WI I EPMO HOE EN EO ey EIS (<0 i-th Gali“ din Awe o . =, ° - 12 OE tr PIT A PI IE RMI PTI A TION I LIRLLES ALE I a c DF rR REIN OHM ONT PERTTI NI ITE PREIS IF REE LG 2A REET eI OTE I I MIRE TIT a % AN REC REET RECT RHE Be EOI MLLER OE ONL EA RTE ite Pe? er cn bs one hob kescgie aera La DEE OE AOE ER 8 EY s same D PU OE TI TET IASON Ta LNT ROR IE TA HE 5 ate SPOR mae ar I RE CTI PME HT Feo eetoreecuto cana rar eee rr ie te * - re ae ee Sapna ha ie ne ee en ten eee —— Saaeeimarak Detar ca matinee 3 porta eee A OE eto Res ST IT ee PENT IP E oe Te i ee ee ce ee ne Tne a ee a eS pal ON etc apa aes pri nea SCM mee Prong Sel ane pee oR Pes pe ee ” ee he ee eG NS a A A Pet ee Ee vara Ne ee ie ee ene ae ee Ae er Seti SO See Te ree ee ota ee eee hme ehh ie Far ae ae fasta teat TRANSACTIONS AM BRICAN ENTOMOLOGICAL SOCIETY, PROCEEDINGS ENTOMOLOGICAL SECTION ACADEMY OR NAVURAL SCLEN CES. VOL. XI. PHILADELPHIA : GEORGE B. CRESSON, ENTOMOLOGICAL PRINTER. 1885. el SeieOre PANE Es aise PAGE. AARON, S. FRANK. The North American Chrysidide 209 ASHMEAD, Wy. H. A Bibliographical and Synonymical Catalogue of the North American Cynipid, with description of new species On the Cynipidous Galls of Florida, with descriptions of new species ; ; ; Studies on the North American Chalcididee, with descrip- tions of new species from Florida BLANCHARD, FREDERICK. On the species of Canthon and Phanzeus of the United States, with Notes on other genera hacen, Dr. HH; A. Monograph of the earlier stages of the Odonata, sub-fami- lies Gomphina and Cordulegastrina Horn, Geo. H., M. D. A study of some genera of Elateridze : A study of the species of Cryptobium of North peaiee Studies among the Meloidee : Descriptions of new North American Scarabeeidee Contributions to the Coleopterology of the United States, No. + : . 3 : Descriptions of some new Cerambycidz with notes . Synopsis of the Throscidz of the United States LeContr, JOHN L., M. D. Short studies of North American Coleoptera, No. 2 SMITH, JOHN B. Notes on the Systematic position of some North American Lepidoptera Wiuuiston, 8S. W., M. D. On the North American Asilidze, Part 2 291 Vv 163 107 117 128 173 198 HALTS A.SLTrOoOmMms OF THE AMERICAN ENTOMOLOGICAL SOCIETY. VOLUME XII. Short Studies of North American COLEOPTERA. (No. 2) BY JOHN L. LECONTE, M. D.* I have here included descriptions of nearly all the the important or interesting species which remained undescribed in my collection, except those which require special memoirs or monographs for their proper elu- cidation. Other species belonging to families to which he has given special attention are comprised in a foregoing paper by Dr. Horn, so that these two papers may be considered to exhaust the miscellaneous material now in our possession. I am indebted to the kindness and facile pencil of Dr. Horn for his excellent illustration of Amphichroum maculatum. * After the completion of the second edition of the Classification, Dr. LeConte employed his moments of better health in arranging some portions of his cabinet and writing descriptions of such new species as seemed worthy of separate publi- cation. He was in his study when the chill came on which rendered him comatose and ended in death. After his burial I visited his study and found evidences of very recent work, the manuscript, the open inkstand, the pen and the specimens were as if he had just left them. The manuscript was fragmentary, and much of it incomplete, requiring on my part a thorough study of the material for the com- pletion of the tables and the description of the new species. I can only regret that the publication has from necessity met with delay, which is partially com- pensated by the recognition of a certain amount of synonymy which has been avoided. The two years just passed will always be recalled with profound sorrow, it having been my privilege with my friend Sallé to prepare for publication a posthumous memoir by Baron Chaudoir in 1882, and now alone to present the evidences of the unflagging zeal of my lamented friend and associate, Dr. John L. LeConte.—(Geo. H. Horn) TRANS. AMER. ENT. SOC. XII. (1) NOVEMBER, 1884. 2 Tea ee nOONEE aienD): CYCHRUS Fab. Mr. L. E. Ricksecker, who has diligently collected in the vicinity of Spokane Falls, Washington Territory, has kindly communicated to me two forms of this interesting genus, which seem to be entitled to specific recognition. Mr. Ricksecker has been singularly fortunate in his Cychrine discoveries, and it is to him that we owe our knowledge of the occurrence of the group (Sphzeroderus), with front tarsi of $ strongly dilated, west of the Rocky Mountains, in C. relictus Horn. C. (Spheroderus) regularis.—Black, not very shining, of the same form and sculpture as C. relictus, except on the elytra, which have 12 perfectly regular and entire impressed punctured striz ; the 15th is composed of separate punctures con- fused with the marginal ones; the interspaces are somewhat wider than the striz, the 4th and 8th are interrupted by only 3 or 4 punctures. Length 16 mm.; .65 inch, %. Front tarsi with joints 1-3 dilated, as broad as their respective lengths, densely papillose beneath. . One pair found in the Coeur d’ Aléne Mountains, Idaho, by Mr. Rick- secker, and kindly communicated to me. Cc. Rieckseckeri.— Black, head and prothorax densely strongly punctured, the latter slightly wider than long, narrowed behind but scarcely sinuate on the sides; hind angles obtuse, dorsal channel and posterior transverse impression well marked; basal impressions wanting. .Elytra nearly perpendicularly declivous behind, closely rugose and densely covered with shining granules, which exhibit in places a’slight tendency to form regular rows. Length 17.5 mm.; .7 inch. Montana, one specimen, Mr. Ricksecker. This species is intermediate between C. tuberculatus and C. Hemphilliv. PACHETELES Chaud. P. parea.—Slender, elongate, piceous, under surface and legs rufo-piceous- Head and prothorax finely rugose, with scattered distinct punctures. Prothorax as long as wide, dorsal line entire, sides strongly margined and reflexed, broadly rounded, sub-sinuate near the base, apex slightly emarginate, front angles some- what acute, hind angles rectangular, base nearly straight. Elytra obtusely striate, interspaces moderately convex, alutaceous, each with a row of well marked dis- tant punctures. Antenne stout, extending to the base of the prothorax; frout thighs armed with a large acute tooth. Length 14 mm. Arizona, one specimen. Resembles the description given by Chaudoir of some of the large Tropical species, but seems to differ from all of them by the punctures of the head and thorax, and by the interspaces of the elytra each being furnished with punctures. LEBIA Latr. L. punctifera.—Pale piceous, glabrous, punctured above except on the front and middle of the head; under surface smooth. Prothorax with the basal lobe feeble, sides broadly flattened and rounded, hind angles nearly rectangular. Ely- NORTH AMERICAN COLEOPTERA. 3 tra a little wider than the thorax, strize sharply impressed, not punctured, inter- spaces flat, sparsely punctured, 3d stria with two dorsal punctures. Length 8 mm. Arizona, one specimen. Very similar in appearance to Plochionus pallens, but quite distinct by the punctured upper surface. Seems to belong to Chaudoir’s genus Lionedya. AMPHICHROUM Kraatz. A..maculatum n. sp.—Beneath piceous, above testaceous. Head piceous, coarsely punctate. Antenne piceous, three basal joints testaceous. Thorax oval, slightly transverse, apex and base nearly equal, sides arcuate, margin slightly re- flexed, surface rather coarsely punctate, sparsely pubescent. Elytra testaceous, an oval, oblique piceous spot on each, coarsely punctured, sparsely pubescent. Ab- domen piceous, more closely and much more finely punctured than the elytra. Length 6 mm. Male.—Anterior femora stout, strongly angulate beneath and with a small tooth, the tibize arcuate and thickened at tip; anterior tarsi dilated the first joint more broadly and longer than the next three joints together. Middle femora more slender, the tibiz arcuate, broader toward the tip and with an emargination on the inner side near the tip which is bordered with short fimbrie. Posterior femora more slender, the tibiz straight with a slight emargination on the inner side near the tip. Prosternum on each side with a group of coarse punctures bearing short erect spines. Female.—The femora are more slender than in the male and the anterior is not angulate. The tibie are straight and slender, not emarginate nor thickened. The anterior tarsi are slightly dilated, the first joint not as long as the next three together. Prosternum not spinous. Occurs in the high Sierras of California, Big Trees, Calaveras Co. (Carl Fehr.) and western Nevada (Morrison). Since the publication of the figure* of the male of this species (Tr. Am. Ent. Soc. x, pl. ix) Dr. Horn has recognized the female in his cab- inet. The sexual characters mark this insect as one of the most peculiar of the genus in our fauna. *® As stated above (loc. cit. p. 285) the figure of the above species was prepared by me at Dr. LeConte’s request and appears as Stachygraphis maculata. On the ar- rivalof my figure Mr. Fauvel recognized the species as the one erroneously referred to Amphichroum canaliculatum Er. (Notices Entomologiques, pt. 7, p. 76), concern- ing which Mr. Fauvel writes as follows: ‘ Stachygraphis maculata is the insect described by error in my Staphylinide of N. A. as Amphichrowm canaliculatum. At the time of my description I had merely an individual in fragments, but since I have others of both sexes from Nevada. It is a new species extremely near hirtellum but larger with the more robust head more strongly punctured, more unequal; the thorax larger and longer, a little narrower in front; the female has but a few finer hairs behind the eyes. In hirte//um the anterior tibize are sinuate to the middle, then swollen in mass toward the summit, squarely truncate at tip. Apart from these differences maculatum resembles hirtellum and might be consid- ered a race from the Alps of California.’’—(Geo. H. Horn.) 4 J. L. LECONTE, M. D. EUDECTUS Redt. This genus, characterized in the table on p. 104 of the second Kd. of Class. Col. N. Am., is allied to Coryphium but differs by the antenne, which are not longer than the head and prothorax and much stouter ; the outer joints are distinctly transverse. The joints 1—4 of the hind tarsi are short and nearly equal, combined as long as the 5th. The elytra are long, parallel and densely punctured with narrow side-margin. Prothorax wider than long; sides narrowly margined, angulated about the middle disc densely coarsely punctured, with a deep dorsal line ending behind the middle and surrounded behind by a curved impression. E. erassicornis.—Piceous, opaque, nearly glabrous; base of antennz and elytra paler; legs testaceous. Length 1.5 mm. One specimen, Opelousas, La.; Mr. Salle. The dorsal segments are nearly smooth. The head has two small frontal impressions and widely separated occipital ocelli. The penultimate joint of the maxillary palpi is thick, obconical, and the last joint small, acicular. DRASTERIUS Esch. This genus is very similar to Elater, but differs by the dilated part of the hind coxz being truncate in front of the trochanter, and not emar- ginate as in Hlater and Megapenthes; the angle is therefore obtuse, not prominent as in those genera. The antennz are but feebly serrate, the 2d and 3d joints nearly equal, united longer than the 4th. The pubes- cence is coarse and the punctures deep, except in D. debilis. The color is often brown-yellow, with black spots. roubonsxedeep hy 1p Ud ChUNEH borncsisnesscosncosesntesi-cneenincensecth teaaaees Salstenee Net eeeeeeaeeet 2. erothorax fimelys pun Ctu later. consasss0scs)-cecrs)-s-seeecctssowsmastiey esa se tannaten ieee cane eeneeneres 8. 2. PFoLnoraxenot wider than Clytraicce..c:.-ccsqc) sessoceenclecsseaeen|-sesentsaecmeienseeleescence 3. Prothorax wider than elytra, and two-thirds as long; opaque dirty piceous elytral striz cribrate; 6 mm. California..............0...00-.0 grandicollis. 3.—Prothorax distinctly narrowed near the front.. cceanioas Dac puioap Newceetas Slender, cylindrical, prothorax not narrowed in dront. very See more finely punctured ; opaque, dull ferruginous, with a dorsal thoracic piceous cloud and an elytral fascia behind the middle: interspaces very rough; 7 mm. S&. MOXOS si acc 0's cedures aces cuicuc varcdccavredsdas \coeasune ea seret ete mee ease eer oe seeeen 2.asper. 4-—rothorax in. great part; cyelllows..... D. amabilis Lec. loc. cit. X, 485. 6. >. ecribratus n. sp.—Dull brown, antenne and legs paler; deeply more strongly punctured than in the others, pubescence yellow. Antenne longer than prothorax, slender, 2d and 3d joints united equal to the 4th. Head black. Pro- thorax longer than wide, nearly cylindrical, slightly narrower near the front, hind angles long slightly divergent, sharply carinate, dise with an elongate blackish spot. Elytra with a long anterior black spot and a transverse band behind the middle; strize very coarsely punctured, interspaces finely punctulate; 3.5 mm. Texas. One specimen collected by Belfrage. 7. WD. simiolus Cand. Mon. El. II, 428. I have received a specimen from Dr. Candéze, as collected in California? but have no other knowledge of its occurring north of Mexico. 8. D. debilis n. sp.—Black, very finely punctured, finely gray pubescent. Antenne, legs and elytra brown, the last two with a broad band at the middle and the suture darker. Prothorax one-half longer than wide nearly cylindrical hind angles long slightly divergent, testaceous, sharply earinate. Elytral striz deep, interspaces densely punctured ; 4—5 mm. (2) 6 J) Lee LECONTS, Me D: Marquette, Lake Superior; Messrs. Hubbard & Schwarz. The an- tenn are slender, as long as the prothorax, with the 2d and 3d joints united as long as the 4th. Differs in no respect from Drasterius, though the punctuation is much finer than in the other species. MEGAPENTHES Kiesenw. This genus only differs from Elater by the sutures of the prosternum being not excavated in front between the sternum and the flanks; the 2d and 3d antennal joints are frequently small, equal and together not longer than the 4th, but in this respect there is not an entire uniformity. In all the species the prosternum is concave or channeled between the front coxee, which is not the case in Elater. A.—Hind angles of prothorax unicarinate. Opaque, very densely punctured. Antenne strongly serrate, joints 2-3 very small shorter than 4th; in the male with stiff erect hairs...............20.0:00+ 2 . Less densely punctured not opaque. Antenne moderately serrate...............5+ EMD ESCEM CoM ackacrcewecsicnaeser iseecseeseiccrnec sslveselertacnietiesten=oilsce me eal tetieeisaiea meena heer i nibescen cer DLO wil tere teacelsdoeseistecamiiectens | acmeceaeaanans\esmne iecinatel= sensei seaae a ieee tenet 4. 3.—Beneath less finely and densely punctured; prosternum channeled between the cox; color dull black, legs sometimes dark red; 9.5-1]1 mm. Oregon, Solighernn Calitornicene sesps-sestearenech se ses seianesecsseancssccees mane |. tartareus. Beneath finely more densely punctured, prosternum concave between the cox; black, elytra dirty yellow with darker clouds; ie mm. San Diego, (Wall epore tre eestecss seasiiere conteciaciece can sees tesmaa rep saracecreme se siassaar ae turbulentus. Entirely black, abdomen very finely, still more densely ee proster- num concave between the cox; 9-16 mm. New Mexico, Northern Cali- ONT Ore veel eemaritses safc alscceenslsasstsccieseel conor ecnscase/see\scansie neasease rh MMe Ne Re eRe OE So 4.—Entirely black, very finely and densely punctured beneath ; prosternum con- cave between the coxw; 13-16 mm. Penna.................4. granulosus. Black, beneath very finely, densely punctured; prosternum depressed between the coxee; the whole of the limb of elytra and dise of prothorax reddish yellow, the latter with a medial spot, basal and part of side-margin black; 8-11 mm. Middle and Southern States ..:........0. s-s.cess senses 5. Limbalis. 5.—Antennee with the 2d and 3d joints small equal....................00 asecesee vecceees. 6. Anbenneeswith: 3d joimiblomeersrt ane 2 deere. cnc eesesene ace enee aceon sen enon Neeser 9. 6.—-Prothorax) yellowishvat| base c...s0.. vc ocs2e-50 5. Antenne with joints 2-3 each equal in length to joint 4 and searcely narrower.9. 5.— Lateral margin of thorax distinct in its entire length.......... Seve anpsoeeecasenenet 6- Lateral margin of thorax obliterated except near the hind aries pemeeeeae sear ae 8. 6.—Hind angles of thorax very distinctly carinate. .......... eaeeaee ste dea senate Hind angles of thorax not perceptibly carinate; color mare oes n wih ean pubescence; 7-8 mm. Mass., Illinois, Kansas and Texas.....3. INSAaMUS. 7.— Variable in color, sometimes entirely piceous, or with the sides of thorax dark red, again with the elytra ferruginous, or entirely ferruginous; 9-12 mm. N. E. States, through Canada to Hudson’s Bay, British Columbia, Oregon, Galli fonm dees essere eaces dslorne oton sets scoats soko ornns ssoeseccecown canes: sas 4. fucosus. Thorax much less convex than in fucosus, the punctuation less coarse and dis- tinct, not crowded ; color piceous, elytra dark ferruginous, legs pale; 10 mm. iio Corl eemeneseceanealtse ater sees eweeeacivaonci te coecn=n eekaaces 5. ferrugineipennis. 8.—Parallel, thorax very coarsely and Honea punctured; color variable, often entirely piceous usually with ferruginous elytra; 7-9 mm. California. 6. imperfectus. Form slender, piceous, thorax sparsely punctate; 6.5-7.5 mm. Oregon. 7. Sparsus. *9.—Lateral margin of thorax indistinct in the middle of its oe and very much deflexed in front ; abdomen rather sparsely punctate; 9 mm. Pennsylvania GATT COMO) EI OQ eenentee eee arenes eseiloree sac din acces eaee sin eeconacoranucenesanst 8. pubescens. Lateral margin of thorax sharply defined in its entire length; abdomen densely punctulate; thorax piceous, elytra ferruginous; 8.5 mm. New- foundland, Ne Hand) Canada c.-....c- cosesec-seceerenncsceeseesecaeces 9. limosus. 16 J. L. LECONTE, M. D. 10.—Lateral margin of thorax sharply defined in its entire length.................. ote Lateral margin of thorax very incomplete. Margin obtuse in the greater part of its length ; form robust, piceous, pu- bescence dark brown nearly erect; 8mm. Cal..... ...... 10. hispidus. Margin obsolete in front; abdomen sparsely punctate; 7.5-8 mm. Oregon, Washineton! Territory. -sc.s2-uacsseon--sncsseerelieeeenerereeeee ll. opaculus. 11.—Antenne with joints 2-3 each shorter than the fourth. Third joint of antennee shorter than second; form slender, brown, hind angles of thorax feebly carinate ; flanks of prothorax beneath not densely punctate, shining; 5.5-9.5 mm. Georgia to Canada and Illinois. : 12. oblongicollis. Third joint of antennz distinctly longer than the second ; piceous, elytra dull red, hind angles of thorax strongly carinate; flanks of prothorax beneath densely punctate and opaque; 8mm. Western Nevada. 13. nevadensis. Antenne with joints 2, 3 and 4 very nearly of equal length................... 12. 12.—Abdomen finely, closely punctate .......-. ...cse-+ cosces ecccscars peceelereeasce st ounsesat 13. Abdomen) coarsely, noticlosely pumctavercste-seecresncessoeelsceese teesee tesa ceneee 15. 13.—Prothorax above and its flanks beneath coarsely not densely teat rather BERTH Deer eccwestsae cose cee cestorresem cece ose eaters wae se claeecusjemenarseniseecnies 14, Prothorax and flanks ieee more Giele Saruites ae -opaque ; piceous, elytra dull red, the apical third piceous; 7.5mm. Cal......14. apiealis. 14.— Punctuation of thorax coarse and deep, the punctures more distant from each other than their own diameter; color entirely piceous; 8 mm. Vermont. 15. avulsus. Punctuation of thorax very closely placed ; piceous, elytra with long humeral space dull red); 8mm. Califormia.-:....2:.---:.. ces Beceeese 16. Thevenetii. {5.—Antennz not extending beyond the hind angles of the thorax, the interme- diate joints (4-8) not longer than wide; thorax dull red, head and elytra almost black; 7mm. Yosemite, California........ss0 1008s 17. torquatus. Antenne longer than the head and thorax, joints all longer than wide; pi- ceous, elytra dirty yellow; 6-7.5 mm. Idaho and Wyoming. 18. montanus.* Notes and Decriptions. 4. A. fucosus Lec.—Very variable in color. Asa general rule the specimens with paler thorax are somewhat more coarsely punctured. In California an en- tirely ferruginous form occurs. 5. A. ferrugineipennis Lec.—This species is far less convex than fucosus, and the punctuation of the thorax is less deep and more distinct, the punctures standing well apart. 6. A. imperfeetus n. sp.—Form parallel, piceous, sparsely clothed with pale brownish pubescence, elytra often ferruginous. Antenne as long as the head and thorax, brownish, joints 2-3 sub-equal, each slightly shorter than the fourth, 4-10 equal serrate, 11 longer. Head very coarsely and closely punctate. Thorax * The following species are omitted from the table: A. inversus Cand. is Seri- cosomus flavipennis Motsch. A. protractus Horn, cannot remain in Agriotes, but will constitute a new genus of Athoites, and will be described by me in a future paper (G. H. Horn). NORTH AMERICAN COLEOPTERA. ih slightly longer than wide, parallel %, slightly wider posteriorly Q, sides straight, slightly arcuate at front angles, hind angles not divergent beyond the line of the sides, carinate, dise convex very coarsely and closely punctate, lateral margin almost entirely obliterated except near the hind angles. Elytra striate, strie punctured, intervals flat, closely punctate, rugose at base. Prothorax beneath coarsely not closely punctate, shining. Metathorax and abdomen more finely and closely punctate. Hind coxal plates very little broader internally Length 7-9 mm. This species might be mistaken for some of the feebler forms of fucosus, but the absence of the lateral margin of the thorax will distin- guish it. The apical border of the thorax and its hind angles are always paler than the disc. California, southern Coast Range. 7. A. Sparsus n. sp.—Elongate, piceous, clothed with grayish pubescence, legs and antenne ferruginous. Antennz slender serrate from the fourth joint, joints 2-3 each shorter than joint 4, the third shorter than the second. Head coarsely sparsely punctate. Thorax one-fourth longer than wide, sides parallel. slightly arcuate near the front angles, hind angles slightly divergent. carinate, the carina close to the margin, lateral margin entirely obliterated except near the hind angles, surface sparsely punctate, the punctures not coarse, distant at the middle of the dise. Elytra striate, striee punctured, intervals slightly convex, punctured, some- what rugose at base. Body beneath sparsely punctate, abdomen more finely, sparsely pubescent. Hind coxal plates very gradually broader internally. Length .6.5-7.5 mm. A small slender species which might casually be mixed with Sericoso- mus lateralis. : Occurs in Oregon and Washington Territory. 10. A. hispidus n. sp.—Form nearly as robust as mancus, piceous, slightly shining, sparsely clothed with brownish pubescence. Antenne brown, attaining the hind angles of the thorax, joints 2-3 equal, a little shorter than the fourth, outer joints feebly serrate. Head densely, moderately coarsely punctured. Thorax a little longer than wide, sides in front arcuate, posterior two-thirds parallel, hind angles slightly divergent, carinate, lateral margin very obtuse and indistinct, dise convex coarsely and deeply punctured, the punctures somewhat denser near the base and very much denser at the sides. Elytra more feebly striate on the dise than at the sides, the discal stria more finely punctured, intervals flat on the dise, more convex at the sides, moderately closely punctate, somewhat rugulose at base. Prothorax beneath densely punctate, the flanks more densely and opaque. Meta- thorax rather finely and densely punctate. Hind coxal plates rapidly broader in- ternally, the free angle very obtuse. Length 8 mm. The pubescence of the surface while short is erect. One specimen % , Clark’s Station, California. 13. A. nevadensis n. sp. —Piceous, sparsely clothed with pale brown pubes- cence. Elytra, hind angles of thorax and legs dull red. Antenne brown, as long as the head and thorax, joints 2-3 each shorter than the fourth, third a little lon- ger than the second, 4-10 very feebly serrate. Head black, coarsely and densely punctate. Thorax very little longer than wide, sides nearly parallel, the hind TRANS. AMER. ENT. SOC. XII. (5) NOVEMBER, 1884. 18 J. L. LECONTE, M. D. angles slightly divergent, carinate, lateral margin entire, disc convex, coarsely and closely punctate. Elytra rather feebly striate, strize punctured, intervals flat, closely punctate, rugose at base. Prothorax beneath very densely punctate, the flanks opaque. Metathorax and abdomen finely and very closely punctulate. Hind coxal plates rapidly wider internally, the free angle rounded ; 8 mm. This species might readily be mistaken for mosus, but the form of the hind coxal plates and the punctuation of the prothorax beneath will distinguish it. Western Nevada (Morrison). Cabinet of Dr. Horn. 14. A. apiealis n. sp.—Fusiform, piceous, opaque. Elytra dull yellow with apical fourth piceous, legs ferruginous. Antenne piceous, not attaining the tips of the hind angles of the thorax, joints 2-11 equal, 4-10 distinctly serrate. Head densely punctate, feebly shining. Thorax longer than wide, gradually narrower to the front, sides slightly arcuate in front, posteriorly straight, the hind angles not divergent beyond the line of the sides and strongly carinate, lateral margin acute, dise moderately convex, densely punctate and opaque, sparsely clothed with short gray pubescence. Elytra gradually narrower to tip, twice as long as the thorax, striate, strize punctured, intervals slightly convex, moderately densely punctate, slightly rugose at base, sparsely clothed with gray pubescence. Pros- ternum moderately closely punctate, flanks very densely punctate and vpaque. Metasternum and abdomen closely punctate and finely pubescent. Hind coxal plates rapidly broader internally, the free angle very obtuse. Length 7.5 mm. Rather more fusiform than our other species of this genus. The piceous space at the apex of the elytra extends slightly along the suture and side margin. : One specimen % , Yreka, California. 17. A. torquatus n. sp.—Form parallel, piceous. Thorax dull red, legs fer- ruginous. Antennz brown, joints 2-11 equal, 4-10 distinctly serrate. Head pice- ous, coarsely and closely punctate. Thorax longer than wide, sides nearly parallel, slightly arcuate in front, hind angles feebly divergent, distinctly carinate, lateral margin distinct, acute, disc moderately convex, coarsely and very closely punctate, sparsely clothed with pale brown pubescence. Elytra rather deeply striate, strice punctured, intervals slightly convex, punctate, rugose near the base, sparsely pu- bescent. Prothorax beneath dull red, the prosternum piceous posteriorly and not densely punctate, flanks more coarsely and densely punctate. Metasternum and abdomen more finely but not very closely punctate. Hind coxal plates rather abruptly dilated internally the free angle obtuse. Length 7 mm. This species resembles in form and color some of the smaller varieties of Corymbites conjungens. Yosemite Valley, California. 18s. A. montanus n. sp.—Form robust, piceous, elytra luteous, legs yellowish brown. Antenne yellowish brown not attaining the hind angles of the thorax, joints 2-11 equal, 4-10 feebly serrate. Head coarsely and deeply punctate. Thorax a little longer than wide, sides parallel, slightly arcuate at the front angles, hind angles carinate, not divergent, lateral margin distinct, dise moderately convex, coarsely, closely and equally punctate, very sparsely pubescent, general color pice- NORTH AMERICAN COLEOPTERA. 19 ous, apical border and hind angles paler. Elytra barely twice as long as the thorax, sides somewhat arcuate, striate, strie punctured, intervals slightly convex and rather rugosely punctate, sparsely pubescent. Prothorax beneath coarsely, not closely punctate. Metasternum and abdomen more finely and densely punctate. Hind coxal plates abruptly broader internally, the free angle nearly rectangular. Length 6-7.5 mm. A rather small species with the general form of Monocrepidius auritus. Occurs in Idaho and Wyoming. Bibliography. AGRIOTES, Esch. 1. A. mancus Say Journ. Acad. iii, p. 171; Lec, Trans. Am. Phil. Soe. x, p. 455; Cand. Elat. iv, p. 388; obesus Harris, Ins. inj. to veg. ii, p. 49; striatulus Mels. Proc. Acad. ii, p. 217; truncatus Mels. loc. cit. 2. A. stabilis Lee. loc. cit. p. 457; Cand. loc. cit. p. 457; Cand. loc. cit. p. 376. 3. A, insanus Cand. loc. cit. p. 376; sordidus Lee. loe. cit. p. 457. 4. A. fucosus Lee. loc. cit. p. 456; Cand. loc. cit. p. 375; collaris Lee. loe. eit. p. 456; Cand. loc. cit. p. 374. 5. A. ferrugineipennis Lec. Proc. Acad. 1861, p. 348. 6. A. imperfectus Lec. supra. 7. A. sparsus Lec. supra. 8. A. pubescens Mels. loc. cit. p. 217; Lee. loc. cit. p. 457, Cand. loe. cit. p. 377. 9. A. limosus Lee. loc. cit. 457; Cand. loc. cit. p. 378. 10. A. hispidus Lee. supra. 11. A. opaculus Lec. Proc. Acad. 1859, p. 385. 12. A. oblongicollis Mels. loc. cit. p. 218; Lec. loe. cit. p. 218; Lee. loe. cit. p. 456; Cand. loc. cit. p. 402; asabellinus Mels. loc. cit. 13. A, nevadensis Lec. supra. 14. A. apicalis Lec. supra. 15. A. avulsus Lec. loc. cit. p. 457; Cand. loc. cit. p. 403. 16. A. Thevenetii Horn, Trans. Am. Ent. Soe. iv, 1872, p. 148. 17. A. torquatus Lec. supra. 18. A. montanus Lec. supra. DOLOPIUS Esch. While preparing the species of Agriotes for publication finding in the same box a very large series of Dolopius lateralis with all variations, I have found that D. macer Lec. cannot be retained as distinct. It is more slender than the majority of the other D. dateralis, and entirely piceous, but either character is observed in the series, so that they have no value in specific definition. D. simplex Motsch. is one of the bicolored forms of /ateralis so common in California (G. H. Horn). 20 J. L. LECONTE, M. D. ~ PYROPYGA Motsch. P. simplex.—Elongate-oval, entirely black. Prothorax broadly flattened and slightly punctured at sides and tip, flattened part reflexed; dise alutaceous with very indistinct dorsal line. Antenne with the joints 3-11 equal in length. Light-organs entirely wanting. Length 8 mm. Arizona, one pair Mr. Morrison. Rather broader than P. nigricans with the sides of the elytra more widely flattened. LAMPROHIZA Motsch. L. Riversi.—Front wide, eyes moderate in size, convex. Antennz 11- jointed, Ist and 2d joints equal, together as long as the 3d, the following ones are equal in length, but gradually narrower. Abdominal segments strongly lobed at the sides, last dorsal of male truncate and broadly emarginate. Prothorax with two small transparent spots near the tip; rather strongly punctured, sides opaque, broadly flattened and reflexed ; dise shining, uneven, sub-carinate. The last two ventral segments are yellowish, but dull, so that they may or may not be light- organs. Body above black, prothorax dull reddish yellow, with a black dorsal spot from the middle to the base. Jast dorsal segments piceous, dull testaceous at the sides, last two ventrals yellow. Elytra strongly scabrous-punetured. Length 4.5 mm. One male Sonoma Co., Cala., Mr. J. J. Rivers, of the University of California, to whom I dedicate it in recognition of his promotion of Sci- entific interests on the Pacific coast. This insect greatly resembles . cnaccensa, but is narrower. oD / ? MICROPHOTUS Lec. M. angustus Lec. A female of this species, undistinguishable from those collected in Colorado, Oregon and California, was found by Mr. Hubbard at Hillsboro’, Fla. PLEOTOMUS Lec. P. nigripennis.—Of the same form and sculpture as P. pallens, but of a bright orange color. Prothorax a little longer with the apex less obtusely rounded. Elytra black. Length 13 mm. One male, Arizona, Mr. Morrison. SPATHIZUS Lee. n. g. Lampyride. Male.—Antenne three fourths as long as the body; joints 3-11 each furnished with a long flat process, the outer ones being longer, and narrowed at base; 11th similar to the process of the 10th. Head as broad as the prothorax, eyes moderate convex; maxillary palpi with the last joint pointed, as long as the preceding. Prothorax quadrate, margined at the sides from base to tip. Elytra dehiscent, narrrow and rounded at apex, scabrous-punctured. Legs short, claws divaricate small, broader at base. Sixth ventral broadly emarginate, genital segment small, and prominent, slightly narrower at base; last dorsal truncate and emarginate. NORTH AMERICAN COLEOPTERA. 21 This genus is intermediate between Cenophengus and Tytthonyx, but differs from both by the third joint of the antennze having a process. The gular sutures are confluent behind the mouth, and the triangular space is deeply concave, as in other Phengodini. S. bicolor.—Black, prothorax and under surface bright reddish yellow; mouth and sides of head behind the eyes testaceous. Head densely punctulate, prothorax alutaceous, margined at sides and less strongly at base of apex; disc channeled. Elytra not densely but coarsely punctured, with a strong discoidal costa and a shorter one nearer the suture. Length 7.5 mm. Several males were collected in Arizona by Mr. Morrison. TKLEPHORUS DeGeer. T. costipennis.— Black, prothorax yellow, with a broad dorsal vitta, which is angularly dilated just behind the middle. Elytra very coarsely punctured with a well-marked discoidal costa and a shorter one nearer the suture; mouth some- times tinged with testaceous. Length 6 mm. Florida, Messrs. Hubbard and Schwarz. Quite similar to T. lineola, and differs only by the more coarsely sculptured and costate elytra. POLEMIUS Lec. P. princeps.— Black, head smooth, front whitish yellow. Prothorax smooth, - shining, broader than long, nearly truncate at base, sides broadly reflexed, rounded into the apex with the front angles obliterated, hind angles rectangular; pale red, with a black dorsal vitta not quite attaining base or apex, deeply nicked at the sides about one-third from the hind angles. Elytra finely scabrous and pubescent, margined with testaceous along the sides. Length 14 mm. Arizona, one male. P. strenuus.—Similar to the preceding, but the black dorsal vitta is strongly dilated in front of the base, and the elytra are not margined with yellow. Length 9 mm. One female, Arizona, Mr. Morrison. The prothorax is twice as wide as long and rounded on the sides into the apex ; they are more narrowly reflexed than in P. princeps, and as is the case in all females, not nicked. The elytra are somewhat dilated behind the humeri in both, and the usual three faint costz are quite apparent. P. marginicollis.—Black, head smooth, mouth whitish. Prothorax trape- zoidal hind angles rectangular, front ones rounded, sides nearly straight, apex broadly rounded ; smooth, pale yellow, with a broad dorsal vitta attaining the tip and to the narrow basal margin, broader in front of the base, sides reflexed, edged with black. Elytra scabrous-punctured, slightly dilated behind the humeri, with the costz very feeble. Length 7 mm. One female, New Mexico; Mr. Ulke. These three species have the antennz feebly serrate. 22 J. di. LECONTE, M.D, SELIS Charp. S. atra.—Entirely black, prothorax lobed at base and deeply foveate, ante- basal excavation deep, hind angles prolonged and carinate, appendage straight, front angle of excavation rectangular. Antenne as long as the body, third joint as long as the fourth. Length ‘S mm. One male, Washington Territory. Resembles S. cava, but differs by the longer hind angles of prothorax and by the uniform black color. MALTHODES Kies. M. bicolor.—Black, head and prothorax red; thé former wider than pro- thorax, eyes very convex and prominent. Prothorax wider than long, narrowly margined. Elytra with punctures arranged nearly in rows, two-thirds as long as the elytra. Length 5 mm. One female, Arizona; the 2d and 3d _ joints of the antennz are equal, each a little shorter than the 4th. The head and prothorax are not punctured, the former opaque, the latter shining, not channeled. By the form and sculpture of the prothorax this species seems intermediate be- tween Malthinus and Malthodes. HY DNOCERA Newm. H. longa.—Greenish black, pubescence long, erect, gray; mouth, antenne, front legs, middle tibiz and tarsi, and hind tarsi testaceous. Elytra dark blue, strongly punctured, becoming granulate near the tips, which are separately rounded and distinctly serrate. Prothorax longer than wide, anterior constriction well defined, sides broadly and obtusely dilated. Length 6—7 mm. Arizona, several specimens were collected by Mr. Morrison. THEECA Muls. T. striatopunctata,— Oval, convex, dull black, pubescent with erect gray hairs. Prothorax obliquely narrowed from the base, punctures of the dise with sparse shallow punctures becoming weaker at the sides. Elytra with strongly punc- tured strie. Antenne ferruginous. Length 2 mm. California, one specimen. Of the same size and form as T. profunda, but differs by the strongly punctured elytral strize and less punctured prothorax. PHYMATODES Muls. P. ater.— Black, very sparsely and finely pubescent. Head punetured ; pro- thorax one-half wider than long, strongly punctured, much rounded on the sides. Elytra strongly and equably punctured. Antenne and legs tinged with piceous. Length 6.5 mm. One female collected at Buffalo, N. Y., and kindly given to me by Mr. F. Zesch. The antennz are slender and about two-thirds as long as the body. CRIOPROSOPUS Ferv. C. lateralis.—Black, clothed above and beneath with fine, erect, ashy pu- bescence. Beneath finely, above deeply and coarsely punctured. Prothorax bo NORTH AMERICAN COLEOPTERA. 3 strongly angulated at the sides behind the middle, then concavely narrowed to the base; sides with a broad orange border. Seutel narrow, acute, black. Elytra with narrow side margin and broad transverse fascia, at the first fourth of the length bright orange. Antennz as long as the body. Mesosternum suddenly declivous in front. Length 11 mm. One specimen, Bosque Co., Texas; Mr. Belfrage. This is the smallest Trachyderide known to me. PURPURICENUS CFery. P. dimidiatus.—Black, opaque, densely and coarsely punctured, dise of prothorax red, with a small dorsal callus, edges black. Elytra with the anterior half red, basal margin black. Length 18 mm. One female collected at Yreka, Cala., and kindly presented to me by Mr. Duenkel ; the antennz are shorter than the body and not at all serrate. The coarser and denser punctuation, and different coloration will enable this species to be readily recognized; it is much more Western in its habitat than the other species of the genus. OXOPLUS Lec. O. marginatus Lec.—A small female of this species (14 mm.) agrees perfectly with the large males from Lower California ; the antennz are a little shorter than the body; this would indicate that O. corallinus in which the antennze are comparatively shorter, and distinctly though not strongly serrate, must be retained for the present as a separate species. CROSSIDIUS Lec. C. discoideus (Say). This species extends into Idaho and Ariz. PTEROPLATUS Cery. P. divisus.—Ferruginous, antenne, tarsi, tip of middle and whole hind tibie, abdomen and posterior half of elytra black. Prothorax strongly punctured, dise flattened, sides with a well defined elliptical impression of a darker tinge. Elytra cylindrical, orange colored deeply -punctured, hinder half black, limited by an oblique line running backwards from the suture. Length 9 mm. Dallas, Texas; Bolles. The elytra have four coste, and in form, size and sculpture, this insect is precisely similar to P. floridanus. The hairs are very few and short. P. rufipennis.— Black, elytra reddish yellow, densely punctured, quadri- eostate, wider behind, and flattened on the dise. Prothorax as long as wide, seri- ceous, densely punctured, dise flattened, ornamented with two red vitte, sides impressed as usual, sub-angulated behind the middle. Head with a medial red vitta extending into the mouth. Length 11-13 mm. Arizona, Mr. Morrison. The antenne are half as long as the body and serrate in two specimens before me, one of which was collected near Las Vegas, N. Mex. 24 J. LL. LECONTE, M. D. P. apicalis.—Scarlet, tarsi and antennz black, first joint of the latter and seutel brown-red. Elytra sculptured as in the preceding, apical fourth black. Pro- thorax as in the preceding but angulated at the middle. Length 11-17 mm. Arizona; many specimens were collected by Mr. Morrison. The an- tennze of the female are half as long, those of the male three-fourths as long as the body, more strongly serrate in the former, the pubescence is short but dense in this as in the preceding and next species; they may be only color varieties of one form, but the differences parallel those of certain Lycidz so perfectly that I am disposed for the present to view them as distinet.* P. ignitus.—Scarlet, sericeous pubescent. Antenne, tarsi and tips of middle. and hind tibie black. Metasternum and abdomen more or less piceous. Length 11-13 mm. Arizona, found abundantly by Mr. Morrison. I have only females. LIOPUS Serv. L. centralis.—Rather stout in form, like L. crassulus, densely covered with short pale gray prostrate hair mottled with dark spots more conspicuously than in that species; sides of prothorax oblique in front of the spine which is strong, acute and situate just behind the middle. Elytra with small tufts of black scales ; there is a common rounded sutural spot behind the middle and a lateral one in front of the middle, there is also a small black spot near the scutel, which is dark, and two clouds near the side behind the middle. Length 6.5 mm. Arizona, one specimen. ' LEMA Fabr. L. balteata.—Shining, black, abdomen and transverse band at the middle of the elytra bright rufous. Elytra bluish, the punctures of the rows are deep, but well separated. Length 6 mm. Arizona, Mr. Morrison. Looks like L. solani, but is quite different by coloration and less approximate elytral punctures. L. conecolor.—Black with a greenish tinge. Prothorax a little longer than wide, sparsely punctured, constriction less abrupt than in L. peninsula, sides much less rounded before. Elytra with striz composed of approximate deep but not coarse punctures. Length 4 mm. Las Vegas, N. Mex., Prof. F. H. Snow; one specimen. Similar to L. cornuta, but differs by coloration, and by the elytral striae less close, and composed of smaller punctures; the striz are not fainter behind. The head has a deep puncture on the vertex. * As remarked by Dr. LeConte it is doubtful whether rufipennis and ignitus are not color varieties of one species. At all events rufipennis should be compared with Elytroleptus Alfredi Dugés, La Naturaleza, v, p. 185, no mention of which is made by Mr. H. W. Bates in the Biologia Cent. Am. It is possible that A/fredi and rufipennis are varieties of Pteroplatus pallidus Thoms. (G. H. Horn) NORTH AMERICAN COLEOPTERA. 25 COSCINOPTERA Lac. C. dorsalis.—Black, clothed with prostrate white hair, which is shorter and denser on the under surface. Prothorax densely not coarsely punctured, with a broad smooth dorsal stripe. Elytra more strongly punctured than the thorax, and with no trace of strie. Length 5 mm. One specimen, Arizona. As stout as ©. dominicana, but much more hairy with a very con- spicuous dorsal vitta. C. bifaria.—More cylindrical, of the same form as C. axillaris densely punc- tured, clothed with prostrate white hair shorter and denser on the under surface. Prothorax without smooth dorsal line. Elytra with very faint traces of striz here and there among the punctuation; there is a small marginal red spot at the hu- meri. Length 4.5 mm. One specimen, Arizona. The punctures of the elytra are distinctly of two sizes, the larger ones having a tendency to form rows; the prothorax is densely but less strongly punctured. C. eanella.—Black, of the same form and sculpture as the preceding but the humeral red spot is larger and quadrate, as in C. axillaris. It is, however, distin- guished by the different punctuation of the elytra, which is not of uniform size. Length 5 mm. Southern California; not rare. C. vittigera Lec. A variety having the elytra marked with a large red humeral spot instead of a long stripe. Occurs in Colorado and Arizona. EURYSCOPA Lac. Eu. vittata.—Specimens of this species were collected in Arizona by Mr. Morrison, in which the red color is not prolonged forming a broad vitta, but cut off about the front third; the humeral callus is dark. They thus resemble Lu. Lecontii Cr., but the prothorax is much more finely punctured. | Eu Lecontii Caotch. A small specimen of this species was found in Southern California by Hardy which has only a very small red mar- ginal spot at the humeri. SAXINIS Lac. S. apicalis.—Blackish blue, with white pubescence beneath. Prothorax convex, finely but deeply punctured, basal lobe broadly feebly produced, margined as usual. Elytra with a humeral red spot and another rounded one near the tip; punctured in rows, interstrial spaces sparsely punctulate, epipleural lobe large, obtusely angulated. Length 6 mm. Arizona, Mr. Morrison. Cylindrical, like S. omogera, but much larger, and with the epipleural lobe of a different form. TRANS. AMER. ENT. SOC. XII. (7) NOVEMBER, 1884. 26 J. L. LECONTE, M. D. TRICHOTHECA Baly. T. vagans.—Brown, pubescent, with coarse hair of a grayish color, densely punctured. Elytral punctures stronger, arranged in closely approximate rows. Antenne testaceous, darker towards the tip. Length 5 mm. Texas; one specimen collected by Belfrage. This insect is ead ein guishable from our common Xanthonia except by the larger size and thicker front thighs, which are armed with a large tooth. This is another instance of remarkable geographical distribution ; the single species pre- viously known occurs in Northern India. GRAPHOPS Lec. This genus includes those species, which, unaware of the previous use of the name by Blanchard, I had grouped as Heteraspis (Coleopt. Kan- sas and New Mexico, 23). It seems allied to the Malaysian Scelodonta, but differs by the thighs having no tooth, and by the slender tibiee. The characters are in the surface being pubescent, and the head having two deep impressed lines connected in front between the antennz running obliquely backwards and curving around the upper and back margin of the eyes ; there is also a medial line more or less impressed; in Meta- chroma the lines are in front of the antennz, and are sometimes united between their insertions by a transverse line. The prosternum has a straight outline beneath; the claws are variable in form and afford a convenient basis for the separation of the species. The following table expresses the relation between the species : Prothorax feebly margined at base; clypeus emargimate. ..........1. ecoscccnceeeee De Prothorax strongly margined at base............s000 paoasneseeccreaneers piste cacaerteas seeds 2.—Prothorax finely and densely punctured, elytra punctulate, with striz of small approximate punctures, becoming obsolete behind; color green, pubescence coarse.) Weneth 5ymmae) Mansas-ss.tesenmeieseesenieaer eters . beryllinus. Prothorax strongly and densely Santa elytra alutaceous, strize small, ap- proximate, punctures becoming obsolete behind; form more elongate, color blackish green, pubescence coarse. Length 4mm. Colorado..obseurus. Form of beryllinus, prothorax less densely punctured; elytra punctulate, striz composed of larger, less approximate punctures becoming obsolete behind ; color coppery, green, or even blackish. Length 44.5 mm. Illinois, MG mas, ICANSAS.2.ec3tsesccscs Veeee ech eee ee oe eas Sheamawsetee eee ae varians. 3.—Clypeus truncate ; pubescence Coarse........-cce.seeeeeees cemseens Seaceen eee pecenaneelsneaee 4. Clypeusiemargin ate. .c ...cc-cccesecseos2-Focsbag ison resenecree eataetensesseaiee Seen eeeeeceeee 4.—Coppery, thinly pubescent; head strongly punctured, alutaceous, prothorax punctured, at the sides rugose; elytra punctulate, striz composed of distant larger ones, obsolete behind, sometimes indistinct. Length 4mm. Middle States; "Dexa: .n.cu-cs.caseeeeacssccomne wie siiendbecerdiccs Elytra entirely fulvous. Elytra rather densely punctate, not shining, pubescence fine and entirely re- cumbent. Front black, occiput fulvous. eg srenbine lypib lac Kwesecesepectnsseaeenee ace cedl tetas aeeceeeetenreerecer frontalis Chevr. Femora yellow tipped with black at base and knee........ femoralis Dugés. Elytra not densely punctate, shining, pubescence rather coarse and erect. Head entire lymatullyiousaaaeteeec ns se seceee nee nse ecteee weniseeinseecenlsacee sanciere enc fulwa Lec. Elytra fulvous, apical third and large humeral spot black. . Head entirely black; femora and coxe yellow, the former black at the knees. quadrimaculata Fab. T. femoralis Dugés, La Naturaleza, vol. i, p. 104.—Black beneath, above tulvous. Head fulvous, the front black, sparsely punctate, the punctures finer on the fulvous portion. Antenne black, not longer than the head and thorax. Tho- rax transverse, basal margin reflexed at middle, surface moderately finely not densely punctate, finely pubescent. Elytra wider than the thorax, densely punc- tate, opaque, pubescence short, fine, recumbent and sericeous. Legs black, middle third of femora yellow. Length .36-.54 inch; 9-13.5 mm. This species has the same general form and sculpture as in frontalis and differs in the color of the femora. The antennz of /rontalis are much longer than the head and thorax. Five specimens, Arizona. Also in Mexico. T. quadrimaculata Fab.—lIs further remarkable in having the head and thorax coarsely and closely punctured. Georgia and South Carolina. T. frontalis Chev. of our fauna. I have two specimens from Texas. Seems to have escaped mention as an inhabitant T. fulva Lec.—KEntirely fulvous above, with sparser punctuation, sparser and erect pubescence. The legs are yellow, the femora at the knees, the tibiz at tips and tarsi black. Texas and New Mexico. NORTH AMERICAN COLEOPTERA. Lin Descriptions of new North American SCARAB EID E#. } BY GEORGE H. HORN, M. D. The species described in the following pages introduce three genera into our lists which were previously not with certainty known to oceur with us: Glaresis, Phytalus and Orizabus. The last two had occurred so near our southwestern border that species were confidently expected, but I know of no reason why Glaresis could have been expected to occur in the same region. The full number of Listrochelus is not yet complete as there are yet wanting species with structural characters filling the evident blanks which I have illustrated in a table published some time ago. In Plusiotis new species rarely present themselves, while new Cremas- tochili appear with sufficient frequency to disarrrange all the synopses which have been published. GLARESIS Erichs. G. mendica n. sp.—Oblong oval, robust, dark brown, opaque. Head rugu- lose, occiput vaguely transversely carinate. Thorax nearly twice as wide as long, slightly narrower in front, sides nearly straight, the margin crenulate, dise convex, a subapical impressed line, a median impressed line deeper posteriorly, a vague fovea each side slightly in front of middle, another near the side margin. Elytra very little wider than the thorax, sides nearly straight, slightly divergent poste- riorly, dise convex, each elytron with eight finely elevated coste bearing short sete on their summits, the intervals concave with vague foveze not closely placed. Body beneath and legs rugulose and subopaque. Length .12 inch; 3 mm. The ornamentation of the thorax consists of small distant granular elevations which near the sides become more elongate forming short lines. One specimen, Arizona. G. inducta n. sp.—Form robust, ferruginous, not shining. Head slightly granulate rugose in front, punctate posteriorly, a slight depression above the base the of antenne. Thorax more than twice as wide as long, gradually narrower from base to apex, sides nearly straight, margin not crenulate, subapical impression very feeble, median line very indistinctly channeled, a vague depression near the middle of the side close to the margin, surface opaque with short finely elevated longitudinal lines. Elytra finely costulate, the coste catenulate, intervals con- cave with a single row of barely perceptible large punctures. Body beneath opaque, obsoletely punctate. Length .12 inch: 3 mm. 118 GEO. H. HORN, M. D. A slightly smaller and more robust species than the preceding with the elytral costae much less elevated and the punctures of the intervals even more indistinct. Two specimens, southwestern Texas. The genus Glaresis was indicated, and the characters given rather summarily by Erichson, but to Westwood we owe a full exposition of its details. Regarding its systematic position there is some doubt as Westwood places it among the Orphnides, while Erichson and Lacor- daire consider it a Trogide. The material at my disposal does not admit of dissection, and I can only accept the views of the last named authors. Glaresis might be compared in form to some of our Aegialize. From Trox it differs in having the first joint of the antennze cupuliform and the abdomen small, membranous and retracted under the posterior coxe. The only species at present described is G. Frivaldskyi Ww. from Hungary and it is very remarkable to find now two species in our coun- try and in such a very remote region. As there are now three species known the following sketch gives in brief their distinctive characters. G. Frivaldskyi Westw. Head with very distinct transverse impres- sion from the base of each antennze, median line of front distinctly impressed. Thorax—a deep post-apical impression, deeper near the angles, median line very deeply sulcate, an oblique fovea each side of median line in front of middle and another posterior to the first but more distant from the median line, a depression near the middle of the side margin ; sides of thorax, straight, convergent to the front, the margin crenulate ; surface with small granulations. Elytral costze well marked, intervals with distinct fovez. G. mendica Horn. Head obsoletely foveate at the base of the an- tennx, no median groove. Thorax—post-apical line distinct not deeper externally, median line moderately deeply excavate, an oval fovea near the median line slightly in front of middle, another near the middle of side margin. Elytral costee moderately elevated, the foveze of the inter- vals indistinct. G. inducta Horn. Head as in mendica. Post-apical line of thorax feeble, median line feebly channeled a feeble fovea near the side margin. Elytral costee feeble, the foveze of the intervals scarcely distinct. NORTH AMERICAN COLEOPTERA. 119 PLECTRODES Horn. P. palpalis Horn, Trans. Am. Ent. Soe. viii, p. 146. The specimens hitherto collected of Plectrodes have consisted of males alone and the descriptions of the three species apply to that sex alone. A short time since Mr. Behrens, of San Francisco, loaned me a female of the above species which differs from the male by some characters worthy of note. The form and vestiture do not differ in the sexes, and the tibize have similar teeth on the front pair while the middle and posterior are mu- eronate in a similar manner. The antennal club is but two-thirds in the female the length in the male. The last joint of the maxillary palpi is about half the length in the female, more oval and more acute at tip, the impression quite shallow and not deeper than observed in pubescens. In the male the anterior claw of each tarsus is armed with a moderately long tooth near the base and very nearly of equal length on all three _tarsi; the posterior claw is also toothed but that of the front tarsus has a very feeble tooth, a larger one on the middle tarsus while on the pos- terior tarsi the claws are nearly equally toothed. In the female the an- terior claws are toothed as in the male, the posterior claws are also toothed, but less strongly than the anterior, and on all three tarsi very nearly equally. PHYTALUS Erichs. At the time of the publication of the ‘“ Classification” several species of this genus were known to us, but as none of them were described the name was accidentally omitted. Phytalus should be associated with Lachnosterna and Listrochelus, from both of which it differs in having the claws cleft at tip. In examining the species before me I find the claws differing, two of them having the claws so cleft that the upper portion is more slender and shorter than the lower portion, while in the others the reverse is the case. ‘Two of the Mexican species described by Blanchard are known to me by specimens kindly sent me by Mr. Sallé, and are mentioned in my table for the sake of comparison. The following are the species known to me in nature: Claws unequally cleft, the upper portion more slender and shorter than the ONS Mpate ea ealene semeainncce esseiaserecccafursecssucionscssccctclsctsaieseaileress esttecractonasecemelraeanenee 2. Claws more equally cleft, the upper portion nearly as stout and always longer ANEMIA HG OWE ndemeetrecianech cee cecianstoleseriscceia taracenceltcncacarclodeeaeeciaceasaccaitareaseitees 3 2.--Thorax very regularly closely and rather coarsely punctate. Outer spur of hind tibize of % short, fixed. Form robust. Clypeus feebly emarginate. robustus n. sp. 120 GEO. H. HORN, M. D. Thorax shining, irregularly and sparsely, coarsely punctate. Spurs of hind tibie % free andslender. Form oblong. Clypeus feebly emarginate. laevigatus Bl. 3.—Thorax with a distinct basal marginal line, interrupted at middle. Clypeus rather strongly emarginate, thorax rather finely but regularly Base ly puda Chai? secs sccatsastee ee eamceieonsese=esetease eee cephalicus pn. sp. Clypeus scarcely at all emarginate, thorax very coarsely and irregularly SPANSE LY MUCUS LS seco es ctaclecets aeons wettecteastuats unete ae aieetentscieae pubicollis Bl. Thorax without basal marginal line, clypeus feebly emarginate. Klevated portion of prosternum behind the front coxe in form of a trans- verse lamina broadly emarginate at summit. Head rugosely punctate, the punctures coarse and more or less confluent. pallidus n. sp, Head coarsely punctate, the punctures distinct and not confluent. vexatus n. sp. Elevated portion of prosternum deeply emarginate, the angles prolonged in the form of processes. Head pale, not densely nor coarsely punctate................+. debilis n. sp. Head piceous, deeply, coarsely and densely punctate. georgianus n. sp. P. cephalicus n. sp.—Form rather slender, moderately elongate, color vary- ing from piceous to castaneous. Head coarsely and deeply but not closely punc- tate, a distinct longitudinal frontal impression, clypeus rather deeply emarginate, more densely punctured and rugose than the front. Thorax short, more than twice as wide as long, apex feebly emarginate, not narrower than the base, sides moder- ately arcuate, margin not crenulate, basal marginal line distinct and entire, sur- face shining, punctures moderate in size, rather sparsely placed, but evenly dis- posed over the entire surface. Seutellum with very few punctures. Elytra not wider at base than the thorax, shining, surface coarsely not closely punctate, su- tural costa moderately elevated, the oblique costa scarcely evident, a vague lateral costa a little more distinct. Pygidium very coarsely but sparsely punctate, es- pecially near the apex. Prothorax beneath with very few punctures. Metaster- num closely punctate at the sides, very sparsely at middle, finely sparsely villous. Abdomen coarsely, sparsely punctate. Length .60 inch; 15 mm. Male.—Antennal club as long as the funicle. Spurs of hind tibiz free, the inner twice as long as the outer. Fifth yentral segment slightly flattened at middle. Female.—Antennal club a little shorter. Spurs.of hind tibiz nearly equal. Collected in Arizona by Morrison. P. robustus n. sp.—Facies robust, nearly that of Lach. crassissima, brown, feebly shining. Head coarsely rugosely punctured, clypeus very slightly emar- ginate. Thorax narrower in front, sides moderately arcuate, as wide at base as at middle, lateral margin not crenulate, basal marginal line distinct at the sides, hind angles rectangular; surface feebly shining, moderately punctate, the punc- tures closely placed and equally disposed over the entire surface, very sparsely pubescent. Scutellum coarsely punctate. LElytra very little wider at base than the thorax, coarsely and moderately closely punctate, the sutural and oblique costee feeble. Pygidium obsoletely punctate, the punctures very shallow but va- riolate. Body beneath sparsely punctured, the metasternum villous. Length .80 inch; 20 mm. all NORTH AMERICAN COLEOPTERA. 12] Male.—Antennal club nearly as long as the entire stem. Outer spur of hind tibize short, stout and fixed. Abdomen vaguely concave at middle. In this species the claws are unequally cleft, the upper portion being much more slender and shorter than the lower portion. As in all the species in our fauna the antennz are 10-jointed. This species differs from all those described from Mexico by the very equally and rather closely punctured thorax. One specimen in my cabinet from the Berlandiere collection made along the Rio Grande, and may possibly have been collected on the Mexican side of the river at Matamoras. The antennze in this species are rather short, resulting from the fact that the third joint is the only one elongate, the 4-7 being short and quite transverse. ‘Lhe post-coxal elevation of the prosternum is broad and feebly emarginate. ‘The head is rather large and broad, recalling those of the Lachnosternze allied to /ongitarsis, which this species re- sembles in form but not in color. The claws are so cleft that the upper portion is as large as the lower and somewhat longer. . 2° Q Occurs in New Mexico and Arizona. P. pallidus n. sp.— Form oblong, a little more slender than Lach. glaberrima, color testaceous, the elytra a little paler. Head darker in color, coarsely, densely and rugosely punctured, clypeus feebly emarginate. Thorax a little more than twice as wide as long, a little narrower in front, sides moderately arcuate, margin not ecrenulate, base with a faint trace of marginal line near the hind angles, sur- face shining, punctures moderately coarse sparsely placed, and regularly disposed. Elytra scarcely wider than the thorax, sparsely, rather coarsely punctate, smoother near the apex, the sutural costa moderately distinct, the oblique discal and sub- marginal obliterated. Pygidium coarsely sparsely punctate, shining. Prothorax beneath very sparsely punctate. Metasternum moderately closely punctured at the sides, very sparsely at middle, clothed with short sparse hair. Abdomen very finely sparsely punctate at middle, more coarsely at the sides. Length .56 inch; 14 mm. ‘the male of this species is unknown to me. The female has the an- tennal club about as long as the funicle. The spurs of the hind tibie are both free and nearly equal in length. ‘The post-coxal elevation of the prosternum is broad and vaguely emarginate at tip. The claws are equally cleft, the two portions being similar. Occurs in Arizona. P. vexatus n. sp.—vblong, yellowish testaceous. Head darker, coarsely and moderately closely punctate, clypeus feebly emarginate, less closely punctured than the front. Thorax not more than twice as wide as long, narrower in front, sides arcuate, margin entire, basal marginal line absent, surface shining, moder- ately coarsely but sparsely punctate, the punctures somewhat irregularly disposed. Elytra a little wider at base than the thorax, moderately coarsely and sparsely punc- TRANS. AMER. ENT. SOC. XII. (20) MARCH, 1885. 122 GEO. H. HORN, M. D. tate, smoother near the apex, sutural costa feeble, discal costa obsolete. Pygidium very sparsely and vaguely punctate. Prothorax beneath coarsely and sparsely punctate. Metasternum coarsely sparsely punctate at middle and sides. Abdo- men nearly smooth at middle, vaguely punctate at the sides. Length .48 inch; 12 mm. In this species the third and fourth joints of the antennee are equal and moderately long. The tip of the prosternum is broadly emarginate. The two portions of the cleft claws are nearly equal. This species is less elongate than pallidus ; has the head much less rugulose, and the thorax a little more irregularly punctured. One specimen 9, ‘Texas. P. debilis n. sp.—Oblong, rather slender, pale yellowish testaceous. Head coarsely not closely punctate, clypeus feebly emarginate; eyes rather large and prominent. Thorax a little more than twice as wide as long, narrower in front, sides moderately arcuate, margin entire, base without marginal line, dise moder- ately convex, coarsely, rather sparsely, equally punctate. Elytra very little wider than the thorax, coarsely sparsely punctate, a little smoother at apex, sutural cost feeble, oblique discal and submarginal costz obsolete. Pygidium obsoletely coarsely and very sparsely punctate. Prothorax sparsely punctate beneath, the apex of prosternum deeply emarginate, the angles prolonged. Metasternum nearly smooth at middle, coarsely sparsely punctate at the sides. Abdomen very sparsely punctate at the sides. Length .42 inch; 10.5 mm. Male.—Antennal club longer than the funicle. Posterior tibial spurs free, the inner a little shorter. Penultimate ventral segment with a small slightly roughened space near the posterior margin. The two divisions of the cleft claw are equal. This species resem- bles the preceding, but is more slender and with a more sparsely punctate head. In general appearance it resembles Lach. inana. Occurs in Arizona, near Tucson. In a general review of the preceding species two may be said to have a relatively small head: robustus and vexatus, while the others have a large head. The two Mexican species in the table have a small head, both have the posterior tibial spurs free in the male, one (evigatus) has a long antennal club, the other ( pubicollis) a short club. P. georgianus n. sp.—Form slender, moderately elongate, testaceous, head piceous. Head coarsely, deeply and closely punctate; clypeus short, margin re- flexed, feebly emarginate ; eyes large and prominent. Thorax short, more than twice as wide as long, widest at middle, apex very little narrower than the base, basal marginal line not present, dise with coarse and deep, rather sparsely but regularly placed punctures. Elytra not wider at base than the thorax, sides very little arcuate, oblique costal obsolete, submarginal costa feeble, surface coarsely not closely punctate. Pygidium coarsely spa:sely punctate. Prothorax beneath coarsely sparsely punctate, the post-coxal process very deeply emarginate, the angles prolonged. Sides of metasternum and abdomen sparsely punctate. Length -50 inch; 12.5 mm. NORTH AMERICAN COLEOPTERA. ibe) Male.—Antennal club longer than all the preceding portion. Spurs of hind tibize free, the inner much longer than the outer. Last ventral segment vaguely concave. The claws are slender, the upper portion longer than the lower. This species resembles Lachnosterna volvula so closely that one might readily be mistaken for the other. One specimen, Georgia. Morrison. LISTROCHELUWUS Blanch. -L. flavipenmis nu. sp.—Subcylindrical, moderately elongate, head and thorax rufo-testaceous, elytra yellowish testaceous, surface shining. Head coarsely not closely punctate, clypeus at middle smoother, its anterior margin subtruncate and narrowly reflexed.. Thorax transverse, widest at middle, the sides very ob- tusely subangulate, the margin not crenulate, and with rather distantly placed short stiff sete, surface shining, very sparsely punctate, the punctures a little closer along the apical margin. Elytra coarsely sparsely punctate, sutural costa feebly elevated the oblique discal costa scarcely evident. Pygidium convex, very sparsely, coarsely punctate. Metasternum yellowish testaceous, moderately closely punctate, clothed with fine silken pubescence. Abdomen pale piceo-testa- ceous, very sparsely punctate at the sides, granulate along the middle. Length .60 inch; 15 mm. Male.—Club of antenne long and slender. Abdomen longitudinally concave at middle, the last ventral segment longitudinally impressed, the penultimate less so. Claws pectinate on all the tarsi, the pectination double. Spurs of hind tibize slender. Female.— Club of antenne not longer than the funicle. Claws similar on all the feet, very indistinctly serrulate their entire length with moderate tooth at middle. This species is closely related to disparilis, but differs in color, size and sculpture. The pectination of the $ claws is also different, being fine and equal in the present species, unequal and partly coarse in dis- parilis. . Collected by Mr. Morrison in Arizona. L. gracilis n. sp.—Form rather slender cylindrical, rufo-testaceous, surface distinctly pruinose. Head sparsely coarsely punctate, elypeus subtruncate in front, the margin narrowly reflexed. Antenne nine-jointed, the third and fourth joints being closely connate, club paler but little longer than the funicle. Thorax transverse. wider at base than apex, widest at middle, sides obtusely angulate, the margin crenulate and fimbriate, surface sparsely punctate, punctures less abundant near the hind angles. Elytra not wider than the thorax, sparsely coarsely punc- tate, sutural costa feebly elevated, oblique discal costa obsolete. Pygidium very sparsely finely punctate. Body beneath, sparsely pilose, the metasternum finely not densely punctate, opaque. Abdomen paler, sparsely punctate. Length .52 inch; 13 mm. Male.—Anterior claw of front tarsi biseriately finely pectinate, the outer claw more coarsely pectinate with a tooth at middle. Middle claws biseriately pecti- nate. Posterior front claw biseriately pectinate, the other claw serrate at tip and 124 GEO. H. HORN, M. D. obsoletely pectinate at base. Last ventral segment with a strongly elevated trans- verse carina. Posterior trochanters dentiform at tip. ~Posterior tarsi slender, not pilose beneath. The sexual characters mark this as a very peculiar species. It is allied in many respects to scoparius. ‘The prominence of the hind trochanter has never been observed in any other species. No value is attached to the 9-jointed antennze, as In mucorens it has been observed that speci- mens seem to be indiscriminately nine or ten jointed. One male. Arizona. PLUSIOTIS Burm. P. Woodii n. sp.—Form oval, robust, surface bright brilliant green with a slight golden lustre from the surface, tarsi violaceous. Head sparsely punctate, elypeal margin narrowly reflexed. Antenne piceous, basal joint bright green. Thorax not twice as wide as long, a little narrower at apex, broadest at middle, hind angles nearly rectangular, surface sparsely coarsely punctate with finer punc- tures intermixed, the punctures denser at the sides, especially in front. Scutellum coarsely punctate. Elytra wider at base than the thorax, broadest slightly behind the middle, apical umbones moderately prominent, surface obsoletely striate, nearly entirely obliterated at the sides, striz punctate, the intervals flat, with coarse sparsely placed punctures with finer punctures intermixed. Pygidium rugulose at the sides, closely not coarsely punctate. Body beneath a little more polished than above, sides of metasternum coarsely punctate. Abdomen much more sparsely and finely punctate. Legs bright green, tibiz distinctly golden ex- ternally. Length 1.-1.12 inch; 25-28 mm: The male has the anterior claw longer than the posterior on each tarsus as is usual, but that of the front tarsus is suddenly acuminate near the tip. This species is easily known from either of our other species, gloriosa having suleate elytra, and LeContei deeply striate elytra. The elytral sculpture resembles that of Chrysina. Two specimens from the Rio Grande, Texas, collected by my friend, Dr. H. C. Wood, to whom I have great pleasure in dedicating the species. I have seen another specimen in the Museum of the Jardin des Plantes at Paris. ORIZABUS Fairm. 0. Snowii n. sp.—Dark castaneous, moderately shining, beneath moderately densely clothed with short, reddish brown hair. Head densely punctured and opaque, frontal suture arcuate, clypeus in front reflexed, on each side more ele- vated so as to be bidentate,at middle close to the frontal suture elevated in a slight tubercle. Thorax about one-third wider than long, narrower in front, sides ar- cuate, hind angles broadly rounded, lateral margin fimbriate with short hairs, base with a distinct and entire marginal line, surface coarsely and very densely punctured near the anterior angles from which point the punctures become grad- ually finer, the middle of the disc being very finely and sparsely punctured ; NORTH AMERICAN COLEOPTERA. 5 dise behind ‘the anterior margin with a slight depression in front of which is a slight pyramidal elevation of the margin, flat and smooth in front. Elytra wider than the thorax, about one-fourth longer than wide, scarcely broader behind, sur- face vaguely seven-striate, with large variolate punctures rather closely placed, the fouth and sixth intervals wider with irregular variolate punctures with others at the base of the second interval, sides of elytra beyond the seventh row of punc- tures, coarsely and irregularly punctured. Pygidium sparsely and rather finely punctate. Abdomen smooth at middle, coarsely punctured at the sides. Anterior tibiz with the outer edge regularly arcuate the anterior face coarsely punctured (except along the outer margin) and with a carina extending nearly the entire length ; tip of tibia obtuse. _Length .8 inch; 21 mm. (Pl. 4, fig. 5.) The genus Orizabus was founded by Fairmaire (Rev. et Mag. Zool. 1878) for certain Mexican forms closely related to the Australian Chi- roplatys, and from which no characters of moment have been given to separate them. In our own fauna Ligyrus and Aphonus are its closest allies, and the species resemble those genera greatly in form and sculp- ture. ‘The anterior tibiz in the species described by Fairmaire are with- out teeth on the outer side, but in one of them, 7“sodonoides, the follow- ing expression is used: tibits anticis . . . extus leviter bisinuatis. This latter expression indicates a tendency of the tibia to become dentate, which the following species fully illustrates. The two specimens before me were collected by Prof. Snow in New Mexico. Of the four species described by Fairmaire they seem most closely related to marginatus. 0. ligy roides n. sp.—Dark castaneous, shining, beneath clothed with short reddish brown hair. Head densely punctured and opaque, frontal suture sinuate, elypeus in front narrow, the margin reflexed and acutely notched, obtusely biden- tate, a slight elevation at the middle of the clypeal suture. Thorax about one- third wider than long, narrower in front, hind angles broadly rounded, sides fim- briate, base with a distinct marginal line; apical margin thickened and slightly elevated at middle, surface coarsely and rather densely punctured along the apical third, gradually more sparsely posteriorly, a smooth median space posteriorly and one each side nearer the lateral margin. Elytra wider than the thorax, scarcely a fourth longer than wide, slightly broader posteriorly, the surface with seven vague striz indicated by rows of coarse variolate punctures, the intervals 2-4-6 broader and with irregularly placed punctures, sides of elytra beyond the seventh row of punctures coarsely and deeply punctured, the punctures arranged in vague rows. Pygidium very finely aud sparsely punctured. Abdomen finely and sparsely punctate. Anterior tibiz coarsely punctured, except along the outer mar- gin and apex, a distinct carina extending from base two-thirds to tip, outer edge vaguely tridendate. Length .88 inch; 22 mm. (PI. 4, fig. 6.) In comparing this species with Snowii we find the form more robust, the sculpture throughout deeper and more pronounced. The thorax is not depressed in front and the apex of the clypeus narrower. 126 GEO. H. HORN, M. D. It is, however, in the form of the anterior tibiz that the greatest dif- ference is observed as is shown in the accompanying figure. From the facies of the species and all the other characters there seems to me no doubt that it should be placed in the present genus, and the structure of the tibize of one of the species already quoted seems to indicate the oc- currence of another with the form of tibiz of the one now before me. In the present species it will be observed that the submarginal rows of setigerous punctures of the ventral segments 3-4—5 are better marked than in Snowii. One specimen collected by Mr. Morrison in Arizona. CREMASTOCHILUS Knoch. In a review of our species of this genus published by me (Proc. Am. Philos. 1879, pp. 882-397) there is indicated a peculiar type represented by one species (swueius) in which the clypeus is strongly longitudinally carinate at middle and the thorax trilobed on the disc. One other spe- cies ( plaunatus) has the clypeus carinate, but with the dise of thorax entire, still another ( Wheelerii) has the disc trilobed, but without clypeal carina. - In all the species with widely reflexed clypeus, especially the group below, the surface of the clypeus above is quite smooth and shin- ing. The occurrence of two new species enables me to define a small group with the following characters: Mentum plate rather flat, the margins narrowly reflexed, more widely posteriorly, hind angle of mentum entire ; head rapidly narrower behind the eyes, the clypeus strongly carinate at middle; disc of thorax trilobed. The species thus included are as follows: ibize of normal form, rather thick, more slender at base; hind tibise with a small tooth at middle. Anterior tibiz with the upper tooth near the middle; hind angles of thorax small, acute, not everted. saucius Lec. Anterior tibize with both teeth near the apex; hind angles of thorax rather long, slender and everted. spinifer n. sp. ibise broad, laminiform and thin, not much narrower at base, middle and hind tibize toothed near the tip. ; Anterior tibize with both teeth near the apex; hind angles of thorax acute, but short. planipes n. sp. C. spinifer n. sp.—Piceous, slightly shining. Head coarsely not densely punctured, the occipital region transversely depressed; clypeus, viewed from above, nearly semi-circular, margin widely reflexed, at middle very strongly cari- nate, surface smooth. Thorax wider than long, narrower behind, sides arcuate in front, sinuate posteriorly, the hind angles acute and prolonged externally, anterior NORTH AMERICAN COLEOPTERA. 127 angles with a deep incision forming in front an auriculate lobe, dise trilobed, the median portion being somewhat depressed, surface very coarsely but sparsely punctured. Elytra with disc flat, sides nearly vertical, discal region with shallow, elongate fovez, the sides with coarse punctures. Pygidinm coarsely sparsely punctate. Body beneath shining, with very coarse but sparse punctures. Legs brownish, anterior tibize obtusely bidentate near the apex, middle and posterior tibiee acutely dentate near the middle. Tarsi ambulatorial, cylindrical, slightly compressed; and but little shorter than the tibiz. Length .30 inch; 7.5 mm. (Pl. 4, fig. 1.) Tn the plate is an outline sketch of this species which will serve better than a description to give an idea of its curious form. The mentum is rather deeply cupuliform, smooth, the hind angles entire. One specimen, Texas. C. planipes n. sp.—Robust, piceous, feebly shining, legs reddish brown. Head coarsely, not densely punctate, occipital region transversely depressed, cly- peus semi-circular, margin widely reflexed and fimbriate with short hairs, at mid- dle strongly carinate, surface smooth. Thorax transverse, narrower behind, sides slightly arcuate in front, oblique behind, hind angles acute, smooth and shining, anterior angles deeply incised forming an auriculate lobe, disc trilobed, the me- dian portion much wider and depressed, surface with rather closely placed vario- late foveze, densely placed near the side margin. Disc of elytra flat, with very elongate fovez, sides nearly vertical with coarse variolate punctures. Pygidium with coarse variolate punctures. Body beneath coarsely sparsely punctured. Legs broad and flat, sparsely punctured on the under side, smooth above. Ante- rior tibize bidentate at apex, middle and posterior tibize with the outer edge acutely bidentate near the tip. Tarsi cylindrical, slightly compressed, shorter than the tibie. Length .52 inch; 13 mm. (PI. 4, fig. 2.) The punctures of the entire surface bear short erect black hairs. In the accompanying plate are figures in outline of the three species which [ have associated in one group. Their differences may be seen at a glance. The mentum is rather flat at bottom, the sides reflexed, the posterior angle entire. One specimen, Arizona. C. imeptus n. sp.—Black, feebly shining, form relatively elongate. Head coarsely and closely variolate punctate, occiput not transversely compressed, front flat, clypeus narrowly reflexed. Thorax broader than long, general form hexag- onal, anterior angles shghtly acute, posterior angles obtuse, disc feebly convex, with very coarse, moderately deep and rather closely placed punctures. Elytra with flat dise which has very elongate variolate fovez, the sides very coarsely punctured. Pygidium with coarse variolate punctures. Legs ambulatorial, rela- tively slender, anterior tibie bidentate near the tip, the middle and posterior _ toothed at middle and with coarse teeth around the apex. Tarsi nearly as long as the tibiee, cylindrical. Body beneath very coarsely but sparsely punctate. Length -50 inch; 12.5 mm. (PI. 4, fig. 4.) In this species the mentum plate is of pentagonal form, acute poste- riorly and entire, rounded in front, surface slightly concave, sparsely 128 GEO. H. HORN, M. D. punctate, the margins not reflexed. It should be associated with /enco- stictus in the section Brilocnemis. It is a more elongate species than the latter and with a different form and sculpture of mentum. One specimen from Arizona, kindly given me by Mr. L. E. Ricksecker. Contributions to the Coleopterology of the United States. (No 4.) BY GEORGE H. HORN, M. D. In the initial paper of the present volume Dr. LeConte remarks that it includes descriptions of nearly all the important material in his collec- tion, and that previous papers by me exhausted nearly all undescribed species in my cabinet. It has been my custom to avoid, as far as possible, the description of isolated species, except in the case of those belonging to very recently monographed families, allowing the others to accumulate until their num- bers render it advisable to prepare essays of a more or less monographic character. The quantity of new material has at last become too great to neglect and the present contribution has been prepared, at the same time the principle above mentioned has been almost strictly adhered to. Several portions which were originally part of the present paper have been sepa- rated under independent titles more expressive of their contents. The typical specimens of all the new species which follow are in my cabinet. CARABID A. CALOSOMA Weber. C. Morrisonii n. sp.—Black, moderately shining. Head moderately closely punctate, rugulose at the sides, mandibles transversely wrinkled. Thorax twice as wide as long, base and apex nearly equal, sides strongly arcuate in front, ob- lique behind, hind angles very obtuse, lateral margin narrow in front, more widely reflexed posteriorly, the basal impressions moderately deep, apex feebly, base more distinctly emarginate, median line distinct, surface moderately closely punctate and more rugulose at the sides and along the base. Elytra oval, widest behind NORTH AMERICAN COLEOPTERA. 129 the middle in both sexes, humeri distinct, surface rather shining, with about fif- teen rows of rather fine not closely placed punctures, the intervals with a single row of finer and more distant punctures, the fourth, eighth, twelfth and submar- ginal intervals with a series of moderately distant larger golden punctures. Pro- thorax beneath sparsely punctate, metathorax at sides more coarsely, abdomen sparsely punctate at the sides. Length .72-.80 inch; 18-20 mm. The male has three joints of the anterior tarsi spongy pubescent beneath. This species from the evident golden elytral spots must be as- sociated with calidum and tepidum, than either of which it has much smoother elytral sculpture although resembling them in general form. It might be mistaken for a smooth variety of obsoletum, but the elytra are more dilated, their sculpture smoother, and without the imbricated appearance. The base of the thorax is distinctly bisinuate in obsoletum and simply emarginate in the present species as well as in those with which it is associated. Collected by Mr. H. K. Morrison in Colorado. With it I associate his name as an evidence of my appreciation of his industry and success in adding to a knowledge of our fauna. STOLONIS Motsch. The occurrence of a species of this genus within our faunal limits is rather unexpected, as none have as yet been found north of Yucatan. Stolonis was rather insufficiently described by Motschulsky (Bull. Mose. 1865, ii, p. 230), but to Mr. H. W. Bates we owe a fuller expo- sition of its characters in his usual able manner (Ent. Mo. Mag. viii, p. 148). Chaudoir gives some additional information regarding species ap- parently unknown to Mr. Bates (Bull. Mose. 1873, p. 85). There can be no doubt of the correctness of the views of Bates and Chaudoir in associating Stolonis with Loxandrus. The three glabrous antennal joints and the elytral plica are sufficient to indicate its position in the Pterostichini: The anterior tarsi are obliquely dilated in the males as in Loxandrus, although Chaudoir says this is very feebly evident in the smaller species. The elytra have one dorsal puncture on the third interval rather closer to the second stria, there is no scutellar stria. Chaudoir indicates the only positive and permanent character which will distinguish Stolonis and Loxandrus. In the former the thorax is strongly constricted at base forming, as it were, a neck. ‘The acute margin of the thorax does not extend on this neck. S$. Ulkei n. sp.—Piceous black, shining, iridescent. Head smooth, a deep frontal impression each side, and a slight trace of a vertical fovea. Antenne slender, basal joint testaceous, 2-6 piceous, 7-1] white. Thorax cordate, sides TRANS. AMER. ENT. SOC. XII. (21) MARCH, 1885. 130 GEO. H. HORN, M. D. strongly arcuate, strongly constricted at base, surface smooth, median line rather deeply impressed, subapical impression feeble, a few coarse punctures along the base, especially near the hind angles, which are rectangular. Elytra oval, humeri rounded, surface moderately deeply striate, the strize crenately punctured, inter- vals very slightly convex, the sutural interval behind the middle and the lateral margin of the elytra ferruginous. Body beneath smooth, shining, iridescent. Legs pale yellowish testaceous. Length .24 inch; 6 mm. (PI. 4, fig. 1.) It is not without some hesitation that I give this species a name. The description of S. intercepta Chaud. from Yucatan, fits very accurately the species before me, but being rather a comparative than a didactic description it is impossible to ascertain. One @ specimen from Texas. I have seen another in the cabinet of Mr. Ulke. PLATYNUS Bon. P? quadrimaculatus n. sp.—Rufo-testaceous, sides of abdomen pice- ous, head black, elytra black with a large humeral spot confluent with that on the opposite side, another very little smaller near the apex. Head oval, eyes distant from the thorax, surface subopaque. finely alutaceous, a few punctures near the occiput. Thorax somewhat cordiform, a little longer than wide, narrower at base, apex feebly emarginate, base truncate, sides in front arcuate, posteriorly sinuate, hind angles rectangular but not prominent, an extremely narrow reflexed margin, dise very slightly convex, basal impressions shallow but nearly reaching the mid- dle, median line finely impressed, surface subopaque, alutaceous, very sparsely finely punctate. Elytra oval, broader behind, humeral angles much rounded (body feebly winged), striate, striz obsoletely punctured, intervals flat, alutaceous, dorsal punctures three, on the third interval close to the third stria. Body beneath more shining than above, almost entirely smooth. Metasternal episterna moder- ately long. Tarsi slightly hairy on the upper side, without tarsal grooves. Length .30 inch; 7.5 mm. ‘PI. 5, fig. 2 Female.—Tarsi slender, fourth joint scarcely emarginate. Last ventral with three sete each side at apex. I place the very pretty species above deaetvaad in Platynus for want of knowledge of a better place. While all the essential characters are those of that genus, the slightly hairy upper side of the tarsi is at vari- ance, this in connection with the style of coloration makes the species rather an anomaly in the genus. The general form of body and the long basal impressions of the thorax are very like some of the apterous Platyni (e. g. jejunus). The male might give some additional charac- ters and lead to the formation of a new genus, which I suppose will have to be done. I have seen but one specimen kindly sent me by Dr. John Hamilton, of Allegheny, collected by Mr. Klages “ Feb. 27, 1881, under the bark of a fallen gum tree near Owensburgh, Ky.” (banks of the Ohio, near Louisville. ) NORTH AMERICAN COLEOPTERA. 131 GALERITA Fab. G. decipiens n. sp.—Form of Janus. Head, palpi antenne, body beneath and legs black. Thorax reddish yellow. elytra decidedly bluish. Head oval, very broad behind the eyes, coarsely and densely punctate. Thorax as in Janus, oval, narrowed behind, broadest in front of middle, hind angles very obtuse, surface rather densely and coarsely punctate. Elytra oval, rather depressed, black, sur- face decidedly blue, especially at the sides, striate, strie distantly punctured, in- tervals rather coarsely, closely and roughly punctate, sparsely pubescent. Body beneath more shining, less closely punctate and more sparsely pubescent. Length -70 inch; 18 mm. The colors of this species are those of atripes, except that the elytra are more distinctly blue. From that species it is known by the form of the head. Two species, atripes and bicolor have the head rapidly narrower from the eyes to the neck, the present species has more nearly the form of head of Janus. Occurs in Arizona. LEBIA Latr. L. montana n. sp.—Beneath and nead black, thorax red, elytra dark blue, or with a slight greenish tinge. Antenne slender, piceous, two basal joints and part of the third red. Head very sparsely finely punctate, rather abruptly nar- rowed behind the eyes. Thorax red, twice as wide as long, median line finely impressed, very little narrower behind, margin narrower in front, broader behind, hind angles rectangular, surface finely transversely wrinkled. Elytra very finely striate, strisee obsoletely punctured, intervals flat, very finely alutaceous, dorsal punctures two on the third interval near the third stria. Abdomen very sparsely punctate. Legs piceous or piceo-testaceous. Length .22 inch; 5.5 mm. This species belongs to that division of Lebia defined by Chaudoir as Lebia proper. By its general appearance it is most closely related to viridipennis. The latter has a yellow under body, and the legs, except the knees and tarsi, are yellow. The elytral striz are, in montana, a little more distinct. The only other species similarly colored is atripennis, which has the metathorax red, and belongs to a different section of the genus. Occurs in Montana. ~~ L. lecta n. sp.—Body beneath, head, thorax, legs and antennz pale rufo-tes- taceous, abdomen piceous, elytra metallic green. Head suddenly narrowed imme-~ diately behind the eyes, surface alutaceous, impunctate. Antennz slender, en- tirely rufo-testaceous. Thorax very little narrowed behind, margin rather broad, wider posteriorly, hind angles rectangular, median line finely impressed, surface alutaceous and transversely wrinkled. Elytra entirely metallic green above, the epipleurz rufo-testaceous, surface rather deeply striate, strie finely punctured, intervals slightly convex, alutaceous. Abdomen nearly smooth, the punctures sparse and very distant. Fourth joint of hind tarsi very deeply bilobed. Length -14 inch; 3.5 mm. : exe GEO. H. HORN. M. D. The specimen before me is a female, and I cannot determine, with absolute certainty, whether the species belongs to the Loxopeza or Lebia series. The fourth hind tarsal joint being very deeply bilobed it is more than probable that it is a true Lebia, and should be placed near pleuritica. It is a much smaller species than any in our fauna except pumila, and resembles a diminutive plewriticu in color except that in the latter the side margin of the elytra is narrowly pale. One specimen, Florida, given me by Mr. W. H. Ashmead. L. seapula n. sp.—Antenne rufo-testaceous. Head rufo-testaceous, sparsely finely punctate. Thorax similar in color, transverse, slightly narrower behind, margin moderately wide, wider near the hind angles, which are rectangular, sur- face slightly transversely wrinkled. Elytra piceous, almost black, with a large rufo-testaceous humeral spot which extends in a point on the fifth interval, and is prolonged narrowly along the side to the apical margin, surface striate, not punctate, intervals slightly convex. Body beneath and legs rufo-testaceous. Abdomen piceous, sparsely punctate. Length .22 inch; 5.5 mm. From its style of coloration this species resembles L. xanthopleura Chd., as figured by Mr. Bates (Biol. Cent. Am. vol. i, pt. 1, pl. xi, fig. 9). It is, however, a smaller species, with a differently formed thorax, and without the humeral piceous spot. ‘The figure (Pl. 5, fig. 10) will give an idea of the markings. It should be placed among the Lebia, although the mentum tooth is indistinct. It is the only true Lebia in our fauna with ornate elytra having a pale head. One specimen, Arizona. L. vivida Bates, Biol. Cent. Am. vol. 1, pt. 1, p. 298.—Rufo-testaceous, not shining. Head black, apical half and narrow basal margin of elytra blue. An- tennze piceous, basal joints somewhat paler. Head black with slight tinge of blue, moderately coarsely but not closely punctate. Thorax transverse, slightly nar- rower posteriorly, margin moderately wide, broader at the hind angles which are rectangular, surface rather coarsely punctate and wrinkled. Elytra striate, the striee not visibly punctate, intervals flat, rather coarsely sparsely punctate and alutaceous, basal margin narrowly blue-black, apical half blue-black, the anterior margin of the latter space irregular. Body beneath shining, very sparsely punc- tate. Femora and tarsi almost black, tibie paler, sometimes testaceous. Length .22 inch; 5.5 mm. The accompanying sketch (PI. 5, fig. 7) will give an idea of’ the style of marking of this species. By its color and the rather coarse punctua- tion of the surface is very distinct from any species in our fauna. In our series it should be placed with divisa after bitaeniata and pulchella. Two specimens, Arizona. This species is referred by Mr. Bates to Metatola, and as I have al- ready expressed the opinion that Lebia has been very artificially and un- necessarily divided, I prefer to retain the name Lebia alone. NORTH AMERICAN COLEOPTERA. 133 LL. depicta n. sp.—Rufo-testaceous, legs entirely and antenne, except first joint, black, elytra conjointly with three black stripes, the sutural bifurcate at the base. Front sparsely punctate, at the sides and posteriorly slightly wrinkled- Antenne nearly black, the basal joint rufo-testaceous. Thorax very little nar- rowed behind, the margin rather wide, wider posteriorly, hind angles rectangular, median line finely impressed, surface wrinkled and more rugulose near the side margin. KElytra finely striate, striz obsoletely punctulate, intervals slightly con- vex, very finely alutaceous, general color pale yellow, a common black sutural vitta which occupies the two inner intervals on each elytron, except a short dis- tance at tip, and bifurcate about one-third from the base, on each elytron a vitta beginning at the shoulder occupying the sixth and seventh intervals, becoming a little broader near the apex. Legs and palpi entirely black. Length .26 inch; Geomnanas (ele be hicGa) This species belongs to the Aphelogenia group of Lebia, characterized by the absence of mentum tooth. In its markings it resembles furcata, but differs from all our species in this series with wide thoracic margin by its entirely black legs. Occurs in Montana. L. vittata Fab. var. Sprague Horn (PI. 5, fig. 9). ‘The variety above indicated is that form in which nearly the entire disc of the elytra, except a narrow side margin and apex, is black. I have now specimens from Georgia which correspond in every particular with the figure given by Chaudoir in his monograph ( Bull. Mose. 1871, 1, p. 40, Pl. 3, fig. 127). The typical form of vittata has some resem- blance to scwpularis, but there are many characters separating these. LL. conjungens Lec. is really a variety of this species. L. pecetita pro vittata {| Horn nec Fab. (PI. 5, fig. 5.) In consequence of the correct determination of the preceding species it becomes necessary to change the name of the present. It is also a vittate species, but the common sutural vittata reaches the apex but does not bifurcate at base ; the outer vitta is abbreviated at base and apex, limited within by the fourth stria, extending over three intervals (5-6-7), but narrower toward the apex. Our species of the division Aphelogenia separate into two natural series: (1) those with the thorax widely margined, and (2) those with a very narrow margin. ‘The first series contains the following species : Body beneath pale; head and thorax similar in color. Elytra with the sutural vitta bifurcate at base. Femora in great part rufo-testaceous, sutural vitta bifureating one-third from DS Gareeetttecteeteasleesescee cc cesce=tfesveceteesecaeetnseeseseeseeecqons-saneer AMM aka) Wiocs Legs entirely black, sutural vitta bifurcating very near the base. depicta n. sp. Elytra with sutural vitta not bifurcate. 154 GEO. H. HORN, M. D. Elytra in great part black, with (at most) a narrow side margin, apex, and slender oblique stripe nyellOweverten-c-scswse=senercs sansa deren ceeeiaee vittata Fab. Elytra in great part yellow, sutural black vitta beginning at the apex but not reaching the base, the lateral vitta short................0. ----e0++- pectita n. sp. From Chevrolat’s description of flvovitivta it seems related rather to scapularis than to vittata. CHLJENIUS Bon. Cc. insperatus n. sp.—Totally black. Head nearly smooth. Thorax trans- verse, a little wider at base than apex, sides moderately arcuate, feebly convex, surface coarsely punctured, the punctures rather irregularly placed, being denser along the base. Elytra a little wider than the thorax, basal marginal line not angulate at the humeri, surface finely striate, strie with distant punctures, inter- vals flat not closely punctate, pubescence fine and black. Prothorax beneath smooth, prosternum distinctly margined. Metasternum and side pieces with very coarse distant punctures, met-episterna longer than wide in front. Abdomen smooth at middle, sparsely punctate at the sides, not pubescent. Length .50 inch; 15 mm. The male has the first three joints of the anterior tarsi dilated, the middle tibia not pubescent externally at tip. By the arrangement pro- posed by me (Trans. Am. Ent. Soe. v. 255) this species must be referred to the division A, in which the males have middle tibiz not pubescent externally. By its impunctured abdomen it is more closely related to tomentosus, but in its general appearance it resembles a large purpuri- collis. It differs from the latter as well as from all those with a broad thorax by the prosternum margined at tip. Occurs in Arizona. BRACHYLOBUS Chd. B. caurinus n. sp.—Beneath piceous, above bright green, sparsely clothed with short fulvous pubescence. Antennze piceous, three basal joints pale. Head shining, sparsely punctate, the vertex nearly smooth. Thorax about one-half wider than long, base slightly wider than apex, sides arcuate, very slightly sinuate in front of the hind angles, which are nearly rectangular, median line moderately impressed, a short longitudinal impression each side in front of base, surface coarsely and moderately closely punctate, especially near the base. Elytra regn- larly oval, very little wider than the thorax, nearly twice as long as wide, surface opaque, finely striate, intervals flat, closely submuricately punctate. Body be- neath shining, the thoracic segments coarsely punctate. Abdomen more finely punctate over its entire surface. Femora piceous, tibie and tarsi testaceous. Length .36 inch; 9 mm. (PI. 5, fig. 3.) A more elongate species than B. lithophilus (Pl. 5, fig. 4), which it, however, resembles in general appearance. In the present species the thorax is very little wider at base than the apex and the hind angles well NORTH AMERICAN COLEOPTERA. 135 defined, while in “ithophilus the base is much wider than the apex and the hind angles obtuse or rounded. The latter species has entirely pale legs. One specimen % , kindly given me by Prof. Wm. Duenkel, which was collected by him near Yreka, Cala. STAPHYLINID A. OXYPORUS Grav. ©. austrinus n. sp. —Black, shining, elytra testaceous with the suture and outer apical angle black. Legs pale yellow, the knees and tips of tibie narrowly piceous. Antennze piceous, but somewhat paler at base. Thorax broader than long, narrower at buse, widest in front of middle, sides arcuate. Elytra longer than the thorax, conjointly wider than long, slightly wider behind, with a sub- sutural and two discal punctured striz, all very regular with but few irregular punctures between them, surface smooth, the outer apical angles finely rugose. Abdomen smooth, with the usual two dorsal punctures on each segment, beneath shining with fine scattered punctures. Length .26-.30 inch; 6.5-7.5 mm. This species resembles vittatus, but should be placed near femoralis from the finely rugose apical angles of the elytra; it differs from the latter, however, by the smaller size and entirely pale legs. I have seen five specimens collected near Savannah, Ga., by Mr. Geo. Noble. ®. ocecipitalis Fauvel. This species is mentioned to note its vccurrence in Washington Terri- tory. ©. faseiatus Mels. Proc. Acad. ii, p. 40.—Head variable in color, sometimes entirely black, usually rufo-testaceous with the front and sides black. Thorax transverse, narrower behind, sides arcuate, broadest at or behind the middle, color rufo-testaceous, apical and basal margins black. LElytra wider than the thorax, conjointly wider than long, slightly broader behind, very shining, rufo-testaceous, suture and outer apical angles black, subsutural series of punctures regular, the two discal rows somewhat irregular. Abdomen shining, terminal segment pale, fourth and fifth above and beneath entirely piceous, the second and third pale but brownish at base. Abdomen beneath rufo-testaceous except the fourth and fifth segments. Legs testaceous. Length .28—.34 inch; 7-8.5 mm. This species has been quoted in all the books as a variety of vittatus, even by Melsheimer, but I am convinced that it is fully entitled to be retained as distinct, from the great uniformity of the color of the speci- mens before me, as well as in the shorter and broader thorax. If it ‘must be admitted as a variety then vittatus, bicolor and occipitalis must also» be considered varieties of one, and the entire aggregate of four called vittatus. Abundant in the District of Columbia, taken by Mr. Ulke. 136 GEO. H. HORN, M. D. SILPHID A. ECHINOCOLEUS n. ¢g. Form convex, oboval, narrower behind. Head usin Choleva. Antenne short, almost entirely glabrous, last joint pubescent at apical half; first joint cylindrical, narrower at base, second oval, joints 3-11 gradually wider, those from 3-8 gradu- ally shorter and more transverse, eighth as wide as the seventh and ninth and a little shorter, joints nine and ten nearly equal, as wide as long, eleventh longer, oval at tip. Maxillary palpi with last joint elongate conical as long as the pre- ceding joint. Middle cox slightly separated, the mesosternum not carinate; posterior coxee contiguous. Tibiz spinulose externally, spurs slender and moder- ately long. The genus for which the above name is proposed is closely related to Choleva, and differs especially in the form and structure of the antenne. In this respect it resembles Catopomorphus, from which it differs by the non-carinate mesosternum and the form of the terminal joint of the palpi. E. setiger n. sp.—Broadly oboval, narrower behind, pale castaneous, feebly shining. Head finely punctulate, sparsely finely pubescent, with short, semi-erect sete intermixed. Thorax very transverse, more than twice as wide at base as long, apex subtruncate, sides arcuately narrowing to the front, base broadly emar- ginate, the hind angles rectangular not prolonged, surface extremely finely punc- tulate and with fine brownish pubescence, with semi-erect sete intermixed. Elytra as wide at base as the thorax, sides rapidly arcuately narrowing to the apex, the two apices conjointly rounded, sutural stria distinct, abbreviated in front, surface minutely punctulate, the punctures arranged in strigee slightly ob- lique, surface finely pubescent with short semi-erect not closely placed sete ar- ranged in about eleven series on each side. Body beneath sparsely punctate with coarser pubescence than above. Length .1] inch; 2.75 mm. This species resembles in form Ptoinuphagus brachyderus (Trans. Am. Ent. Soc. 1880, Pl. y, fig. 16), but is more arcuately narrowed posteriorly. Two specimens, Arizona. CHOLEVA Latr. C. alsiosa n. sp.—Oblong, rather slender, piceous, subopaque, elytra slightly fuliginous. Head rather coarsely but not closely punctate, finely pubescent. An- tenne rather slender, longer than the head and thorax, piceous, the two basal joints somewhat paler. Thorax less than twice as wide as long, narrower in front, sides moderately areuate, hind angles not rectangular, rather obtuse, surface slightly shining, moderately densely and finely, sub-muricately punctured and finely pubescent. Elytra elongate oval, as wide at base as the base of the thorax, gradually narrowing to apex, sutural stria fine abbreviated at base, surface opaque moderately dénsely punctate and finely pubescent, the punctures coarser than the thorax. Body beneath moderately closely punctate, finely pubescent. Legs pice- ous, tips of tibia and tarsi rufescent. Length .16 inch; 4 mm. ; Male.—First three joints of the anterior tarsi and the first of the middle dilated. Under side of front femora flattened, slightly longitudinally concave, without tubercle. NORTH AMERICAN COLEOPTERA. Nea This. species, the most elongate and narrow in our fauna, might be mistaken for a small Prionochxta opaca. Among our species of this genus it is most. closely related to C. lwridipennis, but is longer and dif- ferently colored and punctured. One male given me by Mr. Ulke, from the Yukon River, Alaska. PTOMAPHAGUS Illig. P. fisus n. sp.—Form Mordella-like, color pale brownish, very finely pubes- cent. Head minutely, moderately closely punctate. Thorax nearly twice as wide at base as long, much narrowed in front, sides slightly arcuate, hind angles rect- angular, dise moderately convex, very finely and rather closely transversely stri- gose-punctulate. Elytra as wide at base as the thorax,a little more than twice as long as if, sides feebly arcuately narrowing to apex, the apices slightly ob- liquely truncate, sutural stria rather deeply impressed, surface moderately closely and very obliquely strigose. Body beneath finely not closely punctulate. Mid- dle and posterior tibiee fimbriate at tip with short, equal, closely placed spinules. Length 10 inch; 2.5 mm. Male.—Posterior femora slightly angulate-dentate at middle, anterior tarsi dilated. This species is closely related to consobrinus and californicus, having sculpture similar to the former and the color of the latter. In both these species the posterior femora are simple in the male. To this spe- cies belong the Pacific forms referred by me to consobrinus, the insuff- ciency of material by the absence of males prevented me from considering it distinct. Occurs in Arizona and California (Owen’s Valley). P. Ulkei n. sp.—Form moderately robust, piceous, clothed with very fine sericeous pubescence. Head minutely punctured. Antenne rather stout, piceous, apical and two basal joints pale. Thorax one-half wider than long, sides poste- riorly scarcely convergent, apical third arcuately narrowing to the front, hind an- gles acute, slightly prolonged, surface very finely and densely strigose, finely pu- bescent. Elytra not wider than the thorax, the sides gradually narrowing to the subtruncate apices, sutural stria deeply impressed, entire, surface extremely finely and very closely obliquely strigose, clothed with fine sericeous pubescence. Body beneath finely, sparsely punctate, abdomen more closely and coarsely punctate, Legs piceous. Tibi fimbriate at tip with fine, equal, closely placed spinules. Length .15 inch; 3.75 mm. By its character this species is related to californicus and its allies, es- pecially by the dense strigosity to nevadicus. It is, however, larger, more robust, darker in color, and with a thorax longer and less narrowed in front than is usual in our species. One female specimen collected in the District of Columbia by Mr. Ulke, whose name [ take pleasure in associating with it as an evidence of my appreciation of his industry and acute observation. TRANS. AMER. ENT. SOC. XII. (22) MARCH, 1885. 138 GEO. H. HORN, M. D. HYDNOBIUWS Schmidt. H. arizonensis n. sp.—Oblong oval, dark castaneous, moderately shining. Antenne rufo-testaceous, club piceous. Head sparsely punctate; labrum deeply bilobed. Thorax more than twice as wide as long, base and apex truncate, hind angles obtuse, surface finely and sparsely punctate. Elytra as wide at base as the thorax, oval, gradually narrowing to apex, finely striate, strize punctured, the in- tervals not punctulate but transversely strigose, the 3-5-7 with distant punctures. Metasternum coarsely punctured at the sides. Abdomen more finely and sparsely punctate. Legs testaceous. Length .10 inch; 2.5 mm. One female specimen, with simple femora, belongs to the series indi- | cated by me with bilobed labrum and differs from all the species of that series by the distantly strigose elytral intervals. One specimen, Arizona. SCYDM ANID A. - SCYDMLENUS Latr. S. deformatus n. sp.—Reddish brown, shining, very sparsely pubescent. Head oval, gradually narrowed behind the eyes, then suddenly constricted to a neck, by which it is slightly separated from the thorax. Thorax conical, truncate at apex and base, as long as wide at base, apex about one-fourth narrower, surface smooth, shining. Elytra wider at base than the thorax, ovate, very little longer than wide, widest at middle, then rapidly narrower to apex, base slightly depressed, humeral umbone slightly prominent, surface shining, very sparsely and minutely punctulate. Legs moderately long, femora not strongly clavate. Length .08 inch; 2mm. Male—Antenne with first joint cylindrical, sightly narrower toward the base, second and third conical, similar, together longer than the first, fourth shorter and slightly broader, fifth transversely oval, very broad, prolonged on the upper side, sixth and seventh also transverse, narrower than the fifth, the seventh being a little narrower than the sixth, eighth smaller than the seventh, rounded, ninth broader and as long as the two preceding joints together, tenth conical, a little wider than the ninth and one-third longer, eleventh oval, a little longer than the tenth (Pl. 5, fig. 11). This species may be referred to Schaum’s stirps 4 (Germar Zeitschr. v, p. 465), by the distinct neck, the carinate mesosternum, the long second joint of max. palpi, and the subulate terminal joint, The specimens before me would have been referred to S. biformis Meekl. (Bull. Mose. 1852, ii, p. 330) but the author says that species has a four-jointed club, and that the sides of the thorax are impressed in front of base. ; Several specimens were collected by Mr. Crotch at Los Angeles, Cala. NORTH AMERICAN COLEOPTERA. 139 EROTYLID A. LANGURIA Latr. L. d@divisa n. sp.—Slender, black with slight tinge of bronze, anterior half of thorax red. Head black above and beneath with slight bronze tinge, coarsely sparsely punctate. Thorax about one-fourth longer than wide, apex and base equal, sides very nearly straight, sparsely punctate, anterior half red, posterior black, the line of division being very sinuous. Elytra with rows of moderate size, rather deeply impressed, closely placed punctures which become gradually finer posteriorly and reach nearly the tip, intervals flat with a row of distant fine punc- tures. Thorax beneath red, except at the posterior angles. Body beneath black, very sparsely finely punctate, last ventral segment more coarsely punctate. Legs black, smooth. Length .40 inch; 10 mm. (PI. 5, fig. 25a.) A species which might readily be supposed to be a variety of gracilis, but the arrangement of color seems very constant. L. gracilis seems always to have the head and thorax beneath entirely red, and while the dorsal black vitta may expand to that the entire disc above is black, there is never a tendency to divide the color transversely. Three specimens, Colorado and New Mexico. LANGURITES Motsch. L. lineatus Cast.—Body beneath entirely red. Antenne piceous, basal joint red, club very gradually formed, four-jointed. Head entirely red (a small occipital piceous spot), above and beneath very sparsely finely punctate, supra-orbital line rather distant from the eye. Thorax about one-fifth longer than wide, base slightly broader than apex, sides nearly straight, surface smooth, impunctate, color above red with a median entire vitta and very narrow side margin black; beneath red, a little more widely black at the sides than above. Scutellum piceous. Elytra piceous with a basal spot on each side red extending about one-fifth of the elytra but not well defined, disc with rows of feebly impressed punctures which become obsolete near the tip; sutural angle of elytra emarginate but not spinous. Body beneath smooth, last ventral segment coarsely closely punctate at tip. Legs red, tarsi and posterior tibiee piceous; upper side of anterior and middle femora ee with black. Length .40 inch; 10 mm. This species differs from all in our fauna in the very oblique emargi- nation of the sutural angle of the elytra (PI. 5, fig. 25b) and the an- tennal club of but four joints. One spécimen, Arizona, occurs from Venezuela northward. COLYDIID A. SYNCHITA Hellw. S. dentata n. sp.—Piceous, opaque, moderately elongate. Head rather coarsely granulate. Thorax nearly square, very slightly narrower behind, apex, - truncate, base arcuate, margin rather coarsely 8-dentate and fimbriate, dise convex with coarse tubercles. Elytra scarcely wider at base than the thorax, slightly wider posteriorly, lateral margin serrulate, dise with rows of rather coarse granules replacing the coste. Body beneath rugous. Length .10 inch; 2.5 mm. 140 GEO. H. HORN, M. D. Related to grunulata but smaller, more convex, with relatively coarser tubercles and a more nearly square thorax much more coarsely dentate at the sides. One specimen, ‘Tampa, Fla. S. obscura n. sp.—Piceous opaque, facies of diminutive Cicones marginals. Head very coarsely granulated. Thorax nearly one-half wider than long, base slightly wider than apex, sides feebly arcuate, margin narrowly explanate, fim- briate with short stiff hairs which are directed anteriorly, hind angles obtuse. disc convex, roughly granulate. Elytra not wider than the thorax, a little more than twice as long, dise with suture and four coste finely elevated and bearing short, semi-erect, curved sete, the intervals coarsely, biseriately punctate, the in- terval between the margin and costa with one series of punctures, these closely placed. Body beneath opaque, scabrous. Length .05 inch; 1.25 mm. The smallest species known to me. It is related by its costate elytra to laticollis and variegata, and agrees with the latter in the absence of an elevated line on the thorax, but differs in its much shorter and broader form and the absence of color ornamentation on the elytra. My specimen has a trace of a paler spot near the base of the first costa. One specimen, District of Columbia. E. A. Schwarz. DITOMA Illig. D. quadricollis n. sp.—Dark brown, opaque, form depressed, parallel. Antenne ferruginous, ninth joint scarcely wider than the eighth. Head rather coarsely granulate, epistoma pale. Thorax wider than long, sides straight, the margin serrulate, base and apex equal, dise with two cost each side the outer joining the apical and basal margins, the inner starting at the base curved at tip near the apex ; two short prescutellar costee which converge in front. Elytra very little wider than the thorax, suture, margin and four discal costee moderately ele- vated, the intervals coarsely biseriately granular. Body beneath paler, opaque, more finely granulate and sparsely pubescent. Legs ferruginous. Length .10 inch; 2.5 mm. This species is closely related to guadriguttuta and ornata, which are maculate on the elytra. Independently of color the former species is broader, the sides of the thorax are distinctly arcuate and scarcely per- ceptibly crenulate ; the latter species has the thorax distinctly narrower behind. In the present species the base of the thorax is less arcuate, so that the hind angles are closer to the elytral humeri. Collected by Morrison in North Carolina. LASCONOTUS Erichs. L. vegrandis n. sp.—Form slender, dark brown opaque, elytra somewhat paler at base. Antenne rufous. Head coarsely moderately closely punctate. Thorax longer than wide, sides nearly parallel and straight, anterior angles rather obtuse, posterior angles sharply rectangular, middle of dise broadly but vaguely NORTH AMERICAN COLEOPTERA. 14:1 concave, on each side of this an almost obsolete impressed line, surface densely punctate. Elytra wider than the thorax, parallel, four discal coste, suture and margin moderately elevated, intervals biseriately coarsely and closely punctate, the two rows narrowly separated. Body beneath darker than above, closely coarsely punctate. Length .12 inch; 3 mm. This species has no striking peculiarities. By its characters it is re- lated to simplex Lec., but is larger, the punctures of the intervals smaller , without thickened anterior margin of thorax, and with well defined hind angles of the thorax. One specimen collected by J. J. Rivers, near Berkeley, Cala. L. servus n. sp.—Moderately elongate, brown, opaque. Head moderately coarsely punctate. Thorax a little longer than wide, sides nearly straight, anterior angles obtuse, the posterior distinct, dise broadly longitudinally concave at middle, between this and the side margin an elevated line which joins both the apical and basal margins, hooked at each end and entering for a short distance the apical and basal ends of the median concavity, apical margin thickened, surface moderately closely coarsely punctate. Elytra very little wider than the thorax, four discal costs, suture and margin slightly elevated, intervals biseriately punctate, the punctures distinctly separated, and the rows of punctures as widely separated as the diameter of the punctures. Body beneath opaque, the prothorax cvarsely punctate, the abdomen granulate. Length .12 inch; 3 mm. nearly. Related to the preceding species and simplex, and differs from both by the presence of an elevated line between the median concavity of the thorax and the side. The thoracic sculpture seems to be a more com- plete development of that seen in referendarius. ‘he species of Lasconotus now known to me are separable in the following manner : Elytra equally costate over the whole surface. Thorax costate, or with feebly elevated sinuous lines. Thorax wider than long. Dise of thorax costate. Eyes partially concealed.............. complex Lec. Dise with sinuous lines indicated by pubescence.............. borealis Horn ‘Thorax longer than wide, disc with sinuous lines............. linearis Crotch. Thorax vaguely longitudinally concave. Thorax longer than wide. Dise without elevated line between the middle and side. Apical margin not thickened, hind angles sharply rectangular. vegrandis Horn. Apical margin thickened, hind angles obtuse................. simplex Lec. Dischwitlrlateralvelewated 16) s.s...ccsccceccosceisss+ssiescupavenseacee servus Horn. Thorax as wide as long, no lateral elevated line, apical margin thickened. referendarius Zimm. Elytra broadly longitudinally concave, the fifth interval rather strongly elevated, GHevUESt ram Omthin death, .ccscccuojeascstesaiesadoseser ctesesaecesacsswaccees pusillus Lec. 142 GEO. H. HORN. M. D. . complex Lec., occurs in California and Nevada. . borealis Horn, at Lake Superior and White Mountains. . linearis Crotch, California. . vegrandis Horn, California. . Simplex Lec., Cape San Lucas. . servus Horn, California. . referendarius Zimm., District of Columbia to Florida. . pusillus Lec., Florida to Arizona, Vancouver and Nevada. ESE Set bets eal ea et COXELUS Latr. C. serratus n. sp.—Oblong oval, brown or piceous, opaque. Head granular, with sparsely placed scale-like hairs. Antenne with joints 2-8 short, the outer ones moniliform, the third not longer than fourth. Thorax transverse, slightly narrower behind, dise convex, a vague median groove, margin narrowly serrate and fimbriate, surface granular and punctate. Elytra oval, not, wider than the thorax and about two and a half times as long, with rows of very large and deep, closely placed punctures, the intervals very narrow, surface sparsely clothed with short cinereous pubescence. Body beneath granulate, opaque. Length .08-.10 inch; 2-2.5 mm. : A very small species compared with our others, and with dispropor- tionately deep elytral sculpture. When the surface is coated with the usual exudation it seems roughly granulate. Kasily known by its small size and serrate thorax. Two specimens from California, from Mr. H. Ulke. HISTERID &. ULKEUS nu. g¢. Head deeply inserted, front deeply concave with two feeble carinze convergent above, epistoma truncate. Labrum small, trapezoidal. Mandibles stout, not prominent. Eyes convex, very coarsely granulate. Antenne inserted under a frontal margin, 10-jointed, first joint cylindrical, gradually broader externally, second joint large, thick irregularly pentagonal in outline, third joint shorter than the first, as long as the next three, elongate coni- cal, arcuate, arising from the posterior angle of the second, joints 4—9 short, trans- verse, gradually wider, joint 10 oval. not compressed. as long as four or five pre- ceding joints together, surface entirely nubescent, but partly corneous on the upper side. Thorax transverse, antennal fossa large and deep, situated at the anterior angle of the thorax between the dorsal and pectoral plates, widely open in front. Pros- ternum moderately wide, a short lobe in front, bistriate, posteriorly flattened and slightly excavated at middle. Mesosternum truncate in front, with a submarginal line very sinuous at middle. Pygidium oval, inflexed. Legs moderate in length, anterior femora much stouter than the others, the tibiz all dilatedgwithout spurs, the anterior truncate at tip, the outer edge minutely denticulate at lower half, middle and posterior tibie slightly fimbriate externally. Tarsi 5-jointed, received in badly defined oblique grooves on the upper side of the tibie; claws two, slender and feebly areuate. te | NORTH AMERICAN COLEOPTERA. 143 This genus of Histeridze must be associated with Hetzerius and its allies, Echinodes and Kretmotes, from which it differs in having the club oval, and in great part spongy pubescent over its entire surface ex- cept for a space on the upper side. In this respect it is more closely related to Seapiccelis, which is not placed in close relationship with Hetze- rius by Marseul. ‘The essential differences between the present genus and Scapiceelis are in the form of the prosternum—emarginate at tip and each side bistriate in Scapiccelis, the mesosternum sinuate in front, the anterior tibize broadly emarginate externally and not denticulate. The eyes in Ulkeus are more coarsely granulate than in any Histeride I have examined. In the preceding description the antennz are given as 1()-jointed, while all the figures of Hetzerius and Scapicceelis give but nine joints. In a careful examination of the antennze of the present genus made necessary by the sketch given, it was found that the large jomt which is usually called the first really consists of two, the suture being well marked. This, led me to an examination of Hetzerius, and on removing an antenna of H. Blanchardi the same structure became evident. In our genus Tribalister the club is solid, the entire surface pubescent and the entire antennz is constructed after the usual mode in Histeride, with the scape long. A more careful examination of the antenne of those genera in which the apparent first joint is very large and thick would probably show the structure indicated for Ulkeus and figured on the accompanying plate. U. intricatus n. sp.—Oval, convex, castaneous shining. Head smooth, vertex with two elevated lines convergent above. Thorax a little more than twice as wide as long, margin acute, outline somewhat sinuous, surface shining, a deep arcuate groove limited externally by an elevated ridge beginning opposite the base of the first dorsal stria extending forward and joining that from the opposite side, a finely elevated line starts from opposite the base of dorsal strize 2-3-4 arch- ing forward and joining a net-work at the middle, the line opposite the second dorsal very sinuous; a few large punctures bearing short erect setee placed near the lateral margin, many placed along the sinuous line, a few near the two inner lines. Seutellum small but distinct. Elytra with five entire striz, the sutural interval with a row of coarse setigerous punctures, strie 1-4 deep, with coarse, rather closely placed punctures each bearing one, often two erect sete, a very short marginal stria extending one-third from the base bearing punctures and sete; intervals smooth and‘shining. Pygidium and propygidium with sparsely placed setigerous punctures. Body beneath smooth shining, a few fine punctures on the metasternum with a few others coarser and setigerous placed near a line of seulp- ture at middle, and others along the posterior border. Abdomen smooth, first segment with a row of setigerous punctures close to the metasternum. Legs smooth, a fine marginal line on the middle and posterior tibiz beneath. Length .06 inch; 1.5 mm. (PI. 4, fig. 9-10.) 144 GEO. H. HORN, M. D. A better idea may be obtained from the accompanying drawings of the intricacies of the thoracic sculpture than from a lengthy description, for such details the student is referred to the plate. In naming the genus I desire to pay a tribute of regard to a sincere friend. an untiring collector and enthusiastic entomologist, whose kind assistance I have so often had occasion to acknowledge in this and pre- vious essays, Mr. Henry Ulke, of Washington. The specimen described is one of two, from the collection of Mr. Ulke, and was collected in Kansas, the other is from Texas. BUPRESTID A. HALECKEA L. et G. H. gentilis n. sp.—Form moderately robust as in Psiloptera Drummondi but more narrowed posteriorly, surface bright metallic green, smoother beneath than above. Head coarsely and deeply punctured, the front slightly concave. Thorax a little longer than the width at apex, base nearly one-half broader, sides regularly arcuate and gradually narrowing from the base to apex, hind angles acute, not prolonged, dise moderately convex, median line broadly impressed posteriorly, surface coarsely, deeply and moderately closely punctured, the punctures at sides coarser and deeper than those of the dise. Elytra as wide at base as the thorax and about two and a half times as long, sides gradually narrowing from the base, the lateral margin serrulate at apical third, sutural angle acute, dise very vaguely suleate without trace of strie, the surface coarsely and deeply punctured, the punctures rather finer and denser near the apex. Prothorax beneath coarsely and deeply punctate, metasternum more finely punctate, very sparsely at middle, more closely at the sides. Abdomen more finely and densely punctured, especially at the sides and apex. Length .40-.56 inch; 10-14 mm. It is with considerable doubt that this species is referred to Halecia. That it belongs to the Chalcophorides as defined by authors generally, is very plainly evident, but the genera of the group and even the divisions of the group itself seem very vaguely characterized. A specimen of the above species sent to Mr. Sallé elicted the opinion that it was either a Pelecopselaphus or a new genus. [am unwilling to place it in that genus as the tarsi are flattened from the second joint, and the first joint very distinctly longer than the second. In these respects it agrees more nearly with Hippomelas, in which I include three of our species formerly placed in Gyascutus. In the genera Gyascutus, Hippomelas and Psiloptera, the antennee are inserted in a fovea, which is partly covered by an oblique plate ; in Chalcophora there is a slight ridge, while in the species now under consideration the antennal fovez are entirely uncovered without trace of the ridge. As I feel certain that the insect cannot be placed in any of the genera cited it is placed provisionally in Halecia. As speci- 4 NORTH AMERICAN COLEOPTERA. 145 mens. collected by Dr. Palmer in Coahuila have been sent to the editors of the Biologia Centrali-Americana the species will doubtless receive at- tention from Mr. Waterhouse. Southwestern Texas and Coahuila, Mexico. Regarding Halecia Mr. Waterhouse remarks ( Biol. Cent. Am. vol. iti, pt. 1, p. 5): ‘‘ This genus, as at present constituted, is found throughout America from Pennsylvania to Patagonia.” I am-not aware of any species from the Atlantic region which can be referred to Halecia. CHRYSOBOTHRIS Esch. C. ignicollis n. sp.—Dark bronze, head and thorax bright coppery red. Clypeus broadly but not deeply emarginate. Front densely coarsely punctured, nearly flat %, more convex Q, the latter with distinct smoother spaces; occiput with smooth median line. Thorax twice as wide as long, sides strongly arcuate in front, feebly at middle, obliquely convergent behind, surface coarsely but not closely punctured at middle, very densely and coarsely at the sides, base deeply bisinuate. Elytra little wider than the thorax, sides nearly parallel, apical third obliquely narrowed, apices separately rounded, lateral margin posteriorly serru- late, subsutural costa extending from apex to middle, a deep depression at middle of base, the surface rather densely and coarsely punctured with an elevated in- distinct space at basal third, a larger quadrate space slightly behind the middle, another one-fourth before the apex. Body beneath coarsely not closely punctured, last ventral segment serrulate at the sides. Length .28—.50 inch ; 7-7.5 mm. Male.—Anterior femora toothed, the tooth serrate outwardly; anterior tibiz slightly arcuate and with un acute tooth one-third from apex; middle tibie slightly arcuate and sinuous on the inner side; posterior tibie straight. Last ventral rather deeply semi-circularly emarginate. Female.—Anterior femora as in %, anterior tibie slender slightly arcuate, without tooth; middle and posterior tibize straight, not sinuous on the inner side. Last ventral very feebly emarginate. A small species resembling contigua in sculpture. It belongs to a small group in which the male anterior tibize are toothed near the tip, all of which differ in the form of the clypeal emargination. This species is moreover noteworthy in haying the middle % tibie sinuate within. Occurs in Colorado and Uexas. SCHIZOPUS Lec. S. Sallei n. sp.—-Oblong oval, moderately robust. Head coarsely and very densely punctured. Thorax transverse more than twice as wide as long, broadest at base, sides gradually sinuately narrowing to the front, coarsely, deeply and densely punctured, a very deep oblique impression on each side. Elytra a little wider than the thorax, sides nearly parallel in front, apical half gradually con- verging, apices separately rounded, surface coarsely punctate scabrous, color » ap Pp y , ) TRANS. AMER. ENT. SOC. XII. (23) MARCH, 1885. 146 GEO. H. HORN, M. D. brownish yellow with a darker vitta extending from the umbone nearly to the tip. Body beneath more sparsely punctate than above, more shining and distinctly geneous. Femora brown, tibie and tarsi paler. Length .52 inch; 18 mm. (PI. 4, fig. 14.) The head and thorax are darker in color than the elytra, the apex of the thorax being, however, somewhat paler. The body beneath is brownish testaceous with a slight aneous lustre. Closely related to S. daetus, but differing notably in color, somewhat in sculpture, and with much deeper oblique impressions on the thorax. One specimen kindly given me by my friend Sallé, collected by M. Alphonse Thevenet at Mariposa, Cala. DYSTAXIA Lec. D. LeContei Thomson.—Typi Buprestidarum, Paris, 1879, p. 6.—Crassa, obesa, convexa. Caput sat profunde et valde confertim punctulatum. Prothorax subtrapezoidalis, antice angustior et postice latior, profunde et confertim punctatus. Seutellum subrotundatum. Elytra tenuissime et confertissime granuloso-punctata, obsolete longitudin. 6-costata, apice subacuta. Corpus subtus tenuiter punctatum, Pedes punctis aliquibus impressi. Supra bruneo-rufo aureo-viridi repercussa; antennee desunt; corpus subtus viridi-aureum, albo-villosum, pedes clare castanei, nitidi. Long 12.5 mm. The above is the description by Thomson of a form which seems from a specimen in my cabinet to apply rather to an immature and somewhat distorted specimen than to a valid species. . THRINCOPYGE Lec. T. laetifiea n. sp.—Form elongate, subdepressed, entirely brilliant metallic green, shining. Front moderately convex, coarsely, deeply and closely punctate. Thorax about one-third wider than long, slightly wider at base, sides regularly arcuate, widest at middle and with a submarginal impressed line at basal two thirds, apex truncate, base bisinuate, hind angles distinet but rather obtuse; dise moderately convex, median line slightly impressed posteriorly, surface with coarse punctures. sparsely and irregularly placed, coarser near the sides and closer near the front angles. Elytra as wide as the thorax at base, sides parallel, gradually narrowed at apical third, the margin slightly serrate near the apex, the tip trun- eate and serrulate; surface striate, strie coarsely not closely punctate, intervals flat with a single series of fine punctures. Prosternum coarsely punctured, the flanks very coarsely but not closely. Metasternum sparsely at middle, densely at the sides. Abdomen coarsely punctured, the third and fourth segments more finely and closely, the fifth more densely. Length .64 inch; 16 mm. A smaller species than our other two and more convex and differently colored. Kindly given me by Mr. A. 8. Fuller, who obtained it from Texas. Our species of Thrincopyge may be distinguished in the following manner : rv? NORTH AMERICAN COLEOPTERA. 147 Side margin of thorax bordered with yellow. Elytra with three yellow spots on each variable in size or nearly absent, the lateral margin never entirely yellOW.. .......5-ccc..0scoscsseeu scoscsess alacris Lec. Elytra not maculate, the entire lateral margin narrowly yellow. ’ ambiens Lec. Side margin of thorax not yellow. Wivirakentineliysmetallicienreenis: ..-.2ssasecacosseaseo ne -oess case scecssee laetifiea Horn. These species are known to occur as follows: alacris Lec., Texas, Arizona and Mexico. ambiens Lec., Texas, Arizona. laetifica Horn, Texas. TYNDARIS Thoms. T. cineta n. sp.—Form robust, depressed cylindrical, narrower posteriorly, black, zneous beneath, elytra with a pale median fascia not reaching the suture. Head convex, surface shining, slightly eeneous, coarsely and moderately closely punctured. Antenne black, slender (first six Joints only). Thorax a little wider than long, narrower in front, sides moderately arcuate, broadest at middle, base slightly narrower, hind angles rectangular, uise convex, opaque, moderately densely purctate, a smoother median line extending from base nearly to apex. Elytra black, more shining than the thorax, not wider at base than it, gradually narrower posteriorly, lateral margin finely serrulate posteriorly, the apices sepa- rately rounded and quadridentate, dise moderately convex, striate, strie punc- tured, intervals flat coarsely and irregularly but not closely punctate, the apical portions of the outer intervals distinctly muricate. Flanks of prothorax moder- ately densely punctate with silvery white pubescence, extreme side margin smooth, prosternum more finely punctured in front, coarsely and densely pune- tured at tip.- Metasternum and coxal plates more coarsely punctured at middle, more densely and finely at the sides and with silvery white pubescence. Abdo- men with the first segment and the middle of the other segments less densely punctured than at the sides where there is silvery pubescence. Legs black with slight violaceous lustre. Length .44 inch; 11 mm. (PI. 4, fig. 13.) This insect is of the same general form as Ptosima gibbicollis, but with a more robust facies. ‘The median elytral band is very much broader at the side margin and the posterior edge is oblique, the anterior coneave. ‘The color of the band is pale red at the side and yellowish white on the disc. The genus to which I have referred this insect is represented by two species from Chili, but the description by Thomson (Archives i, p. 168) and Lacordaire’s note (Genera iv, p. 66, note) apply so closely to our insect that I see no reason for separating it. In our series it is most closely related to Ptos‘ma, from which it differs particularly in its simple tarsal claws. One specimen Texas, given me by Mr. A. S. Fuller. 148 GEO.H. HORN. M. D. LAMPYRIDA. ZAREHIPIS Lec. In addition to the characters given by Dr. LeConte (Trans. Am. Ent. Soe. ix, p. 39) for the differentiation of the species there are some dif- ferences in the form of the maxillary palpi which seem important. Z. integripennis Lec.—First joint of maxillary palpi longer than either of the others, but not as long as tne two following together Last joint very little longer than the preceding and slightly broader at tip. Palpi entirely yellow. Z. rufiecollis Lec.—Palpi as in integripennis, the last joint piceous. : Z. piciventris Lec.—Palpi entirely piceous, the last joint wider at tip and obliquely truncate. Z. Riversi n. sp.—Head piceous, middle of front and the elypeus reddish yellow. Antenne piceous, about one-third the length of the body, basal joint pale. Palpi testaceous, last joint piceous, triangular, obliquely truncate and shorter than the preceding joint. Thorax transverse, reddish yellow, finely sparsely punctulate, margin broad, equal at apex and base. Scutellum yellow. Elytra black, scabrous, vaguely obliquely bi-costate. Abdomen moderately densely punctate, pale reddish yellow, last segment piceous. Body beneath entirely pale reddish yellow except the last ventral segment. Length .56 inch; 14 mm. One specimen % sent me by Mr. J. J. Rivers, from Berkeley, Cala. The superficial characters separating these species seem very constant, and may be tabulated as follows: Head entirely yellow. Body beneath, abdomen and legs yellow.................cs0ee0+ integripennis. Head in great part piceous. Beneath entirely yellow except the last ventral segment.............. Riversi. Metasternum and last ventral segment piceous, abdomen otherwise yellow. ruficollis. Metasternum and entire abdomen piceons, nearly black....... -piciventris. In Phengodes there are no marked palpar differences except that in fusciceps and Sallei these organs are shorter as Dr. LeConte observed to be the case with the antennee. LYCUS Fab. L. Fernaudezi Dugés, La Naturaleza, iv, p. 175, Pl. 6, figs. 5,6; Gorham, Biol. Cent. Am. ili, pt. 2, p. 2. This species occurs in Texas and Arizona. Its style of coloration is very similar to cruentus, but the black tip of the elytra is relatively smaller, and is distinetly notched where the humeral costa enters it. In form the present species is very much more expanded behind the humeri, and is of larger size. 1)? NORTH AMERICAN COLEOPTERA. 149 LYCOSTOMUS Motsch. L. loripes Chev. (Zycus) Col. Mex. Cent. ii, 148; Gorham, loc. cit. p. 6, Pl. 1, figs 8. Entirely reddish yellow, tibiz and tarsi (except the claws) antennz (except the basal joints) black. These few words will distinguish this species from any described in our fauna. Specimens probably exist in cabinets with the recent manu- script name pedalis Lec. The females have all the tibize black, in the males the front tibize are in part or entirely yellow. Oceurs in Arizona. L. sanguimeus Gorham, Biol. Cent. Am. vol. iii, pt. 2, p. 226.—Pale blood- red, antenne, tarsi and apical fourth of elytra black. Length 12-14 mm. % ; 18-20 mm. 9 In the female of this species the abdomen is more dilated “than the male and extends three-fourths the length of the elytra beyond their apices. I found this species labeled Z. posticus in Dr. LeConte’s cabinet. It has never been described by him. This species was collected by Morrison and sold to us as from Arizona, and sent to Gorham as from Sonora. LYGISTOPTERUS Muls. L. laetus Gorham, loc. cit. p. 227, Pl. xi, fig. 2.—Beneath blue-black; an- tennz, disc of thorax at middle and tip of elytra narrowly, blue-black; elytra and sides of thorax orange-red. Length 7-11 mm. This species is the one labeled by me as a Calochromus. The work on this family has at all times been done by Dr. LeConte, and my notes on his cabinet show that this species bears the manuscript name Lygist. ignitus. Arizona, Morrison. LYCAINA Dugés. . L. marginata Gorham, loc. cit. p. 209, Pl. xii, fig. 8.—Piceous, sides of thorax, lateral margin of elytra, anterior and middle femora orange-yellow. Length 6-7 mm. The dise of the elytra has sometimes a bluish tinge. This insect fig- ures in Dr. LeConte’s cabinet among the Lygistopteri under the name of L. debilis. Having given but little attention to this family any ex- pression as to the validity of the genus proposed by Dugés and accepted by Gorham, would have but little value. ~ Collected in Arizona by Morrison. 150 GEO. H. HORN, M. D. L. disecoidalis n. sp.—Beneath piceous ; antenne black, under side of basal joint yellow; thorax piceous at middle, broadly yellow at the sides, median im- pression deep but narrow, surface rather shining, sparsely finely punctate and rather sparse:y pubescent; elytra orange-yellow, with a common blue-black oval space beginning at the apex and reaching nearly the middle, surface not striate but with three faintly elevated coste, intervals rather coarsely punctate, surface fulvo-pubescent ; anterior and middle femora orange-yellow. Length 7-7.5 mm. This species differs in the sculpture of the elytra from both the de- scribed species as well as in their color. Three specimens, southwestern Texas. In the work above, cited p. 237, Mr. Gorham is disposed to refer Hros humeralis and trilineatus to Plateros. For reasons above given I prefer publishing the opinion without comment. CHAULIOGNATHUS Hentz. C. ineptus n. sp.—Reddish yellow, head, tibiz, tarsi, outer half of femora and apical third of elytra black. Antenne long, slender, flattened, yellowish, basal joint piceous, third joint a little shorter than the fourth, outer joints slightly fuscous. Head oval, black, opaque, moderately densely punctured, eyes moder- ately prominent. Thorax much wider than the head, broader than long, sides regularly arcuate and reflexed, surface moderately closely punctate sparsely pu- bescent, dise usually with three black spots which are sometimes absent or con- fluent. Elytra scarcely wider than the thorax, parallel, the apices obliquely rounded, moderately closely punctate, sparsely pubescent, apical third black, each black space arcuate in front. Scutellum reddish yellow. Body beneath yellow, the terminal segment of 4% black. Length .60-.64 inch; 15-16 mm. This species is most closely related to profundus in form, but the two differ in coloration, the latter being scarlet, including the head, antennze uniformly brown and legs entirely black. Occurs in Arizona (Morrison ). C. misellus n. sp.—Form slender, pale yellow, head and legs black. Head oval, black, subopaque, finely punctulate, sparsely pubescent, gene and mandi- bles yellow. Antenne slender, piceous, nearly as long as the entire body in the male, third joint very little shorter than the fourth. Thorax wider than the head, as long or a little longer than wide %, broader than long Q, sides feebly arcuate, rather broadly reflexed, dise nearly entirely smooth and shining. Elytra wider than the thorax, covering entirely the abdomen. in both sexes, parallel,,apices separately rounded, surface opaque, sparsely pubescent, moderately closely and deeply, not coarsely punctured, the sculpture more rugose toward the apex, color sometimes entirely pale yellow, often with a small piceous spot on each elytron one-third from apex. Body beneath pale yellow %, with the coxz and posterior portion of metasternum brown; in the Q the basal portion of each ventral seg- ment is brown. Legs black. Length .42-.50 inch; 10.5-12.5 mm. This species resembles discus Lee., and differs especially in the black head, and the absence of discal thoracic spots. In discus both sexes are pale beneath. Occurs in Arizona. AY! NORTH AMERICAN COLEOPTERA. 151 CLERID &. 2 TILLUS Oliv. T. occidentalis Gorham, Biol. Cent. Am. iii, pt. 2, p. 129, Pl. ix, fig. 1. This species occurs in Texas and Arizona. It is rather small (3-5 mm.) slender in form, color usually piceous, the elytra with a small oval ivory- like spot at base and an oblique band of similar color at middle. The color varies, being in most cases entirely piceous except the spots and band, but specimens are before me entirely reddish yellow with only the portion of the elytra behind the band piceous. Rarely the basal ivory spot is indistinct. Unaware of the above name the species has been labeled Jaetus in Dr. LeConte’s cabinet. COLYPHUS §pin. C. signaticollis Spin. Clerites i, p. 135. Cc. cinctipennis Spin. id. p. 136. These two species are said by Spinola to have been collected in Cali- fornia. By reference to the above cited descriptions, the specimens were obtained from the Dupont collection. I have already on several occa- sions indicated the erroneousness of the localities given by Dupont, and now these two ‘seem to be rather abundant in the eastern regions of Mexico. — I am quite sure that all the Dupont specimens attributed to California are from southwestern Texas and the adjacent regions of Mexico. The two species above cited should be stricken from our lists. Two other species are mentioned by Spinola: C. rufipennis (p. 136) and C. interceptus (p. 137) as from California. These also are Dupont specimens, but no mention is made of them in the Biologia, and, as with the preceding two species, the locality is probably doubtful. CYMATODERA Gray. C. turbata n. sp.—Rufo-testaceous, elytra piceous with a broad fascia slightly ante-median and apical fourth rufo-testaceous. Antenne slender, a little longer than the head, joints 2-3-4 short, conical, equal, joints 5-10 longer than these, joint 11 one-half longer than the tenth. Head rather coarsely not closely punc- tate. Thorax cylindrical, nearly twice as long as wide at apex, slightly narrower at base than apex, behind the middle on each side compressed, surface sparsely punctate, sparsely clothed with erect yellowish hairs, ante-scutellar impression feeble. Elytra wider than the thorax, parallel, apices conjointly rounded, dise with rows of coarse, closely placed punctures which are gradually finer to the tip, intervals narrower than the rows of punctures, surface sparsely clothed with semi- recumbent and with erect yellowish hair. Body beneath sparsely punctate. Legs somewhat roughly punctured. Length .16-.26 inch; 4—6.5 mm. 152 GEO. H. HORN, M. D. T am unable to detect any sexual differences in the specimens before me, the last abdominal segments of the dorsal and ventral aspect being oval at tip. There is considerable variation in the color of the elytra, although the type of coloration is preserved. In those fully colored about one-fourth at base is piceous, then a broad pale band, following the latter another broad piceous band, the tip for about one-fourth is pale. The tendency is to become paler. The basal piceous band is gradually lost, then the . post-median piceous band becomes narrower so that the elytra are finally rufo-testaceous with a very narrow piceous band behind the middle. This species belongs in our series near puncticollis, and differs in its longer thorax, less coarsely punctured elytra and different coloration. Occurs in southwestern Texas, C. texana Gorham, Biol. Cent. Am. iii, pt. 2, p. 134. This is the species referred to by me but not named (Trans. Am. Ent. Soe. v, p. 230). It is closely allied to fuscula Lec., and differs in the presence of the sub-apical pale spot. ‘lhe variety referred to by Mr. Gorham as having no apical spot is without doubt the true fuscu/a Lee. If the two forms are really identical the latter name should prevail. C. sirpata n. sp.—Form slender, piceous, legs and antenne brown, elytra testaceous with piceous fascia. Antenne slender, brown, joint 2 not longer than half the third, joints 3-10 subequal, 11 longer. Head coarsely, deeply and mod- erately closely punctate, sparsély pubescent.. Thorax cylindrical, nearly twice as long as wide at apex, slightly contracted behind the apex ana more decidedly compressed on each side behind the middle, surface coarsely, moderately closely punctate, sparsely pubescent, ante-scutellar impression feeble. Elytra wider than the thorax, humeri distinct, sides straight, very slightly divergent, apices con- jointly rounded, disc with rows of coarse moderately closely placed punctures which become gradually finer toward the apex but do not reach the tip, intervals much wider than the punctures with a row of fine punctures, sparsely pubescent ; color pale testaceous, humeral umbone piceous, a narrow piceous fascia one-third from base which extends along the suture to the seutellum and along the latera] margin to the base, a broad piceous fascia behind the middle with the anterior and posterior margins undulating, about one-fifth of the elytra at tip is testaceous. Body beneath piceous, abdomen sparsely punctate. Length .32—.38 inch; 8-9.5 mm. Male.—Fourth ventral segment densely punctured at middle. fifth very feebly emarginate, sixth shorter truncate at tip and deeply longitudinally sulcate at mid- dle: last dorsal narrower than the last ventral, oval at tip and entire. Female.—Last ventral very short oval, last dorsal narrower oval at tip. This is also one of the species merely indicated by me (Trans. Am. Ent. Soc. v, p. 230), but not fully described from the absence of the male. In its general appearance it resembles undulata, and might readily be considered a color variety, but the structure of the antennz NORTH AMERICAN COLEOPTERA. 153 and the male sexual characters prove its distinctness. By its antennal structure it should be associated with xanti, but that species is entirely brown and of much more robust form. Occurs in southwestern Texas. C. fallax n. sp.—Form elongate, rufo-testaceous, head, thorax and broad post- median elytral band piceous. Antenne pale brown, joints 2-10 very nearly equal, eleventh longer. Head coarsely and densely punctured, subopaque, sparsely pubescent. Thorax subeylindrical, slightly narrower at base, twice as long as wide at apex, very slightly contracted behind the apex, a little more so in front of base, surface coarsely punctured, the punctures coarser than on the head but less dense, basal marginal groove distinct, ante-scutellar impression feeble, surface sparsely pubescent. Elytra elongate oval, gradually wider from the humeri which are not prominent, surface with rows of very coarse moderately closely placed punctures which become gradually finer posteriorly but do not quite reach the apex, intervals very narrow with a row of distant fine punctures, sparsely pubes- cent. Body beneath rufo-testaceous, moderately densely finely punctate. Legs yellowish testaceous. Wings abortive. Length .32—.46 inch; 8-11.5 mm. Male.— Fifth ventral deeply semi-circularly emarginate, sixth ventral elongate, parallel, the sides arcuate at tip, the apex deeply quadrangularly emarginate; last dorsal narrower than the ventral, elongate oval, truncate at tip and with a slight notch at middle. Female.—Uast ventral short, semi-circular, smaller than the last dorsal which is more elongate oval and prolonged. The elytra have a little variation in color. The post-median fascia is always present, and usually broad with irregular edges. Rarely there is a trace of a fascia at basal fourth and another in front of the apex. This species might be supposed to be a variety of undulata, but the elytra are much narrower at base, more oval, and but a small trace of wings remains. ‘The sexual characters are of the type of ovipennis and augustata. From these last two species fallax differs in its more elon- gate elytra with stronger sculpture and with the head and thorax much more densely punctate. Occurs in southwestern Texas. From my memory merely, /ul/az resembles very closely Mr. Gorham’s . determination of augustata. That author after having placed augustata, ovipennis and pilosella in synonymy makes the following remarks: ‘“ The difficulty of determining the species of this genus is so great that I doubt the correctness of the synonymy given above, as adopted by American describers” (Biol. Cent. Am. iii, pt. 2, p. 138). That there is difficulty I admit, but it is to be regretted that some little attention was not given to many characters indicated by me (Trans. Am. Ent. Soe. v, p. 221), of which all mention is omitted in the Biologia. Regarding the synonymy, TRANS. AMER. ENT. SOC. XII. (24) MARCH, 1885. L54 GEO. H. HORN, M. D. no American describers are responsible for it, the only mention of such being in the ‘ Check List’ by Mr. Crotch, for which no more authority exists than is claimed in the preface. CLERUS Fab. Our species of this genus are said by Mr. Gorham (Biol. iii, pt. 2, p. 148) “not to be typical and ought perhaps to be assigned to Thanasimus. This is true of a certain number (tr7/asciatus, repandus, undulitus and dubius), but not of the vast majority. In fact, Mr. Gorham includes sphegeus, spinolae and nigripes in Clerus as restricted by him. Clerus mexicanus Lap. This species has for some time appeared in our lists. I have never seen a specimen from within our faunal limits and am unaware of any authority for its introduction. C. arachnodes Klug. 'This species is placed as a synonym of sphegeus by Mr. Gorham (Biol. Cent. Am. iti, pt. 2, p. 150). C. viduus Klug. This species is simply indicated from ‘‘ Amerique Septentrionale,’ and as it is well known from Mexico and not at all in our fauna should be removed from our lists. C. quadriguttatus Oliv. Of this species nigrifrons and nigripes Say, are synonyms. . C. thorucicus Oliv. This species is referred by Mr. Gorham to Paece7- lochroa Chey., but the latter author says that this genus has 9-jointed antennee, which is certainly not true of our species. Cc. decussatus Klug, Abhand. Akad. Berl. p- 296; Hopfneri Spinola, Clerites 1, p. 256, Pl. xxv, fig. 1. Form of ichnewmoneus, black, opaque, finely pubescent, elytra with an arcuate fascia at middle interrupted at the suture. behind this a common triangular spot, near the apex a narrower transverse fascia interrupted at suture, all of reddish yellow color. Length .38 inch; 9.5 mm. The form described and figured by Spinola has the elytra in front of the median fascia, the thorax and head reddish. Specimens are noted by Mr. Gorham (Biol. Cent. Am. iti, pt. 2, p. 155) in which the anterior portion of the elytra is black. My specimen goes further in being en- tirely black. Similar variations in color seem quite common in Clerus, notably in our C. abruptus Lee. One specimen, Arizona. C, oecreatus n. sp.—Form of rosmarus, but slightly more robust, black, shin- ing, sparsely hairy, antenne, tibiz and tarsi rufo-testaceous, elytra with a median band of cinereous pubescence broadly interrupted at the suture. Front rather flat, vaguely bi-impressed, head very sparsely punctate. Thorax slightly longer than wide, ovate, slightly tubulate at base, post-apical transverse impression dis- tinct, median line not distinct, surface sparsely punctate, punctures coarser and more numerous along the apical margin. Elytra wider than the thorax, sides parallel to middle then slightly broader, apices conjointly rounded, surface shin- ing, obsoletely punctate at basal half, more evidently punctured posteriorly; the NORTH AMERICAN COLEOPTERA. 155 . median band of cinereous pubescence begins at the lateral margin and extends to the middle line of the elytra, a few cinereous hairs about the apex. Body beneath shining, coarsely but sparsely punctured. Length .18 inch; 4.5 mm. A small species which should be placed near quadriguttatus Ol. (n- grifrons Say), from which it differs by its more robust form, almost smooth surface and the color of the legs. One specimen, Kansas. PTINID &. SINOXYLON Dufts. §. simplex n. sp.—Cylindrical, piceous, elytra brownish. Antenne 10- jointed, pale yellow. Maxillary palpi with last two joints equal. Head opaque, tubereulate. Thorax wider than long, slightly arcuately narrower to the front, hind angles rounded, the anterior declivity roughly asperate, posteriorly densely punctate. Elytra not wider than the thorax, apex gradually declivous, not mar- gined nor dentate, surface very coarsely and closely punctate, the punctures of the declivity being coarser and denser than those near the base of the elytra, su- tural region slightly elevated, more conspicuously in the declivity. Body beneath moderately densely punctate, sparsely pubescent. Length .26 inch; 6.5 mm. This species belongs to the first division of the genus as defined by me (Proc. Am. Philos. Soc. 1878, p. 542) from all the members of which it differs in the simple elytral declivity, excepting dinoderoides, which is much smaller and has the maxillary palpi otherwise formed. Occurs in southwestern Texas. The species referred by us to Sinoxylon including the one above de- scribed are said to belong to Xylopertha by Mr. Gorham (Biol. Cent. Am. iil, pt. 2, p. 215). [am not now prepared to investigate this ques- tion, and leave the species as they at present stand. Our species of Am- phicerus are referred to Apate. S. floridanum n. sp.—Cylindrical, piceous, moderately shining, elytra cas- taneous. Antennee pale yellow, 10-jointed, the five joints of the female very small. Head closely punctate, subopaque. Thorax broader than long, slightly narrower in front. declivity in front roughly tuberculate and with the tubercles at the front angles slightly hooked, dise at middle closely punctate, posteriorly and at the hind angles quite smooth. Elytra a little narrower than the thorax, moderately coarsely but not closely punctate, declivity flat, on each side tri-tuberculate, the surface coarsely and evenly punctate. Body beneath sparsely punctate and pubescent. Length .12 inch; 3 mm. This species is related to and should be associated with texanum and sextuberculutum. In the former the punctures of the declivity are few in number and arranged near the suture, leaving a smooth space near the tubercles. In the second species the declivity is quite smooth and the suture well elevated. In the present species the declivity is very flat and the coarse punctures very evenly disposed over its entire surface. One specimen, Florida. Mr. F. G. Schaupp. 156 GEO. H. HORN, M. D. CHRYSOMELID 2. CHRYSOCHUS Redt. Cc. robustus n. sp.—Brilliant metallic blue with a slight tinge of green, form oval robust. Antenne piceous, basal joint blue. Head sparsely punctate. Thorax about one-third wider at base than long, apex a little wider than the length, sides feebly arcuate, surface very sparsely punctate. Elytra wider than the thorax, widest at the humeri which are prominent, sides arcuately narrowing to apex, surface irregularly, moderately coarsely and sparsely punctured. Body beneath bright blue, as above, very sparsely punctate. Length .44 inch; 11 mm. This species is much more robust than either cobaltinus or auratus. In these the elytra are parallel, in the present species they narrow from the base. The thorax in robustus is wider from the apex to the base, while in the other two species the sides are almost parallel posteriorly. Arizona, collected by Morrison. The three species may be correlated in the following manner : Sides of thorax subparallel posteriorly, the punctuation of the surface conspicuous. Surface color brilliant cupreous or golden ; punctures of elytra arranged in con- HIB EC UN OW Seacseats saeeecscbcnet sete ceeccne ens caqecnersetseeeecrae=/cucseiereanaeetents auratus. Surface color cobalt blue; punctures of elytra irregular............ cobaltinus. Sides of thorax gradually wider from apex to base, the surface color blue with a BINGHbAIN LE /OF J QTCOM 2... 20 .2s evs three ; middle and posterior tarsi received in grooves, those for the mid- simple, the first as long as the next dle pair are on the metasternum and divergent, eauhine the hind coxe ; those for the hind pair extend from the base of the first ventral segment to the posterior margin of the third and are also divergent. 206 GEO. H. HORN, M. D. The characters above given are essentially the same as those given by Dr. LeConte, the only other point in which it is observed to differ from Throscus is in the sudden oblique narrowing of the anterior tibiae at tip. There is but one species at present known. P. Hornii Lec.—Form rather elongate, dark brown or piceous, moderately shining, surface clothed with fine short silken pubescence. Head moderately coarsely and closely punctate, front convex. Thorax nearly twice as wide as long, form rather broadly campanulate, the sides rather deeply sinuate at middle, the hind angles acute and prolonged over the humeri of the elytra, not carinate; disc moderately convex, slightly depressed at base, surface rather coarsely and closely punctate, a little more finely in front. Elytra a little narrower at base than the thorax, then slightly wider posteriorly, after which they narrow slightly to apex, surface striate, strize punctate, the punctures a little more evident at apex, inter- vals flat, finely alutaceous with obsolete punctures distantly placed in a single series. Prosternum coarsely sparsely punctate, the strize deep, slightly divergent and entire. Metasternum coarsely and closely punctate. Abdomen less coarsely and less closely punctate, the last segment more finely. Length .12-.18 inch; 3-4.5 mm. The specimens examined show no sexual differences except that the males are somewhat more slender. Occurs in California and Nevada. DRAPETES Redt. Antenne serrate from the fourth to the tenth joint, received in well defined grooves in the anterior portion of the prosternal suture. Tarsi not received in grooves either in the metasternum or abdomen. As the characters of the genus are so thoroughly given in many places, the few words above will suffice at this time. Our species are few in number, and as they differ remarkably in color this character can be made use of for separating them, the structural characters will be given in the specific descriptions. Thorax black. Elytra with a broad sub-basal red fascia................0+e0es00 oo Feminatlus. Elytra with humeral and sub-apical red spots........quadripustulatus. IDI Amey Chel nonellyy [ol kv¥e) Keedocbecconcteoptoos0s ocoUd oaSogactocdeS roauarebosde ncreonodc nitidus. Mhoraxened elytra blackracsases NORTH AMERICAN HYMENOPTERA. Zot Carolina, Georgia, Kentucky, Lllinois, Wisconsin, Colorado, California, Oregon, Washington Territory and Vancouver’s Island. The variations in the apical teeth are best shown by the figures; other specimens, in- eluding hella of Cresson, resemble Nortoni, while several agree with Dahlbom’s figure and description. The color is blue, with more or less green and some purple reflections ; some specimens are deep blue with much purple, others entirely emerald-green with no blue; basin of face punctured ; head and thorax densely punctured ; abdomen with the punc- tures more or less separated, close on the dorsum of the second segment in some specimens, in others separated. One or two specimens have a few scattered finer punctures between the larger ones on first segment. The lateral view of the third segment, the pits and the groove, as in nitidula. Radoskovsky’s figure gives an excellent idea of the species. Chrysis inflata n. sp.—Head and thorax emerald-green with more or less deep blue reflections, closely and equally punctured; basin of face punctured ; abdomen emerald-green with deep blue and some dull purple on the dorsum, the blue more or less broadly diffused, sometimes covering a larger part of the second and third segments; abdominal punctures close and about equal; pits medium, rounded, distinct, contained at the bottom of a deep declivity which forms the anterior margin of the groove, and which is somewhat swelled, reaching a little towards the apex and overhanging the lateral margin nearly or quite to the base of the segment; teeth strong; wings hyaline, slightly infumated; 6-9 mm. % Q. Southern California, Colorado and Utah; eight specimens. In one specimen the swelling above the groove is much exaggerated. Chrysis Nortoni n. sp.—From deep blue with green and slight purple re- flections to emerald-green with very little blue; head and thorax densely and equally punctured ; abdomen with the base of the second segment and sometimes the third blue, or darker green; punctures a little separated, about equally dis- tributed, in some specimens close on the dorsum and others with finer punctures seattered among the larger, on portions of the first segment; pits small, subdis- tinct and rounded, or sometimes somewhat confluent, contained in a medium groove, which ends near the base of the segment; teeth greatly turned down; wings hyaline, slightly infuscated; ‘6-9 mm. 4% Q. Canada, Maine, Pennsylvania, Illinois, Colorado, Montana, Washine- ton Territory, Oregon; seventeen specimens. The apical teeth vary, some specimens have the outer and median teeth much farther apart than the median, and vice versa. Chrysis peracuta n. sp.—Blue and green with dull purple reflections; basin of face striated ; head and thorax densely and equally punctured ; abdominal punctures somewhat separated, largest on the first segment, close on the third; pits medium, or a little large, distinct and close, in a shallow but distinct groove, _ ending on each side near the base of segment; wings hyaline on the extreme margin, broadly infuscated on the middle and somewhat towards the base; apical margins are thin, sharp, the teeth pointed; 8-10 mm. 238 S. FRANK AARON. Kentucky, Georgia, Florida; four specimens. In the form of the margins and in the general shape of the third segment the species is allied to C. fasciata Fabr., from Mexico, but differs by having distinct pits contained in a deep groove. The abdomen of this species is con- siderably longer than the head and thorax combined. Chrysis tripartita n. sp.—Head and thorax, with the metathorax and abdomen, emerald-green with very slight dull blue and darker green reflections: mesothorax deep blue with slight dull purple reflections; basin of face very nar- rowly striated ; closely and about equally punctured all over, on the abdomen the punctures a little more separated ; posterior surface of the postscutellum as viewed laterally not evenly rounded, but angled and almost projecting; pits medium, rounded, distinct, in a shallow groove that ends about midway on the lateral mar- gin, or a little nearer the base of segment; apical teeth short, broad, round at the apices, the median teeth somewhat longer than the outer, much closer together and separated by a deeper emargination than the median and outer teeth; lateral margins about straight; wings infuscated, paler on the outer margin; 10.5 mm. long. Q. Arizona; one specimen. The position of the apical teeth resembles that of (C. pelucidula, plate ix, fig. 58. The deep blue mesothorax divides the anterior and posterior portions of the insect, which are bright green, into three parts of color; a very odd character. Chrysis propria n. sp.—Green with slight blue reflections, some specimens with distinct brassy reflections; basin of face striated; head and thorax closely and evenly punctured; abdomen with the punctures varying in different speci- mens, in some close and equally distributed, in others separated and with finer punctures scattered between; punctures close on the third segment in all the specimens, in some subconfluent; pits medium, in one specimen a little large, dis- tinct, rounded, within luteous, semi-transparent when held against the light; groove shallow and with the pits ending on the lateral margin near the base of the segment; wings almost clear hyaline, a little infumated, in some specimens the radial cell is infuscated; 6-7.65 mm. % Q. Montana, California, Colorado and Arizona; eight specimens. Chrysis lauta Cresson, Proc. Ent. Soc. Phila. iv, 310, 1865. Chrysis prasinus Cresson, loc. cit. Chrysis pulcherrima Cresson, loc. cit. 311. Eleven specimens ; the localities are Washington Territory, California, Colorado, Arizona and Texas. The varieties (all of which we have in the collection together with the gradational forms) are shown in Mr. Cresson’s excellent descriptions. We have not one of the three types in the collection ; however, the descriptions agree perfectly. ‘The median space of the mesothorax in prasinus being deep blue and black is very odd, but it cannot be considered a constant or important character. Our specimen of prasinus proper is from Arizona, not from Colorado. One specimen of dauta, from Colorado, is emerald-green with very bright NORTH AMERICAN HYMENOPTERA. 239 golden and brassy reflections with the median space on mesothorax ante- riorly black in the middle. An extreme variety from Texas is deep blue with very little green. Basin of face in some specimens narrowly striated or smooth, in others broadly striated. In pulchertina the appressed white pubescence on each side of the face is not a constant character, as specimens have to a less degree, and in some it is wanting altogether. Pits small or moderate, distinct or confluent, rounded or oblong, contained in a distinct, sometimes shallow groove, ending midway on the lateral margin. In one specimen the pits are entirely confluent, forming a broad, deep sulcus upon the surface ; 7-10 mm. This is the most variable species belonging to the genus Chrysis with which I am acquainted, but the variations are not fairly correlated and are gradational, and therefore cannot properly separate the forms. G.—Apical margin of the abdomen serdentate. Abdomen closely (often densely) punctured on the dorsum, the punctures some- times a little more separated on the sides. Lateral margins of third segment strongly arched outwardly towards the base and sinuate just before the outer teeth.............0.. ccsessees coeces cecees texana. Lateral margins of third segment broadly sinuate or arched inwardly: pits con- tained in a deep groove, caused by the swelling of the posterior margin of HGKADMLET ONAL GAs en scmiclsseees nates sens bs cocnssdceswacivoeesas ts eeecu evento = averse . Clara. Lateral margins slightly bisinuate, straight or bowed outwardly, the pits con- tained in a moderately shallow groove, the margin of area not swelled. The larger separated punctures on the sides of the first and second abdominal segments with the intermediate spaces mostly smooth, perhaps a very few smal lerqpun cthures Mere van abHELe msec ssadascteseasateasccelseeoees senses intricata. The larger separated punctures on the sides of the first and second segments with the intermediate spaces rather closely beset with finer punctures. sexdentata. Abdomen with the dorsal punctures sparse, well separated. Punctures on the third abdominal segment nearly equal over the entire surface. pennsylvanica. Punetures on the middle of the posterior portion of the anterior area of third segment, just above the pits, very small and dense as compared with the TESb)-<.c0c7<5 wiostaseeesuceessiecs besser Gauenadl ile sousn eseaaeesstsecedeontoesws smaragdula. Chrysis texana Gribodo, Ann. Mus. Genov. xiv, 329, 1879. Four examples from Texas. Following are most of the essential points from Gribodo’s description, it being too long to give verbatim : Green, not very bright; head and thorax very closely, abdomen more sparsely punctured, all the punctures of moderate size, but the first segment of abdomen more heavily punctured; abdomen scarcely longer than the head and thorax taken together, perfectly cylindrical, apex as broad as base; anal margin sexden- tate, teeth robust, triangular, somewhat equal; emarginations quite variable in form in different specimens, but always nearly equal in size; wings subhyaline, infumated. 240 S. FRANK AARON. © .—Anterior area of the third dorsal segment of the abdomen sometimes slightly depressed, a little thickened and swelling above the anteapical series; anal margin low. *, Larger, less punctured and the third dorsal segment of abdomen, both on the anterior area and the anal margin showing on both sides the same moderately convex surface (that is to say the anterior area before or above the anteapical row not elevated, nor thickened, nor swelling, and the anal margin not depressed nor low, the foveole of the series large, irregular and confluent, forming a broad and deep, transversely curved fovea. Texas. Length S-11 mm. The color is green, with more or less blue reflections, deepest on the dorsum of abdomen ; a few scattered fine punctures between the larger separated punctures on the base of the first abdominal segment. The median teeth are twice as long as the outer teeth and longer than the second pair, but they are all equal in position, and I think that is the meaning that the above description intends to convey. Basin of face narrowly smooth, or with very fine striations in the middle. The pits in two specimens are distinct, moderate and with the shallow groove ending the base of segment. In another specimen the pits are subconfluent, and in the remaining specimen are entirely confluent on each side of the dorsum, divided in the middle and distinct and separated above the lateral margin. All of my specimens are males and agree with the description of Gribodo, but has he not taken the following species, clara, which is found in Texas, for the Q of his tecana? The teeth and general ap- pearance are much alike, but male specimens of clara have been found to agree with the females, and are almost certainly distinct from texana ; and, furthermore, I am inclined to believe that the true female of texana will resemble the male in the structure of the third segment. Chrysis clara Cresson, Proc. Ent. Soc. Phila. iv, 313, 1865. Nine specimens from Washington ‘Territory, Colorado, Arizona and Texas (the specimen from Colorado is the type). The color varies from emerald-green with bright brassy reflections to darker green with blue reflections. Basin of face punctured, a smooth space in the extreme middle. The larger punctures on the basal portion of the first segment with the space between them having scattered, finer punctures, also a patch of finer punctures on each side of the dorsum of the first segment. The swelling of the posterior margin of the anterior area is more exag- gerated in some specimens than in others, and somewhat overhangs the pits. Pits rather large, distinct, rounded, in some specimens subconfluent ; the groove ends on the lateral margin near the base of segment. The apical teeth vary slightly in position, the general form as seen from above resembles the figure of smaragdula. The figure representing this spe- cies is drawn from the type specimen; 10 mm. % 9. NORTH AMERICAN HYMENOPTERA. 241 Chrysis intricata Brullé, Nat. Hist. des Ins. Hym. iv, 25, 1846. Seven specimens in the collection; from the localities Iowa, Georgia, Texas, Arizona, California and Dakota. From deep blue with very slight green reflections to dark green with blue and bright green reflec- tions. Basin of face punctured, in some specimens with a narrow smooth space in the extreme centre. Head and thorax densely pune- tured, the punctures here and there confluent. Abdomen punctured rather closely, except on the first segment and the sides of the second, where the punctures are larger and separated. In one specimen the punctures are uniformly close and equal over the entire surface of the abdomen, in another they are larger on the extreme base of the first seg- ment, but close. In a greater number of the specimens there is a patch of close, finer punctures on each side of the dorsum of the first segment. Pits medium, distinct, or subconfluent in certain specimens. Posterior margin of anterior area of third segment not swelled, but sometimes a little advanced, or sublobed in the middle. The groove not deep, but distinct, ending on the lateral margin quite near the base of segment, one specimen with the pits semi-transparent, luteous, the same color spreading upon the apical portion of the lateral margin and coloring slightly the apical margin. There is little variation in the position of the apical teeth; some specimens have the outer teeth blunt, less pro- duced. Wings in one specimen clear hyaline, in the others infuscated or infumated; 8-9.5 mm. 4% 9°. Chrysis sexdentata Fabr., Ent. Syst. Suppl. 258, 20, 1798; Brullé, Nat. Hist. des Ins. Hym. iv, 25 (?); Dahlbom, Hym. Eur. ii, 324. One specimen from Georgia. I am almost sure about the determina- tion from Brullé. I have supposed it to be the Fabrician species. It is difficult to determine whether Dahlbom describes the same species or not. The punctures of the head and thorax are large, very dense, but only here and there confluent. Basin of face punctured. The abdominal punctures are largest and separated on the first segment, and together with the punctures on the sides of the second have finer punctures be- tween them. A patch on each side of the dorsum of first segment closely and finely punctured ; the entire dorsum of the second segment and all of the third with rather close, small, equal punctures. Pits nu- merous, sinall, round, distinct, seemingly deep, contained in an equal shallow groove, ending on each side near the base of segment. The apical teeth are about equal in position, the median ones largest, and the emarginations between them deepest; the second pair are more acutely pointed, the emarginations rounded ; the outer teeth scarcely deserve the TRANS. AMER. ENT. SOC. XII. (385) NOVEMBER, 1885. 242 S. FRANK AARON. name, being but very slightly produced angles. In this last character alone the species does not resemble sexdentata as described, but the form of the outer teeth in all the species varies considerably in form, and prob- ably this is an extreme form. The lateral margin is straight. Wings hyaline, a little clouded; 10 mm. The specimen is rather long and slender, hardly tapering at the apex. Chrysis pennsylvanica (Lep.) Brullé, Nat. Hist. des Ins. Hym. iv, 24, 1846. One specimen from Florida (Philadelphia, Brullé). Deep blue with dull purple and bright green reflections, elegant reddish purple on the abdominal sutures. Basin of face punctured, a narrow, smoothed space in the centre. Head and thorax with the punctures somewhat separated, with some scattered finer punctures on the prothorax. Abdominal punc- tures well separated, equal. Pits rather large, deep, somewhat confluent on the dorsum, distinct and separated on the sides; pits forming the groove, which ends on each side near the base of segment. Wings sub- hyaline, a little clouded, the nerves somewhat rufescent; 10mm. @. The mesothoracic interlobular lines are called crenulated, by Brullé, on account of being cut by the punctures. Chrysis smaragdula Fabr., Ent. Syst. ii, 239, 1793; Dahlb., Hym. Eur. ii, 337. Five specimens from the localities: Pennsylvania, Delaware, North Carolina, Florida and Kentucky. From emerald-green with blue reflec- tions to deep blue and purple with green reflections ; the abdominal sutures bright reddish purple. Basin of face punctured, a little smoothed in the centre. Head and thorax closely punctured, on some portions the punctures are very slightly separated. Abdomen with the punctures about equal and equally separated over the entire surface of the first and second segments ; third segment with the punctures a little smaller and closer ; a patch of fine, close punctures on the middle of the posterior margin of the anterior area just above the pits. Pits rather large, shal- low, distinct, in some specimens; in others subconfluent on the sides forming the rather shallow groove which ends on the sides near the base of segment. The apical teeth vary somewhat in relative position in dif- ferent specimens. Wings subhyaline; 13-15 mm. The largest North American species representing this genus. ; Chrysis inzequidens Dahlb., Hym. Eur. ii, 334, 1854. This species is not in the collection and is unknown to me. Dahlbom’s description reads as follows: rrp NORTH AMERICAN HYMENOPTERA. 243 “Of moderate size, two and two-thirds lines. Habitat—New York. A single specimen. Almost the size of Chrysis nitidula % , the body of moderate size as to thickness, above green-blue, the head in front, pectus, and feet green, the venter strongly vaulted, for the most part concolorous; tarsi fuscous; head and thorax closely but moderately punctured; facial cavity of the head rectangular, punc- tured, cariaceous, of moderate size, margined above, transverse margin unequal, subareuate; antenne of moderate size, fuscous, green at the base; clypeus short, transverse, punctured, convex on the disc, slightly arcuate; emarginate at the centre of the apical margin; mandibles piceous, greenish at the base; thorax thick, subquadrate-cylindrical, quite convex on the dorsum; posterior lateral an- gles of the metanotum robust, triangular; margins of the mesoplure obsoletely erenulated ; abdomen of moderate size, of the length of the head and thorax taken together, obtusely rectangular, quite convex on the dorsum and very densely punc- tured; each lateral intramarginal area of the first dorsal segment cuneiform, sprinkled with thick punctures, arranged almost alternately, margined, slightly coneave; third dorsal segment short, entirely depressed, convex; anteapical series with numerous, rounded, unequal foveole, that is to say, larger, of moderate size and small; apical teeth acutely triangular, unequal in size, the two intermediate ones larger and more robust, the two secondary ones of moderate size, the two ex- ternal ones shorter and a little broader; emarginations also unequal, the central one large, triangular, deep; the secondary ones of medium size, moderately and somewhat obliquely arcuate, the two external ones small, also obliquely arcuate.” Evidently very distinct. Is it not possible that the locality may be erroneous, and that this is not a North American species ? STELBUM Spinola. Ins. Ligur. i, 9, 1806. The genus is sufficiently characterized in the generic key. As far as our present knowledge of the North American species extends Chrysis and Stilbum, while having many characters in common or in close resemblance, have also a correlation of differences that show them to be quite distinct and very strongly marked genera. How they may approach each other by the modifications of exotic species, I have had no means of determining. Stilbum amethystinum. Chrysis amethystina Fabr., Syst. Entom. ii, 359, 1793. Stilbum splendidum Brullé, Hist. Nat. des Ins. Hym. iv, 15; Dahlb., Hym. Eur. ii, 358, pl. xii, fig. 114 (not Fabricius). Stilbum calens Spin., Ins. Ligur. i, 19, 1806; Brullé, loc. cit. 16; Dahlb., loc. cit. 360; Radoskovsky, Horse Soc. Ent. Ross. iii, 308, pl. vi, fig. 35. Stilbum Wesmaeli Dahlb., loc. cit. 359, plate xii, fig. 115, 1854. Stilbum amethystinum Smith, Trans. Ent. Soe. Lond. 470, 1874. A single specimen from Ontario in M. Provancher’s collection. It agrees perfectly with Dahlbom’s figures, etc., and with Brullé’s descrip- tions. For its differing from the true S. splendidum, of Fabricius, I take Smith’s determination. This specimen may be described as follows: 244 S. FRANK AARON. Q .—Deep chalybeous and purple, the third abdominal segment entirely metallic purple; basin of face cross striated, above a large foveole enclosing the anterior ocellus, and caused by the upward continuation of the carina across the front; prothorax with the surface uneven, much wider at the sides than in the middle, with large shallow punctures; mesothorax with the punctures moderately strong directly and on the posterior portion of the median division, but on the dorsum, becoming more shallow separated depressions; tegule small, oval, almost smooth ; metathorax with larger and deeper punctures than the other portions of the in- sect; prolongation of the postseutellum deeply excavated above (the excavation Hesper than in Dahlbom’s figure); abdomen with the second segment three times as long on the dorsum as the first segment, the first sharply angulated at its ante- rior corners, flattened on the sides; second segment with the lateral margins ex- tremely short as compared with the dorsum; third segment with the depression very deep and broad; the pits eighteen or twenty, distinct, rounded, seemingly deep, situated at the bottom of a perpendicular declivity; the apical teeth, four in number, large, pointed, the two median ones projecting beyond the others, but with the central emargination smaller and narrower than those between the me- dian and outer teeth; lateral margins arched outwardly, a little sinuate just before the outer teeth; entire abdomen with small, round, very much separated punc- tures on a smooth surface; those on the last segment very much smaller except at the extreme base, where they are large and close; femora and tibiz entirely blue, the tarsi tinged with green, the basal half of the brown antennal joints tinged with green; 15 mm. long. PARNOPIN &. PARNOPES Fabr. Syst. Piez. 177, 1804. This genus stands by itself and is very widely separated. The char- acters are those of the sub-family. It may be at once distinguished by the lengthened bee-like proboscis. The male has four abdominal seg- ments and the female three, the apical segment being longer in the female. Postscutellum with its posterior margin entire...........----+ seee0- + .. Edwardsii. Postseutellum with its posterior margin deeply notched in the middle (according to Smith’s description ..............csee ceeees cesses ceeseecereee coees CRPYSOPFasina. Parnopes Edwarisii. Euchroeus Edwardsii Cresson, Trans. Am. Ent. Soe. vii, Proc. Ent. Section 1879, p. iv. Parnopes Edwardsii Cresson, loc. cit. page x. The color varies from emerald-green with golden or brassy reflections to deep blue and purple with some green reflections ; two specimens from Vancouver are dull colored, partly fuscous on the thorax, the single male specimen is deep blue. One Californian specimen has strong cupreous 2 NORTH AMERICAN HYMENOPTERA. 245 and golden reflections on the pro- and mesothorax. Projection of the postscutellum quadrate, straight and entire on its posterior margin. The many small apical teeth are fine and sharp. California and Vancouver’s Island; seven specimens including the types. Parnopes chrysoprasina Smith, Trans. Ent. Soc. Lond. 454, 1874. Not known to me. I give Smith’s description in full. The species will probably be found in other localities besides that mentioned. “Male.—Length four and a half lines. Green, with the basal margins of the second, third and fourth segments blue; head, thorax and abdomen closely and strongly punctured, the thorax rather more strongly so than the head or abdomen ; antenne rufo-testaceous, one or two of the basal joints tinged with green; the legs rufo-testaceous, the femora darkest, and, as well as the tibiw, tinged with green; the tegule strongly punctured, tinged with green, and having their outer margin pale testaceous; wings pale fulvo-hyaline; the postscutellum nearly quad- rate, a little longer than broad, deeply notched in the middle of the posterior margin; the apical segment with two large, deep fovez near its apical margin, which is denticulated. “ Hab.—North Carolina.” A partial list of the more important writings on the CHRYSIDIDE. Abeille de Perrin.—Syn. Critique et Synonymique des Chrysides de France. Ann. Soc. L. Lym. xxxvi, 1880, p. 1, pl. 1-2. Brulle.—Hist. Nat. des Ins. Hyménoptéres, vol. iv (Suites 4 Buffon), 1846. Cresson.— Proce. Ent. Soe. Phila. iv, 1865, p. 103, p. 105, p. 303 (new species). « Trans. Am. Ent. Soc. vii, 1879, pp. iv and x of the Monthly Pro- ceedings (new species). Dahlbom.-—Hymenoptera Europza, vol. ii, Chrysis, 1854 (many very fine plates with details). Gribodo.—Ann. Mus. Genoy. vi, 1875, p. 359 (new species). es Ann. Mus. Genoy. xiv, 1879, p. 329 (new species). Norton.—On the Chrysides of North America, Trans. Am. Ent. Soc. vii, 1879, p- 233. Considers only the Genera Elampus (= Omalus Elampus and Notozus in one), Holopyga, Hedychrum and Chrysis (the 4 and 6 dentate species not studied). Patton.—Canadian Entomologist, xi, 1879, p. 66 (four new species described). Provancher.—Petite Faune Entomol. du Canada, Naturaliste Canadien, vol. xii, 1880-81, p. 300 (six new species). Radoskovsky.—Catal. Chrys. Russia, with many fine plates. Hore Ent. Soc. Rossice, ili, p. 225. F. Smith.—Trans. Ent. Soc. London, 1874, p. 451 (revises certain genera and describes new species). Tachenburg.—Hymenoptera Deutschlands, p. 148 (tabulates nine genera). 246 S. FRANK AARON. EXPLANATION, OF PLATES: PLATE VI. 1. Cleptes insperatus. 2. is ae lateral view of abdomen. 3. Omalus iridescens, third abdominal segment. 4. Ke diversus, gs “ 5. yy leeviventris. 6. us ee third abdominal segment. ite 4g a tarsal claw. 8. ‘« sinuosum, third segment. i). “«_ ecoruseans, third segment. 10. . «c pro- and mesothorax and scutellum. An: ee ss tarsal claw. 12. cs semi-cireularis, third abdominal segment. 13. Elampus variatus, pro- and mesothorax and scutellum. 14. oe oc third abdominal segment, as viewed posteriorly, showing the notch of the apical projection. 15. Elampus variatus, third abdominal segment, viewed laterally. 16. 2 Cressoni. ie uy speculum. 18. Diplorrhos plicatus, third abdominal segment, lateral view, showing the two apices and the submarginal fold. 19. Notozus versicolor, third abdominal segment, viewed posteriorly, show- ing the apical notch and its closing membrane. 20. Notozus versicolor, third abdominal segment, viewed laterally. 21. < viridicyaneus, third abdominal segment. PLATE VII. 22. Notozus marginatus, third abdominal segment. 235 « productus. 24. < << third abdominal segment. 25. uz seminudus. 26. Hedychrum obsoletum. 27. + violaceum, posterior view of the postscutellum, showing the median ridge and the foveole. tied matin \ NORTH AMERICAN HYMENOPTERA. 247 Fig. 28. Hedychrum violaceum, tarsal claw. ce “c “ec “é ae “cc Fig. ae ae “ee ““ “ “ee 29. a continuum, posterior view of the postscutellum, showing the following punctured area. 30. Hedychridium dimidiatum, posterior view of the postscutellum. 31. oe < second and third abdominal segments. b2. a sf tarsal claw. 33. < ceruleum, posterior view of the postscutellum. 34. Holopyga ventralis, tarsal claw. 35s we horus. PLATE VIII. 36. Chrysis verticalis, anterior view of head. 37. “¢ “ third abdominal segment. 38. ee inusitata, anterior view of head. 39. “optima, third abdominal segment, showing the prolongation of the fourth segment and the apex of the ovipositor. 40. Chrysis inusitata. 41. . “ hilaris, metathorax. 42. « tota, third abdominal segment. 43. «« perpulchra, third abdominal segment. 44, «¢ densa, es “s 45. « discreta, io ss 46. “ _ parvula, lateral view of mesothorax, showing prolongation of postseutellum. 47. Chrysis parvula, third abdominal segment. 48. ue scitula, a si 49, Parnopes Edwardsii. PLATE IX. ig. 50. Chrysis Meta. Dl. «dorsalis. 52. «montana. 53. “ce oe 54, << Frey-Gessneri. 55. “ce “cc 56. «hirsuta. 57. “ce “ 58. « pelucidula. 59. “ce “ee 60. Be Pattoni. oe ss venusta. “ “ce ee “ce “ee is “ee cas “e “ “ “é “ce “ “ee “c ce 63. 64. 65. 60. 67. 68. 69. mae male 72. 73. 74. 1d. 76. 77. 78. ee 80. 81. 82. 83. 84. 85. 86. 87. 88. 89. “ “ “« eerulans. “ ae - oe ce inflata. ee “ee PLATE X. Chrysis Nortoni. oe ee Ts “ce “ “ce - “ — peracuta. “ce ce «propria. ae oe « Jauta. ce ee « «var. pulcherima. “ee “ee “ oe « smaragdula. Soe (Clara: « _ intricata. “- “oe « pennsylvanica. rc texana. nitidula. Prothorax of Chrysis quadridentate, subgenus first division. — “ “ec es second division. NORTH AMERICAN NEUROPTERA. 249 Monograph of the earlier stages of the ODONATA. Sub-families Gomputna and CoRDULEGASTRINA. BY DE. JH As ELAGEN: Mr. Louis Cabot has published in the “ Memoirs of the Museum of Comparative Zoology” the immature state of the Gomphina 1872 (ready for publication 1871) and of the Aeschnina 1881 (ready for publication 1873). As there is no hope of seeing the four other parts published by him, and as the collection has received additions so numerous as to justify a new publication, the first part containing the two sub-families Gomphina and Cordulegastrina (the latter was considered formerly as belonging to the Gomphina) will commence the series. Of the seventeen species de- scribed by Mr. Louis Cabot, only four were raised. The material is now three times as large; of the forty-eight described species sixteen are raised. ‘The determination of the species is made according to the ‘““ Monographie des Gomphines par Edm. De Selys Longchamps,” and the four additions to the Synopsis des Gomphines by the same author. These works contain the descriptions of 240 species. This paper was ready for publication April, 1884. The help given to my work by other en- tomologists is thankfully acknowledged with each species. SYNORSiS: RAESIewibh! 2-2-3 JOS... ..ccosseccsoeene cee'see Legio GOMPHUS and GOMPHOIDES. PLM SNavyals eA We OMMUSs. . NORTH AMERICAN NEUROPTERA. 215 thin, conical, strongly recurved, about one-fourth the length of the third joint; mask extending to forelegs, narrow, oblong, half as broad, somewhat enlarged at front border, the middle third produced in a semi-circular lobe, with a long comb of flat scales; palpus just reaching, nearly straight, rounded on tip, smooth inside; movable hook short, bent, sharp; prothorax nearly as broad as head, large, trans- verse-oval; wing cases exceeding a little segment 4th; abdomen Aeschna like, three times as long as broad, flattened below, rounded above, tapering from 5th segment; segments of about equal length, the two basal a little shorter, 9th a little longer; dorsal hooks on segments 1 to 9, the three basal very strong, the follow- ing much smaller; lateral spines on 5 to 9; scars as usual, encircled behind by a‘ brown border; base of segments on each side with two triangular brownish spots; longitudinal ventral sutures ending at the apex of 8th segment, the middle space a little longer; segments 2 to 8 on each side with a brown crescent band; appen- dages longer than 10th segment, triangular, very sharp, laterals less than half shorter; legs stout, very strong, hairy, typical burrowing legs; tibias thick after base, bent up at tip, without apical hook; middle legs nearer at base than fore- legs, hind legs nearer at base than forelegs, hind legs widely separated, reaching nearly 8th segment, third joint of tarsi longer than the two basal, claws long, sharp; the claws of four anterior legs blunt. As P. obscurus has now been collected near Boston, by Mr. Morrison, there can be scarcely a doubt, that the nymphz belong to this species. 31. Progomphus spec. Cabot, p. 7 (note at the end). A female nympha from Carundahy, Brazil (Cabot’s type), a nympha from Rio dos Macacos, Brazil, four nymphz from Rio Negro, Amazon, two young, all in alcohol, from Thayer expedition. Length 20 to 25 mm. The later discovery of the “other nymphz from Brazil proves that there has been no mistake in the label, as was supposed, when Mr. Cabot published the monograph of Gomphina. Nevertheless, even to-day with so much more material before me I am at loss to find structural differ- ences. The nymphz from Brazil are indeed less bulky and more slender and the lateral appendages rather shorter, only one-third of the laterals ; until now P. obscurus has not been found in Brazil, and it seems probably that these nymphz belong to a different species. 32. Progomphus spec. Six nymphe in alcohol young and some probably full grown from Santiago, Cala, by Mr. G. R. Crotch, 1872. Length 20 to 27 mm.; breadth 7 mm. These nymphe are so similar to . obscuwrus, that it is difficult to sepa-, rate them ; but all have lateral spines on segments 5 to 9 instead on 5 to 9. The black spots above on abdomen are larger; the ventral segments 6 to 10 have transversal basal black bands, enlarged to the lateral mar- gins; the abdomen a little broader. 276 H. A. HAGEN. Perhaps the nymphz belong to P. zonatus, or to P. meridionalis, n. sp. from Arizona, as a similar nympha 24 mm. long was collected by R. Crotch, San Diego, Cala. Genus GOMPHOIDES (raised). Selys Monogr. Gomphin. p. 206. The principal character of the nymphze of Gomphoides is the unusual ‘length, one-third to nearly one-half of the abdomen, and lankness of the 10th segment. As far as yet known this character is unique among all Odonata. The very slender spindle shaped abdomen, about three-quarters of the whole body has the ventral sutures ending on the apical angles of 9th segment; anal appendages very short, of equal length; the four anterior legs equally distant. There are two different groups represented; one (Cyclophylla?) has the front border of the narrower mask produced in a large rounded lobe with a long dense comb of scales and the palpus as a short, thin, sharp hook ; lateral spines on 7 to 9. The other (Aphylla’) has the front border of the larger mask produced in a very short rounded lobe with a very short and wide comb of bent up pointed scales ; lateral spines rudi- mentary and only on 9th segment. The mask of both reaches half way between fore- and middle legs; prothorax stigma free. Of the thirty-two known species only three nymphze are known; one of them just casting the skin proves fhat the nymphze belong to this genus. 33. Gomphoides spec. (raised). Cabot, Gomph. p. 8, No. 10, pl. i, fig. 5. One male nympha, just beginning fo transform in alcohol, from Santa Cruz, Brazil, Thayer expedition. Length 37 mm.; breadth 6 mm. Body long, slender; little hairy; head large, about as broad as the thorax, cor- date, notched behind; eyes large and prominent; ocelli well developed; antenne short, inserted in a kind of trumpet-like inflation on each side of the inferior ocelius; the two basal joints globular, third twice as long, strong, dilated, bent up a little, with long and dense hairs, fourth very short. linear, recurved; mask reaching half way between fore- and middle legs; breadth half the length, en- larged in front, the middle produced in a large rounded lobe, with a long comb of densé, flat scales; palpus a short, thin, sharp hook; movable hook similar but longer; wing cases reaching middle of 4th segment; abdomen long. spindle shaped, venter less rounded than dorsum, tapering slowly to end of 9th segment; segments of about equal length; 10th very long, nearly one-third of abdomen, very thin, nearly cylindrical; short lateral spines on 7 to 9; dorsal hooks on 2 to 7, strongest on 3d, short but sharp on the following, only indicated on 8 to 9; sears as usual; genitals indicated; ventral sutures ending on the apical angles of seg- NORTH AMERICAN NEUROPTERA. Qt ment 9, middle space a little larger; anal appendages very short, pyramidal, sharp, all of equal length; legs short, very hairy; the four anteriors about equally distant, hind legs more separated; femora arcuated, tibie straight, longer, second joint of tarsi knife shaped, claws very short, blunt; hind legs more slender, lon- ger, reaching 6th segment, third joint of tarsi as long as the two basal. claws longer, pointed. The only specimen is beginning transformation; head and thorax are split as usual, but not yet taken out, only the base of the wings is begin- ning to show outside the wing cases. In lifting a little the skin of the thorax it is to be seen that the thorax of the imago before the wings is blackish, perhaps dark greenish, on each side with a pale divergent band. In fact the parts are similar to those of several Gomphoides. It was stated that perhaps the nympha may belong to Aphylla brevipes, which species has segment 10th as long as segment 9th, but this supposition is rather improbable, since the nympha supposed to belong to A. producta was discovered I think it may belong to Cyclophylla. The abdomen of the imago still in the abdomen of the nympha is pale with two dorsal longitudinal blackish bands. 34. Gomphoides spec. Cabot, Gomph. p. 9, No. 11. Three female nymph in alcohol from Rio dos Macacos, Brazil, Thayer expedition. Length 31 to 55 mm. Not full grown; very similar to the specimen from Santa Cruz; differs by the fourth joint of antenne stronger and longer; by the want of the trumpet-like inflation for the insertion of antennze; by well developed dorsal hooks on 2 to 93 the dorsal hook on segment 2 is a tubercle (just as in the other species), the third strongest, all the other nearly equally developed. In comparing the two species perhaps some allowance is to be made for the fact that the first species is just transforming. Perhaps the shorter fourth joint of antennze and even the trumpet-like inflation may be the consequence of the extraction of the antennze of the imago, for the seta is to be seen in the third joint of the nympha. But as the dorsal hooks are sharp, short, horny spines, they cannot disappear during transformation. Therefore the three younger nymphz seem to belong to a different species. 35. Aphylla producta (supposition). Selys Monogr. Gomphin. p. 230." Two nympha skins, male and female, from Crescent City, Fla. Length 58 mm.; breadth 8 mm. Body slender, very elongate. very little hairy; head large, about as broad as the body, cordate, deeply notched behind, eyes very large, globular behind; a polished elongate spot before each of the posterior ocelli, four polished round spots on occi- put, the two interiors smaller; antenne inserted in a trumpet-shaped inflation, bo 78 H. A. HAGEN. which is nevertheless depressed except on tip; the two basal globular, third joint less than thrice as long, cylindrical, bent up, scarcely thicker on tip, hairy below; fourth very small, short, linear; mask reaching half way between fore- and mid- dle legs, large, one-third longer than broad, narrowed to base, a little more in basal third, channeled below, sides bent up; middle third of front border pro- duced in a small short rounded lobe, with a short comb of bent up, pointed, more distant scales; palpus short, broad, with slender bent down end hook and four teeth before nearly as long and as strong as the end hook; movable hook long, arcuate, sharp; wing cases reaching end of third segment, margins with long hairs; abdomen very long (45 mm.), spindle shaped, tapering slowly to end of 9th segment; venter less rounded, lateral margin thickened; segments of nearly equal length. 9th a little shorter; 10th very long (18 mm.), not full half the length of abdomen, very thin (1.5 mm.), cylindrical; lateral edge of segments 7 to 9 below with a thin fringe of long hair, lateral spines only on segment 9, very short and blunt; sharp dorsal hooks on 2 and 3, on 4 to 9 a broad apical rounded tubercle, sometimes with a very small short spine; sc@rs with several spots and a superior, short, oblique, snow-white band; genitals marked ; ventral sutures end- ing on the apical angles of 9th segment; middle space nearly twice as large as the laterals; anal appendages very short, about as long as segment 10 is broad, of equal length; laterals black, very sharp, apical half narrower, the three other blunt, pale, membranaceous, the basal half of the middle appendage of male above thickened, triangular and horny black as the laterals; legs short, moder- ately strong, hairy, four anteriors equally distant, hind legs more separated ; four anteriors burrowing legs, claws short, sharp, arcuate, hind legs longer, more slen- der, reaching 6th segment, third joint of tarsi as long as the two basal; claws sharp, long, less arcuate. Aphylla producta is not yet recorded from Florida, but as it is very common in Cuba, the supposition is very probable, if the nympha be- longs at all to a known species. Genus Hagenius (raised). Selys Monogr. Gomphines p. 238. The prominent characters of the nymphe are the broad, short, circu- lar, very flat abdomen, the flat, large, circular third joint of antenne, which is cut straight internally and therefore very approximate to the opposite one, the large, flat, running legs, the hind ones much longer than the abdomen, and the middle legs more separated at base than the forelegs; prothorax stigma free. The nymphe of H. brevistylus and japonicus look so different from all nymphz of Odonata, that there is no mistake possible ; to a certain manner they are mimicked by Macromia, The distance of the legs, the ventral sutures of abdomen, and the lateral suture, which is entirely ventral and separated from margin to a con- siderable extent, exclude the nymph of Hagenius from Gomphus. The supposed nymphee of H. ? nanus is apparently related to Hagenius, but differs by the elongate third joint of antennze, mask and palpus, the NORTH AMERICAN NEUROPTERA. 279 more oblong abdomen, the shortness of legs, which are real burrowing legs with a strong apical hook of tibiae, wanting by Hagenius. The nymph from Kentucky have antennz of Hagenius, mask and palpus of H. nanus, legs of the same, but the distance of the two ante- rior pairs equal, abdomen of Gomphus with ventral sutures and last segment of H. nanus. The discovery of the imago is very desirable, to fix the position of the nympha. 36. Hagenius brevistylus (raised). Selys Monogr. Gomphin. p. 241; Cabot p. 9, No. 12, pl. iii, fig. 4. I have seen a large number of nymphe, very young till full grown, dry or in alcohol, and several nymphz skins. A dozen is still before me from Orono, Me., Massachusetts, New York, Kentucky, Kansas, male and female. The species was raised by T. W. Harris; one nympha with the imago half out was presented to the collection by Prof. Fernald; similar ones by other students. Length 12 to 40 mm. Body very flat, about circular, not hairy; head large, flat, cordate, as broad as long; between the antenne a narrow projection, with rectangular notch on tip and sharp angles, inserted in which is a cordate tubercle; eyes a little before the hind part of head, moderately large, rather conical; side part of head below and before the front angle of the eyes protracted near the mouth in a triangular lobe; vertex flat, ocelli visible, small, near each of the hind ones a larger elongate flat spot, and two smaller ones before the anterior ocellus; occiput short, but large, separated from the forehead by a suture uniting the sharp inner angles of the eyes and the well marked posterior margin of eyes; hind border of occiput straight, a little notched in middle, median suture well marked, on each side a small conical tubercle; lateral hind angles pyramidal, strongly elevated; antenne short, the two basal joints cylindrical, first once broader than long, the second merely an- nular; third joint a large flat dise, circular, three times broader than the first, the inner edge cut straight. border somewhat elevated; fourth joint rudimentary, represented by a very small black spine in the swollen anterior border of third not far from the apical angle; the third joint is covered, less below, with short flat scales, longer on the inner border; similar scales cover the basal joints, more or less the head, occiput and prothorax; mask square, sides bent up, base a little narrowed ; front border slightly convex, middle third a little more produced, with pavement teeth; above with a short but thick comb of flat scales; palpus short, a flat broad lobe, rounded on tip, finely serrated within: movable hook longer, ar- cuate, sharp; prothorax narrower than head, excavated, more than twice as broad as long, straight before, a little rounded behind, sides bent up; a transversal suture separates the front part; wing cases reaching 6th segment; abdomen very large, exceedingly flat (4 mm. high by 25 mm. long), more than twice broader than head, nearly cireular on young and half grown specimens, a little longer than broad (23 mm. long: 20 mm. broad) on full grown; the first three segments taper- ing to base, the three last to tip; segments 1 and 2 very short, 3 to 9 nearly equal (2.5 mm. long; 20 mm. broad), 10th very short, inserted entirely in a quadran- gular excision of 9th; the outer edges of segments 2 to 9, which are in fact the lateral spines, form a sharp-edged border, separated from the abdomen by a ven- « tral suture; the posterior border of the edges is oblique, but on segments 6 to 8 with a rounded lobe before tip; on 9th the edges are as long as segment 10 and close to it; the segment 10 on each side with a short, blunt, apical protraction ; dorsal hooks on segments 2 to 10, but varying much in size and elevation; on the last 2 to 4 segments they are often represented by a more or less strong median ridge, though the basal segments have mostly very strong hooks; scars in the middle of segments, the dorsal part between the scars lancet shaped and slowly higher towards the middle (about 4 mm.), the marginal part of the abdomen out- side the scars about 1 mm. thick; venter flat; the two longitudinal sutures par- allel, divergent on segments 2 and 9, ending externally of the apical angles of 9th; middle space about half as broad as the laterals; stigmata near the middle of base of lateral spaces on 2 to 8 are very small, but larger on 8th; ventral bags triangular, on base of segments 4 to 6 somewhat externally of the stigma; genitals marked ; the whole margin around the abdomen edged with a fringe of scales; anal appendages short, stout, pyramidal, blunt, a little longer than 10th segment, superior somewhat shorter, channeled at sides, lateral very small, half as long as the others; legs long, flat, slender, formed for running; legs widely distant, mid- dle ones more separated at base than forelegs; a sharp, elevated, transversal ridge on each side with a strong spine on the prosternum and the mesosternum, and a triangular hook on the under side of the coxa of the four anterior legs; forelegs shortest, edged with flat scales, femora flattened, tibizee angular, longer than femora, tarsi less than half as long as tibiee; middle legs a little longer than forelegs; hind legs very long, much longer than abdomen, femora reaching 7th segment; tibiee a little shorter; tarsi half as long as tibia, third joint as long as the two basal ; claws long sharp, less arcuate than on the other legs. 280 H. A. HAGEN. 37. Hagenius japonicus (supposition). Selys Monogr. Gomphi. p. 244; Cabot p. 10, No. 13, pl. iii, fig. 5. One male nympha not full grown, dry, from Kanagawa, Japan, by Mr. Gulick. Length 28 mm. Very similar to H. brevistylus, differs as follows: part between the antenne less notched, inserted tubercle ovoid, third joint of antenne less rounded, more angu- lar externally ; tubercles on oeciput and hind legs blunt, very much less elevated ; the sides of prothorax more blunt; abdomen straighter at sides and behind, more oblong, 9th ségment shorter, its lateral angles not so sharp; dorsal hooks less de- veloped, after 5th segment forming an elevated ridge; anal appendages shorter, sharper, superior not so deeply channeled at sides, before tip (which is not broken as presumed in Cabot’s description) two very small polished tubercles ; laterals one- third as long as inferiors; ridges on prosternum and mesosternum; its lateral spines and the hooks of coxa nearly wanting. Though this species is very similar to H. brevistylus, the differences quoted seem to justify the separation. The doubt of De Selys (Odonates du Japon, 1883, p. 115) about the existence of H. japonicus in Japan, because he had not seen specimens in the collections from Japan except the type is apparently to be dismissed as the described nympha is surely from Japan. NORTH AMERICAN NEUROPTERA. 281 38. Hagenius ? namus (supposition). Selys Gomphin. Synops ii, Additions p. 37, No. 84, bis. One young nympha in alcohol from Yeddo, Japan, by Prof. E. Morse. Length 15 mm. ; breadth 7 mm. Body flat, elongate, very hairy; head large, flat, broader than long, about ob- long, between the antenne a short, broad projection, nearly straight on tip; eyes small, round in the middle of sides; front angle before eyes conical ; occiput large, straight behind, angles rounded, sides scarcely elevated ; antennze short, the two basal joints small, globular, third a little more than twice as long, flattened, bent up. a little dilated externally in middle, more than twice as long as broad ; fourth short, black, conical; mask large, longer than broad, sides sloping to base, which has half the breadth of the front; middle third a short rounded lobe with a short comb of flat seales and four black short teeth on tip, palpus a flat broad lobe, rounded on tip, inside finely dentate; movable hook long, sharp, arcuate; pro- thorax smaller than head, transverse-oval, side angles rounded ; wing cases reach- ing nearly apex of third segment; abdomen very little elevated above, half as long as broad, oblong, the 9th segment tapering suddenly; segments of equal length, 9th a little shorter in middle; 10th very short, inserted entirely in a broad deep rounded notch of 9th; lateral spines sharp on segments 7 to 9, the last one as long as segment 10; no dorsal hooks; venter flat, the two sutures as in H. brevistylus, the middle space a little smaller than the laterals; anal appendages short, twice as long as 10th segment, pyramidal strongly pointed, the laterals less than half as long as the inferiors; legs short, fit for burrowing; middle legs very little more distant than forelegs; the four anteriors with thick, strong, curvate, femora and tibize, the last ones with a strong external hook on tip; hind legs flat, reaching nearly 8th segment, third joint of tarsi as long as the two basal; legs very hairy, hairs very long. This remarkable nympha is young, and some allowance will have to be made for this fact. Nevertheless [ have compared it with nymphe of H. brevistylus of the same size. The legs of H. brevistylus are running legs, tip of tibiae without hook, middle legs equally more separated as the forelegs, than the hind legs compared with middle legs; the hind legs of the youngest nymph longer than'the body. The abdomen of ZH. nanus ? is more oblong; the third joint of antennze less flat, elongate, the fourth conical ; the mask has four black teeth ; the head is somewhat similar, but the sculptures wanting or less finished; the nympha is very hairy. I do not know H. nanus described after one female ; perhaps the nympha belongs to this species—if it is not a young nympha of Chloro- gomphus. 39. Uvropetala Thoreyi ? (doubtful supposition). Selys Monogr. Gomphin. p. 375. Six nymphe, young, in alcohol from Rocky Creek, near Gregson’s Spring, Kentucky, Oct. 20, 1874, by Mr. F. G. Sanborn and F. W. Putnam. Length 15-20 mm.; breadth 5-6 mm. TRANS. AMER. ENT. SOC. (40) DECEMBER, 1885. Wa . ae b 282 - HH. A. HAGEN. Body elongate, moderately flat, very little hairy, except on legs, this extraor- dinary nympha combines head and antennze of Hagenius with legs and abdomen of Gomphus; head flat, a little broader than long, between antenne an oblong projection with a round notch on tip and sharp angles, inserted in which a cordate tubercle; eyes similar to H. brevistylus, more rounded, side part of head before front angles of eyes straight, not produced ; ocelli visible; occiput similar, no tu- bercles, hind angles conical, not elevated ; antennz similar, but third joint broad- est a little before middle, the apical half of the external margin more straight; mask similar to H. nanus? but the produced lobe less rounded, comb longer; the - four teeth similar; palpus similar to H. nanus?, but instead of finely dentate, with six strong arcuate teeth, the last one on tip; prothorax as by H. nanus?; wing cases reaching 4th segment, with several black dots; abdomen a little ele- vated above, once longer than broad, a little narrower at base, enlarged to 6th segment, the following tapering; segments of equal length, 10th very short, about one-third of 9th, inserted nearly entirely in a deep rounded notch of 9th; lateral spines on 8th and 9th segments sharp, the last one a little shorter than segment 10; no dorsal hooks; lateral margin of last segments bent up a little, finely ser- rated; anal appendages of H. nanus?; venter slightly rounded, the two sutures as by Hagenius, a little less divergent on 9th segment; middle space a little larger than the lateral ones; legs short, fit for burrowing, very hairy; fore- and middle legs equally distant, femurs thick, bent; tibize with a strong external apical hook; hind legs wider separated, short, scarcely reaching 6th segment, flat, tibizee shorter than femur, tarsus as long as tibia, third joint as long as two basal, claws long, sharp, bent at tip; abdomen above with ill defined brown markings; each side of the median line three black basal dots on most segments. This remarkable nympha has the head and antennze of Hagenius, the ventral sutures and mask, except palpus, of the supposed Hagenius nanus, the distance of middle legs, the abdomen, except last segment of Gomphus. The species to which the nymphze, which are collected in winter, and therefore young (perhaps very young), belong is not known. It is, of course, possible that the imago is not yet known, but this is somewhat improbable, as just in this part of Kentucky many excellent collectors have been collecting. Perhaps it may be the nympha of Uropetala Thorey?, which is there by no means rare. At least | know no other species to which it can be supposed to belong. III Lkeio LINDENIA. Genus Icrinus (supposition). Selys Monogr. Gomphin. p. 263. The nymphe of Ictinus though similar to Hagenius by the large rounded abdomen and hind legs longer than the abdomen, differ by im- portant characters from Hagenius and all other groups. The hind legs have only two jointed tarsi, whereas all other Gom- phina have three joints. The longitudinal ventral sutures are straight, but divergent on the 2d and 9th segments as in Hagenius. Besides NORTH AMERICAN NEUROPTERA. 283 these longitudinal sutures there are in all Gomphina transversal ones in- dicating the end of the segments. Now Ictinus has an oblique addi- tional suture on each side of segments 7 and 8 in the lateral space of the venter. ‘This suture begins on the lateral edge on the base of the lateral spine (a little before the end of the segment) and runs to the middle of the lateral space of the foregoing segment, forming a triangular addi- tional part. It would be easy to accept this additional part as the indi- cation of the large lateral leaf on the imago, but this leaf occurs only on the 8th segment, besides that the additional suture is wanting in other Gromphina with lateral leaves. On segments 3 to 6 the additional trian- gular part is inflated with an impressed rim below, ending just where the ventral bags are situated, but here no suture is visible, and the ventral bags are (in one specimen) visible only on 4 to 6; similar impressions are on the sides of abdomen of ApAylla. The head is large, and has between the antennze a flat projection as Hagenius ; the under side of head is projected below the eyes, so as to be seen from above, and simi- larly projected near the mouth parts; the occiput is large and separated from the front by a suture ; antennze with third joint thinner than second, cylindrical, a little flattened above ; mask large, sparse, middle third more or less produced with teeth and comb ; palpus short, broad, hooked, inside with teeth; movable hook not very long; prothorax saddle shaped, stigmata not covered; abdomen strongly roof shaped, with a crest of dorsal hooks and sharp lateral spines; apical margin of segments 7 to 8 notched ; last segment inserted in 9th; hind legs longer than body, front legs fit for burrowing ; base of legs successively wider distant ; prothorax stigma free. After all, Ictinus forms a group well characterized and different from all others. 40. Letinus przecox (supposition). Cabot p. 11, pl. 1, fig. 4. Five nymphee, not entirely full grown and younger ones, all females from the Sutledge River, middle Himalaya, and one from Kast Jumna out of holy tank, near Delhi, in alcohol, by Rev. M. M. Carleton. Length 21 to 16 mm.; breadth 12 to 8 mm. Body short, stout, roof shaped, similar to Hagenius, about circular; head large, cordate, divided by a straight transversal suture behind the eyes, which are mod- erately large, triangular, rather prominent; between the antenne a small square projection, with rectangular notch on tip and sharp angles, inserted in which is a short transversal tubercle; ocelli visible; occiput behind the transversal suture about as long as the front part, hind border nearly straight, angles blunt, well rounded; head beneath at each side with a small prominent tubercle below the 284 H. A. HAGEN. eyes and projecting a little more than the eyes, so that the tip is visible from above; antennz shorter than head, joint one globular, two smaller, annular, three very hairy twice as long as the two basal, cylindrical, straight, not thicker than second, but a little increasing to tip, which is bentup a little and blunt; fourth very short, conical; mask extending between forelegs, large, flat, square, basal fourth a little narrowed, sides bent up; middle third of fore border produced in a rounded short lobe, with a short comb of scales, and on each side with seven short, dark teeth; palpus just meeting, arcuate, moderately sharp pointed, inside with about a dozen dark teeth similar to those of the mask; movable hooks not very long, sharp, arcuated ; prothorax a little narrower than head, transverse oval, half as long as broad, side angles rounded ; wing cases reaching 4th segment; abdomen large. nearly circular, more than twice broader than head, broadest at 7th seg- ment, somewhat rounded below, strongly roof shaped above; segments 1 to 5 short, 6 to 9 longer, 7th and 8th about twice as long as the basal ones, 10th very short, inserted entirely in a large obcordate excision of 9th; the lateral edges of segments 2 to 9 as in Hagenius, separated by the ventral suture, forming lateral spines on segments 4 to 9 successively larger, triangular, sharp, longest on 7th; the lateral edges with long hairs, but on 7 to 9 with a comb of strong, arcuate, sharp spines; lateral border of 9th very oblique, the spines longer than last seg- ment; dorsal hooks on 2 to 9, the basal ones smaller and separated, 6th to Yth on the whole length of segment forming a sharp dorsal crest; anal appendages short, stout, triangular, hairy, a little longer than last segment, laterals one-third shorter than the others, very sharp, more than the others; scars large, four round pol- ished spots on each side of the middle line; dorsum roughly granulated; ventral sutures only a little divergent on 8th, more divergent on 2d segment; middle ~ space about half as broad as the laterals; ventral bags small on 4 to 6?; segments 7 and 8 with a kind of additional ventral suture, beginning short before the lat- eral spine and going oblique to the foregoing segment, not reaching the longitu- dinal ventral sutures; legs long, hairy, not very strong; forelegs less distant than middle legs, hind legs widely separated; the four anterior legs equal, femur stronger, bent; tibia straight, with an apical exterior hook, tarsi short; hind legs longer than abdomen, femur straight, reaching 7th segment, tibia shorter: tarsus one-third shorter, only two jointed (as on the anterior legs), basal joint very short, claws long, bent on tip; the apical margin of the 8th ventral segment be- tween the longitudinal sutures is slightly bisinuated, and just in the middle are two very small but sharply divided tubercles, which represent always the female genitals. I have not seen any male. That the nymphz belong to /cti/nus is sure, as in East India no other genus of the group exists; perhaps it may belong to /. pracox. There is in the collection a dry specimen from the collection of the late Dr. W. Schneider, in Breslau, Prussia, said to be from Brazil. The specimen is 23 mm. long; wing cases reaching half of 7th segment; it is a male, and the only one seen. The specimen is alike to the Himalaya ones, and the figures by Cabot except 4d and 4e are from this specimen. I should believe it to be more prudent to accept the locality Brazil as doubtful, till more specimens arrive. There exists a species of Jctinus (I. latro Er.) in British Guyana, collected by Sir R. Schomburgk, in the Museum of NORTH AMERICAN NEUROPTERA. 285 Berlin. The locality is doubted in the Monogr. Gomphines only for geographical reasons, as the same species is found in Asia and Polynesia, but the specimen in the Berlin Museum is surely from British Guyana. 41. Hetimus spec (supposition). Three younger nymphe, in alcohol, females; two from the Sutledge River, middle Himalaya, and one from East Jumna. out of the holy tank near Delhi, by Rev. M. M. Carleton, all together with the nymphee of the foregoing species. Length 12 to 21 mm.; breadth 8 to 11 mm. Very similar to the foregoing species, differs as follows: front part of head just behind the antenne externally prolongated in a strong conical process; prolonga- - tion of the lateral part of the head just beneath the eyes stronger, visible from above outside of the eyes; occiput shorter, considerably notched behind, angles less rounded; tubercles near the notch stronger; mask produced in middle part of front border in a longer rounded lobe, with a dozen teeth on each side; palpus inside with only seven to eight smaller incisions nearer to tip, basal part smooth ; abdomen more convex beneath, after segment 7 shorter, the margins of 9th seg- ment less oblique; lateral spines on 4th to 6th longer, sharper; on 9th very short, blunt; lateral edges of segments 7 to 9 without a comb of strong, arcuate spines, only hairy; anal appendages shorter, more blunt. There can be no doubt that these nymphz belong to a different species though collected together with the other ones. I have no clue to a sup- position. 42. Tetinus pugnax ? (supposition). Selys Monogr. Gomphin. p. 290. One dry male nympha by Mr. Livingston, collected on his first voyage through S. Africa, locality not given; presented by him to the late Prof. J. Wyman, and by the Professor to the Museum. Leneth 28 mm. ,; breadth 15 mm. Very similar to the nympha of I. precoa, but for some characters more similar to the other species from East India; stout; head large, cordate; tubercle pro- jecting beneath the eye visible from above, connected with the projecting tubercle near the mouth by a concave ridge; antenne short, with an external projection near base, third joint thinner than second, straight, twice the length of the two basal, cylindrical, somewhat flattened above; fourth a very short tubercle; mask square, rather broader than long, middle third of fore border produced in a nearly semi-circular lobe with pavement teeth and a short comb of scales and some lon- ger hairs on each side; palpus very strong, apical half blackish, short, arcuate, hooked at tip, inside with several molar incisions in the middle; movable hook sharp, arcuate, not reaching the base of the opposite one ; occiput shorter than the front part, rough, nearly inserted in the eyes, widely notched behind, hind angles bent up, a smaller tubercle on each side of the middle; prothorax narrower than head, saddle shaped, anterior part an elevated ridge, side angles bent up, in mid- dle of hind border a square tubercle; wing cases reaching half of 7th segment (therefore the nympha may be nearly full grown); abdomen ovoid, broadest at end of 7th segment, flattened below, strongly roof shaped above; segments 1 to 5 286 H. A. HAGEN. short, 6 to 9 longer, 7 and 8 longest, witn the apical dorsal margin widely notched ; 10th short, inserted entirely in a large obcordate excision of 9th ; lateral spines on 4 to 9, longest and sharpest on 7th; short, blunt on 9th; lateral edges of 7th to 9th with a thick comb of very short hairs; 8 to 9 with a basal bunch of longer hairs on the edge; dorsal hooks on 2 to 8, the basal ones small, sharp, 6 to 8 forming a dorsal crest, which is marked very little on base of 9th; anal appendages very stout, short, blunt, the laterals a little shorter, but as blunt as the others; abdomen above rough, covered densely with very short scales; scars without them, four rounded dark spots on each segment; ventral sutures as in other species; legs similar, not very strong; femur of posteriors reaching 7th segment; the male genitals are indicated on segments 2 and 3 and on 9. There is no doubt that the nympha belongs to Jetinus, and as 1. pug- nax is the only species known from 8. Africa, the nympha may belong - to this species. 43. Genus? species. Cabot, Aeschina p. 31, No. 24, pl. iii, fig. 3. Male nympha, dry, from Laguayra, Venezuela and trom Chili, in Prof. Rosenhauer’s collection. Length 37 mm.; breadth 13 mm. I may not repeat here the very detailed description published in 1881. This curious nympha was referred to Gomphina at first, with which it agrees more in general appearance than with Aeschnina. ‘The 3-jointed tarsi and slender antenne are like Cordulegaster, from which, however, it is excluded by the different shape of mask, which again refers it to Aeschnina. ‘The antennee are only 5-jointed. After all I confess that it seems scarcely to belong to Aeschnina. Perhaps it belongs to Petalia or to Phenes. Sub-family CORDULEGASTRINA. Hagen, Synopsis Odonata of America, Proc. Bost. Soc. Nat. Hist. xviii, p. 50. The nymph of the sub-family of Gomphina are quite polymorphous, nevertheless all agree in some important characters. The mask is flat- tened, and its tip never surpassing the margin of the labrum; the palpus is narrow, and when closed lying upon the plate inserted below in the margin of labrum, which forms a kind of cap; the eyes are lateral and distant more or less from the front angle of head; the antennze are 4-jointed, the third very large, fourth rudimentary ; the tarsi of the four anterior legs never 3-jointed ; body and abdomen more flat. The nymphze of the sub-family of Cordulegastrina differ diametrically in all those characters. The mask is large, spoon shaped, covering the anterior part of head, labrum and front, lying, when closed, in the deep groove made by the projecting anterior part of the front with the nasus ; the labrum is similar to that of the imago, its anterior margin hairy NORTH AMERICAN NEUROPTERA. 287 without internal plate; the palpus is very large, triangular, with deep and irregular incisions, forming about a dozen of teeth of very different size and length, the opposite ones closely fitting into one another; there- fore the palpi do not meet in a straight line; the eyes are globular on the anterior angle of head, with an internal triangular projection, more finely facetted ; the antennz are slender, 7-jpinted, the third to seventh forming a thin seta ; all tarsi are 3-jointed ; the abdomen above nearly cylindrical, tapering, like a Sphinx chrysalis ; flat below. There can be scarcely a greater difference of characters between two groups, and the separation of Cordulegastrina as a sub-family of co-ordi- nate value to Gomphina seems to be fully justified. The nymph of Chlorogomphus, Petalia, Petalura, Phenes, are not yet known, and specu- lations upon their affinity would be out of place. Genus CoRDULEGASTER (raised). Selys Monogr. Gomphin. p. 303. The principal characters are given above; the prothorax stigma is large, open and entirely uncovered; the longitudinal ventral sutures of abdomen end on the apex of segment 8th, somewhat distant of the lat- eral angles; there exists on 9th segment a longitudinal groove imitating the sutures, but I have ascertained positively that there is no suture ; small ventral bags seem to be in segments 3 to 6. The nymphe of Cor- dulegaster are so very much alike to some of the Libellulina, that they are only to be separated from them by the palpus not meeting in a straight line. The nymphze of the species of Cordulegaster are very much alike and difficult to be separated; C. bidentatus and C. dorsalis have no lateral spines, the other known species have lateral spies on seements 8 and 9; the relative length of third joint of antennz seems to be a specific character. The split of the skin of the head by the change into the imago goes through the eyes just as in the Gomphina. 44. Cordulegaster bidentatus (raised). Selys Monogr. Gomphin. p. 339; Cabot p. 14, No. 17, pl. iii, fig. 1. Hagen Stettin. Entom. Zeit. xiv, p. 265; Brauer Neur. Austriaca p. 15, Nympha. Two females raised Vienna, Austria, by Dr. Brauer, and Graubuend- ten, Switzerland, by Prof. Zeller. Male and female in alcohol from Kooloo, Himalaya, by Rev. M. M. Carleton. Length 43 to 35 mm.; young male 27 mm. Large, stout, with long hairs, but not densely; head large, breadth twice its length, sides rounded, running semi-cireularly to occiput, so that the hind border of head is half the width of the fore border; eyes with a small, orbicular, promi- nent globe on the front angles of head, triangularly prolongated inside to the ver- 288 H. A. HAGEN. tex; this part is connected insensibly by a furrow with the prominent globe and also facetted, therefore the eyes are in fact very large, though probably only the small globe serves for vision in the nympha stage, as its facets are very much lar- ger; the part behind the eyes is separated by a sharp, defined, curvate line, rough by fine tubercles; on each side a rounded flat spot. a smaller one in the middle, and a large ill defined one each side on the hind angle; all those spots are entered from behind by some irregular lines formed by fine tubercles; vertex round, small, convex, with ocelli, the lateral ones more defined; front border of head between antenne forming a semi-circular plate, strongly prominent, when seen from below, with a comb of long, flat spines; antennee as long as head, 7-jointed, tapering, slender; the two basal joints short, thicker, second a little longer; the other joints form a tapering, slender seta; third joint as long as fourth to sixth; the last four joints of equal length, seventh pointed; nasus transversal, strongly surpassed above by the front lobe, forming with it a deep groove, to which the palpus of the mask reaches; labrum short, very broad, deeply notched on front margin, sides rounded; mask longer, extending a little beyond middle legs, triangular, very little longer than broad; sides bent up, sloping to base, which is about one-fourth as broad as the front part; the middle third produced in a large triangular lobe, hollowed beneath at base, with two strong teeth on tip and a comb of short scales on each side; palpus large, triangular, very much enlarged at inner border, deeply denticulate, the denticulations of the opposite palpi closely fitting into one another; movable hook short, sharp, slender; prothorax less than half the length of head, and two-thirds of its breadth with a small lobe in middle; front part a trans- versal lobe; hind part raised, bisinuated; stigmata large, narrowed; wing cases reaching 5th segment; abdomen as broad as head, long, three-fifths of body, cy- lindrical above, flattened beneath, broad one-third of its length; segments of nearly equal length, 8th to 10th shorter, tapering to tip; apical margin of seg- ments with long hairs; lateral spines on 9th very short, but every where among the long hairs are intermixed heavy spines; inferior anal appendages twice as long as 10th segment, pyramidal, very sharp; the middle one a little shorter; all with apical half bent down a little; lateral ones very short, half the length of segment 10, very sharp; abdomen below covered with fine, short, hairs; longi- tudinal sutures straight, ending on 8th segment, space between them four times broader than lateral space: female genitals representing two approximated conical lobes reaching 10th segment; legs very hairy, flattened, strong, formed for run- ning; at base widely and equally separated; tibiz about as long as femora; tarsj 3-jointed; hind legs reaching 8th segment; claws sharp; numerous spines on the under side of legs. A younger male from Kooloo 27 mm. long is similar; on each seg- ment near the middle of dorsum a black eye-spot on each side, repre- sented by darker spots on the female; male genitals indicated by the usual impressions on segments 2, 5 and 9. The nympha raised by Dr. Brauer has the superior middle appendage one-half the length of the inferiors (laterals by Cabot p. 14, is an error for inferiors)'and blunt. The second female raised by Prof. Zeller has the superior middle ap- pendage similar to the other specimens, so that Dr. Brauer’s specimen NORTH AMERICAN NEUROPTERA. 289 represents a deformity. I received from Kooloo two female imago of C. brevistigma Monogr. Gomphin, p. 329, considered by me years ago to be only C. bidentatus, which seems to be corroborated by the nymphze from Kooloo. At least [ am unable to find any differences. A detailed description of the nympha raised by Dr. Brauer is given by me in Stettin. Entom. Zeit. 1853, xiv, p. 265, by Dr. Brauer Neur. Austr. p. xv, and by Cabot p. 14. Comparing these descriptions with the new one given above no difference will be found. Prof. Zeller’s specimen arrived only in 1876. 45. Cordulegaster dorsalis (supposition). Selys Monogr. Gomphin. p. 347. Two full grown female skins by Mr. J. Behrens, and one half grown male, dry, by Mr. H. Edwards all from California. Length 43 to 27 mm. The full grown skin is very similar to C. bidentatus, but the body less bulky, the head narrower, its sides more rounded to occiput ; third joint of antennz shorter ; abdomen narrower ; no lateral spines. As there is only one species known from California and the North- western States, the nympha may belong to C. dorsalis. 46. Cordulegaster annulatus (raised). Selys Monogr. Gomphin. p. 333; Cabot p. 14, pl. iii, fig. 3. Hagen Stettin. Ent. Zeit. xiv, p. 265. A female nympha skin, raised by Mr. McLachlan, England; a dry nympha, half grown ; from Luenburg, Hanover, by Mr. Heyer. Length 40 mm. and 30 mm. Dark brown, hairy; large, stout; head large, breadth twice the length; sides straight; the posterior half rounded, running semi-cireularly to occiput, which is half as broad as the fore border; eyes forming a small, orbicular, prominent globe on the front angles, inside prolongated to the vertex; the prolongation is trian- gular, separated by a slight furrow from the globe and has finer facets; the part behind the eyes is separated by a sharply defined curvate line, and rough by small flat tubercles, which are more numerous along the sides and crowded behind the eye-globe, having there the appearance of flat scales; on each side near the me- dian suture a rounded spot and a larger ill defined one near the lateral margin: the latter one with some irregular lines; vertex small, rounded, the lateral ocelli more defined; front border between the antenne semi-circular, flat. prominent, with a comb of long flattened spines; antenne as long as head, 7-jointed, slender, tapering, inserted in a cylindrical socket as large as first joint; the two basal joints short, thicker, second a little longer; third joint longer than fourth and fifth together; the last four joints short, of equal length ; seventh sharply pointed; the point of it imitating an additional joint; mask like C. bidentatus ; the margin of palpus forming three large teeth, lacerated by indentures forming a number of smaller teeth; prothorax like C. bidentatus, but a little less broad; wing cases reaching 4th segment; abdomen as broad as head, long about three-eighths of TRANS. AMER. ENT. SOC. (41) DECEMBER, 1885. 290 H. A. HAGEN. body, rounded above, but not cylindrical as C. bidentatus, more flattened beneath: four apical segments tapering and shorter ; apical margin of 6 to 9 concave; short, strong, lateral spines bent down on tip on 8 and 9; all apical margins with a dense fringe of long hairs, also the sides very hairy; anal appendages not full twice as long as 10th; tip sharp, bent down; the middle one nearly as long as inferiors ; lateral ones not full as long as 10th, conical, tip sharp, bent down; ab- domen below covered with fine, short hairs; longitudinal sutures straight, space between them four times as broad as the lateral space; female ovipositor conical, bifid nearly to base, a little flattened below, reaching 10th segment; legs very hairy, the inferior margin with numerous spines; tibiz about as long as femora; tarsi a little shorter; claws sharp. The nympha from Luenburg, Hanover, described and figured by Mr. Cabot, is only 30 mm. long, about half grown ; the supposition that this nympha belongs to C. annulatus, is now corroborated by the raised nym- pha. The statement by Mr. Cabot p. 14, “ not to be distinguished from C. Sayi,”’ was the result of insufficient material. C. annulatus differs from all N. American species by the sides of head straight behind the eyes, the third joint of antennze longer than fourth and fifth together, the lateral spines on Sth and 9th segments and the lateral appendages strong, sharp, bent down or better incurvate on tip. 47. Cordulegaster diastatops (supposition). Selys Monogr. Gomphines p. 320. Cordulegaster Sayi Cabot p. 13, No. 15, pl. iii, fig. 2. Two young nymphe, dry, from Cambridge, Mass. ; six in alcohol from Bethel, Me., male, female, very young, 10 mm. long to half grown (?) 25 mm. long; one female in alcohol from Maryland by Osten Sacken ; one from Pennington Gap, Cumberland Co., Va., by H. G. Hubbard, August, 1879; two about full grown females from Chicopee, Mass., R. H. Wheatland, July 1, 1860, long 40 mm. Length 10 to 40 mm. Body more slender, very hairy; head half as long as broad; sides running semi- circularly to occiput, differing from ©. bidentatus by a little notch just behind the eye, after which the very strong and somewhat projecting curve begins, ending nearly angular at the narrow occiput; the internal angle of eyes reaches nearly the vertex; antenne with third joint very little longer than second, fourth to seventh shorter, nearly equal; joint three shorter than four and 5 together ; abdo- men more slender, segments 8 and 9 with strong lateral spines; feminal genitals appearing first in nymphe 23 mm. long; tip of appendages bent down very little ; wing cases of very young ones not exceeding the segments of thorax, otherwise similar to C. bidentatus. I am not sure if large specimens from Chicopee belong here, except the somewhat broader head no differences are found. When Mr. Cabot described this species I did not know that C. Sayi was a different species from C. diastatops ( C. lateralis). I confess that some nymphze could as well belong to C. maculutus, at least those from Chicopee ; all others look entirely alike. iat NORTH AMERICAN NEUROPTERA. 291 48. Cordulegaster obliquus (supposition). Selys Monogr. Gomphin. p. 349. One male nymphe skin by Boll from Dallas, Texas, in MoLachlan’s collection. Length 44 mm. The only nympha is not in very good condition ; similar to C. annu- latus, but the head partly broken; the mask narrower; the abdomen broadest in the middle, longer; segments 8 and 9 with a short, straight lateral spine ; appendages not full twice as long as 10, tip sharp, very little incurved ; the middle one shorter than the inferiors; lateral ones as in C. annulatus. As Mr. McLachlan has received from Boll the imago of C. obliquus from Dallas, and as this species is at present the only one known from Texas, the supposition seems very probable. The description will be more detailed when complete specimens are at hand. A Bibliographical and Synonymical Catalogue of the North American CYNIPID®., with description of new species. BY WILLIAM H. ASHMEAD. Jacksonville, Florida. (Paper No. 6.) My aim in presenting this Catalogue of the North American Cynipide, is to show our present knowledge of the forms of this interesting hymen- opterous family; to bring together all the described North American species, and to place them as far as possible in their proper genera, so that they may the more readily be identified. The arrangement of the genera of the phytophagous Cynipide, is that proposed by Dr. Gustav Mayr, in his ‘‘ Die Genera der gallenbe- wohnenden Cynipiden,’ with the exception that I have thought it advi- sable to still continue to separate the Psenidzx from the Inquiline. The classification of the parasitic Cynipidee is still very imperfect and will require a thorough revision. It is hoped, however, that the list of the described North American forms here given for the first time, will induce students to pay more at_ tention to their collection, so that larger and better series may be col- lected and thus enable a more satisfactory classification to be made in the near future. In an appendix the new species will be found described. 292 W. H. ASHMEAD. AUTHORS AND WORKS CITED. Adl.—Adler in Zeitschrift fiir vessens Zool. vol. xxxv, 1881. Adl. et Licht.—Adler and Lichtenstein. Les Cynips I, Introd. Generat. alternante, suive de classification des Cynipides. Montpellier, 1881. Ashm.—Ashmead, Wm. H. On the Cynipidous Galls of Florida with descriptions of new species. Papers Nos. 1, 2 and 3 in Proceedings Entomological Sec- tion Acad. Nat. Sci. Phila. 1881. ; On the Cynipidous Galls of Florida with descriptions of new species No. 4, in ditto 1885. Bass.—Bassett, Homer F. Descriptions of several supposed new species of Cy- nips, in Proceedings Entomological Society Phila. vol. iii, 1863. Descriptions of several new species of Cynips and a new species of Diastrophus in ditto vol. iv, 1864. Galls found on Plants of the genus Rubus in “ Canadian Entomologist,” vol. ii, 1870. New Species of Cynips in ditto vol. xiii, 1881. Description of a new species of Cynips in “‘ American Naturalist,” vol. xv, 1881. List of the North American Cynipide in ditto vol. xvi, 1882. Arrangement of Cynipide by Dr. Mayr in ditto vol. xvi, 1882. Dahib.-—Dahlbom, A. G. Monog. Onychia och Collaspidia. Tvenne nya Inseckt Slagter, 1842. Skandinavisk Hymenopter Fauna l. Galliple Flugor, 1846. Daim.—Dalman, J. W. Analecta Entomologica, 4to, Holmiz, 1823. Fitch.—Fitch, Dr. Asa. Second Report on the Noxious and other Insects of New York in Transactions of New York State Agricultural Society vol. xv, 1855. Fifth Report, ete., in ditto vol. xviii, 1851. Sixth Report, ete., in ditto vol. xix, 1859. Forst.—Forster, A. Verh. des Naturwissenschaftlichen Vereins Preuss. Rheinland vol. xvii, 1860. Zoolog.-botanischen Gesellschaft. Wien. 1869. Giraud.—Giraud, Dr. J., in Zeitschrift fur die Entomologie ii, 1840; in ditto vol. ili, 1841. Enumeration des Figitides de l’Autriche, Vienne, 1860. Hartig.—Hartig, T. Zeitschrift fur die Entomologie ii, 1840; in ditto iv, 1843. Zoolog.-botanischen Gesellschaft. Wien. 1859. Harris.—Harris, Dr. Wm. Insects Injurious to Vegetation, third edition, 1862. Hald.—Ualdeman, Prof. 8.8. Proceedings Academy Natural Sciences Phila., vol. iii, 1850. Hal.—Haliday; A. H., “ Entomological Magazine” vol. iii. Latr.—Uatreille, Prof. Pierre Andre. Histoire naturelle générale et particuliére des Crustaces et des Insectes in vol. xiii, 1802-5. Genera Crustaceorum et Insectorum, ete., vol. iv, 1806-9. Licht. - Lichtenstein, Jules vide Adler. Linn. Uinnaeus, Charlesde. System Nature 1789, ed. 1748. Mayr.—Mayr, Dr. Gustav. Die Einmiethler der mitteleuropaischen Eichengallen, Wien, 1872. : Die genera der gallenbewohnenden Cynipiden, 1881. Die Europaischen Artea der gallenbewohnenden Cynipiden, 1882. Nort.—Norton, E. in Proceedings Entomological Society Phila., vol. i, 1861. NORTH AMERICAN HYMENOPTERA. 293 O. S.—Osten Sacken, Baron. On the Cynipidee of the North American oaks and their galls in Proceedings Entomological Society Phila., vol. i, 1861, Additions and corrections to a paper entitled ‘On the Cynipidz of the North American Oaks and their Galls,” in ditto vol. ii, 1862. Contributions to the Natural History of the Cynipide of the United States and their Galls (Article 3d) in ditto vol. ili, 1863. Contributions to the Natural History of the Cynipide of the United States and their Galls (Article 4th) in Transactions American Entomological Society Phila., 1865. Contribution to the Natural History of the Cynipide of the United States and their Galls in ditto vol. ili, 1870. Prov.—Provancher, Mon. L’Abbe. Faune Canadienne Hymenopteres, Fam. vi, Cynipides in Le Naturaliste Canadien vol. xii, Quebec, 1881. Reinh.—Reinhard in Entomologisch Zeitung, 1865. Say.—Say, Thomas. Say’s “ American Entomology,” edited by John L. LeConte, M.D. vol. ii. Walsh.—Walsh, Benj. D. On Dimorphism in the Hymenopterous genus Cynips with an appendix containing hints for a new classification of the Cynipide, including descriptions of several new species, etc., in Proceedings Entomo- logical Society Phila. vol. iv, 1864. Galls and their Architects in American Entomologist vol. i, St. Louis, 1868. Galls and their Architects (second article) in ditto vol. ii, 1869. Westw.—Westwood, Prof. J. O. “Magazine of Natural History,” vol. vi, 1833; in ditto vol. vill, 1835. Guérin’s ‘‘ Magazine of Zoology,” 1837. “Introduction to Modern Classification of Insects,’”’ vol. 11, 1840. CATALOGU E. CYNIPIDE. Division I.—PSENIDZ,, or True Gall-makers. DRYORHIZOXENUS, Ashmead. Belonocnema, Mayr. floridanus, Ashm. Proc. Ent. See. 1881, p. xxv. Belonocnema Theatew, Mayr. Die Gen. d. Gallenbw. Cynip. p. 16. RHODITES, Hartig. dichlocerus, Harris (Cynips) Ins. Mass. 3d Ed. p. 549; (Rhodites) Osten Sacken Proce. Ent. Soc. Phil. vii, p. 42. bicolor, Harris (Cynzps) 1. c. p. 548; (Rhodites) Osten Sacken 1. c. p. 49. ignota, O.S. l.c. p. 49. rose, Linn. (Cynips) Sys. Nat. ii, 917; (Rhodites) Hartig Zeitschr. f. d. Ent. ii, 1840 p. 194. radicum, O.S. 1. c. (ante) p. 46. verna, 0.58. 1. c. p. 49. 294. W. H. ASHMEAD, DIASTROPHUS, Hartig. nebulosus, O.S. l. c. p. 36. cuscutaeformis, O.S. 1]. c. p. 39. radicum, Bass. Can. Ent. vol. ii, p. 98. turdigus, Bass. l.c. p. 99. potentille, Bass. Proc. Ent. Soc. Phil. ili, p. 689. similis, Bass. Can. Ent. vol. xiii, p. 19. ANTISTROPHUS, Walsh. pisum, Walsh, Am. Ent. vol. ii, p. 74. TRIBALIA, Walsh. batatorum, Walsh, Proc. Ent. Soc. Phil. iii, p. 470. AMPHIBOLIPS, Reinhard. spongifica, 0. S. (Cynips) Proc. Ent. Soc. Phil. ii p. 244. coccinia, O.S. 1. ¢. p. 242. nubilipennis, Harris (Cynips) Ins. Inj. Veg. p. 434; Fitch Rep. 2nd, No. 318. inanis, O. S. (Cynips) 1. c. ante i, p. 61. coelebs, 0. S. (Cynips) 1. c. p. 61. ilicifoliz, Bass. (Cynips) 1. ¢. iii, p. 682. formosa, Bass. (Cynips) l. c. p. 679. sculpta, Bass. (Cynips) 1. ¢. li, p. 324. phellos, O. 8. ( Cynips) 1. ¢. i, p. 70. cinerea, Ashm. (Cynips) Proc. Ent. Sec. 1881, p. xix. racemaria, Ashm. ( Cynips) |. c. p. xxvi. citriformis, Ashm. (Cynips) 1. c. p. xxviii. fuliginosa, Ashm. (Cynips) 1. c. 1885, p. vii. melanocera, n. sp. ANDRICUS, Hartig. 8. G. CALLIRHY TIS, Forster. agrifoliz, Bass. (Cynips) Can. Ent. vol. xiii, p. 53. Suttoni, Bass. (Cynips) 1. c. p. 54. californicus, Bass. (Cynips) 1. c. p. 51. capsula, Bass. ( Cynips) 1. ec. p. 101. conigerus, 0. S. (Cynips) Proc. Ent. Soc. Phila. ii, p. 251, vol. v, p. 358. seminator, Harris (Cynips) Ins. Inj. Veg. p. 548; Fitch, Rep. 2d N. Y. State Agr. Soe. p. 315. similis, Bass. (Cynips) Proc. Ent. Soc. Phila. iii, p. 685. futilis, O. S. (Cynips) 1. c. pp. 63-64. tumifica, O. 8. ( Cynips) 1. ¢. v, p. 683. scitula, Bass. , Cynips) 1. ¢. iii, p. 683. clavula, Bass. (Cynips) 1. c. p. 685. operator, O. 8. (Cynzps) 1. c. ii, pp. 256-57. palustris, O. S. ( Cynips) 1. ¢. 1, p. 63. nigre, O. 8. ( Cynips) 1. ¢e. i, p. 66. tuber, Fitch (Cynips) Rep. 2d N. Y. State Agr. Soc. p. 309; Bassett, Proc. Ent. Soe. Phila. ili, p. 685. NORTH AMERICAN HYMENOPTERA. 295 modesta, O. 8. (Cynips) 1. ¢. i, p. 66. notha, O. S. (Cynips) 1. ¢. p. 58. podagre, Walsh (Cynips) Proc. Ent. Soe. iii, p. 492. futilis, O.S. ( Cynips) 1. c. i, pp. 63-64. papillatus, O. 8. (Cynips) 1. ec. p. 64. quercifoliz, n. sp. 8. G. ANDRICUS, Hartig. tubicola, O. S. (Cynips) Proe. Ent. Soe. i, p. 60. singularis, Bass. (Cynips) 1. ¢. ii, p. 8326; Walsh, vol. ii, p. 485. Osten Sackenii Bass. (Cynips) 1. c. p. 327. ventricosus, Bass. (Cynips) |. c. iii, p. 681. lana, Fitch (Cynips) Fifth Report, No. 316. confluens, Harris (Cynips) Ins. Inj. Veg. p. 433; O. 8. Proc. Ent. Soe. i, p. 57. petiolicola, Bass. (Cynips) Proe. ii, p. 325. fusiformis, 0. S. (Cynips) 1. c. i, p. 61. flocci, Walsh ( Cynips) 1. ce. vol. iv, p. 482. ignotus, Bass. (Cynips) Can. Ent. vol. xiii, p. 106. cinerosus, Bass. (Cynips) 1. c. p. 110. * utriculus, Bass. (Cynips) 1. ¢. p. 78. californicus, Bass. (Cynips) 1. c. p. 51. pomiformis, Bass. (Cynips) 1. ¢. p. 74. Pattoni, Bass. (Cynips) 1. c. p. 98. Coxii, Bass. (Cynips) l.c. p. 112. papula, Bass. ( Cynips) 1. ¢. p. 107. batatoides, Ashm. (Cynips) Proc. Ent. Sec. 1881, p. xi. foliatus, Ashm. (Cynips) 1. ¢. p. xiii. lanigera, Ashm. (Cynips) 1. ¢. p. xiii. Catesbei, Ashm. (Cynips) |. ¢. p. xv. Turnerii, Ashm. (Cynips) 1c. p. xvi. rugosus, Ashm. (Cynips) 1. c. p. xviil. medullez, Ashm. (Cynips) 1. ce. 1885, p. vill. gemmarius, Ashm. (Cynips) 1. c. 1885, p. ix. capsualus, Ashm. (Cynips) 1. c. 1885, p. ix. virens, Ashm. (Cynips) 1. c. 1881, p. x. succinipes, Ashm. (Cynips) 1. ¢. p. xi. clavigerus, Ashm. (Cynips) 1. c. p. xxvii. omnivorus, Ashm. (Cynips) 1. c. 1885, p. vi. gibbosus, Prov. Le Nat. Can. vol. xii, p. 282. quinqueseptum, n. sp. CYNIPS, Linn. strobilana, O. S. Proc. Ent. Soc. Phila. ii, p. 254; Bassett, 1. c. vi, p. 690. echinus, O. 8. Trans. Am. Ent. Soe. 1870, p. 56: ACRASPIS, Mayr. pezomachoides, O. 8. ( Zeras) 1. c. ii, p. 250. erinacei, Walsh (Teras) 1. ¢. ii, p. 483. 296 W. H. ASHMEAD., BIORHIZA, Westw. forticornis, Walsh (CQynips) 1. c. iii, p. 490; (eras) O. S. 1. ¢. iv, p. 379. hirta, Bass. (Cynips) |. c. iii, p. 688; (Teras) O.S. 1. ¢. iv, p. 379. fulvicollis, Fitch (Philonix) Rep. No. 291; (Zeras) 0. S. 1. ¢. p. 379. nigricollis, Fitch (Philonix) 1. c. No. 292: (Teras) O. 8.1. ¢. iv, p. 379. nigra, Fitch, Fifth Rep. No. 290. LOXAULIS, Mayr. globulus, Fitch (Callaspidia) Fifth Rep. No. 313; (Cynzps) O. S. 1. ce. ante vol. i p- 67; Bassett, 1. ec. vol. ii, p. 328. centricola, 0. 8. ( Cynips) 1. ec. vol. i, p. 58. tenuicornis, Bass. (Cynips) Can. Ent. vol. xiii, p. 92. ficula, Bass. (Cynips) 1. c. xii, p. 75. ficigera, Ashm. (Cynips) Proc. Ent. See. 1885, p. vi. DRYOPHANTA, Forster. gemmula, Bass. (Cynips) Can. Ent. vol. xiii, p. 104. nubila, Bass. (Cynips) 1. e. p. 56. bella, Bass. (Cynips), 1. c. p. 56. polita, Bass. (Cynips) 1. c. p. 56. aquatice, Ashm. (Cynips) Proc. Ent. Sec. 1881, p. xvi. laurifoliz, Ashm. (Cynips) 1. c. p. xvii. NEUROTERUS, Hartig. batata, Bass. (Cynips) Proc. Ent. Soe. Phila. iii, p. 684; Fiteh Fifth Rep. No. 311. noxiosus, Bass. ( Cynips) Can. Ent. xiii, p. 108. vesiculus, Bass. (Cynips) Proc. Ent. Soe. Phila. iii, p. 683. irregularis, 0. S. (Cynips) 1. ¢. i, p. 65. verrucarum, 0. 8. (Cynips) 1. ec. p. 62. minutus, Bass. (Cynips) Can. Ent. vol. xiii, p. 96. floccosus, Bass. ( Cynips) l. c. p. 111. affinis, Bass. (Cynips) 1. c. p. 103. piger, Buss. (Cynips) 1. c. p. 105. corrugis, Bass. (Cynips) 1. c. p. 109. majalis, Bass. (Cynips) Proc. Ent. Soe. Phila. ili, p. 683. Rileyi, Bass. (Cynips) Am. Nat. 1881, p. 149; Am. Ent. vol. iii, p. 153 (figure of gall). crassitelus, Prov. Le Nat. Can. vol. xii, p. 232. minutissimus, Ashm. (Cynips) Proc. Ent. See. 1885, p. vii. confusus, Ashm. (Cynips) 1. c. 1881, p. xviii. coniferus, Ashm. (Cynips) |. c. p. xxvii. The following species were characterized from the galls alone and their generic position is uncertain : Cynips pilule, Walsh Proc. Ent. Soc. Phila. vol. iii, p. 481. Cynips juglans, Osten Sacken 1. ec. vol. ii, p. 256. Cynips cicatricula, Bassett Can. Ent. vol. xii, p. 105. NORTH AMERICAN HYMENOPTERA. 297 Division II.—INQUILIN A, or Guest gall-flies. PERICLISTIS, Forster. sylvestris, 0. S. (Auvlax) Proc. Ent. Soc. Phila. vol. iii, p. 37. pirata, O. S. (Awlaz) 1. e. vol. i, p. 64. futilis, O. S. (Aulaz) 1. ec. vol. i, p. 64. semipiceus, Harris (Cynips) Ins. Inj. Veg. p. 549. CEROPTRES, Hartig. ficus, Fitch (Cynips) Fifth Rep. No. 314. petiolicola, 0. 8. (Amblynotus) 1. c. vol. i, p. 67; vol. v, p. 380. Amblynotus ensiger Walsh, 1. c. vol. ii, p. 496. inermis, Walsh (Amblynotus) 1. c. vol. ii, p. 598; (Ceroptres) 1. c. vol. v, p. 380. arbos, Fitch (Cynips) Fifth Rep. No. 310. tuber, Fitch (Cynips) 1. c. No. 309. obtusilobe, n. sp. citriformis, n. sp. pomiformis, n. sp. virentis, n. sp. succinipedis, n. sp. lanigere, n. sp. minutissimi, n. sp. Catesbei, n. sp. SYNERGUS, Hartig. lignicola, 0. S. Proc. Ent. Soc. vol. ii, p. 252; rhodtiformis Walsh 1. c. p. 499. oneratus, Harris (Cynips) Ins. Inj. Veg. 3d ed. p. 548; Fitch Second Rep. No. 313; (Synergus) Osten Sacken |. ¢. ante vol. v, p. 380. leviventris, 0.S. (Synophrus) |. c. vol.i, p. 54; Walsh vol. ii, p. 494; (Synergus) 0.8. 1. ¢. vol. v, p. 380. campanula, 0. 5S. 1. c. vol. v, p. 376. dimorphus, 0.8. l. ce. vol. v, p. 376. albipes, Walsh (Synophrus) 1. e. vol. ii, p. 496. medax, Walsh l. ec. vol. iv, p. 498. ficigere, n. sp. conifere, n. sp. batatoides, n. sp. bicolor, n. sp. medulle, n. sp. sapholitus, Forster. gemmariz, n. sp. Division III.—FIGITINZA,, or the Parasites. ALLOTRIA, Westwood. avene, Fitch Sixth Rep.-etc. p. 841, N. Y. State Agr. Soc. tritici, Fitch 1. ec. p. 841. lachni, Ashm. n. sp. (Appendix) F t polita, Prov. Le Nat. Can. vol. xii, p. 239.* J * This is an Inquiline ; my specimen is too poor for identification. TRANS. AMER. ENT. SOC. (42) DECEMBER, 1885. 298 W. H. ASHMEAD. ANACHARIS, Dalman. subcompressa, Prov. (Hucoila) 1. c. (ante) vol. xii, p. 237. ONYCHIA, Dalman. quinquelineata, Say (Dzplolepis) LeConte’s Ed, Say’s Works vol. ii, p. 716; (Figites) Prov. Le Nat. Can. xii, p. 237. armata, Say (Dzplolepis) |. c. ii, p. 716; (Pigites) Prov. 1. c. xii, 238. EUCOILA, Westwood. stigmata, Say (figites) 1. ¢. ii, p. 718. Kleidotoma maculipennis. Prov. 1. e. xii, 237. impatiens, Say (Diplolepis) |. ¢. ii, p. 716. Kleidotoma cupulifera Prov. |. c. xii, 238. pedata, Say (Diplolepis) 1. ¢. ii, p. 717. mellipes, Say (/%gites) 1. c. ii, p. 718. Kleidotoma minima Prov. 1. ¢. xii, p. 238. KLEIDOTOMA, Westwood. vagabunda, n. sp. FIGITES, Latreille. impatiens, Say I. ¢. ii, p. 718. t chinquapin, Fitch Fifth Rep. No. 320. FEGILIPS, Halliday. 2 aciculatus, Prov. 1. c. (ante) vol. xii, p. 239. t obtusilobe, O. S. Proc. Ent. Soc. Phila. vol. i, p. 68. IBALIA, Latreille. ensiger, Norton 1. c. vol. i, p. 200. anceps, Say LeConte’s Ed. Say’s Works vol. i, p. 218. maculipennis, Hald. Proc. Acad. Nat. Sci. vol. iii, p. 127. rufipes, Cress. Proc. Ent. Sec. A. N.S. 1879, p. xvii. montana, Cress. I. c. 1879, p. xvii. The following species, recorded by Dr. Harris in his ‘‘ Catalogue of Insects of Massachusetts,” Ambherst, 1835, are unknown to me and should probably be dropped; as I am informed, through the courtesy of Mr. Samuel Henshaw, Curator of Boston Society of Natural History, that they are but MS. names of Dr. Harris: DIPLOLEPES. FIGITEs. flagellatus. pini. impolita. melisoma. devius. potentille. Summary. ERG INC G3 esoneeentscessesaa ct sceeneecreaeseir essen seeetcst 121 species. ivr qiullin a3 eeeceseectereeesceieesecian sen fete Mie oesce seer ou, eS IRM EIN SD aeeeeaisesnssecetles tcctenetenecynsseeeeencc ee sacs 2 NORTH AMERICAN HYMENOPTERA. 299 Descriptions of New Species. AMPHIBOLIPS Reinh. A. melanocera Ashm. Galls.—Greenish brown and yellowish green round, globular galls, issuing from bud axils of Quercus aquatica ; they vary greatly in size from one-quarter to half an inch in diameter. The outer shell is very thin, and interiorly there is a central kernel held in place by some very thin hair-like filaments. Gall-fly.— %. Length .18-.20 inch. Head, antenne and thorax black or brown-black, sparsely pubescent: head and thorax coarsely rugoso-punctate; an- tenn 14-jointed, rather long; pleurz coarsely rugose; scutellum rugose, bifoveo- late; coxee black, anterior and intermediate legs brown, tibize darker, feet paler; posterior legs black or brown-black; abdomen shining, red-brown; wings hyaline, veins dark, and a large brown blotch at base of radius with a pale centre. This species resembles Amphibolips citriformis Ashmwn., but is easily distinguished by its dark antennze and by the black posterior legs. The gall, too, is markedly different in shape, although constructed on the same plan as in that species. Described from eight specimens bred in June. ANDRICUS Hartig. A. quereifolize Ashm. Galls.—Succulent, round gall on the leaves of Quercus Catesbz?, with a loose, whitish kernel; constructed in the same manner as Dryophauta aquatic, but much smaller in size. Gall-fly.—%. Length .07 inch. Black, shining; sparsely pubescent and mi- eroscopically scratched ; antennze 14-jointed, honey yellow at base, brownish to- wards tip; thorax smooth, parapsides distinct; scutellum rugose, pubescent; ab- domen polished black, slightly compressed; legs honey yellow; wings hyaline, veins brownish. The above is described from three bred specimens which issued from galls in May. The galls are rare, and the flies difficult to raise. A. quinqueseptum Ashmead. Galls.—Uard, globular galls on leaf petiole of Quercus obtusiloba aPe z } projecting equally above and below ; rounded beneath, but above with a prominent projection or nipple. The gall at first is of a beautiful smooth, reddish brown, microscopically pubescent, but turns black with age. In diameter it measures one-quarter of an inch, and interiorly is divided into five longitudinal partitions, the fly living in the centre. Gall-fly.—%,. Length .12 inch. Head and thorax brown, very finely punc- tured, sparsely pubescent, the pubescence being denser on the face; antenne 14- jointed, yellowish, gradually thickening towards tip, third joint as long as one and two combined, following joints sub-equal, terminal joint very small; parap- 300 W. H. ASHMEAD, sides distinct, finely pubescent above, but much heavier pubescent at sides; seutellum coarsely rugoso-punctate, bifoveolate; mesopleurz almost black, upper portion smooth and shining, lower longitudinally strigose; legs amber colored, hairy, middle and anterior cox black at base, posterior almost black, fringed with long hairs behind, a strong tibial spur on forelegs, hind femora blackish along the upper edges, with the tibize more or less infuscated; abdomen smooth, reddish brown, shining, segment of venter visible its whole length; wings hyaline, veins pale, tinged with yellow. Described from twelve specimens bred in July. CEROPTRES Hartig. C. obtusilobz Ashmead. %. Length .15 inch. Uniform light reddish brown, pubescent; head finely punctate; thorax rather coarsely rugoso-punctate ; antenne 13-jointed; the ab- domen is compressed, and the ovipositor projects considerably ; posterior tibie and first tarsal joint dark brown; wings hyaline, with veins brown and somewhat thickened. Described from two Q specimens bred from an unnamed gall on Quercus obtusiloba. C. citriformis Ashmead. Length .04-.08 inch. Color: shining brown-black; antenne 15-jointed in 4, 14-jointed in 9, and of a light brown color; parapsides distinct; abdomen dark reddish brown, polished; legs uniform light yellowish; wings hyaline. Described from numerous specimens bred in 1881 from gall Amphi- bolips citriformis Ashm. I notice this guest fly makes a pseudo-gall on the rind. C. pomiformis Ashmead. %. Length .05 inch. Slender; head yellowish brown, with a dark brown blotch enclosing ocelli; eyes brown; antennz 15-jointed, yellowish, with the apical third brown; thorax black, finely pubescent; abdomen bright yellowish brown, infuscated towards tip; wings hyaline, veins yellow, radial area closed, narrow. This pretty little species is described from two specimens bred from gall Andricus pomiformis Bass., sent to me from California. C. virentis Ashmead. ©. Length .08 inch. Uniform yellowish brown; head and thorax finely punctured ; eyes dark brown; antennz 14-jointed, brownish towards tip; wings hyaline, veins pale yellowish. Described from specimens bred in 1881 from gall Andricus virens Ashm. C. succinipedis Ashmead. Length .05-07 inch. Brown-black, pubescent; antennz 14-jointed in Q, pale yellowish; abdomen shining black, more or less rufous at base and surrounding anus; wings hyaline, veins pale. Described from specimens bred 1881 from gall Andricus succinipes Ashm. 4 a NORTH AMERICAN HYMENOPTERA. 301 C. lanigerze Ashmead. Length .08-.10 inch. Red-brown, punctate; eyes dark brown; antenne 13- jointed, yellowish; mesoscutum infuscated along the anterior edge; abdomen darker along the sides; legs light reddish brown, with feet paler, and the posterior femora and tibite brown; wings hyaline, veins pale. Described from specimens bred from gall Andricus lanigera Ashm. in 1881. C. minutissimi Ashmead. Length .04—.06 inch. Head and thorax dark brown or shining black, rugoso- punctate; antennee long, 15-jointed in %, 13-jointed in 9; yellowish, with slight reddish tinge, the apical joint is thickened and twice as long as the penultimate; legs honey yellow; abdomen black, shining; wings hyaline, veins yellow; the valve of the ovipositor is long and projects considerably above the upper surface of the abdomen. Described from many specimens bred from gall Newroterus minutisst- mus Ashm. Cc. Catesbaei Ashmead. Length .06-.08 inch. Black, shining, and resembles minutissimi very much, but, however, is readily distinguished “from it by its much paler yellow colored antenne and legs, coarser sculpture of the thorax and scutellum, and by the ab- domen, which is testaceous at base and along the venter beneath. Described from many specimens bred from gall Andyicus Catesbaet Ashm. SYNERGUS Hartig. S. ficigerze Ashmead. ’ Length .08-.14 inch. Head and thorax reddish brown, punctate, the punctures coarser on thorax, slightly pubescent; antenne 13-jointed in Q, 15-jointed in %, yellowish; abdomen yellow, testaceous, with a large black blotch on disc; legs yellowish, posterior tibiz brown along the upper edge; wings hyaline, veins brown. This species approaches nearest to S. lignicola O. 8., but is easily dis- tinguished from it by its smaller size and brownish head and thorax. Described from seven specimens bred from gall /Holcaspis ficigera Ashm. in 1881. S. coniferze Ashmead. Length .10 inch. Reddish brown, punctate and finely pubescent, the pubescence being quite thick on the face; antenne 14-jointed, reaching to base of abdomen ; thorax transversely wrinkled with parapsides distinct; abdomen at base testace- ous; posterior femora and intermediate and posterior tibiee along upper edges brown; wings hyaline, veins pale. Described from numerous specimens bred from gall Cynips conifera Ashm. S. batatoides Ashm. Length .12-.14 inch. Head, antenne and legs yellowish; head punctate with a brown blotch on vertex; antenne short, 14-jointed in Q, 15-jointed in %, 302 W. H. ASHMEAD. thorax and abdomen black, the latter polished, the thorax is coarsely punctate and finely pubescent; wings hyaline, veins brown. Described from numerous specimens bred from gall Andricus bata- toides Ashm. in 1881. S. bicolor Ashmead. Length .12-.14 inch. Head, thorax, antenne and legs yellowish; thorax and head finely rugoso-punctatate; a small brown blotch on vertex of head and a medial stripe on mesoscutum and along the hinder edges; antenne 15-jointed in % , 13-jointed in 9 ; abdomen polished black; wings hyaline, veins yellowish. One @ is without the longitudinal medial stripe. Described from several specimens bred from gall Andricus foliatus Ashm. S. medullze Ashmead. Length .07—.16 inch, it varying greatly in size. Head and thorax coarsely ru- goso-punctate ; antennz 15-jointed in Q, 15-jointed in 4%, they with head and sides of collar yellowish; eyes and thorax brown ; abdomen black, smooth and shining; wings hyaline, veins yellow. ; Described from numerous specimens bred from gall Andricus medulle Ashm. f Although this species varies greatly in size, there is a remarkable simi- larity in coloration. SAPHOLYTUS Porster. S. gemmiarize Ashmead. %. Length .08 inch. Black, shining; head finely punctate, pubescent; an- tenne 15-jointed, light brown, becoming darker towards tip; thorax with parap- sides distinct and finely microscopically scratched; scutellum rugoso-punctate ; abdomen black, polished; legs dark brown, excepting anterior tibie and tarsi which are lighter or reddish; wings hyaline, veins yellowish and the radial area is open. Described from one & specimen bred from gall Andricus gemmaria ALLOTRIA Westw. A. lachni Ashmead. Length .06—10 inch. Black and lightly polished, with antennee 15-jointed in %, 14-jointed in 9 ; legs and antennz yellow testaceous, with the tip of antennze and posterior femora infuscated ; the scutellum is rounded, smooth and convex, but with two small foves at base; wings hyaline. KLEIDOTOMA Westw. K. vagabunda Ashmead. Length .17 inch. Slender, highly polished and of a dark wine red; antenne 13-jointed, highly polished, very slightly pubescent and gradually thickening towards tip, joints three to seven sub-equal, following joints more or less monili- form, terminal joint fusiform, and one-third longer than the penultimate; thorax smooth, high, slightly compressed at sides; seutellum deeply excavated at base with two projections at sides, and an elevated tupuliferous disc; abdomen com- NORTH AMERICAN HYMENOPTERA. 303 pressed and obliquely truncate at tip, at base there is a longitudinally strigose rim; wings hyaline, with veins of a decided yellowish cast. This beautiful species is described from a single specimen which lodged on my shoulder as I passed through a swamp, and is easily recognized from all others of this genus. The Trees and Plants on which the North American CyNIPID are found, with a List of the Described Species found thereon. THE OAKS ( Cupulifere). Enceno Oak. ( Quercus agrifolia) Andricus pomiformis, B. Callirhytis agrifolie, B. Cynips echinus, O. S. Wuite Oak. ( Quercus alba) Acraspis pezomachoides, 0. S. “ee forticornis, W. Andricus fusiformis, O. S. se lana, F. se utriculus, B. ce floeci, W. Callirhytis clavula, B. sssacceeses 34, 37 Gevsusrccc-seare-c- eso 45100 exoletus................04, 39 gracilis Horn......... 34, 3 TNAMDIS -wseecsecesseaeeasO a yO mitis Horn............39, 40 pullatus Horn........ 34, 35 SIM PlOK)...ssd-ceno-ss-O4, OO BUPMATUBS seresccvensee se 34, 37 transfugus.............34, 37 Wi Verits. gere-ceaseecnsneS05 20 vulneratus -Horn....34, 35 Hydnobius arizonensis Horn......... 138 Eiydnocera longa Dec.........505 +s. 22 HEV ODIUS -crascrinioncosceseevavaccvestnrnsee 30 Ely DOXA SPLOT) acsnceateanecsenceacenes 173 pallida: LOT -veccss 00-06 173 Hypolampsis guttatus Lec............ 29 Mb alias eeceacen onccsoncnseuss wwccevete acs 298 GGUS see ae tessetaccers dcnccnasewsisevese ace 282 IDIEOCOX:, cocesitnssaraccccavcussisecoss 283 POUL SAR sires caeny vc estinieu dele sea3 285 UeveyUillint Se tecesecusceowccncciesstienesoe=ciee> 297 | ISEHIOG ONUUBS..cs. 57 intermedius Aaron.....217, 218 bomboides................. 57 Marginatus......00- ...00 217, 219 Clausicellai......+.--+0-- Deno nitidus Aaron..........+. 217, 218 Guildiana Will......... 57, 60 productus Aaron........ 217, 219 laphroides............++- 57, 59 seminudus Aaron. ...217, 218 nigra Will..........-....57, 58 VETSICOLON.....ccnsisesseaiene 217, 218 UCM A seeeess an stocoeese 57,58 viridicyaneus............ 217, 219 Malthodes bicolor Lec..............0+8. 22 | Odonata, Earlier stages of............ 249 Megapenthes...........+.+ Beech see eren 6 | Ommalus...... sce. sseesceee eer soreceers 212, 213 ANGUIALIS.....006+c00000-" 7,8 CODTUSCAMS tlscenececerenaes 213, 214 BLELLIMAM Sesser eecsieccese 6, 7 Giversus AGron............0.0- 213 CLEZAMS.........0seeeeeeee Gand ITIGESCENS.......seenceer sereneere 213 @ranulOsus.......eeeeees Gama TepyiivientriBncsc) s---2sesne 213, 214 lepidus Lec.............. i semicircularis Aaron...213, 215 Aim alSeeseeeeeiceseeenss 6,7 SIMUOSUSeeereeceeectensenes = 213, 214 nigriventris Lec....... 6,7 | Ommatius............ Pecisceiracdecenettcanss 57 quadrimaculatus...... 7 DLA 1S\aceseeesenserieeeaerese 76 TROP ETSI. -.<. ccc. sesee--=- Se nl Oncideres:ctcseea--pcscsscressschessonicesa 194 ULE DIS eteaceere sO a CINGUIALA.........105 eeeseees 195 PATUATEUG a= cee nclveieccsle== Grali pustulata..........eee 194, 195 turbulentus............- Grad putator..........ereeeees 194, 195 Meloide, Studies among........-...... 107 texana HOrn........++ 194, 195 Metaleptus angulatus.........+.+--.0+ 174 | Onychia...... See serine cshecte cme aeeiacesess 298 Batesi Horn .......-...--- 174 | Onychogomphus........2.s.s126 ceeeeee 2538 Microphotus angustus... ...-..-.--..+- 20 lineatus. w....... 253 IMionilemias satkes-c\-s--12sc-s-0s 180, 182, 190 | Ophiogomphus.......-.-+++s+eeeeeees 249, 257 annulatum............. 182, 184 carolinus Hagen..... 258 APPYeSSUM....-.....0+6+ 182, 184 columbrinus.......... 257 ATIMALUMN..2) coseeceni=se 183, 186 occidentis Hagen.... 259 CEASSUMcorsciscsooescens 184, 189 SEVETUS seeeeeersserer eee 259 . XXXil INDEX. PAGE PAGE Orchestes betuleti Horn ...........0668 161 _ Polemius marginicollis Zec........... 21 Orizabus ligyroides Horn.............. 125 PPDINCE PS wel iweceteaecanease 21 SNOW POT Wace eanioccesclnste eee 124 BULOMUUS eC ncecercenaveces 21 Ormyrus dryorhizoxeni Ashm....... Kis || Proctacanthus..c-.sssensecsceesseeeseces 57, 73 JDO Ab Ee nscanstoceccopaboosconn XLVen ee ETOPOM pM Use wescercesesonsaeat 249, 274, 275 TOSS ASHIM.....22..0.00+2-c00e xiv ODSCUTUBsescssececreseees 274 Oxoplus corallinus.. ..........-seee0+ 0+ Wr ProOMaGus.secccontsstensesceseeerneeeree 57, 60 CTUCNLUB asrsctesccsines es esee ees 175 albifacies Will..........+ 60, 63 JOCOSUSPE OTM ce cteasiecievonoveane 175 BAS tam iipaewaseceneae sei seer 60, 63 Marginatus...........s..--- Doe Witehilvecstacasccteseroseeses 60, 61 Oxyporus austrinus Horn ............ 155 Princeps) Waller snus 60, 62 ASCIAUUS poreces es edareden == 135 MUL GB eee rerebanmeeseseentcaes 60, 61 OCCIPUAlISsetewenses mess aeaet 135 Verte Dratus:..ccssccos ceeeee 60, 62 Pacheteles parca Lec.............000- 2 | Protocanthus brevipennis........... 73 Pachylobius picivorus................+ 29 GLOGS easeseresenese-senes 3, 74 IPACLO DUG er ccsmcaclsceesejarccececeaponcesnsie UD Mill Deritiewesersesesioes 73, 74 HORM pecwenayeesstenssexts: 206, 208 philadelphieus....... 73, 74 BALM O DING is cccctesirenesceccsatnensess 211, 244 Tihs PV 2lleweeecceceses 73, T4 PAR WODOS = seccs(acect:-nasricedsecvesisoaseaces DAA | (lsSONUC GS s seseees coe sccasserelesaenenentesneeare 293 CHYYSOPYASINA ..........0..000e 245 | Pseudomus inflatus Lec .............. 31 ANAT Silccesecssaceseeeaeactoes 244) SPtGrOMalin ee soc.-2sccenemaeascecaccciene . Xvii POHICMISUSssscsceescseoroscs-sceseten sone 200) || IALEOPlauUs! apPICAlIS PCC ncsceresleseet 24 IPHaneeliBiccsccse — 7 = ae ut. =" Plate. V. Trans. Am. Ent. Soc. Vol. XII. PIS Vin: Trans. Am, Ent. Soc. Vol. XII. i § ; 2 & ny » Le ON et.) & as De Trans. Am. Ent. Soc. Vol. XII. Pl. VII. Trans. Am. Ent. Soc. Vol. XII. Pl. VIII. S.F.A. Trans. Am. Ent. Soc. Vol. XII. PLS xs eee i * ov A oes ‘ Sans a) faa ik Bian en j aren) + Oy Te a PIX. XII. Trans. Am. Ent. Soc. Vol. S.F.A. ne EY eS ty GPO 16—6059 C