising from rather densely placed punctures. Beneath brassy-green; abdomen paler, clothed with yellowish hairs. Antennal club and tarsal claws testaceous. Length .40 inch. Keadily distinguishable from the other two species of this genus by the characters above given. The elytra extend to the suture between the last and penultimate abdominal segments. The lateral tooth of the anterior tibia is also well marked. I dedicate this species to Dr. J. Gr. Cooper, of Santa Cruz, Califor- nia, to whose liberality I am indebted for this and other valuable spe- cies. It is from near Sacramento, California. LICHNANTHE, Burm. L. canina, head obscure, brassy-green, coarsely and confluently punctured, clothed at the middle with yellow, and laterally with shorter black, suberect hairs. Thorax brassy-green, slightly broader than long, narrower anteriorly ; sides very slightly rounded ; apex truncate, base feebly rounded, posterior an- gles slightly elevated, above coarsely and densely punctured, with yellow erect hairs. Elytra dark testaceous, with two rows of paler spots; sides slightly convergent, contiguous along the anterior half of the suture, posteriorly strong- ly divergent, apices rounded, above finely and densely punctured with recum- bent black hairs. Margin paler, with short yellow hairs. Beneath obscure brassy-green sparsely clothed with yellow hiiir ; antennal club, tarsi and tij) of abdomen obscure testaceous. Lengih .4S inch. Readily distinguishable from our other species by the characters above given. The epistoma is also strongly nuirgincd on the sides. The fnmt has two elevated lines continuous with the margin of the epistoma, which converge and meet on a line with the eyes. The por- tion of the head thus enclosed is brassy-green and clothed with yellow hairs, the remainder of the front is covered with shorter black hairs. The tln)rax is less coarsely punctured than the head, which appears to be almost wrinkled transversely. AMERICAN COLEOPTERA. 1G5 The elytra are still more finely punctured, and tliougli somewhat longer in this species than in vulpiim and yet shorter than in lupina, they are also more divergent along the suture than in either of the pre- ceding species. This species is, without doubt, identical with that mentioned by Doubleday as having occurred in Oregon, though pro- bably considered by him as identical with lupina. Occurs near Fort Klamath, Oregon. For this interesting addition to our western fauna, I am indebted to Mr. Wra. M. Gabb, Palaeontologist Cal. Geolog. Survey, whose kindness in placing his collection at my disposal, lias al- ready been acknowledged. ACRATTJS, nov. gen. Head elongate, epistoma trapezoidal, narrower anteriorly, concealing the parts of mouth beneath, separated from the front by a sinuous im- pressed line, anterior edge margined and notched. Labrum small, transverse, not emarginate. iMandibles short, coriaceous on the inner margins and ciliate internally at apes. Maxillae elongate, ciliate with curved spinous hairs at apex. Palpi long, last joint fusiform. jMen- tum trapezoidal, longer than broad, narrower behind, anterior angles rounded. Ligula distinct from the mentum, coriaceous and deeply bilobed. Palpi very small, last joint somewhat longer. Antennae ten- jointed, first and second thick, third — seventh small, eighth — tenth forming a suboval mass. Abdomen six-jointed, joints, except the last, connate. Pygidium exposed. Tarsi slender, claws small and divided. Anterior tibiae tridentate externally, with a small spine internally, mid- dle and posterior tibiae bispinose, the latter broad and triangular, and with one transverse ridge. The accompanying wood-cuts represent magnified views of the parts of the mouth, an antenna, and an anterior leg and one of the tarsal ^_^ '/I claws of ArratHs. The "^ 1^ ^ parts have, however, been ^ ^=^2> ^I'^S^^'fi^d in different de- 2^ grees, as will be seen by ■^ — -^ a comparison of the men- tum and the maxilla ad- joining it. In nature the hairs at the tip of the maxilla are even more curved than represented. Both claws on all the feet are deeply cleft to within a third of the base, the inferior portion being a fourth shorter than the superior. This genus recalls strikingly the characters of Chnaunanfhux of the Sericoidini, and from the description, by which it is alone known to 1G6 GEO. H. HORN, M. D. me, resembles it even in specific characters. The connate ventral seg- ments, however, forbid its entrance into the group, unless that charac- ter should have escaped notice in tlie genus above named. The anten- nae are ten-jointed in the present genus and but nine-jointed in Chnan- nantliHs, though this would hardly warrant generic separation without the presence of other characters. I place the genus provisionally among the Oncerini of Leconte, although equally out of place by the presence of the anterior tibial spine. As in Oncerus and Lasiopiis the abdomen is rather small and the segments connate. The position of the Oncerini among the Laparostict Jlelolonthidae, seems somewhat objectionable, as the spiracles in Oncerus are placed ''on the dorsal in- flexed portion of the ventral segments," (Lee. S//nopsis Mdolonthuhr, Jour. Acad., 1856,) as in the genuine Melolonthidae, while the connate abdominal segments of Oncerus^ Lasiopus and Acrafus is a character at variance with the Glaphyrini, to which the division of Laparostict Melolonthidne of Leconte, for the most corresponds. These genera may form a sub-tribe of Melolonthidae near the Sericoidini, in the position originally assigned them in the monograph above cited, or Acrafus may be placed among the Chasmatopterides after Chnatinantlius. A. flavipennis, black, slightly glossy; head black, rather coarselj' and dense- ly punctured, narrowed in front. Thorax black, broader than long, base and sides rounded, anteriorly emarginate, less densely punctured than the head; posterior and lateral margins ciliate with whitish hairs. Head and thorax with short suberect hair. Elytra yellow-testaceous, oval, sparsely punctured, and with a short yellow hair arising from each puncture. Mentum with a brush of yellow erect hair beneath. Feet yellowish. Length .15 — .18 inch. The under surface of the insect varies in color in different individu- als, in some being entirely black, in others with the abdomen yellow- ish. This insect is found in tolerable abundance in April, on the flowers of Larrea mexicanaj on the sandy desert east of Antelope peak, and on the banks of the Gila River, Arizona. PLECTRODES, nov. gen. Head quadrate. Epistome broad, thickened in front, concave above, separated from the front by a slightly raised line. Labrum distinct, emarginate. Mandibles thick, obtuse, not prominent. Maxillto short, with two or three obtuse teeth at apex. l*alpi moderate, first joint small, last joint longer than second and third together, deeply channel- ed on its outer face. Mentum quadrate, concave, sides rounded. Li- gula short, transverse, connate with the mentum, corneous. Palpi short, last joint rather larger. Antennae ten-jointed, first joint equal AMERICAN COLEOPTERA. 167 to half the scape, thicker ; second joint transverse; third — seventh closely connate; eighth — tenth forming an oval mass. Anterior coxa3 moderately prominent, prosternum not prolonged. Metathoracic para- pleurfe moderate, epimera triangular. Segments of abdomen distinct, penultimate joint rather longer. Anterior tibia? tridentatc externally, ■with a spine on the inner side. Middle and posterior tibiae with a transverse ridge terminating in a slight spine. Posterior femora thick- ened. Tarsi equal to the tibiae. Claws dissimilar, the anterior claw armed with a long tooth from near the base, posterior claw with a short slightly emarginate tooth near the base. Penultimate dorsal and ven- tral segments connate. Spiracle placed on the middle of the line of the suture, and connected by a groove with the suture between the py- gidium and propygidium. Figures 1 and 2 represent respectively the maxilla and palpus and the claws of the tarsi of Plectrodes. In the first it will be seen that the palpus is longer than the maxilla, and with the first joint very slender as compared with the others. The last joint is oval, slightly curved, and with the deep groove mentioned in Figure 1. Figure 2. the above diagnosis. The second is a re- presentation of the tarsal claws of the right anterior tarsus, the claws ^'^^' are the same, however, on all the feet and in both sexes. The anterior claw is much larger and with a strong tooth, its outer face is also sul- cate in the manner above indicated. P. pubescens, light testaceous brown, slight!}' shining, robust, convex above : liead coarsely and densely j^unctured. with short, yellow, suberect hairs arising from the jjunctures. Thorax broader than long, convex, anteriorly emarginate, 2"iosteriorly broadly lobed; sides strongly rounded, coarsely punctured above, and clothed with suberect yellow hairs. Scutelluni moderate, triangular, with rounded sides. Elytra convex, more finely punctured with very short, recum- bent, yellow pubescence. Body beneath clothed with long yellowish-white hairs; abdomen with shorter pubescence. Legs slightly fimbriate with hair. Length .70 — .85 inch. Occurs rather abundantly at Visalia, California, whence specimens were sent me by Mr. S. W. Marple, They fly among the oak trees of that region and are attracted by light at night. Genus related to Ilypotrkliia Lee, though without any similarity whatever of form. The former resembling Tant/proctus somewhat, while the present genus is almost a counterpart of certain species of Plcctris, in form, color and pubescence. By the peculiar sculpture of the last joint of the maxillary palpi, these two genera seem to be re- lated to the Tanyproctini, though in neither do we find the dilatation 168 GEO. H. HORN, M. D. of the tarsal joints of the male. The anterior claws of the front and middle tarsi of Jlt/potrichia have a broad tooth, free, except at base. The anterior claw of the posterior tarsi has a slight dilatation at base. The tribes of Scarabaeidse, in the vicinity of the Sericoidini, have need of a thorough revision. The position of the last spiracle, whether in or out of the line of the suture between the penultimate dorsal and ventral segments, appears to be a eliaracter of some value, as also the presence of a groove leading backwards from the spiracle toward the last dorsal suture. The genus is placed provisionally with Hi/potrichia among the Seri- coidini, with the hope that renewed observations on larger series of ge- nera may afford a better clue to its true relationships, COTALPA, Burin. For a long time the only known species of this genus was ranked among the AreodjB, Kirby being the first to indicate generic differ- ences. The typical species appear to have an extensive range, being found over nearly the whole region eastward of a line drawn midway between the Rocky 3Iouutains and the Mississippi River. In 1852 Prof. Haldeman described a second species from Utah; lately Dr. Le- conte has made known a third, from a point still farther westward, New Mexico, and while in San Francisco, during the first few days of my stay there, I was surprised at receiving a fourth species from the Southern Coast Range. Subsequently other specimens were collected near the base of the South-eastern Sierras, again in Owen's Valley, and finally along the mountainous region between Temescal and the Lajruna grande, on the road towards Fort Yuma. C. ursina, bluish-black; head and thorax coarsely and densely punctured ; thorax convex, sides strongly rounded, narrower anteriorly, base broadly lobed, elytra broadly oval, brownish testaceous, coarsely punctured. Beneath bluish- black, tibisB paler. Length .95, % ; .62, 9 , inch. The clypeus is parabolic, slightly margined in front. The head and thorax are rather densely clothed with suberect yellowish hairs, the hairs of the elytra are much shorter, recumbent and more sparsely placed. Reneath the body is also densely clothed with long hairs, particularly on the sides of the metasternum. The elytra vary some- what in color, among the specimens from different localities. Those from the maritime slope of California are brownish testaceous, those from the mountain regions of the south-eastern portion of the State are much lighter in color, while a unique from Owen's Valley is orange- red. The first and last regions furnished specimens with much more AMERICAN COLEOPTERA. 169 pubescence. These captured by myself near Teniescal were almost en- tirely deprived of the hair on the thorax and elytra, and are much less densely and coarsely punctured. I can find no differences to warrant specific separation among rny specimens, though the extremes differ greatly in size and in sculpture as above indicated. The genus CotaJpa may be separated into two sections, according as the metasternum is produced or not between the middle coxae. Metasternum conical, prominent between the middle coxae. Thorax scarcely punctured lanigera, Linn. Thorax coarsely punctured puncticoUis, Lee Metasternum short, obtuse, not produced. Thorax coarsely not confluently j)unetured: hairs yellowish ursina, Horn. Thorax coarsely and confluently punctured : hairs giey granicoUis, Hald. In the above table it will be seen that two species have the meta- sternum prolonged forward, so as to be distinctly seen between the middle coxae and even in front of them, this spine being at the same time in the plane of the rest of the metasternum and without any de- pression of its point. In the last two, however, this process is reduced to a mere tubercle below the plane of the metasternum, and is not at all prominent, and never projects beyond the coxae. The species of the first group may be distinguished from those of the second by their greater convexity, more glossy appearance and less elytral punctuation, while from each other no other characters are needed than that given in the table. The epistoma of puncticoUis is relatively much longer and more convex than lanigera. The two species of the second group resemble each other in form. The thorax of granicoUis is, however, metallic-green and very coarsely and confluently punctured, and clothed with erect whitish or greyish-white hairs. In ursina the thorax is much more finely punctured and with the punctures distinct, the hairs are longer and yellowish ; the color of the thorax is bluish-black. ERRATUM. Page 168, line 16, for "aiipear" read "appears." TRANS. AMER. ENT. SOC. (22) JULY, 1867. l70 AMERICAN COLEOPTERA. EXPLANATION OF PLATE III. Fig. 1. — Phseochroux Behrensii, Horn. San Francisco, Cal. Fig. 2. — Acratus Jlavipennis, Horn. Arizona. Fig. 3. — Lasiopus ferrugineus, Lee. (Synopsis of the Melolonthi- dse of U. S., Jour. Acad. 1856, p. 282.) Tlie ungues of this insect are simple and the tarsi very much longer than the tibiae. The ante- rior tibia is without spine. Antennoe nine-jointed, palpi slender. Cly- peus rounded, concave and subemarginate at apex. Its surface is mo- derately glossy and ferruginous in color, coarsely punctured and with sparsely placed short hairs, the margin is fringed and the under sur- face with longer hairs. Ringgold Barracks, Texas. Fig. 4. — Oncerus floralis, Lee. (Loc. cit. p. 28H.) As in the pre- ceding species the anterior tibiae are without spine, the tarsi long and the femora thickened. Clypeus flattened, parallel, and with a lateral incisure and transverse suture forming a double clypeus. The claws are deeply cleft as in Acratus. The head and thorax are shining black, the elytra brownish testaceous and sparsely clothed with short pale hairs. Vallicito, California. Fig. 5. — Hypotrkhia spi&sipcs, Lee. (Class. Col. N. A., 137.) Fig. 6. — Plectrodes p7ibescens. Horn. Visalia, Cal. Fig. 7. — Macropnus crassijtes, Horn. (Proc. Acad. 1866, 307.) Though not mentioned in the preceding Papers, I introduce this in- sect for the opportunity aiforded of figuring it. A view of its upper surface hardly affords any difference of outline from the common Areo- dae, except in being rather more suddenly broader. Honduras. Fig. 8. — Fseudoviorpha Cronkhitn', Horn. Owens' Valley, Cal. AMERICAN LEPIDOPTERA. 171 DESCEIFTIONS OF AMERICAN LEPIDOPTERA.— No. 2. BY AUG. R. GROTE and COLEMAN T. EOBINSON. [Communicated July 8, 1867.] Family, LYCAENIDAE. THECLA. Fabr. Thecla lorata, n. s. 3f(de. — Allied to Thecla falacer, Bdv. and Lee. Head, black; eyes, circled narrowly with white; antennae, black, annulate with white, the "club" entirely black. Body, above, black, the longer scales on thorax and abdomen with a paler somewhat brassy tinge. Beneath, the abdomen is whitish, the under thoracic squaniation is blackish- grey ; legs mostly whitish, blackish outwardly, subannulate, the tai'si touched with fuscous inwardly. Upper surface of wings of a uniform black or blackish, with a sub- dued brassy-brown reflection which becomes prominent in certain lights. An ovate sexual spot on the disc of primaries. Secondaries with two very unequal tails, as in T. falacer, the lower the longer, fringed with white. Base of the fringes, from anal angle to the lower "tail," white, and at this place is a narrow, white, internal line in one specimen. Between the " tails," the fringes, which elsewhere are dark, are tipped with white. Under surface somewhat paler than upper, })rownish-black. An ex- tra basal common streak, composed of powdery dark blue scales, runs across both wings ; this is slightly irregular, and is lost iuferiorly among the longer scales which clothe the internal margin of the se- condaries. Two short white lines on the disc of primaries enclosing an incomplete darker shaded spot or space as in allied species. Be- yond, an interrupted, extra discal, semilunated white line, narrowly edged within by blackish scales and preceded by dark interspaceal shadings. An incomplete bluish-white, subparallel, subterminal line, edged outwardly by blackish scales. Secondaries with two short par- allel white lines on the disc, enclosing an analogous space to that on disc of primaries. An extra discal semilunated and interrupted white line as on primaries, preceded by dark interspaceal shades; these are faintly edged within in one specimen by white scales, so that here the white line may be said to be geminate, enclosing a dark shade; on the subcostal interspace the series is interrupted, the lines being severed and brought nearer to the base of the wing, a detached spot is thus 172 GROTE .t KOBINSON. formed as is usual. A subterniiiial bluish-wliite line, forniirip; promi- nent lunules on the interspaces interiorly, edged outwardly with black ; along anal angle the black scales are followed by a fulvous streak, this by first white then black scales. Outside of the black scales edging the subterminal line on the next interspace above, is a patch of pow- dery blue scattered scales extending to the external margin ; on the interspace above is a distinct fulvous crescent, succeeded by black scales on the margin; the fulvous scales are faintly continued on the uext succeeding interspace, which also shows a few scattered bluish- white scales. A narrow white line lies directly on the margin. Expanse, 1.20 inch. Length ofhocli/^ 0.60 inch. ITahitat. — Atlantic District. (Virginia !) We have two individuals before us, apparently both males, and dif- fering slightly from one another as noticed, and in that the sexual dis- cal spot of the primaries is darker than the ground color of the wing- in one specimen, which at first we regarded as the female. Both agree in having the common internal line of dark blue atoms, a character which separates this specias at once from T. falacer, Godt. sp., and T. aeadiea, Edwdx.^ its near allies. From Thecla CALANUS, Wcstv-nod^ (^RuMlcus armafna Cidaims^ Hiibn., Sml., Thecla Edivarddi, \. Saund ,) this species is equally dis- tinct. Contrary to Boisduval and LeConte, who cite ■' PapKio ralamis. Hiibn.," as a synomym of T. falacer, Godt., sp., and to Westwood. who gives precedence to Htibner's name, it seems to us that T. calanus and T. falacer are distinct species, the former to be distinguished by its slightly greater expanse, its paler more brownish color above, and by the fulvous marks of the upper surface of secondaries near anal an- gle. The I'emark : "quelquefois precedee en dedans d'une tache fauve peu marquee," Boisd. and Jjec, p. 92, would then refer to specimens of T. calanus, erroneously regarded by these Authors as identical with T. falacer. '^T. calanmi" is so referred to by Dr. Morris in the "Sy- nopsis," (p. 95), although still regarded as a synonym of T. falacer. In Canada and the New Kngland States, T. falacer and T. acadica seem to appear together. I'hc latter species is not cited by Mr. Scud- der, in his very useful Pamphlet on the Butterflies of New Kiigiand, but judging by specimens from Cape Cod, which we owe to his kind- ness, it is probably regarded as a form of Oodart's species. It may be quickly separated from T. falacer, by the extra discal band of the pri- maries beneath being composed of a series of rounded, discontinued, dark or black spots, annulate with white. In T. falacer, as in T. calanus AMERICAN LEPIDOPTERA. 173 and T. lorata. this band is seiuiluuated but interruptedly continuous, the dark preceding shades are not separated into distinct spots and the inner line is often wanting. In T. acadica, we have the fulvous spot on the secondaries above, characterizing also T. calanus, but the greater size of the latter, its more brownish color, and the form of the extra discal band, will sufficiently separate the two species. We have the male T. calanus, from Canada, under the, we believe, unpublished name of T. E(hcar(hu\ Saund., owing the specimen to the kindness of Mr. Edwards; our female specimen is from the vicinity of Philadelphia, and wants the sexual discal mark of the % , is slightly larger but not other- wise distinct, though the antcnnal " club " is fulvous beneath, the Cana- dian "S having it but partially so. Having T. calanus, from Canada and l^cnnsylvania, wo may expect to meet with it at intermediate points through the Eastern States. Our specimens of T. falacer are from Cana- da, New York and Georgia, while we have T. acadica from Canada, Mas- sachusetts an-d Pennsylvania. T. falacer^ Harris, Ins. Inj. Veg., p. 276, may be assumed as a synonym of T. caknus, since, while the "orange- colored spot'' of the secondaries above is mentioned, "there are two rows of spots — l)()rdered on one side only with white " crossing the wings beneath. This latter character would hardly apply to T. acadi- ca, the only other species to be here considered, since the inner extra discal band is here com])letely macular; and though in T. calanus, this band or '-row" of " dark brown spots" is also, but more faintly, edged inwardly by a white line, we may assume that this inner edging, al- ways fainter, and sometimes wanting on the primaries, (T. calanus and T. falaecr), always wanting on the primaries and in one specimen on the secondaries (T. lorata), is not sufficiently constant to affi^rd a spe- cific character. While Harris' T. falacer cannut be referred to Thec- la falacer, Gixlt.^ sp., as illustrated by l^uisd. and Lee, it is then prob- able that his specimens are to be referred to T. calanus, rather than t(i T. acadica. This latter species is nearer allied to Thecla mellinus, )lV.s7/r. i Sfn/mon mel., Hiibn., Zutr. ; T. hamuli, Harris; T. sileiius, E. Duabl. ; T. favonim'l, Bdv. and Lee, pi. 30, figs. 1 — 2, (nee f. 3); T. h/j/jcrici, Bdv. and Lee.) in the color of the upper surface of the wings and general appearance above, than to either of the above-men- tioned species or to Thecla favonius, Bdv. and Zee, pi. 30, fig. 3 (Fa- pilio Fdi'oniufi. Smith, Abbot Ins. Ga.), which latter we have before us from Georiiia. ) 174 GROTE & ROBINSON. 9 Theclahenrici. n. s. Mule and Fonale. — Size and form of Tliecla augustus, Kirhij. Above, of a uniform dark brown, shaded diffusely over the nervules of primaries, ( 9 ,) and on secondaries before anal angle ( S 9 ) with brighter rusty brown ; in the male these latter show a light brassy re- flection. The fringes on the primaries are white, interrupted and en- tirely and very narrowly tipped with blackish. On the secondaries, the fringes are much as on primaries, but more prominently interrupt- ed with black at the extremity of the nervules, where also they are somewhat exerted, especially inferiorly, and most prominently so before anal angle, the latter twisted inwardly, and prominent owing to the excavation of the internal margin within it; the white color is for the most part reduced to a narrow basal line. Beneath : the primaries are of a brighter brown from the base outwardly to the single trans- verse line at apical third running over the nervules. The " veins" are here obsoletely marked with blackish. The single transverse line is straight, once inwardly and slightly notched opposite the disc and, not attainin"- internal margin, is discontinued at the last branch of median nervure. The internal margin, below median nervure, is of a duller and fainter more obscure brown. Outside of the transverse line, the wing is paler, being of an obscure ochreous, divided centrally by a faint light brown shade, and of a similar hue along internal margin inferior- ly, leaving the lighter color to appear as interspaceal blotches; fringes as on up])er surface. Secondaries with the base of an intense black- ish-brown, paler along the costa, and limited outwardly by the median line; this portion of the wing is sparsely clothed with pale and longer hairs, except on costal region outwardly. The median line is shaped as in T. augustus, but is succeeded by white scales. The.se are very prominent at the inception of the line on costa, before the first out- ward inflection, are obsolete centrally, but again appear, edging the line externally, before internal margin. Outside the line, the wing is ochreous brown, (nearly as on primaries outside of the transverse line); this color is most evident superiorly, inferiorly it is obscured by the hoary appearance of the wing and obtains here more narrowly. It is .succeeded by an undulating series of semilunate, black, interspaceal points edged obsoletely inwardly by white scales. Beyond these marks, the terminal space is apically bright intense brown; below this, the wing is entirely hoary, somewhat of a lilac hue. There is a narrow, terminal, interrupted, black line, outside of which the extreme exter- nal margin is again entirely clear brownish; fringes much as on upper AMERICAN LEPIDOPTERA. 175 surface. Some white scales linearily arranged within the extra anal aiiti'le on the margin. Head and body, above, bhackish, with longer and spnrsely scattered pale hairs. Antennae, black, prominently annulated with white; club, black, tipped with fulvous. Palpi, black, with some longer whitish hairs beneath, f^yes, very narrowly margined with white behind. Un- der thoracic surfiiee and legs at base, clothed with long whitish hair. Tarsi, testaceous, with lateral white scales; tibiae marked within with whitish. Abdomen, beneath, obscure whitish. Expanse, 1.10 inch. Length ofhody, 0.40 inch. Habitat. — Atlantic District. (Maine! to Pennsylvania!) This species is intermediate between Thecla augustus, Kirhi/, (T. ougiisfinitii, Westw.) and Thecla irus, as illustrated by Boisduval and LeConte, and is apparently associated geographically with the former. It differs from T. augustus, in the ornamentation of the wings beneath and the brighter colored antennal tips. It is smaller than T. irus and, while resembling it in the ornamentation of the wings beneath, is at once distinguished by the absence of the inner purplish basal space circumscribed by the arcuate white line. From Thecla arsace, Bdo. and Ler., it differs by the markings of both wings beneath; the shape of the transverse lines is very different, and these are not followed by white scales in LeConte's figures, while Thecla henrici has not the brown discal patch and the series of interspaceal, subterminal, brown blotches on the secondaries beneath. To the kindness of Mr. Scudder we owe a specimen of this species, ticketed as from "Maine" (Smith), which does not differ from a num- ber of specimens from the vicinity of Philadelphia, except in that the secondaries show a very few white scales, very narrowly arranged, edg- *ing the secondaries linearily along external margin. There is a vari- ation in the extent of the brown apical space on the secondaries be- neath. In some specimens this is encroached on by the hoary shading so that it is nearly lost. On the under surface of the primaries the veins margining the cell are most prominently discolored with blackish. In the males the brighter shadings of the primaries above are obsolete. With reference to Thecla augustiuus, Westw., (^Tliecla awjiiatna.W Kir- by), it may be remarked, that Fabricius' Hesperia augustus, Ent. Syst., 3, p. 275, will very probably be irrecoguizable. The description : — ''H. R.-alis caudatis albis; limbo fu.sco, subtus ferrugineo flavoque variis, posticis strigis duabus cinereis " — refers to a tailed species, and a reference is made to " Papilio Augustus, Jon. fig. pict. (5, tab. 3, 176 GROTE & ROBINSON. fig. 1," while tlie habitat is given of "America" ou Drury's authority. The work cited is of very okl date and unknown to us ; until the spe- cies intended is identified, there can be no impropriety in retaining Kirby's name for our common species. Family, BOMBYCTDAE. Sub-family, Ptilgdontinae.* DASYLOPHIA, Paclcard. Dasylophia interna, Pacl-ard. (Plate 4, fig. 31, % .) Daiiylophia interna, Pack., Ryn. U. S. Bombyc, P. E. S. Phil., Vol. iii, p. 363. (Xov., 1864.) % . Head, obscure pule ochreous-brown ; the vertical tuft, between the antennae, mixed with pale scales. Antennae, lengthily bipectinate for three-fourths of their length from base ; the stem, above, dusted with whitish scales. Labial palpi shaded above with darker scales. Prothorax, pale brown, edged behind with a black line, as are the te- gulae within. The brown color fades to pale testaceous cinereous over the patagia and hind parts of the thorax, while the abdomen, which is paler beneath, becomes of a more smoky grey above. Legs and tho- rax, beneath, pale testaceous cinereous; tarsi, subannulate with dark scales. The anterior wings, within the first median transverse line, are shaded from the base outwardly with pale, bright brown, this color leaving the costal region of a contrasted blackish-brown, spreading out- wardly as an obliquely limited, widening shade, to the first median transverse line. This latter is obsolete above the median nervure and hardly to be detected; below, at the point whence the fourth median uervule"}" is thrown off, the line appears as an inwardly curved, black streak, within which a second more greatly curved and plainly marked, which includes superiorly a distinct black spot formed by slightly raised scales. The space included by the two lines is pale grey. Me- dian space, pale grey; nervules longitudinally marked with dark scales. The transverse posterior (second median) line appears as a pale grey shade, limiting outwardly the median space. It is preceded by a nar- row, faint, dark post-median shade-line, which is coincident and appro- ximate with it, especially inferiorly. The t. p. line itself runs dowu- * For the sake of conformity we have adopted the Sub-family termination in- stea^' % Dasylophia interna, Packard. 32, 9 Heterocampa pulverea, G. cf- H. 33, % Coelodasys leptinoides, G. <(• i?. 34, 9 Drasteria agricola, G. <(■ Ji. 35, 9 Drasteria mundula. G. l. NEMATUS. Ne^naius, Jurine, Nouv. Meth. 1807, 59. Leach, Zool. Misc. Lepel, Men. Tenth, fff, 62. Hartig, Die Blattw. Sec. 2, Tr. 2, 184. WIjujs ample, one marginal and four submarginal cells, the first and third small, the second large and receiving two recurrent nervures ; the first generally rounded, with the dividing nervure sometimes very indistinct, only to be seen by holding up to the light; four submargi- nal bullae, viz. : one in middle of each transverse nervure and a long one on the submarginal vein beginning at the first recurrent nervure, and that on the third transverse nervure quite wide j lanceolate cell petiolate; under wings with two middle cells. Antennse 9-articulate, elongate, slender, simple, third article gene- rally largest, remainder gradually decreasing in length. Head transverse; clypeus emarginate; mandibles with one inner tooth; fourth joint of maxillary palpi not short; the inner lobes of maxillae with a tooth-like edge or pectination. A suture-like groove generally passes down the face from summit on each side of ocelli, connected back of ocelli by a cross groove, more or less distinct. Be- tween the antennae a ridge, channeled above, is produced. Body short, subcylindric in the males, broader and depressed in the females. Legs simple; two sharp spines at the apex of tibiae; claws in gene- ral with an inner tooth. LariFe twenty-footed (six pectoral, twelve abdominal and two cau- dal). They present quite a variety of habits, as will be seen by the following table. (Dahlbom.) a. Feeding upon leaves of plants, gooseberry, willow, etc., resting at t)ie edges or on the surface of leaves. b. Feeding upon the leaves of pines, social: resting at the edges of leaflets, forming a simple cocoon. c. Living in galls of plants, c. 1. — Gall-makers, Walsh. 2. — Inquilines, Walsh. They are generally social in habit and are often very destructive, eating off all the leaves. TflA.VS. AMEU. ENT. SOC. (25) AUGUST, 1867. 194 EDAVARD NORTON. The cocoon is simple, egg-shaped. It is sometimes fastened to stems, lies sometimes on the surface of the ground, sometimes in the earth. Westwood (Mod. Class, of Insects) mentions the European species which attacks the gooseberry (jY. grossidarirf^} as having been seen in as large numbers as a thousand on a single bush. Other species are found upon the cherry, willow and elm. Westwood refers also to the larvtv; of several species which are soli- tary in their habits, and others which form woody galls upon the stem and also in the spongy rib of the leaf. In some of these giills but one individual resides, and in others more than one in each gall. These galls have mostly been observed upon the willow in Europe. In this country Mr. Walsh has described a number of species bred from vari- ous galls, mostly on the willow, and has made the further remarkable discovery, that not only are some of these galls makers but others are parasitical in the galls of other insects. He has found, too, that many of these are so much alike in the imago state, that it is almost impos- sible to separate them. It is difficult to give a hearty assent to Mr. Walsh's "Incjuilines or Guest-flies," without further investigation. Many species have two broods in a season, of which the first is doubtless the most productive. This is the most difficult genus of this family, because the species are so numerous, (Hartig enumerates about fifty species in Europe,) and presents so few salient points of diflerence, either in form or color. In addition to this, most of the species here named are described from but one or two specimens, so that we have abundant room for fu- ture corrections. Dr. Hartig has joined to this genus several sub-sections, under dif- ferent titles.* •■■"Hartig, Die Blattwespen, Ac, p. 179. 1. Neinatus. — Wings, one marginal and three or four submarginnl opIIs. Subgenus. — 1. Nematus.—y^ mgi, one marginal and three or i\>ur submarginal cells. Sec. 1. — Leptopus. Lanceolate cell closed in middle. Sec. 2. — Nematus. Lanceolate cell petiolate. Tribe 1. — Orensus. The fir.st joint of hinder tarsi as usual. Tri))e 2. — Neinatufs. Last joint of hinder tarsi as usual. 2. — Cryptocampus. Wings, one marginal and three submarginal cells. Sec. L — Crytoe.amj>us. Bod}' lengthened, cylindrical. Sec. 2. — Diphadnus. Body egg-shaped, short. AMERICAN HYMENOPTERA. 195 T(ihular Si/nojisis to assist in finding the sjjecies. 1. Head above the antennpe black. A. Body and legs black 1, concolor. £. Thorax black. » a. Abdomen black. 1. Tegulse and trochanters black 2, Labradoris. 2. ToguliB and trochanters jjale 3, malacus. b. Venter more or less pale. 1. TegulfB and trochanters black 4, extensicornis- 6, marylandicus. (), fallax. 2. TegTilaj and Irocbaiiters pale 7, suratus. s, Winnipeg. 30, ventricosus. 9, monela. 10, subalbatus. 11, corniger. 12, luteolus. c. Abdomen banded with rufous 24, erythrogaster. C. Thorax black, pectus pale 13, Saskatchewan. J). Thorax pale, a black spot on i^ectus 44, bivittatus. 2. Head above antennae more or less pale. JS. Thorax black. «. Venter more or less pale. Trochanters black 14, violaceipennis. 15, nigritus. Trochanters pale 10, ventralis- 17, longicornis. 18, proximatus. 11, corniger 9 • 19, pallicornis. 20, obscurus. 21, S. pisum. b. Abdomen banded with red or yellow 22, brunneus. 23, rufofasciatus. 25, luteotergum. 36, fur. 27, Hudsonicus. I". Thorax black, pleura pale 2S, sumptus. 29, pleuricus. 30, ventricosus, 9- 31, lateralis. 32, desmodioides. 33, fulvipes. G. Thorax mostly pale 34, crassus. a. Pectus black, a pale spot in middle 35, placentas. 6. Pectus pale. Thorax trilineate with black, pleura with two spots. ..30, inquilinus. jileura with one spot 37, longulicornis. scutel black 38, trilineatus. 196 EDWARD NORTON. Tliorax trilineate with black, scutel pale "a, vertebratus. 40, integer. 41, S. pomum. 42, hospes. 4.H. trivittatus. Thorax bilineate with black 45, aureopectus. 4(), mendicus. Metathorax and part of terguiu black 47, chloreus. 48, stigmatus. JI. Thorax and abdomen ])ale 49, monochroma. 1. Nematus concolor, n. sp. Wholly black; wings subhyaline, with a violaceous tinge. Length .24. Br. wings 0.54 inch. $ . Black; antennaj rather stout; head rather coarsely punctured; thorax with shallow, coufluent punctures; nasus smooth, with rounded notch before, its edge and the labruiu reddish-white; abdomen ovate, short; legs black, anterior tibise and tarsi dull piceous, inner claws large; wings with a violaceous tinge, uervures piceous, second submarginal with two angles beneath, widest at the first, a bulla covering most of first submarginal cross line and another at the reception of the first re- current nervure or submarginal nerve extending along the nerve. % . Antennae long and slender. Connecticut ; Albany, N. Y., Dr. Peck. (One 9 , one % .) 2. Nematus Labradoris, n. sp. Shining black; tibise pale; wings hyaline. Length 0.24 — 0.32. Br. wings 0.56—0.76 inch. 9- Black; body stout, as in SrlanJria. Antenucie moderate, flat- tened ; all the joints of nearly ecjual length ; nasus moderately emargi- iiate, face black ; labrum piceous ; tegulae black ; abdomen ridged down the back, apex pale ; legs black ; apical half of anterior femora beneath and all the tibiae, except tips of hinder pair dull white ; inner spur of anterior tibiae large and blunt, tibiae pilose; second tooth of claws as large as first; wings ample, hyaline, nerves brown, stigma and costa pale greenish ; second submarginal with two angles beneath, widest at first; the second recurrent nervure received very near the second submarginal nervure. % . The male is (|uite slender and the anteniKC longer and more slender. Labrador, (A. S. Packard, Jr.) Two 9 , one % . One of the females is not more than half the size of the other, but preserves the same characteristics, 3. Nematus malacus, n. sp. Black; tcguhe, trochanters and legs below knees pale. Length 0.28. Br. win