LIBRARY OF 1885- IQ56 THE COMPLETE WRITINGS THOMAS SAY En of loilh EDITED BY JOHN L. LE CONTE, M. D. WITH A MEMOIR OF THE AUTHOR, BY GEORGE ORD. WITH 54 PLATES. Vol. II. PHILADELPHIA: J^. E. IFOOTE. 189L PEEFACE. While the index of the present volume was passing through the press, I received, through the kindness of a friend, a copy of the first edition of Say's Entomology, a work of extreme rarity, and which I had never before seen. It contains six plates used subsequently in the same work ; but as they represent in part species not previously described^ the work must be cited, and I therefore subjoin a list of the figures. The date on the title page is 1817. Papilio Philenor .... Plate 1 Geotrupes Tityus Nemognatha immaculata Notoxus monodon bicolor Berytus spinosus . Cicindela formosa 10-notata Much to my regret the following error was discovered too late for insertion in the corrections on page 790. Page 328 line 10, for L. guttata read L. 6-guttata. A typical specimen of this species in Dr. Melsheimer's collec- tion is the same as Lcjjtosti/lus ijiterrii^tus, {Aimiiscns interntp- tus Hald.) A typical specimen of Elater viridis (vol. 1, p. 390) in Dr. Melsheimer's cabinet, is the Corymbites afterwards described as C. micans Germar. The other species of Say, mentioned by me as not determined, do not exist in the collections either of Dr. Melsheimer or of the late Dr. Harris. CONTENTS OF VOL. II. Preface, y. Descriptions of several new species of North American Insects, (from the Journal of the Academy of Natural Sciences of Philadelphia, Vol. 1, No. 2, June, 1817 ; pp. 19—23,) 1 Some account of the insect known by the name of Hessian Fly, and of a parasitic insect that feeds on it, (ibid. Vol. 1, No. 3 ; 1817, pp. 45—48,) 4 Desci'iptions of the Thysanoura) of the United States, (ibid. Vol. 2, 1821 ; pp. 11—14,) 7 An account of the Arachnides of the United States, (ibid. Vol. 2, 1821 ; pp. 59—83,) .^ Descriptions of the Myriapodae of the United States, (ibid. Vol. 2, 1821 ; pp. 102—114,) 24 On a South American species of Oestrus which inhabits the human body, (ibid. Vol. 2, part 2, 1822, pp. 353— 360,) 32 Descriptions of Dipterous Insects of the United States, (ibid. Vol. 3, 1823, pp. 9—54,) 3ts continuation, (ibid. Vol. 3, 1823, pp. 73—104,) 67 Descriptions of Coleopterous Insects collected in the late Expedition to the Eocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under the command of Major Long, (ibid. vol. 3, 1823, pp.139 — 216,) 89 continuation, (ibid. Vol. 3, 1824, pp. 238—282,) 139 continuation, (ibid. Vol. 3, 1824, pp. 298—331,) 167 continuation, (ibid. Vol. 3, 1824, pp. 403—462,) 187 continuation, (ibid. Vol. 4, 1825, pp. 88—99,) 225 Descriptions of new Hemipterous Insects, collected in thQ Expedition to the Rocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under com- mand of Major Long, (ibid. Vol.4, 1825, pp. 307—345,) 237 IV. CONTENTS. / Descriptions of new species of Hister and Hololepta, in- habiting the United States, (ibid. Vol. 5, 1825, pp. 32 —47,) 260 Descriptions of new species of Coleopterous Insects, inhab- iting the United States, (ibid. Vol. 5, Dec. 1825, pp. 160—204,) 271 continuation, (ibid. Vol. 5, Nov. 1826, pp. 237—284,) 304 continuation, (ibid. Vol. 5, 1826, pp. 293—304,) 339 Descriptions of North American Dipterous Insects, (ibid. Vol. 6, 1829, pp. 149—178,) 348 continuation, (ibid. Vol. 6, 1830, pp. 183—188,) 368 Descriptions of new North American Hemipterous Insects, belonging to the first family of the section Homoptera of Latreille, (ibid. Vol. 6, 1830, pp. 235—244,) 371 continuation, (ibid. Vol. 6, 1831 ; pp. 299—314,) 378 Descriptions of new North American Neuropterous In- sects, and observations on some already described, (ibid. Vol. 8, 1839, pp. 9—46,) 388 A Monograph of North American Insects of the genus Oicindela, (from the Transactions of the American Philosophical Society, new series. Vol. 1, 1818, pp. 401--426,) 415 Descriptions of Insects of the families of Carabici and Hy- drocanthari of Latreille, inhabiting North America, (ibid. Vol. 2, No. 1, 1823 ; pp. 1—109,) 435 Descriptions of new North American Insects, and observa- tions on some already described, (ibid. Vol. 4, 1834, pp. 409—470,) 521 continuation, (ibid. Vol. 6, 1836 ; pp. 155—190,) 587 Descriptions of new North American Coleopterous Insects, and observations on some already described, (from the Boston Journal of Natural History, Vol. 1, No. 2, May, 1835, pp. 151—203,) 630 Descriptions of new North American Hymenoptera, and observations on some already described, (ibid. Vol. 1, No. 3, May, 1836, ; pp. 210—305. 072 continuation, (ibid. Vol. 1, No. 4, May, 1837 ; pp. 361 —416 ''47 Additions and Corrections, ^^^ Index, ^91 ENTOMOLOGICAL WRITINGS OF THOMAS SAY. [From the Journal of the Academy of Natural Sciences, Vol. 1, No. 2 ; June, 1817 : pp. 19—23] Descriptions of several New Species of North American Insects. Order COLEOPTERA. Genus CICTNDELA Linn. Fab. &c. Antennae inserted into the anterior margin of the eye. Palpi filiform, the intermediate and posterior ones nearly equal, penulti- mate joint of the latter hairy. Thorax short. Elytra flat, rounded at the tip. Clypeus shorter than the labrum. 1. C. FORMOSA, American Entomology, Plate VI.* [Plate XVIII : ante, 1, 35.] 2. C. DECEMNOTATA, American Entomology, Plate VI. [Plate XVIII : ante, 1, 34.] [20] 3. C. DORSALis. — Brassy : elytra white ; two curved lines on each, suture and curved branch near the base green: lip and tail pale. Inhabits New Jersey. Head brassy, naked, with green edges. Labrum, mandibles and palpi white ; tipsof the mandibles and terminal joint of the palpi dusky. Thorax brassy, varied with green, margin and back longi- tudinally hairy. Scutel green. Elytra white, irregularly punc- tured ; suture green, a lunated branch on each elytron terminating at the middle of the base ; disk with two abbreviated lines, of which the anterior is curved outwards and the posterior one in- wards, respectively terminating at one of the ends opposite the cen- *These reference are to the suppressed first edition of the American En- tomology, which I have never seen. The first volume of the second edition reprinted in this work was published in 1824. — Leg. 2 ACADEMY OP NATURAL SCIENCES tre of tte other. Body beneatla hairy on the sides ; hair short, prostrate, cinereous ; last segment of the abdomen and tail yellow. ish. On the sea beach of New Jersey; numerous. [Afterwards described by Dejean as C. signata. — Lec] 4. C. HiRTicoLLis. — Dull brownish-cupreous, beneath green ; trunk and head with cinereous hair ; lip white ; [21] outer margin of each elytron white, with two abbreviated bands, and an interme- diate refracted one ; trochanters purple. Inhabits North America. Head coppery, varied with green and blue. Labrum and base of the mandibles white. Thorax very hairy, impressed lines blue . Elytra punctured irregularly with green, a marginal lunale at base , the extremities of which are almost equally prominent ; the band is divaricated on the margin so as to join the anterior lunule, but it is interrupted before the terminal lunule, abruptly refracted at the centre of the elytron and curved near its termination, towards the suture. Body beneath green, very hairy. Length rather more than half an inch. Common in Pennsylvania, very much resembles C. tn'fasciata , for which it is probable it has generally been mistaken. [This description is very indefinite, but the expressions * thorax very hairy,' and * band divaricated on the margin so as to join the anterior lunule,' lead me to refer it to our common sea shore spe- cies afterwards described as C. alholilrta Dej.; the figure given by Say in the Transactions of the American Philosophical Society (infra) represents perfectly that species. It does not live within the limits of Pennsylvania, though on the banks of rivers beyond the Mississippi it is occasionally seen. — Leg.] 5. C. pusiLLA. — Above black, obscure ; elytra with two lunules and a recurved band, white. Body beneath black-blue, or green- ish. Trochanters testaceous. Inhabits with the first. [Kansas and Nebraska.] Elytra with a marginal lunule at base and another at the tip, both very narrow and white ; an intermediate band, divaricate on the margin, recurved at the middle of the elytron and terminating near the suture behind. Labrum and base of the mandibles whitish ; the four basal joints of the antennae purple. Length not quite half of an inch. Found by Mr. Nuttall. The band is often obsolete, or only detached portions of it are visible, the enlarged marginal part is permanent. [22] [Vol. I. OF PHILADELPHIA. 3 Genus NEMOGNATHA Illiger, Zonitis of Fabr. and Latr. Maxillse very much elongated, inflected, filiform. N. liMMACULATA. — Lemou yellow, immaculate. Elytra with scattered punctures. Maxilla not longer than the thorax, and with the antennas and palpi black. N. IMMACULATA, American Entomology, plate III. [Plate VII.; ante, 1, 13.] Inhabits the plains of the Missouri. Antennae black, basal joint pale testaceous. Eyes, maxillge, pal- pi, tips of the thighs and tarsi black. Elytra irregularly punc- tured, naked, polished. Comes near to the description of Zonttis pallida of Fabricius, but that insect is said to be large, and may probably be a true Zonitis. Our specimens are not more than half the size of JV. vittata. Found on thistles (Cardui) by Mr. Nuttall: numerous. Genus ZONITIS Fabricius and Latreille. Maxillae not elongated. Antennae with the first and the third joint of the same length, the second a little shorter, the third and following cylindrie, the last one fusiform, terminating abruptly in a short point. Z. BILINEATA. — Ferruginous. Elytra pale yellowish, with a black fillet. Scutel black. Inhabits with the preceding on thistles. Nuttall. [23] Antennae black, the two basal joints ferruginous. Eyes black. Elytra naked, punctured, the fillet occupies the middle of each elytron and is abbreviated at the base and apex. Scutel black. Tibia fuscous. Less than the preceding insect. In its color and appearance, except as to size, it resembles N. vittata. Order BIPTERA. ■ Genus DIOPSIS Linn. Head furnished with two inarticulate, immoveable horns. Eyes situated at the extremit.es of the horns. Antennae small, placed beneath the eyes. D. BREVicoRNis — Black, pedicels short, not so long as the in- terval between the bases. [Ante vol. 1, p. 116.] Inhabits Pennsylvania. Head rufous; vertex brown, thorax blackish, a little blended 1817.] 4 ACADEMY OF NATURAL SCIENCES •with cinereous, a lunate impression on each side before, an impres- sed band on the middle interrupted on the back ; and an impressed angulated one behind. Lateral spines short, black ; posterior ones longer, rufous. Wings fasciated with brown near the apex. Feet rufous, thighs, and tibia towards the tips, blackish, anterior thighs thickened. Poisers white. Abdomen black immaculate. Length rather more than three-twentieths of an inch. Extremely rare ; I found but a single individual in May last seated on a leaf of the Skunk Oabbage, {Pothos fcetida) near the Wissahickon Creek a few miles from this city. This insect will be considered as a most interesting addition to the American Fauna. (AcMas Fab.) The insects above described I believe to be new, at least they are not noticed in any book to which I have access. [Prom Vol, 1, No, 3 : pp. 45—48.] SoBie account of the insect known by the name of Hessian Fly, and of a parasitic insect that feeds on it. Read June 2-tth, 1817. Order BIPTERA. Genus CECIDOMYIA. Genus Tipula of Linn6 and Degeer. Chironomus of Fabr. Tri- chocera of Lamarck. Cecidomyia of Latr. and Meigen. Antennae filiform, joints subequal, globular, hairy. Proboscis salient. Wings incumbent, horizontal. C. DESTRUCTOR. — Head and thorax black ; wings black, ful- vous at base ; feet pale, covered with black hair. Inhabits the Northern and Middle States. Body clothed, with short black hairs ; head black ; antennae shorter than the body, somewhat smaller toward the tip, verti- cillate, joints moniliform, separated by a hyaline filament. Tho- rax gibbous, black, glabrous, and polished. Scutel prominent, color of the thorax rounded behind. Wings ciliate, rounded at tip, blackish, the fulvous color of the base is sometimes ex- tended upon the nerves of the wing, paler and gradully disap- pearing before the middle ; longer than the abdomen. Feet long, slender, [46] thighs lulvous at base, furnished at the tip with [Vol. I. ^ PHILADELPHIA. 5 several very acute claws. Poisers, pale nearly as loug as the thorax, with a suboval capitulum. Breast sometimes fulvous. Abdomen brownish. Female. — Antennae longer than the thorax, the joints some- what oval, not separated by filaments, xlbdomen elongate-oval, above rectilinear, beneath somewhat ventricose, fulvous, with a dorsal and ventral black vitta widely interrupted by the sutures. Tail more or less acute in the dead specimen in proportion as the oviduct is exserted. Length rather more than three-twentieths of an inch. Eggs elongated, linear, pale fulvous. Lcu'va. — Body somewhat fusiform, whitish ; tail acute, rather abruptly attenuated ; head incurved and attached by the mouth j above hyaline, exhibiting an internal, abbreviated, visceral, green line ; beneath with opaque white clouds, which in the young ani- mal are perfectly separate and about nine on each side, with an intermediate series of smaller ones; as the larva advances to its full statux'e, these unite so as to exhibit the appearance of regular transverse segments ; near the anterior extremity are the rudiments of feet resembling obsolete tubercules, or crenulae ; when taken from the culm it is almost inert, exhibiting very little motion to the eye. Length three-twentieths of an inch, breadth one-twentieth. Papa. — Resembles the mature larva, but is of a dark reddish- brown color; and appears perfectly inert. This well known destroyer of the wheat has received the name of "Hessian Fly," in consequence of an erroneous supposition, that it was imported in some straw with the Hessian troops dur- ing the revolutionary war. But the truth is, it is absolutely un- known in Europe, and is a species entirely new to the systems — being now for the first time described. The insect described by Mr. Kirby in the Trans. Lin. Soc. of Lond. vol. iv. p. 232, and named by him Tipula Tritici, is without doubt of the same genius with this, but specifically distinct. [47] The history of the changes of this insect, is probably briefly this : — The eggs are deposited by the female in difierent numbers from one to eight, and perhaps more, upon a single plant of wheat, and in so doing the parent exhibits another instance of that provident care for the welfare of her offspring, which is so strongly evinced by many of the insect race. The egg is not placed at the axilla of either of the leaves indifferently, but display- 1817.] 6 ACADEMY OP NATURAL SCIENCES ing some portion of botanical knowledge, the fly carefully insinuates lier elongated oviduct between the vagina of the inner leaf and the culm nearest the root of the plant, where the larva when ex- cluded from the egg will be in immediate contact with the culm, from which alone its nourishment is derived. In this situation, with the body inverted, the head being invariably towards the roots, or if above, towards the first joint, the infant larva passes the winter. The pressure and puncture of the insect in this state of its being, upon the culm, produces a longitudinal groove of sometimes sufficient depth to receive almost one-half of the side of its body. When several of them are contiguous on the same plant, the pressure on the body of the larva is un- equal, and an inequality in the form of the body is the conse- quence, as well as the destruction of the plant which is subjected to their attack. The perfect fly appears early in June, lives but a short time, deposits its eggs and dies ; the insect from these eggs complete the history by preparing for the winter brood. Order HYMENOPTERA. Genus CERAPHRON Latr. Antennae infracted, moniliform, ten or twelve jointed, basal joint long, cylindrical. Abdomen subovate. Inferior wings with- out apparent nerves. Superior wings with a costal nerve, and a single branch, forming an incomplete radial cellule. C. DESTRUCTOR. — Black, granulated ; abdomen glabrous, polished ; feet, and base of the antennse, whitish. [48] In the Larva of Cecidomyia destructor. — Head black, opaque, sometimes bras.sy, granulated over its entire surface ; eyes not prominent, rounded in compliance with the curve of the head, and with the stemmata, red-brown ; antennje pale brown, fur- nished with short cinereous hairs, the two basal joints pale yel- lowish ; the terminal ones in the male a little dilated and ap- proximated so as to form an obvious ovate-acute mass. Thorax with the granulae equal to those of the head; black, usually brassy before the line of the base of the wings ; nerve of the wings pale brownish ; feet whitish with black apophysis. Abdo- men ovate-acute, perfectly black, highly polished and furnished with a few short hairs ; the segments of the base are sometimes pale yellowish or testaceous. Length one-tenth of an inch. [Vol. I. OP PHILADELPHIA. i This is often mistaken for the Hessian fly, in consequence of being found in wheat fields in vast numbers during the devasta- tion committed there by that insect, and many have been deceived by the specious circumstance of its evolution from the pupa it- self of the destroying larva, under their own observation. But the truth is the Ceraphron belongs to that vast tribe of insects included by Linn6 under the Genus Ichneumon. True to the manners of its kind the parent deposits her eggs within the bodies of the larvae of the Cccidomyia destructor, through a puncture made by her acute oviduct for the purpose ; the young, when disclosed from the egg, feeding securely within the body of the larva, at length kills it, but not in general until after its change into the pupa state. Protected by this indurated covering, the parasite undergoes its change, and appears in the perfect state, about the latter part of June. It seems probable that this insect prevents the total loss of our wheat crops, by re- straining the increase of the Cecidomyia within certain bounds. The Ichneumon Tijjulse of Mr. Kirby is congeneric with this, but is doubtless specifically distinct. [From vol. 2, 1821 : pp. 11—14.] Descriptions of the Thysanonrse of the United States. Read Nov. 21st, 1820. Genus MACHILIS Latr. Eyes compound, occupying almost all the head ; [12] abdo- men beneath with an appendage for leaping : tail with three styles, of which one is above th^ others. M. VARIABILIS. — Superior caudal process more than double the length of the others : false feet bisetous at tip : color cine- reous or iridescent, varied with black. Inhabits North America. Cabinet of the Academy. Body above cinereous, somewhat iridescent, varied with black ; gibbous portion of the body not difi"erently colored ; a more or less regular whitish vitta ; false feet white, hirsute, setaceous at 1821.] b ACADEMY OF NATURAL SCIENCES tip : superior caudal process more than double the length of tlio inferior ones. Var. a. Body above unicolor, destitute of the white dorsal vltta. Var. b. Body ferruginous, with dusky lateral spots. Var. c. Body with several snowy spots each side. A common insect in many humid places, probably in almost every temperate part of North America. We observed it as far south as East Florida. It is subject to a great many variations. Genus PODURA. Antennae four jointed, filiform, terminal joint entire; body cylindrical : trunk distinct. 1. P. FASCiATA. — Body yellowish-white with four distant black bands; tail black; bands [13] paler beneath; spring- white ; antennae blackish ; eyes black. Length one-twentieth of an inch. Cabinet of the Academy. In considerable numbers under the bark of decaying live oak, &c., in Georgia and East Florida. 2. P. BICOLOR. — Body plumbeous ; feet with a few hairs, rather paler at base ; nails small, acute : spring large, white ; eyes deep black. Length from one tenth to three-twentieths of an inch. Cabinet of the Academy. Our most common species, under stones, &c. 3. P. IRIGOLOR. — Body blackish iridescent; thorax with long hairs before ; abdomen hairy at tip ; feet hairy, whitish ; head beneath and antennae hairy. Length nearly one fifth of an inch. Cabinet of the Academy. Inhabits Pennsylvania, common. Genus SMYNTHURUS Latr. Antennae attenuated towards the tip, four-jointed, ultimate joint composed of many smaller ones ; trunk and abdomen united into a rounded mass. S. GUTTATUS. — Body yellowish white, with numerous reddish- brown, irregular spots, disposed in bands ; numerous, sparse, [Vol. n. OF PHILADELPHIA. 9 white hairs, and two tubercles each side of the middle, which are truncated at tip ; beneath white ; antennae reddish-brown, hairy ; face maculated, a line of irregular spots [14] behind the eyes; eyes black ; spring flesh-colored. Length rather more than one-twentieth of an inch. Cabinet of the Academy. Found under the bark of the long leaved Pine [P. palustrls) in Georgia. [From Vol. 2, 1821 ; pp. 59—83.] An account of the ARACHNIDES of the United States. The following descriptions of the Aracluiides of this country^ which respire by means of tracheae in the manner of insects, may be regarded as the continuation of a series of essays, of which the " account of the Crustacea," &c., is the first, on the vast orders of ai'ticulated animals with articulated feet, (Annulosa of Cuvier) natives of this country. As the nature of this journal precludes the introduction of old matter or known facts, I shall confine myself in its pages, to the description of such of these animals only, as appear to be unknown to naturalists, or to the elucidation of such, as from their obscurity, are not understood. Subclass I. CEPHALOSTOMATA. Order 1st, PODOSOMATA. Genus *ANAPHIA.t PL 5. fig. 7.— a, Trophi. Artificial Character. — Mandibles longer than the rostrum^ first joint longer than the second; palpi none ; nails single. Natural Character. — Body very slender, composed of four seg- ments bearing feet, and a small suboval caudal process; head prominent, not perceptibly contracted behind, and consisting of a prolongation of the anterior segment of the body : eyes four, [60] inserted on a common tubercle, upon the top of the head : mandi- bles robust, didactyle, inserted at the extremity of the head, por- rected, parallel, two-jointed, longer than the rostrum, first joint *From a, without, and af «, tactus the touch. 1821.] 10 ACADEMY OF NATURAL SCIENCES elongated attaining the tip of the rostrum ; hand abruptly inflect- ed upon the tip of the rostrum : rostrum porrected, cylindrical, truncated at tip, shorter than the body, and inserted beneath the first segment ; palpi none; feet eight, filiform elongated, slender : coxre three-jointed, the middle one longest: thighs one-jointed; tibiaa, two-jointed : tarsi two-jointed, the first very short ; nails single, arcuated, capable of being inflected. A. PALLIDA. — Body whitish : ocular tubercle acute at tip ; eyes sanguineous ; hands suboval, slightly hairy, not dilated, in- flected vertically, and with the fingers, hardly more than two-thirds the length of the preceding joint ; fingers arcuated, crossing each other near the tip ; a small, rather acute tubercle at the base of the anterior feet (probably the rudiment of the egg-bearing organ ;) coxae second joint clavate ; tibise first joint rather shorter than the second. Length of the body one fourth of an inch. Span of the feet one and one half an inch. Inhabits the coast of South Carolina. Cabinet of the Academy. Of this new genus I found two specimens in the bay of Charles- ton, S. C, upon the branches of the Gorgonia virgidata, and as they have not the egg-bearing organs, I suppose them to be males. This [61] animal resembles PhoxicMlus in being destitute of palpi, but differs from it in having didactyle mandibles and simple nails. In the form of the mandibles it resembles Nymphon and Am- moihoea but the want of palpi distinguishes it from those genera, its proper situation is probably next to the genus PhoxicMlus. It unquestionably, is generically the same with Phalangium aculea- tum of Montague, (Trans. Lin. Soc. vol. 9, tab. 5,) which Dr. Leach, in the article Crustaeeology of Brewster's Encyclopoedia, refers to the genus Nymphon, but which, as far as I can discover, he has omitted in his subsequent works. It will of course be a second species of this new genus. Order 77. POLYMEROSOMATA. Family 2. SCORPIONIDEjE.. Grenus BUTHUS Leach. Scorpio Latr. Palpi brachiform, didactyle; eyes eight; abdomen terminated by a caudal process of six articulations, of which the terminal one is armed with a venomous aculeus. [Vol. II. OP Philadelphia. 11 B. viTTATUS. — Fuscous, With three fulvous vittae ; sides black. Inhabits Georgia and Florida. Cabinet of the Academy. Body above granulated, granules irregular, distant, three ful- vous equal vitta, and an elevated, interrupted vertebral line ; sides black, rugose, beneath white ; thorax reddish-brown, more scabrous before [62] and behind, hardly marked by the vitta, sube- marginate before, and divided by a longitudinal impressed line, region of the dorsal eyes blackish j palpi longer than the body, with granulated lines, carpus with three or four of the granules more conspicuous ; hand subovate, greatest diameter about equal to that of the preceding joint ; fingers filiform, incurved, longer than the hand, reddish brown, furnished with numerous minute teeth feet paler than the palpi, minutely granulated above and beneath ; caudal process color of the palpi, longer than the body, with granulated costa, those of the penultimate segment not more conspicuous ; terminal segment subovate, slightly mucronate beneath the aculeus, the costal granulsB minute. Length from tip of the palpi to tip of the caudal process, one inch and seven-tenths. I found numerous specimens of this species on the sea islands of Georgia and in East Florida, hybernating beneath the bark of trees. The wound inflicted by the puncture of their aculeus, causes much pain and intumescence, but is readily cured by the topical application of the volatile alkali. The species to which vittatus is allied, are the punctatus of Degeer and amencanus of Linne, but according to Latreille (v. Sonnini's Buffon) these are both spotted with brown, the caudal process of punctatus being of the length of the body and that of americamis three times the length of the body. [63] It is how- ever very possible that our species may be a variety of piunctatus. Genus CHELIFER GeofiF, Leach. Palpi brachiform, didactyle ; thorax with the first segment divi- ded by a transverse indented line ; eyes two ; mandibles short. 1. C. MURICATUS. — Third joint of the palpi nearly three times 1821.] 12 ACADEMY OF NATURAL SCIENCES as long as the second, linear, gradually a little attenuated to the base ; thorax muricated. Inhabits North America. Cabinet of the Academy. Body ovate, narrowed before, rounded behind ; thorax black- brown opake, gradually narrowed from the base to the tip of the mandibles, armed with numerous short, robust spines ; feet rufo- testaceous ; palpi rufous basal joints subglobular, gibbous behind third joint cylindrical, nearly three times longer than the second, armed with short rigid hairs, and gradually attenuated to the base, fourth joint shorter but somewhat larger than the preceding one, and gradually much attenuated to its base ; hand black-brown, above oblong subovate, laterally linear, fingers as long as the hand paler, incurved and furnished with a few elongated, flexible hairs ; abdomen above black-brown, and with the feet furnished with minute, spine-like hairs, segments margined with obsolete pale testaceous. Length rather more than one-tenth of an inch. [ 64 ] Common in decaying wood, under bark, in houses, under stones, &c. I found a variety on the river St. John, in East Florida, of which the anterior portion of the abdomen and posterior part of the thorax is rufous. This species considerably resembles C. Hermanjii of he&ch, (Zool. Misc. vol. 3, p. 49.) 2. C. OBLONGUS. — Second joint of the anterior feet hardly twice as long as the first, rather larger towards the base ; thorax polished. Inhabits North America. Cabinet of the Academy. Body oblong, sublinear : thorax reddish-brown, polished; tes- taceous at base, rather abruptly attenuated from the middle to the tip, and with abbreviated flexible hairs, instead of spinules : feet pale, testaceous ; palpi reddish-brown, with dilated, short joints, and furnished with numerous flexible hairs, second and third joints subequal, the latter rather shorter and dilated in the mid- dle : hands ovate, almost truncated at base j fingers shorter than the hand, and with a few longer hairs ; abdomen above brownish, slightly hairy, polished, margins of the incisures testaceous. Smaller than the last. Occupies the same situations as the preceding. It bears con- [Vol. II. OP PHILADELPHIA. 13 siderable resemblance, in the form of the palpi, to the C. Geoffroyi of Leach, (Zool. Misc. p. 50.) This species, as well as the pre- ceding, are readily distinguishable from the Phalangmm aca- roides of Linne, by the mutic antepenultimate segment of the palpi. Order 3. BUOMEBOSOMATA. Family 2. PHALANGIDEjE. Genus PHALANGIUM. Body rounded; feet elongated; tarsi with numerous joints; mandibles salient much shorter than the body : eyes two, sup- ported on a common tubercle. 1. P. viTTATUM. — Whitish, with a dorsal fuscous vitta ; termi- nal joint of the palpi not pectinated with spines. Inhabits the Southern States. Cabinet of the Academy. Body whitish, truncated and fuscous behind, a dorsal fuscous vitta from the clypeus to the cloaca and lateral fuscous line, above with dense, obtuse granules, beneath with distant ones ; three profoundly impressed lines before the middle, of which the an- terior one is semicircular including the ocular tubercle, the inter- mediate one transverse, and the posterior one recurved ; ocular tubercle prominent, slightly contracted at base, crowned with from four to six more conspicuous, acute spines : clypeus not elevated, concave beneath the obtuse tip ; feet, second pair about fifteen times as long as the body ; tarsi capillary, articulations not con- tracted. Length, female nearly one-fifth of an inch. Male much smaller. The armature of the ocular tubercle is obsolete in the male, and in this sex there are generally two whitish [66] lines, drawn from the base of the occular tubercle to the tip of the clypeus, which are also sometimes visible in the female. I have not found these in coitu, but have considered them of the same species, from their being associated and somewhat similar in form and markings. 2. P. DORSATUM. — Whitish with a dorsal fuscous vitta, joints of the palpi armed with a series of spines. Inhabits the United States. 1821.] ACADEMY OF NATURAL SCIENCES Cabinet of tlie Academy. Body rounded behind, whitish, a dorsal fuscous vitta continued from the clypeus to the cloaca, and obsoletely punctured with whitish, a few submarginal, obsolete, irregular lines or spots ; granules dense, obtuse, not prominent ; ocular peduncle promi- nent, contracted at base, slightly muricated before, obsoletely granulated ; clypeus not elevated ; palpi rather long, robust ; second, third, and fourth joints pectinated on the exterior edge with acute, distant spines; fifth joint more densely pectinated on the inner edge : feet armed with minute distant spines ; coxae blackish ; pectus with distant very distinct, obtuse granules ; radical supports of the feet with a moniliform line each side in the incisures ; venter nearly glabrous, granules indistinct : ter- gum not deflected. Length of the female one-fifth of an inch. Very similar in color to the preceding, but sufficiently distinct by the spinulose palpi, &c. 3. P. NIGRUM. — Body ovate, blackish : clypeus [67] prom- inent; radical joint of the three anterior pairs of feet armed with a spine ; pectus and base of the feet white. Inhabits the Southern States. Cabinet of the Academy. Body ovate, a little dilated each side behind the posterior feet, blackish, with a few obsolete paler spots, above and beneath above granulated, granules spherical, irregularly placed in some- what reticulated lines; ocular tubercle destitute of spines, with obtuse granules; clypeus prominent, somewhat elevated; feet short, fuscous, whitish at base ; second pair hardly four times as long as the body, and, with the first pair, armed with a prominent, cylindric, obtuse spine behind the basal joint; third pair with a similar spine before; pectus whitish; venter blackish. Length, female nearly one-fifth of an inch. A very distinct species, and not uncommon in the Carolina's and Georgia. 4. P. GRANDis [GRANDE]. — Body oval, covered with short spines ; ocular tubercle spinous ; feet rather short. Inhabits the Southern States. Cabinet of the Academy. Body oblong-oval, scabrous, with approximated, robust, short, [Vol. II. OF PHILADELPHIA. 15 acute, spinules ; rufo-ferruginous, two impressed transverse lines before the middle ; ocular tubercle prominent, slightly contracted at base, crowned with numerous, robust, acute spinules ; clypeus hardly elevated ; feet rather short ; pectus with numerous, minute acute granules; venter with but few. [68] Length, female nearly-seven-twentieths of an inch. Much the largest species I have seen. Genus GONYLEPTES Kirby. Feet moderate; tarsi from sis to ten-jointed; mandibles chel- ate ; maxillae none ; palpi unguiculated. G. ORNATUM. — Ocular tubercle hardly elevated, uuarmed ; hind feet remote; two erect spines behind. Inhabits Georgia and Florida. Cabinet of the Academy. Body ovate reddish-ferruginous, destitute of granules, edge slightly contracted over the insertion of the fourth and fifth pairs of feet, two small acute tubercles on the middle of the disk, and two large, prominent, erect, acute spines on the hind margin, no impressed line before the middle, an anterior arcuated yellow transverse line connected to a posterior undulated one by a yellow line which is crossed near the middle by two obsolete yellow bands ; ocular tubercle slightly raised, uuarmed ; distance between the eyes much greater than their diameters, orbits black ; clypeus abruptly somewhat acute in the middle of the tip : mandibles rather small, the fingers subequal, and crossing each other at tip ; palpi robust, and when at rest concealing the mandibles ; penul- timate articulation dilated on the exterior side and elongated and depressed : terminal joint half as long as the preceding, cylindrical ; terminal nail elongated, moveable capable of being inflected ; [69] feet short, not three times as long as the body, three anterior pairs before the middle, posterior ones behind the middle and re- mote from the others ; fourth and fifth pairs with double nails : abdomen, segments with a series of equidistant, minute tuber- cles. Length one-fifth of an inch. This remarkably distinct species, we first discovered on Cum- berland island Georgia, and subsequently many specimens occurred 1821.] 16 ACADEMY OP NATURAL SCIENCES in East Florida, where it appears to be common. It is not an in- habitant of the Northern States. Family 3. ARANEIDEjE. Although I have a considerable number of descriptions of Araneides, which I think are new, yet, as I am not sufficiently well acquainted with the species of this family, in their different ao-es, prudential motives induce me to refrain from publishing them until further investigation shall qualify me for the task. Order 4. M0N0MER0S03IATA. Genus TROMBIDIUM. Body consisting of a thorax and head united and distinct from the abdomen ; two anterior pairs of feet distant from the others ; eyes pedunculated, lateral ; palpi with a moveable appendice be- neath their tips. 1. T. SCABRUM. — Body ovate, broadest and very obtusely rounded before, pale reddish, minutely scabrous, surface unequal, with numerous [70] indentations, and with hardly percepti- ble hairs ; thorax obtriangular, short : eyes white ; feet whitish. Cabinet of the Academy. In forests, on trees, &c. ; not uncommon. 2. T. SERiCEUM. — Body oblong-subovate, broadest before, narrowing behind, densely covered with short silken hair ; thorax elongated, sublinear, slightly contracted before the middle, and with a darker, central line above : eyes white, placed in a trans- verse line ; feet paler, whitish. Cabinet of the Academy. Inhabits trees, in forests, under stones, &c., and is more com- mon than the preceding. Genus ERYTHK^US Latr. Body without division, the two anterior pairs of feet not dis- tant from the others ; eyes two, sessile ; palpi conic, chelate. E. MAMILLATUS. — Body ovate, granulated, reddish-yellow, with a marginal impressed line, edge thickened, a robust, obtusely conic, granulated spine on the anterior lateral edge, before the middle of the disk two indented punctures, a few distant hairs ; eyes approximated, whitish ; mandibles granu- [Vol. II. OP PHILADELPHIA. 17 lated, a rounded tubercle on each of the middle above ; feet paler than the body, yellowish, with scattered hairs. Less than one-twentieth of an inch. Under bark of trees, &c. Greorgia and East Florida. [ 71 ] Genus GAM ASUS Latr. Mouth with mandibles ; palpi prominent, very distinct, fili- form ; pulvilli at the apex of the tarsi. 1. G. ANTENN^PES. — Body ovate, rufous, somewhat nar- rowed before, hairy and coriaceous; edge of the abdomen membranaceous, white ; feet, anterior pair filiform, antennaeform, longer than the body, remaining pairs much more robust, sub- equal, posterior thighs tridentate near the inferior tip ; origin of of the palpi with five or six acute spines above. Cabinet of the Academy. I have frequently observed this species, inhabiting, in con- siderable numbers, the body of Passalus cormitus. The fore feet are, as their slender appearance indicates, used as antennae to feel the way, and not as feet to support the body. 2. G. SPINIPES. — Body suboval, hirsute, rufous; feet with rather longer distant hairs, second pair very robust, third joint armed beneath with a large, prominent, acute, spine, which is nearly as long as the transverse diameter of the joint, compressed, slightly serrated on its anterior edge, and with an accessory tooth or two at its base : fourth joint with an obtuse tooth be- neath, sixth joint with a robust spine before its inferior middle, first and third pairs unarmed, fourth pair dentate beneath the third and fourth joints. Cabinet of the Academy. Inhabits . [72] Remarkable by the prominent spine of the second pair of feet. 3. G. MUSCULUS. — Body pale, oval, with scattered hairs more numerous each side ; feet paler, with a few hairs above, two an- terior pairs distant from the others, anterior pair longest, second pair rather more robust. An active little animal, found in great numbers on an anony- mous species of Mus, which inhabits East Florida. 5. G. NiDULARius. — Body oblong-oval, somewhat depressed, with a slightly elevated margin, and with scattered hairs, whitish 1821.] 2 18 ACADEMY OP NATURAL SCIENCES with internal blackish clouds, and two impressed points in the middle of the back ; feet paler, with a few hairs. Cabinet of the Academy. Less than one-fortieth of an inch. Inhabits Hirundo viricUs, their nests and young. I am in- debted for specimens to Mr. Reynall Coates. 5. G. JULOIDES. — Body oval, pale brownish, depressed, be- hind vesicular and whitish, the coriaceous epidermis of the ter- »um terminating before the vesicular posterior margin in an emar- t'ination ; feet short and very robust ; pulvilli dilated, very short. Cabinet of the Academy. I obtained several specimens from the body of Julus margi- natus. I. have also observed it on Polydesmus virgimensis. [73] Genus ORIBITA Lat. Body coriaceous, capitate or rostrated before, palpi and mandi- bles concealed within the mouth ; feet terminated generally by three nails, without pulvillus. 1. 0. CONCENTRICA. — Black, opake ; tergum concentrically Uneated ; venter plain. Inhabits Pennsylvania. Cabinet of the Academy. Body spheroidal, black, opake, rounded before and carinated behind, invested with a brown epidermis ; disk with about four elevated concentric circles, connected by numerous interstitial elevated lines ; posterior carina crenate in compliance with the concentric lines ; head, subtriangular, rugose ; oral aperture oval, closed by a valvular mentum ; eyes two, minute, brownish, ele- vated on an elongated, slender filiform peduncle ; orbits elevated, rather large, placed near the base of the head above ; feet rather short, deep black, minutely granulated, terminated by three in- curved nails ; venter plain, granulated, valves of the cloaca some- what lineated. A rather common insect, it moves very slowly, and inhabits beneath the bark of trees. I have found it, most frequently, beneath the bark of the common Carya (Nuttall) tomentosa. 2. 0. GLABRATA. — Body glabrous, polished, globular-oval black. Inhabits Georgia and East Florida. [74] [Vol. II. OF PHILADELPHIA. 19 Cabinet of the Academy. Body spheroidal, somewhat oval, glabrous, polished, black ; head longitudinally semi-oval ; eyes sessile, near the base of the head each side, remote; feet hairy, pale testaceous, subequal, shorter than the body. I found this species several times under stones, &c. It is sluggish in its movements, like other species of this genus ; when alarmed or in danger the feet are thrown forward together over the mouth, and the whole of the thorax is then deflected upon the anterior part of the body ; in this state the general form is a solid oval. Genus BDELLA Latr. Palpi elongated, terminated by setae; rostrum conic; eyes four; posterior feet longest. B. OBLONGA. — Body oblong-oval, bright red, paler in the middle and beneath, with a few scattered hairs ; rostrum nearly half as long as the body, with two or three pairs of stouter hairs; palpi four jointed, resembling arms; first joint destitute of hairs and longer than the others conjunctly; second and third joints very short; fourth joint longer than the two preceding ones, attenuated towards the base and truncated at tip, with several short hairs and two terminal setae longer than itself, of which the inner one is rather shorter; feet hairy, subequal, pale, the posterior ones rather longer. C"^^] Length rather more than one-twentieth of an inch. Found in Georgia, under stones, under bark of decaying trees, &c., in rather moist situations. Genus IXODES Latr. Palpi short, simple, valvular, forming with the haustellum a short rostrum ; mandibles none ; feet with a pedunculated pul- villus and two nails ; eyes obsolete or wanting. 1. I. ANNULATUS. — Body oval, pale reddish-brown, tinged with sanguineous, particularly behind, and with several longi- tudinal and oblique, black, abbreviated lines, scattered punc- tures, and three abbreviated, longitudinal impressed lines behind; rostrum, with the palpi dilated, rather suddenly contracted at base, and annulated more prominently beneath with about two elevated lines, which on the sides produce an angulated appear- 1821.] 20 ACADEMY OF NATURAL SCIENCES anee, much shorter than the haustellum, rounded at tip ; haustel- lum, the two superior organs emarginate at tip, exterior division dentate beneath, inferior organ with numerous resupinate teeth resemhUng fenestrate punctures ; posterior to the origin of the palpi above is an orbicular, obscure assemblage of punctures re- sembling eyea ; black dorsal lines of the male somewhat regular, consisting usually of a dorsal line divaricating before, and behind, the middle, furnishing a branch each side, which at the tip of the abdomen [ 76 ] is confluent with a lateral line, which also branches off in two or three short lines towards the feet ; feet with a short robust nail, and a reclivate pedunculated pulvillus and nails. Found in considerable numbers on a Cervus mrginianns, in East Florida. 2. I. ORBICULATUS. — Body nearly orbicular, slightly narrower before, punctured, ten or twelve longitudinal, abbreviated im- pressed line on the posterior margin, marginal impressed line none, two longitudinal indented lines before the middle ; head transverse subquadrate, posterior edge very obtusely rounded, the posterior angles complying with the general curve ; palpi oblong, sublinear. Cabinet of the Academy. Found inhabiting Sciurus capistratus of the Southern States. 3. I. CRENATUs. — Body ov^te, with distant deeply impressed punctures, posterior margin lobated by ten or twelve profoundly indented lines, which are abbreviated by an impressed submar- ginal line, which becomes gradually obsolete before the lateral middle ; posterior edge crenulated ; thorax none, distinct ; head, posterior edge transversely rectilinear, angles slightly arquated backward and rounded at tip ; palpi oblong, sublinear and regu- larly rounded at tip. Cabinet of the Academy. Found in the Southern States, the color is reddish, [77] some- times slightly varied with whitish, particularly behind, and the lobate divisions of the posterior margin are sometimes whitish above, and the disk is obsoletely lineated with black. 4. I. ERRATicus. — Body oblong-ovate, gradually narrowed before, sides hardly arquated, with distant punctures, those be- hind more deeply impressed, posterior margin with ten or twelve [Vol. II. OF PHILADELPHIA. 21 impressed lines which are abbreviated by a submarginal im- pressed line, two abbreviated lines before ; head, posterior edge transversely rectilinear, angles extended backward abruptly, and subacute ; rostrum rather short ; palpi oval-orbicular. Found in the Southern States ; the color is reddish or ferru- ginous, with acute black lines. 5. I. VARIABILIS. — Body oblong-ovate, gradually attenuated before; sides hardly arquated j a few remote, deeply impressed punctures not more numerous behind; posterior margin with about twelve impressed, abbreviated lines ; a lateral, impressed, punctured, submarginal line, obsolete behind ; two deeply in- dented, abbreviated lines before; head, hind edge rectilinear, angles abruptly a little extended backwards, acute ; rostrum rather short ; palpi ovate ; color reddish or ferruginous varied with white, incisures of the feet white. Very much resembles the preceding in form ; the white of the back is more or less reticulated, and the [78] feet are white above, or only their joints. May not this be /. lineatus, if so, my name must of course be rejected. 6. 1. PUNCTULATUS. — Body oblong-ovate, gradually attenuated before, sides hardly arquated, crowded with impressed confluent punctures ; thorax destitute of punctures, but with two impressed undulated lines ; abbreviated lines of the posterior margin not deeply impressed, almost obsolete; lateral submarginal line deeply impressed, obsolete behind ; head, hind edge rectilinear, angles abruptly a little projected backward, acute; rostrum rather short; palpi oval; eyes distinct, impressed: color ferruginous, thorax white lineated or varied with ferruginous, incisures of the feet white. Considerably like the preceding. 7. I. SCAPULARIS. — Body red, with a few short whitish hairs ; thorax blackish-oval, well defined, with numerous punctures ; ter- gum, punctures sparsate, and four or five blackish, obsolete, di- lated radii on the disk ; a deeply indented submarginal line ; no abbreviated marginal lines behind ; edge rounded ; head beneath and above blackish, posterior edge rectilinear, angles abruptly projected backward, very short, acute ; eyes distinct, deeply im- pressed ; rostrum slightly canaliculate above, paler than the head ; feet blackish -red, ciliate beneath, terminal joint reclivate 1821.] 22 ACADEMY OF NATURAL SCIENCES near the tip on the anterior edge; origin [79] of the anterior ones, armed behind with a large acute spine. Rather common in forests, and frequently found attached to different animals. 8. I. FUSCOUS [puscus]. — Body fuscous, ovate, punctured ; tergum with a few black, obsolete lines, and a profoundly in- dented submarginal line, posterior marginal impressed line none ; no distinct thorax ; edge rounded ; head, posterior edge recti- liaear, angles not prominent beyond the rectilinear edge ; eyes not visible; palpi suboval, terminal joint rather longer than the preceding one. Cabinet of the Academy. A common species. Genus HYDRACHNA Miill. Latr. Rostrum advanced, conic; mandibles none; palpi projecting, terminated by a moveable appendage : body subglobular ; feet natatory. H. TRIANGULARIS. — Body white ; eyes two, sanguineous ; tergum with a black triangular spot near the eyes, posterior por- tion black, with a white dorsal line terminating in the cloaca. The specimen, from which this portion of a description was taken, I found in Unio cariosus, in which, possibly, it had ad- ventitiously effected a lodgement. [ 80 ] Genus LIMNOCHARES Latr. Rostrum hardly prominent ; palpi incurved, simple ; mandibles none ; feet natatory. L. EXTENDENS. — Body ovate, red, minutely lineated; tergum with a few indented points; beneath, origin of the feet paler red; feet, second and third pair ciliate with very fine and long hairs, posterior pair destitute of cilia. Length nearly three-twentieths of an inch. A common species, inhabiting stagnant pools, &c., in forests, and shady places. The posterior feet being destitute of ciliae, are only useful in walking ; when the animal is swimming, they are extended behind, without distinct motion. The eggs are globvilar, surrounded by a white gluten, and are deposited on almost any object indifferently, from two hundred to three hun- dred in number, arranged somewhat symmetrically in parallel, [Vol. II. OF PHILADELPHIA. 23 rectilinear, or undulated series. I have found them about the middle of May. Genus LEPTUS Latr. Feet six ; trophi forming a capitate body ; palpi conic, quadri- articulate ; an obtuse tube, subconie, advanced ; body soft. 1. L. ARANEii [arane^]. — Body oval, red, with short, dis- tant hairs; head whitish, somewhat rounded, [81] contracted, at base and acute at tip ; palpi white, a little hairy, rather sur- passing the tip of the head ; tergum with a deeper red eye on each side over the interval between the anterior and second pairs of feet, anteriorly indented, and with two lines each of four or five indented points. Length one-thirtieth of an inch. Cabinet of the Academy. Of this species, I have found a specimen adhering near the base of the palpi of an Arajiea. The head-like process, is sometimes retracted so as to be not prominent, but is not long withheld in this position. The body is somewhat contractile, not perceptibly as regard its length, but in its breadth, by an irregularly undulated motion of the edge. 2. L. HiSPiDUS. — Body suboval ; head with a distinct neck ; palpi more robust at base ; feet elongated, much longer than the body, filiform and furnished with numerous robust, incumbent, flexible set89, about twice the diameter of the leg in length. My Cabinet. I took no less than ten of these animals from a Phalangium, to which they adhered very strongly ; when feeding, they often are supported only by the rostrum and palpi, the body and feet being elevated so as to be sometimes perpendicular to the supporting surface. [82] Genus OCYPETE Leach. Feet six; mouth rostrated, porrected, with mandibles; palpi elongate-conic, with a moveable appendage at base ; body soft ; eyes two. 0. COMATA. — Body subtriaugular, very obtusely rounded behind, hirsute, and narrowed by an arquated line to the rostrum : rostrum short, narrowed and emarginated at tip ; posterior feet 1821.] 24 ACADEMY OF NATURAL SCIENCES louger than the body, and with much longer hairs than those of the body. Inhabits several species of Tipula. I his is readily distinguishable from the 0. rubra Leach, by the elongated hairs of the feet. The specimens in my possession, are so disposed that the trophi cannot be examined, I therefore refer them to this genus by analogy, drawn from habit, &c. [From Vol. 2, 1821, pp. 102—114.] Descriptions of the MYEIAPOD.ffi of the United States. Kead November 2l6t, 1820. Class MYRIAPOBA. Order 1. CHILOGNATHA. Genus JULUS. Body serpentiform, cylindrical ; antennae inserted on the ante- rior margin of the head, second joint longest, terminal one mi- nute ; eyes distinct ; feet many. 1. J. IMPRESSUS. — Brown, a series of lateral black dots, beneath yellowish-white ; ultimate segment mucronate. My Cabinet. Body cylindrical, immarginate, above brownish, beneath yel- lowish-white appearing glabrous : segments each with a lateral black spot, whitish lines and dots sometimes obsolete, a trans- verse series of longitudinal abbreviated obsolete impressed lines, and beneath the stigmata with impressed, more distinct ones, ulti- mate segment mucronate, spiracles not prominent; eyes rather large, conspicuous, black ; labrum yellowish white ; antennae brownish. A common species inhabiting under stones, and in humid sit- uations, a variety occurs with a very distinct, acute, longitudinal, dorsal line, and variegated head. 2. J. PUNCTATUS. — Body brownish, with an impressed dorsal line, impressed white dots and spots, ultimate segment unarmed. 3Iy Cabinet. [103] Vol. II OF PHILADELPHIA. 25 Body cylindrical, immarginate, above dark brown, glabrous, an obsolete, dorsal, whitish, slightly impressed, acute line ; segments each, with a white dot on either side above, snd a larger trans- versely oblong lateral one, which is more completely bisected on the posterior segments into two distinct dots, which on the ter- minal segments resemble the dorsal ones, ultimate one abruptly narrower than the preceding and truncated, anterior segments attenuated to the head, which is wider than the anterior one, an- terior segment as long as the second and third ones conjunctly ; spiracles somewhat prominent; eyes very distinctly granulated, subtriangular, black ; head dark-brown, labrum white. Inhabits the same situations, and is similar in general form to the preceding species, but is less common and rather smaller. The dots, spots and lines are for the most part slightly impres- sed. 3. J. ANNULATUS. — Body with numerous, elevated, obtuse lines; of which four are above the stigmata; ultimate segment glabrous, unarmed. Inhabits the Southern States. My Cabinet. Body cylindrical, immarginate, above brownish with a slight tint of red, immaculate, beneath yellowish white ; segments each with about fifteen elevated obtuse lines, of which four are equal dorsal, a pyriform, larger, oblique one on the stigmata, and about ten decreasing in size to the feet, anterior segment [104] as long as the three succeeding ones conjunctly and glabrous, posterior one glabrous reddish-brown, as long as the two preceding ones, united and obtusely rounded at tip ; head whitish before ; an- tennae white ; eyes transverse linear, black : vertex not distinctly impressed. A rather common species in the Southern States, inhabiting with the preceding and in decaying wood. 4. J. LACTARius. — Body fuscous with a rufous dorsal line, numerous elevated lines, of which about fifteen are above the stigmata, ultimate segment unarmed. My Cabinet. Body cylindrical, above fuscous, with a dorsal rufous vitta and an obsolete one each side ; beneath yellowish white ; segments each with numerous, elevated, longitudinal lines, of which about 1821.] 26 ACADEMY OF NATURAL SCIENCES fourteen are above the stigmata and about fourteen below, becom- ing smaller to the origin of the feet, line of the stigmata geminate , anterior segment as long as the second and third conjunctly, and glabrous on the anterior half, posterior segment not so long as the two preceding ones united, widely rounded at tip ; head glabrous ; antennae reddish-brown : eyes triangular, granulated, deep black . Not uncommon under stones, &c., and when irritated discharges a lacteous globule from the lateral portion of each segment, diffu- sing a strong and disagreeable odor. [105] 5. J. MARGINATUS. — Body cylindric glabrous, blackish, seg- ments with a rufous margin; ultimate segment unarmed. My Cabinet. Body cylindric, glabrous, polished, blackish, beneath pale red- dish ; segments margined behind with rufous, anterior segment as long as the three succeeding ones, conjunctly and entirely mar- gined with rufous, second segment slightly, and obtusely angula- ted at the lateral tip of the anterior one, ultimate segment as long as the two preceding ones united narrowed to the tip which is rounded : head with an impressed line which is obsolete on the front ; labrum pale, deeply and widely emarginated at the tip, with a submarginal, infracted series of ten or twelve punctures furnishing hairs, tip ciliated, reddish, obsoletely dentate. Length more than three inches. A very large species inhabiting decaying wood, &e.; when ir- ritated it diffuses an odor like that of muriatic acid, and is infest- ed by Gamasus Jnloides. It varies in color ; the margin of the segments and all beneath are sometimes white, the ultimate seg- ment is sometimes almost acutely angled at tip, and there is a distinct lateral series of black dots. 6. J. PUSILLUS. — Body with a lateral series of black spots, terminal segment unarmed. Inhabits the middle States. My Cabinet. [106] Body cylindrical, immarginate, above pale, obsoletely reticu- late, and varied with reddish ; a lateral series of large black spots, numerous longitudinal, parallel, impressed, acute lines be- neath the stigmata becoming gradually shorter to the origin of the feet ; beneath whitish ; head white beneath the antennae ; antennae two joints proceeding the last somewhat dilated, not attenuated [Vol. II. OF PHILADELPHIA. 27 at their bases, nor separated by a contraction ; eyes black, lon- gitudinally sublunate ; ultimate segment unarmed, longer than the penultimate one, rounded at tip and blackish. Length nearly half an inch. Resembles J. impressus in the character of lateral impressed lines, but is distinct by the unarmed terminal segment ; I found it rather common on the Eastern shore of Virginia under the bark of Pinus variabilis. Genus POLYDESMUS Latr. Body elongated, linear depressed, segments with a prominent margin; eyes obolete; feet many; antennae, second joint shorter than the third. 1. P. SERRATUS. — Segments with a double transverse series of slightly raised squamiform elevations. My Cabinet. Segments depressed above, with four minute serratures each side, first segment transversely oblong oval, somewhat angulated on each side behind, second, third and fourth segments with but three serratures [107] first rather longer than the second, and with a single obsolete serrature near the posterior angle, each segment with a double transverse series of twelve slightly elevated, squami- form divisions, anterior segment with but a single series ; head glabrous, an impressed longitudinal line on the vertex ; antennae, feet and terminal segment hairy; color, above reddish-brown, beneath yellowish white. Common in similar situations with the preceding. Julus virginiensis of Drury, is also rather common ; it appears to be synonymous with J. tridentata of authors. I have found spe- cimens double the usual size in the Southern States. It seems also to vary in having only the second joint of the feet mucro- nate, and in being destitute of the robust ventral spines between the feet. 2. P. GRANULATUS. — Segments granulated, granules subequal, arranged in four series. My Cabinet. Body with short hair, pale tinged with red beneath, and feet paler ; head dusky, with short dense hairs ; labrum whitish ; seg- ments somewhat convex, granulated, granules rounded, or longi- 1821.] 28 ACADEMY OP NATURAL SCIENCES tudinally oblong-oval, elevated, obtuse, approximate and arranged transversely in about four nearly regular series, anterior segment transversely oval, narrower than the head or second segment ; stigmata elevated. Found in Pennsylvania. [108] Genus POLLYXENUS Latr. Body membranaceous, pennicillate with setae at tip ; antennae inserted under the anterior margin of the head. P. FASCICULATUS. — Body pale brown, linear, incisures ciliated fasciculated each side ; head deeply ciliated before. Inhabits the Southern States. Segments smooth, ciliate at the incisures, and fasciculate with brown setae each side, terminal pencil cinereous ; head semior- bicular, depressed, deeply and densely ciliated on the edge with setae : eyes small, oval, prominent, placed obliquely in the middle of the lateral margin ; antennae very short, thick reddish-brown ; feet white. Length rather more than one-tenth of an inch. Beneath stones, &c., in humid situations; not very common. Order 2. SYNaJVA TEA. Genus LITHOBIUS Leach. Antennae conico-setaceous : dorsal scuta alternately much shorter and concealed. L. SPINIPES. — Joints of the feet with short spines at tip, and a single much longer one beneath the tips. [109] My Cabinet. Body chestnut brown, polished, impunctate, with short sparse hairs ', segments with reflected lateral edges, first one shortest, transverse, the second quadrate with narrowed angles, five or six posterior ones, each narrowed behind and emarginate on the hind edge, the posterior angles of those near the caudal segment more acute, caudal segment truncate conico-cylindric ; antennae pale testaceous, with dense, very short, rigid hair; terminal joint as long as the two preceding ones conjunctly; feet pale testaceous, joints spinous at tip, an elongated spine at the tip of each be- [Vol. II. OP PHILADELPHIA. 29 neatli, anterior pair shortest, posterior longest and more robust ; labium longitudinally indented, impunctate, teeth of the tip black. Length more than one inch. Very common under stones, &c. The specimen from which this description was taken has but thirty joints to the antennae. Genus CERMATIA. C. COLEOPTRATA Villiers. Is an inhabitant of the Southern States ; we observed it both in Georgia and East Florida. It is probable, that, like a vast number of the insects now common in our country, it has been introduced by our shipping from abroad. Genus SCOLOPENDRA. Antennae conico-setaceous ; dorsal scuta subequal ; eyes, four each side, hemispherical. [110] 1. S. MARGINATA. — Body obscure olivaceous green; segments margined with dark green ; head castaneous. Inhabits the Southern States. My Cabinet. Body obscure olivaceous green, beneath whitish or fulvous; segments impunctured, margined each side and behind with black-green ; first, third, and fourth shortest, five or six terminal ones more distinctly margined ; head chestnut color ; antennae green ; feet pale, tipped with bluish green, nails blackish ; pos- terior feet hardly longer than the three terminal segments of the body conjunctly; length of the joints hardly equal to double their breadih ; first joint spinous beneath and within, and armed with an acute, strong, projecting angle at the tip. Length more than two and a half inches. Rather common in Georgia and East Florida; it is also found in the West Indies, but does not occur so far north as Pennsyl- vania. 2. S. viRiDis. — Body bluish green ; base of the feet and all beneath whitish. Inhabits Georgia and East Florida. My Cabinet. Body above bluish green, immaculate ; posterior segments margined with pale yellowish ; mandibles yellowish-white ; feet whitish at base, terminal joints pale bluish-green, posterior pair pale yellow, 1821.] 30 OF PHILADELPHIA. Length abotrt two inches and a half. [Ill] I have not known this species to inhabit so far north as Penn* sylvania. Genus CRYPTOPS Leach. Anterior edge of the labium not denticulated, hardly emar- ginate; eyes obsolete; posterior pair of feet longest; basal joint unarmed. 1. C. HYALINA. — Body much depressed, white, with a double blackish internal line ; hind feet with third joint five toothed. Inhabits Georgia and East Florida. My Cabinet. Head reddish-brown, polished, impunctured, with scattered hairs, no impressed clypeal line ; antennae reddish-brown hirsute, joints sessile, cylindric, terminal ones rounded : body white, polished, two black internal lines, a few sparse hairs, impunc- tured ; feet with a few hairs ; posterior feet reddish-brown, first joint not so long as double its breadth, and with the second joint armed with numerous short, rigid setae, with an indented line above ; third joint four or five toothed within, fourth joint about two toothed. Length three-fifths of an inch. Numerous specimens of this species occurred beneath the de- caying bark of a live oak ( Q. virens) on the River St. John, East Florida. The appearance of the posterior feet approximates it to Scolopendra ; [112] but the eyes exclude it from that genus?, as the number of the feet does from Litlwhms. 2. C. SEXSPiNOSA. — First joint of the posterior feet two spined. My Cabinet. Body reddish-ferruginous, punctured ; second segment shortest, then the fourth and sixth, terminal one indented at tip, and armed beneath with a double, prominent, robust spine ; antennae with very short dense hair, joints oval, separated by a very short peduncle ; feet, two moveable short spines at the exterior tip of the fourth joint; fifth joint with one beyond the middle and one at tip ; posterior feet, the base beneath a conspicuous, elevated, compressed, acute, sub-triangular spine, and a smaller one on the inner side above, near the middle. Not uncommon in decaying wood. It varies in being impunc- [VoJ. II. OF PHILADELPHIA. 31 tured beneath. I have a fortuitous variety, of which the antennae are clavate and five jointed. 3. C. POSTiCA. — Terminal segment of the body longest; pos- terior feet very short and robust. Inhabits Georgia and East Florida. My Cabinet. Body rufous, paler beneath, punctured ; segment with two im- pressed, longitudinal lines above, and a deeply impressed one beneath ; ultimate segment longer than the two preceding ones conjunctly, with two [113] obsolete, impressed, abbreviated lines at base, and an intermediate more distinct, continued one ; posterior feet remarkably robust, hardly longer than the ultimate segment j nail very robust, as long as the two preceding joints conjunctly. A very remarkable species, distinguished at once from all others, by the very thick and short posterior pair of feet, the nails of which cross each other, and are much used by the animal in its defence. Genus GEOPHILUS. Posterior pair of feet not remarkably longer than the others ; eyes obsolete. 1. G. RUBENS. — Body attenuated before and behind ; terminal pair of feet hardly longer than the preceding pair. My Cabinet. Body broadest in the middle, impunctured, red, with short hairs, more numerous on the antennae and feet j segments with two longitudinal impressed lines, and a transverse acute one near the base of each ; ultimate segment somewhat longer than the preceding, narrowed and rounded at tip ; head beneath, with a blackish spot each side at the base of the mandibles, and another at base of the terminal joint ; labium with a profound fissure, not dentated ; antennae, terminal joint longer than the preceding ones, and of equal diameter, not attenuated ; feet subequal. Very common in decaying wood, under stones, &c. [114] 2. G. ATTENUATUS. — Body attenuated from the head; posterior feet longer than the others. Inhabits the Southern States. Body broadest before and gradually attenuated to the tail ; reddish-brown, with a few hairs ; head and base of the mandibHes 1821.] 32 ACADEMY OP NATURAL SCIENCES above punctured : antennae setaceo-filiform, with numerous short hairs ; feet paler than the body ; posterior ones longer than the others. Found under stones, &c. [From Vol. 2, part 2, 1822.] On a South American species of (Estrns wMch inhal)its the human body. Read November 26th, 1822. Many of the objects of natural history described by Linn6 are at present, entirely unknown, notwithstanding the laborious and ardent researches that have been made, by a multitude of ob- servers, since the time of the great reformer. This may be in part attributed to the great rarity of some of those objects, but it may be supposed to be more particularly due to his habitual manner of attempting to concentrate all the characters of a being, in the comprehensive significancy of a few words. This excessive con- ciseness, appears to have been intended to check or discountenance a continuation of the habit of voluminous description, so freely used by his predecessors ; but with due deference to his vast and deserved reputation, be it said, that, in the attempt to intro- duce a necessary reformation in this respect, that great naturalist passed to the opposite extreme. In common with the greater number of naturalists of the present day, I have very often felt the inconvenience of this imaginary improvement "and real detriment in zoology, and heartily wish that brevity may be sacrificed to accuracy, as I am convinced that however desirable every describer may, and, indeed, ought to be, to represent the object before him in as few words as possi- ble, he should, nevertheless, not hesitate to avail himself of as many expletives as will in all probability obviously distinguish his object [354] from others, regardless of the number of words that may be required for this purpose. It is to be regretted that some very distinguished zoologists, perceiving as they must this grand impediment to the determina- tion of species, still, by their example, perpetuate and in- crease this grievance, considering it sufficient for them to add to a very laconic description, a reference to a cabinet in which the [Vol. II. OF PHILADELPHIA. 33 specimen may be inspected, by the comparatively few persons who have the opportunity. Now, although a reference to a cabinet specimen ought to be considered as the duty of the describer of every animal, plant or mineral, whenever such reference is at. all possible, yet it never- theless seems also indispensable, that a detailed description, in- eluding many characters, should at the same time be given for the information of the distant naturalist or traveller, in order that its utility may not be limited exclusively to our compatriots. Amongst a multitude of short and insufficient descriptions, or rather indications, we find in Turton's edition of the Systema Naturae, the following notice, translated from Gmelin, of the existence of a very remarkable insect. " CEsTRUS HOMINIS. — Body entirely brown. Inhabits South America. Linne ap. Pall. nord. Beytr. p. 157. Deposits its eggs under the skin, on the bellies of the natives; the larva, if it be disturbed, penetrates deeper and produces an ulcer which fre- quently becomes fatal." This insect, for the identifying of which we have [355] mani- festly to depend almost entirely on the habitat, does not appear to have been observed by any succeeding writers since it was mentioned by its discoverer. Humboldt, however, when occu- pied with his highly interesting travels in South America, was struck with certain tumors that he sometimes observed to exist on the bodies of the natives of that country, and which he attri- buted to the concealed operations of the larva of an (Estrus ; but as he had no opportunity of verifying this conjecture by satis- factory examination, he relied upon the form and appearance of the tumors, with a recollection, probably, of the description above quoted. Clarke, the best writer on this genus of insects, observes that the liominis is probably a spurious species, and he further states that it " is, perhaps, merely an accidental deposit of QiJ. bovis, in the human body, of which there are numerous instances."* So perfectly satisfied was Fabricius of the non-existence of the hominis as a distinct species, that in his Systema Antliatorum he has taken no notice whatever of this name and description. * Rees' Cyclopaedia, article Bots. 1822.] 8 34 ACADEMY OF NATURAL SCIENCES The most eminent of living entomologists, Mr. Latreille, ob- serves* that neither of the authors who have mentioned this in- sect, saw it in its perfect state ; he therefore thinks it probable^ that the larvae to which they had reference, were those of the Musca carnaria [356] of Linnaeus, or some other analogous spe- cies ; for, he adds, all the larvse of (Estrus known, live on quad- rupeds of the order Herhivora and Rodentia. Now, although I have not seen the perfect insect, in question, yet my object in this paper is to show, by the aid I think of sufficient data, that there is an (Estrus of South America which must be added to the catalogue of the foes of our kind, fully capable of a notable agency in augmenting the afflictions of humanity, and to prove that this species is altogether distinct from hovls, to which the ingenious Clark was disposed to refer it. A few days since. Dr. Harlan presented to me for examination, a small animal preserved in alcohol, that resembled, at first view, a parasitic worm, but, on a slight inspection, it became evident that it was no other than the larva of a species of (Estrus • he informed me that he had received it from Dr. Brick, who had extracted it from his own leg, during a journey in South America. Desc. The form of this larva is clavate, the posterior [anterior. — Leg.] moiety of the whole length being dilated and somewhat de- pressed ; the segments of this portion are armed with transverse series of small, black, horny tubercles, dilated at their bases, near their tips rather suddenly diminishing to a filiform curved hook, pointing forwards with an acute termination ; these series are six in number on the back and sides, placed in pairs, and three in number on the abdomen ; near the posterior [anterior] termina- tion of the body are [357] numerous minute tubercles of the same character with the others, excepting that they conform to no regu- lar series ; the anterior [posterior. — Lec] moiety of the body is entirely glabrous, cylindrical, or rather elongate conic, of a much smaller diameter than the posterior [anterior] portion, and trun- cate at the tip ; the lips at the posterior [anterior] termination of the body are short, and the intervening fissure of but little width. Total length eleven-twentieths ; greatest width more than three- twentieths of an inch. * Nouveau Diet. d'Hist. Nat. article (Estre. [Vol. 11. OF PHILADELPHIA. 35 Cabinet of tlie Academy. Ohs. From this description we may gather the facts, that the larva in question corresponds with that of GE. bovis in being destitute of hooks or holders at the mouth, but it widely differs in general form, as the larva of hovis is oblong-oval, hardly more narrowed at one end than at the other. The appearance of the series of minute hooks which subsei've the functions of feet, in the latter species ; also are very diflFerent from that of the cor- responding armature of this larva, the superior line of each double series being narrow, and seemingly composed of but a row of hooks, whilst the inferior line is much more dilated, and the hooks far more numerous than in the superior line ; indeed, the series of hooks of the South American larva are more like those of the larvae of CE. eqiii and hsemorrJioidalis, than those of the im- perfect hovis or ovis. But independently of those considerations, the single character of the much attenuated form of the anterior [posterior] part of the body of this larva, at once and eminently distinguishes it from any [_ 358 ] other yet known in this family ; while at the same time, the above description, taken in conjunc- tion with its habitat, forbids the supposition of its belonging to any other group, and will, I think, justify the restoration to its place in the system of the Linnaean (Estrus Iwminis. To which of Latreille's recently established genera it belongs, is at present impossible to determine, though, for the present, it may, perhaps, be not unsafe to refer it to the (7M/f[?'e]6ra* of Clark. Since the above was read to the Academy, Dr. Harlan has furnished me with the following interesting extract of a letter, which he received from a gentleman from whose leg this larva was extracted : — ^'After a very sultry day's march, and being very much fa- tigued, I went to bathe in the Chama, a small stream emptying in the lagoon of Maracaibo. Not long after coming out of the water, I received a sting from some insect, in the left leg, over the upper and fore part of the tibia ; it was several days attended with a considerable degree of itching, but without any pain, and I continued on my journey some few days longer without ex- periencing much inconvenience, except during several periods of * Weidmann in a letter states to me his preference of the term 2Vy- poderma for this genus. 1822.] 36 ACADEMY OF NATURAL SCIENCES perhaps two or three minutes continuance, when an acute pain came on suddenly, and was severe whilst it continued, and then as suddenly subsided. On my arrival, and during my continu- ance at II. Kosaria de Cucuta, I walked [359] with difficulty; there was a considerable tumefaction over the tibia, which had the appearance of ordinary bile (phlegmon ;) in the centre there was a small black speck; the usual applications were used with- out any success, and the tumor became more irritated and in- flamed, and thus it remained for some days, attended at times with a most acute pain, which for a few minutes was almost in- tolerable. " In returning to Maracaibo, I had to descend the Cottatumba in an open boat, without any shelter, and being wet to the skin by the cold rains which fell every night, I suffered much, and was almost constantly tormented by the tumor, which became more painful at those particular periods than usual ; during this passage, which lasted for twelve days, I was induced to scarify it, and had recourse to the usual topical applications, but without success. At times I imagined that I felt something moving, and suspected that there was something alive beneath the skin. "After my return to Maracaibo I became scarcely able to walk, and was, in a manner, confined to my quarters. In this situation I continued two weeks longer, the tumor having began to dis- charge, and without any diminution of the painful periods. " Being now nearly worried out, it occurred to me to try a poultice of tobacco, which was used for several nights, having previously scarified the tumor; during the day I frequently dusted it with ashes of segars : as an ingredient I used rum in- stead of water [360] in making the poultice. On the fourth morning after this remedy, I felt considerable relief, and on the fifth, with a forceps, I drew out the worm which you have now in your possession, and which was then dead. '' In a few days the sore assumed a healthy look, and in ten days was perfectly healed up, although, at times, I yet experience a heavy pain in the part from whence the worm has been taken. It had travelled on the periosteum along the the tibia for at least two inches. The severe pain which I experienced from those periods, I attribute to the irritation of some of the branches of the nerves distributed to the parts by the worm in its progress. [Vol, II. OF PHILADELPHIA. 37 Respeetiag this worm there are diflferent opinions among the Spaniards and Creoles. Ouche is the name it is called by some, who say it is produced by a worm which crawls on the body, from the ground, and penetrating the skin, increases in size. Others maintain that they are produced from the sting of a winged insect which they call Zancudo* others again, call the insect Husano ; for my part, I am rather inclined to think that they are produced from the sting of a winged insect, which deposits its egg. " N. B. Should it even be proved that the form of the anterior part of this larva is owing to the violence used in extracting it, of which there is no appearance, still it will stand as distinct from other known species." [The larva above described, is now supposed to be that of Cute- rehra noxialis Groudot, for the characters of which see Annales de la Societe Entomologique de France, 2d series, 2, xli. For a de- tailed discussion of all the facts known on the subject of (Estrl in the human body, consult Keferstein, iiber (Estras hominis Verh. Zool. Botan. Vereins in Wien, 1856, 637. While travelling in Honduras, several of my companions were very much afflicted with similar larvae ; they seem to infest par- ticular portions of the body not usually exposed ; the pectoral, dorsal and lumbar regions, the thighs and upper parts of the arm. When the eggs were deposited, was entirely unknown to the patients, none of them having ever observed a fly alight on the body; but from the position of the parasite, it is most proba- ble that the eggs were laid while the patients were bathing. The eflfects of these intruders are very much exaggerated in the text ; they produce a swelling, having the appearance of an ordi- nary boil, in which, at times, is felt, for a few seconds, an acute pain when the worm moves ; the method of extraction is very simple, and but moderately painful. The tumor is held be- tween the thumb and forefinger, a lighted segar is approached to the skin as near as the patient will permit, when the worm becomes restless, and the point of his body will be seen at a very minute orifice in the skin, not before obvious ; the segar is im- mediately dropped, and with both hands the tumor is com- pressed violently ; the worm is thus forced out, sometimes with * The word Zancudo is used by the South American Spaniards to de- note several species of Culex. — S. 1822.] 38 ACADEMY OF NATURAL SCIENCES such velocity as to be projected several inches. No inflamma- tion or discharge follows, but the sac immediately closes and heals. Sometimes the worm is so small as to resist this mode of ex- traction ; a piece of tobacco leaf is then gummed over the tumor, (usually with an exudation from the skin of a plantain ;) the worm dies in a few houi-s, and is then readily removed by squeezing the part. I have nothing to add to the description of the larva in the text, as emended by me, except to say that my specimens were regularly clavate, not at all depressed ; the form mentioned above was perhaps owing to contraction, produced by the liquor in which the specimen was preserved. The figures given by Mr. Goudot are regularly oval, and not at all clavate. The name Gusano del Monte is commonly applied to the worms by the natives, while the insect is called Zancudo gusano; the word Zanciido means simply long legged, and it is difficult to understand how it could be applied to a species of Cuterehra. The natives assured me that the fly was frequently seen, that it was of a grey color, and resembled an ordinary mosquito, ex- cept in being larger. I imagine that some species of Tipula was meant. A similar superstition in the United States has con- ferred upon those harmless insects the fearful title of Gallintp- 2>ers. — Lec] [From Vol. 3, 1823.] Descriptions of Dipterous Insects of the United States. Kead Dee. 24th, 1822. The dipterous insects, from which the following descriptions are drawn out, were chiefly collected by myself, during the late expedition to the Rocky Mountains under the command of Major Long, and patronage of Mr. Calhoun, the present Secretary of War. Of these insects, many appear to be common inhabitants of the United States, throughout the immense region included by the Rocky Mountains and the Atlantic ocean, between the parallels of latitude 35° and 41° north; others are probably restricted to the Western States, and some were seen only in the vicinity of the Missouri river ; along the base of the great northern Andes, where numbers of new and highly interesting animals and plants [Vol. III. OP PHILADELPHIA. 30 were for the first time detected by the party, interesting animals of the order under consideration were also collected. The speci- mens are in my cabinet. CULEX Linn. 1. C. PUNCTIPENNIS. — Body dark rufous, covered with cinereo- ferruginous hair ; feet elongated ; wings maculated. Inhabits the United States. Orbits, bright cinereous ; eyes deep black ; antcnnse and pro- boscis deep fuscous or blackish immaculate ; thorax dark rufous, with obsolete blackish lines, and covered with cinereo-ferrugin- ous hair; wings hairy, dusky, with a hardly perceptible pale band beyond the middle, and obsolete dusky spots ; scutel gla- brous, dark rufous, with a longitudinal bluish vitta ; halteres yellow at base ; feet elongated, deep fuscous or blackish ; pectus each side above the posterior feet plumbeous. It is probable this is the species which Fabr. considers as the same with the pulicar is of Europe; it is common on the Missis- sippi, and troublesome to travellers. When the insect is at rest, the wings being incumbent, one on the other, the pale band is very distinct ; when recent, the eyes are greenish-blue. I ob- served this species in considerable numbers on the Eastern shore of Maryland. The dusky spots on the wings of this species, are occasioned by the thicker growth of hair in those parts. [Belongs to Anophdes : Wiedemann has changed the name to A. crucians. — Sacken.] 2. C. 5-FASCiATUS. — Body clothed with cinereous hair ; abdo- men annulate with blackish. Inhabits the Western States. Eyes deep black ; antennae fuscous, region of the base paler ; proboscis black ; thorax with a dilated dorsal fuscous vitta ; pectus each side varied with blackish ; halteres entirely whitish ; scutel glabrous ; wings with dusky nervures, immaculate ; feet mode- rate, fuscous ; thighs whitish ; abdomen cinereous ; tergum with five black, broad fasciae ; tail black above. [H] Length about one-fifth of an inch ; proboscis one-tenth of an inch. This is an exceedingly numerous and troublesome species We found them in great numbers on the Mississippi in May and 1823.] 40 ACADEMY OF NATURAL SCIENCES June. The hairy covering is very deciduous, and when an in- dividual is caught by hand, the back of the thorax, in conse- quence of being denuded by the touch, exhibits the dorsal vittse of a blackish color confluent at the base, with an oval black spot on each side. The abdominal annuli are sometimes fuscous or even light brown. Legs much shorter than those of the preceding species, but like them in not being annulated. [Also an Anopheles: Wiedemann has named it A. ferrugi- nosus. — Sacken.] 2. C. DAMNOSUS. — Rostrum and tarsi annulate with white. Inhabits Pennsylvania. Head above with rather long yellow-ferruginous hair ; antennae pale-brownish; rostrum blackish; with a broad white band on the middle ; thorax black, with thi-ee cinereous lines, and clothed with yellow-ferruginous short hair ; scutel dull testaceous ; pleura grayish ; feet pale, covered with blackish hairs ; joints of the tarsi, excepting the first, whitish at their bases ; tergum brown, basal margins of the segments cinereous-whitish. Length a quarter of an inch. This' is one of the most common and troublesome of our mos- quitoes. It seems to correspond in some degree with the cingu- latus Fabr., although we must infer from his description, that the posterior tarsi [12] only are annulated. Wiedemann con- siders the cingulatus as the male of his molestus, of which all the tarsi are annulated, like those of our species. I feel, however, perfect confidence in the description of Wiedemann, and there- fore must consider our species distinct, inasmuch as the thorax is not " lateribusque niveis ;" afld from the laudable accuracy of that author, I cannot suppose that he would have overlooked the annulation of the proboscis, which certainly exists in this species. [Wiedemann has changed the name to C. tseniorhynchus. — Sacken.] 4, C. triseriatus. — Anterior margin of the wings fuscous; tergum with white spots on each side. Inhabits Pennsylvania. Body brown ; stethidium livid-brown ; thorax with white hair each side ; pleura with two spots of white hair ; feet pale, covered [Vol. III. OP PHILADELPHIA. 41 with dusky hair ; thighs naked, blackish above near the tip • tergum with a triangular white spot at the base of each segment on each side ; each of these spots extends upon the venter in the form of a band, interrupted each side of the middle ; thus form- ing three spots on each series upon that part, the middle ones of which are almost connected into a longitudinal line. Length one-fifth of an inch. 5 . The white spots contrast strongly with the brown color of the abdomen. CHIRONOMUS Meig. Wied. 1. C. LOBiFERUS. — Segments of the abdomen with a lobe at their bases. [13] Inhabits the United States. Antennae yellowish-brown; thorax pale-cinereous, the three lines testaceous ; scutel and metathorax testaceous ; wings white, with a brownish obsolete point near the middle ; pectus testace- ous; feet pale yellowish; tergum somewhat glaucous, the seg- ments with their bases and obsolete longitudinal line black ; on the middle of the base of the second, third, fourth and fifth seg- ments is a small longitudinally oval, slightly elevated lobe, ex- tending nearly one-third the length of the segment. Length three-tenths of an inch. [Wiedemann has altered the name to C. lobi/er. — Sacken.] • 2. C. FESTIVUS. — Body pale, when recent light green ; pectus, three thoracic lines and scutel testaceous ; wings white. Inhabits the United States. Body pale yellowish-brown, when recent, pale-green ; head at base of the antennas testaceous ; antennae light brown ; eyes deep black ; thorax trilineate with testaceous ; scutel testaceous ; wings white, immaculate ; pectus testaceous between the two anterior pairs of feet ; feet pale, hairy ; thighs green ; tarsi dusky at the incisures; anteriors nearly naked, with hairy tarsi; abdomen, second, third, fourth and fifth segments tipped with blackish above. Length of female, seven-twentieths of an inch. Observed particularly in the State of Illinois. 3. C. MODESTUS. — Stethidium yellowish, abdomen pea-green. Inhabits Pennsylvania. [14] 1823.] 42 ACADEMY OF NATURAL SCIENCES Eyes black ; antennae, shaft brown, whitish at base ; humerus, scutel, and intervals between the dilated lines of the thorax pale ; wings immaculate, costal edge near the tip somewhat dusky ; feet greenish-white, anterior tibia and the tarsi dusky. Length one-fifth of an inch. % . 4. C. GEMINATUS. — Thorax fuscous ; pleura gray ; abdomen white, annulate with black. Inhabits Pennsylvania. Humerus gray, the color being a continuation of that of the pleura ; pectus livid ; feet white ; thighs blackish, pale at base ; tibia at base and tip, and tarsi at tip fuscous ; abdomen with three broad double bands, formed thus : second segment fuscous with the exception of the posterior margin, third segment fuscous on the basal margin, fourth segment fuscous excepting the posterior edge, fifth segment fuscous on the basal half, sixth and seventh segments entirely fuscous. Length three-twentieths of an inch. 5. C. LINEATUS. — Wings white ; stethidium yellowish testace- ous, a fuscous longitudinal line on the anterior dilated line. Inhabits Pennsylvania. Thorax pale-greenish, the dilated lines yellowish testaceous, a longitudinal narrow line very distinct and fuscous on the anterior dilated line, and green rather obsolete behind ; scutel pale ; wings immaculate ; feet whitish, incisures of the knees of the inter- mediate and posterior feet brown ; tergum greenish, posterior margins of the incisures dusky. [15] Length 9 nearly three-tenths of an inch. [Wiedemann has changed this into C. lineola. — Sacken.] C. STiGMATERUS. — Tergum pale, towards the tip glaucous. Inhabits the United States. Antennae pale yellowish-brown; thorax pale cinereous, the lines very pale testaceous, sometimes tinged with dusky ; scutel yellowish ; metathorax reddish-brown ; wings white with a fus- cous sub-central stigma ; pectus testaceous ; feet pale-yellowish ; tergum, basal segments pale reddish-brown with whitish tips, terminal segments somewhat glaucous. Length three-tenths of an inch. % . [This has been changed by Wiedemann into C. glaucurus. — Sacken.] [Vol. III. , OF PHILADELPHIA. 43 TANYPUS Meig. 1. T. ANNULATUS. — Terguiu annulate with dusky; wings clouded with dusky and with three or four blackish points. Inhabits Pennsylvania. Head and stethidium red-brown ; thorax, the anterior dilated line with a brown line along its middle ; feet white, thighs having an annulus near the tip, and tibia with one at base and two near the tip fuscous ; wings with large obsolete dusky spots or clouds, and three or four black-brown points, of which two are towards the middle of the wing, and the remainder on the costal margin near the tip; tergum, segments with a dusky an- nulus at their bases. Length about three-twentieths of an inch. $ . 2. T. TIBIALIS. — Thorax reddish-brown; tibia white [16] at base ; abdomen white, a double band on the middle and tip black. Inhabits Pennsylvania. Wings immaculate ; poisers white ; feet fuscous, basal half of the tibia white; tergum, second joint with a spot each side, two middle segments with each a band, of which the anterior one is much broader, and terminal segments deep fuscous ; pleura yel- lowish. Length % more than one-twentieth of an inch. CORETHRA Meig. C. PUNCTiPENNis. — Whitish ; wings and feet punctured with fuscous. Inhabits Pennsylvania. Hair of the antennae yellowish-white, the centres of the whorls being fuscous, the shaft of the antennae has a decidedly annulated appearance ; eyes black ; thorax with three pale yellowish-brown abbreviated broad lines, the middle one originating before and terminating at the centre of the disk, the lateral ones originating rather before the middle ; feet with numerous small brown punc- tures ; wings with many very obvious brown spots. Size of C. culiciforniis Degeer, Meig. MYCETOPHILA Meig. M. ICHNEUMONEA. — Pale yellowish-brown ; wings with a fus- cous spot; tergum dusky above. [17] Inhabits Pennsylvania. 1823.] 44 ACADEMY OP NATURAL SCIENCES Head tinged with rufous ; eyes black ; thorax a little hairy, immaculate; feet whitish; tarsi dusky; wings pellucid, nervures pale brown, a fuscous spot on the connecting nervures ; abdomen fusiform, somewhat compressed, second, third and fourth seg- ments, particularly the former, reddish-brown above. Length three-twentieths of an inch. This belongs to Meigen's first division of the genus. CAMPYLOMYZA Meig. Wied. C. SCUTELLATA. — Black, scutel testaceous ; feet yellowish ; wings hyaline, nervures at the base, pale-yellowish ; poisers yel- lowish. Inhabits Missouri. Length nearly one-twentieth of an inch. ERIOPTERA Meig. E. CALiPTERA. — Wings fuscous spotted with white : interme- diate and posterior thighs biannulate with black. Inhabits Missouri. Body pale yellowish ; thorax with two fuscous lines above, and one on each side before the wings ; wings dark brown, about thir- teen spots arranged along the margins, and numerous somewhat smaller ones on the disk, white; nervures hairy; anterior [18] thighs with a blackish line near the tip; intermediate and posterior thighs with an anuulus on the middle and another near the tip, blackish; abdomen tinged with brownish, a darker dorsal line and' longitudinal incisures. Length more than three-twentieths of an inch. [Wiedemann has altered this to U. caloptera. — Sacken.] CTENOPHORA Meig. 1. C. FULIGINOSA. — Dusky, wings spotted with white; abdo- men lineate with yellow. Inhabits Missouri. Body dark brown ; thorax lineate with yellowish before ; wings fuliginous, with about three white spots on the anterior margin, and a transverse oblique one on the disk attaining the thinner margin ; feet short, pale testaceous, tips of the thighs and of the tibia and tarsi blackish ; tergum fuscous, with two dilated yellow [Vol. III. OP PHILADELPHIA. 45 Hues ; venter yellow, obsolete central vitta and posterior margins of the segments, blackish. Length about seven-tenths of an inch. 2. C. ABDOMiNALis. — Abdomen bright fulvous, margined with black 3 wings spotted with fuscous. Inhabits Pennsylvania. Head dull yellowish ; rostrum, palpi, and antennee, dark fus- cous : front with a transverse black line at the base of the an- tennae, and another each side from the antennae to the rostrum ; occiput dusky ; thorax cinereous, a double black longitudinal line abbreviated behind, and three black spots on each [19] side, whereof two are oblong, and the intermediate one subquadrate ; collar pale, with three black spots; scutel dirty yellowish, an oblique black spot on each side of it ; pleura gray, with a longitudinal vitta from the head to the abdomen ; wings with four fuscous spots on the costal margin, and a minute one beyond the carpus ; nervures fuscous, slightly margined, the middle furcate one sub- margined with white, costal margin between the spots white, pos- terior margin from the ultimate nervure to the apex with alter- nate fuscous and white spots ; tergum bright fulvous, basal and apical segments, and a wide lateral vitta, black ; venter paler fulvous, posterior segments shaded with dusky, and with a longi- tudinal black line; feet black, a white annulus at base of the tibia ; thighs pale with a black annulus at tip. Length one and a half inches. This is one of our largest and finest species of Linnaean Tipula. LIMNOBIA Meig. 1. L. PASCiAPENNis. — Wings white, with four fuscous mar- bled bands ; feet pale, blackish at the tips of the thighs. Inhabits the United States. Body above rufo-cinereous ; eyes deep black ; antennae fuscous, first and second joints black, third and fourth, yellowish; palpi black; wings white, [20] with about four, much dilated, mar- bled, dark brown bands, of which one is terminal, and one elon- gated to the base, a small costal spot between the second and third bands ; halteres dusky, capitulum white ; feet pale rufous, thighs tipped with fuscous ; abdomen, segments with an obsolete, 1823.] 46 ACADEMY OF NATURAL SCIENCES brown, cruciate mark on each, of which the transverse line is black. Length of female, three-fifths of an inch, male rather shorter. This species occurs not unfrequently on the banks of the Mis- sissippi. The nervures of the wings correspond with those of the wing represented on tab. 6, fig. 4, of Meigen's descriptions of European Diptera. 2. L. MACROCERA. — Blackish-piceous, polished ; wing three- spotted ; antennae longer than the body. Inhabits East Florida. Rostrum, first and second joints of the antennae, and the in- ferior portion of the front, yellowish ; vertex piceous ; antennas hairy on all their length, third and fourth joints with a small vertical spine at tip ; halteres and feet yellowish-white ; thjghs and tibia at tip dusky ; wings with three large fuscous spots, of which one is near the base, the second on the middle of the cos- tal margin not attaining to the edge, and the third forms nearly a band across on the connecting nervures : abdomen less intensely colored than the thorax, the three or four middle segments pale-yellowish at base. Length three-tenths of an inch. The disposition of the wing nervures differs from [21] any of those represented by Meigen, but they are more like those of fig. 7, pi. 5, than any of the others. 3. L. TENUIPES. — Thorax livid ; humerus yellowish ; wings dusky. Inhabits Pennsylvania. Antennae long, blackish ; vertex fuscous ; thorax livid ; hu- merus reddish-yellow ', nervures arranged as in Meigen's fig. 2, pi. 6 ; pleurae and pectus reddish-yellow ; feet long and slender, blackish, pale at base ; tergum brownish-livid, segments on their posterior margins somewhat darker ; abdomen whitish. Length two-fifths of an inch. This species may be found in plenty during the autumn at Harrowgate, in humid situations, in company with T. Jlavkan^ Fabr. [This species is united with L. humeralis, below, by Wiede- mann, as one species, under the name L. humeralis. — Sacken.] [Vol. IIL OP PHILADELPHIA. 47 4. L. CINCTIPES. — Yellowish; wings varied with dusky; thighs bifasciate beyond the middle. Inhabits Missouri. Body pale-yellowish ; thorax trilineate with black, intermediate line double, terminating at the central incisure ; lateral lines in- terrupted before, and continued posteriorly to their union at the base of the tergum ; wings varied with blackish ; four distant spots on the costal margin, of which the terminal one is semi-cir- cular and the penultimate one is continued in a very irregular band towards the thinner margin ; thinner margin with about four much diluted spots, the terminal one being continued as a band across the tip ; abdomen yellow, somewhat varied with [ 22 ] black: thighs with two black annulations beyond the middle. Length about half an inch. The nervures of the wings agree with those of Meigen's fig. 5 of tab. 6, excepting that there are three nervures on the costal margin as in his figures 5, 7 and 8 of tab. 5. •5. L. HUMERALis. — Dusky, beneath pale ; wings hyaline im- maculate. Inhabits Pennsylvania. Antennae fuscous, first joint and rostrum dull-yellowish; front and vertex dull cinereous ; thorax dark livid ; humerus, two ob- solete lines, and lateral margin as far as the wings, yellowish ; pleura and pectus pale yellow; scutel and metathorax color of the thorax ; nervures dark brown, corresponding in arrangement with Meigen's fig. 2, pi. 6; feet dark brown; tergum dull-yellowish, with a black line ; venter white. Length two-fifths of an inch. 9 . 6. L. ROSTRATA. — Feet elongated ; wings spotted ; rostrum nearly three times as long as the head. Inhabits Pennsylvania and Maryland. Antennae, rostrum and vertex fuscous ; thorax cinereous, tri- lineate with fuscous, the intermediate line abbreviated behind, and the lateral ones abbreviated before ; wings with five fuscous sub-equal spots on the costal margin, the penultimate one rather largest, and a spot at each termination of a nervure at the inner [23] margin and apex, the connecting nervures also are margined with fuscous ; feet pale. Length one quarter of an inch. ? . 1823.] 48 ACADEMY OF NATURAL SCIENCES On flowers : this species resembles L. longirostris Wied. in the form of the rostrum and the arrangement of the nervures, and with that insect it seems entitled to be separated from Limnobia as a distinct genus. [Belongs to Aporosa Macq. — Sacken.] TIPULA Linn. Meig. 1. T. cunctans. — Wings with a fuscous costal margin : ter- guni with a dusky line. Inhabits Pennsylvania. Rostrum, mouth and base of the antennae pale reddish-yellow, flagellum dusky ; front and vertex cinereous ; collar pale, with a dusky line ; thorax brown, two pale distant lines on the disk, confluent behind, and another on each side passing over the wings ', winss dusky; nervures fuscous; the fuscous costal margin is in- terrupted near the stigma, by an obsolete, pale spot ; poisers dusky, stipes yellowish ; feet blackish ; thighs and tibia, paler at base ; pleura gray ; abdomen, pale brownish-yellow, with a dis- tinct dusky line on the tergum, the segments of which are also margined behind with dusky. Length four-fifths of an inch. Arrangement of the nervures like that of the preceding species- 2. T. costalis. — Wings with a fuscous costal margin ; [24] antennae annulate ; segments of the tergum with an interrupted transverse line. Inhabits Pennsylvania and Maryland. Head cinereous ; rostrum and antennae yellowish, segments of the latter, excepting the three basal ones, fuscous at base ; tho- rax yellowish brown, with a darker line ; scutel and metathorax pale ; pleura whitish ; feet dull yellowish-brown ; wings with a brown costal margin extending to the extremity of the carpus ; tergum light yellow-brown, segments with a fuscous posterior margin, and two linear spots placed in a line transversely. Length three-fifths of an inch. The arrangement of the nervures of the wings is nearly simi- lar to that of Meigen's fig. 9 of pi. 6. 3. T. macrocera. — Pale-yellowish ; antennae elongated. Inhabits Pennsylvania. Inferior longitudinal half of the rostrum, reddish-brown ; palpi [Vol. III. OF PHILADELPHIA. 49 dusky ; antennse twice the length of the head and thorax, second joint very small, third joint as long as as the fourth and fifth taken together, the remaining joints a little dusky, dilated at their bases, and somewhat excavated in their middles ; wings immac- ulate ; nervures, stigma and interstice of the first and second ner- vures, dull-yellowish ; feet pale-brownish ; abdomen somewhat darker than the thorax, with three series of black dots, one lateral, and one ventral ; pleura and pectus whitish yellow. [25] Length half an inch. The antennas by their length, the second and third joints, and the form of those of the flagellum, show an alliance with the genus Nejihrotoma, but as they have but thirteen joints, the insect must be regarded as a Tipula. 4. T. coLLARis. — Thorax blued-black, lineate with yellow; tergum yellow with blackish bands. Inhabits Pennsylvania. Head fulvous; antennae, first and second joints, rather paler than the head; palpi fuscous, pale at base; occiput black: tho- rax blued-black, the collar, two lines each side confluent before and behind, scutel and metathorax, bright yellow, the latter with two confluent blued-black spots at tip ; poisers brown, tip of the capitulum yellowish ; wings with a brown stigma, nervures brown, differing in arrangement from those of the preceding species and from those figured by Meigen : feet brown, basal portion of the thighs pale ; tergum yellow, segments black-brown on their posterior half; venter pale-yellow, segments dusky on their pos- terior half with a silvery reflection. Length a little less than half an inch. 5. T. ANNULATA. — A dark brown stigma ; abdomen pale, an- nulate with black. Inhabits Pennsylvania. Antennae fuscous, first and second joints whitish; rostrum, and lower portion of the front whitish ; vertex and occiput dusky ; palpi fuscous ; thorax yellowish-brown, [26] the indented lines paler ; metathorax light livid ; wings with a brown stigmata, nervures brown, arranged like those of Meigen's fig. 9, pi. 6 ; feet dusky-brownish ; abdomen yellowish-white, incisures and their margins black, forming annulations complete. 1823.] 3 50 ACADEMY OF NATURAL SCIENCES Length two-fifths of an inch. 6. T. TRIVITTATA. — Wings four-banded with fuscous ; tergum yellow with a dorsal and lateral fuscous vitta. Inhabits Pennsylvania. Head dusky ; front, rostrum, and base of the antennae pale 3 thorax whitish-cinereous, lineate with light brown, the lines double ; collar with a brown line, and lateral dusky spot ; scutel and metathorax with a brown line ; pleura and pectus gray ; poisers whitish, capitulum brown ; wings with fuscous margined nervures, fuscous bands and white areolae, between the first and second band is a semi-band on the thinner margin, second band enclosing a white spot on the costal margin ; feet dusky j tergum with a longitudinal fuscous line, segments with lateral fuscous triangles and a dorsal transverse abbreviated dorsal line near the middle of each. Length one inch. Nervures resembling those of the preceding species. SCIOPHILA Hofi". .S. FASCIATA. — Pale-yellowish ; thorax trilineate ; tergum fas- eiate with fuscous. [27] Lihabits Pennsylvania and Maryland. Antennae at tip, and vertex fuscous ; thorax with a double light-brown middle line attenuated and abbreviated behind, a dark chestnut dilated line on each side abbreviated before, and a small obsolete one above the origin of the wings; pleura with a dusky spot over the insertion of each foot, placed triangularly, the inferior one itself triangular ; tibise and tarsi a little dusky ; segments of the tergum fuscous on their posterior margins. Length rather more than one-fifth of an inch. KYPHUS Latr. Meig. 1. R. MARGINATUS. — Wings spotted ; thorax trilineate with rufous. . Inhabits Pennsylvania. Head dull reddish-brown ; vertex blackish ; thorax cinereous, with three rufous lines, of which the middle one is abbreviated behind, and the lateral ones are abbreviated before ; wings with [Vol. III. OP PHILADELPHIA. 51 three brownish spots on the costal margin ; feet whitish, joints a little dusky ; tergum blackish at tip, pale at base. Length less than one-fifth of an inch. The number, form and position of the wing spots, are similar to those of Sciara pimctata, Fabr., it difiFers, however, from that insect, in addition to other peculiarities, by the color of the tho- racic lineations. 2. R. ALTERNATUS. — Costal margin of the w ing beyond [28] the middle with three fuscous spots alternating with white ones- Inhabits Pennsylvania. Body blackish-fuscous ; thorax with three black lines, of which the intermediate one is double ; feet short ; wings hyaline, con- necting nervures slightly margined with fuscous spots on the cos- tal margin, placed one on the middle of the length, then a whit« one which is very conspicuous on the edge of the wing, then a brown one, then another white one divided into two compartments by a nervure, then a third brown one terminated at the tip of the wing by a third white spot. 5 Length to the tip of the wings a quarter of an inch. The habit difiers from that of the other species I have seen. SIMULIUM Latr. S. VENUSTUM. — Black J thorax, two perlaeeous spots before, and a larger one behind ; poisers black, capitulum bright yellow, dilated. Inhabits Shippingsport. Body black ; wings whitish, with yellow, and iridescent reflex- ions. Male, eyes very large, separated only by a simple line, dull reddish yellow, inferior half black ; thorax velvet-black, a bright oblique, perlaeeous, dilated line each side before, and a large per- laeeous [29] spot or band behind ; sides beneath varied with per- laeeous ; "feet, tibia above, and first joint of the four posterior tarsi, white j abdomen with an oblique perlaeeous line at base, and two approximate, lateral, perlaeeous ones near the tip. Female. — Eyes moderate ; thorax plumbeous-black, immacu- late; scutel black : abdomen whitish beneath. This very pretty species, perched in considerable numbers on our boat at Shippingsport, Falls of the Ohio. It ran with con- 1823.] 52 . ACADEMY OF NATURAL SCIENCES siderable rapidity, constantly advancing its long anterior feet. Its bite is pungent. BERIS Latr. Meig. B. FUSCiTARSis. — Thorax piceous-black, polished; tergnm reddish-brown, inclining to yellowish on the disk, and with brown incisures. Inhabits Pennsylrania. Wing hyaline with a pale-brown stigma and nervures, origin yellowish-white; thorax with the posterior angles piceous; feet, anterior and intermediate pairs yellowish-white ; tarsi, excepting the base of the first joint, fuscous, posterior pair reddish-brown, first joint of the tarsi yellowish-white. Length one-fifth of an inch. The scutel of my specimen is wanting ; I cannot, therefore, ascertain its number of spines. NEMOLETUS Geoff. Latr. Meig. N. PALLIPES. — Greenish-black, thorax tinged with green ; ner- vures whitish. [30] Inhabits Pennsylvania. Rostelliform process blued-black, polished ; antennse brown, situate at the base of the rostelliform process ; front with a tri- angular white spot above the antennae ; thorax punctured, a tes- taceous line before the wings, and another each side on the basal edge ; poisers and scale pure yellow-white ; costal ncrvurea whitish ; feet yellowish, base of the thighs and middle of the pos- terior edges of the segments of the venter rufous. Length three-twentieths of an inch. % . XYLOPHAGUS Meig. X. TRIANGULARIS. — Black, sub-glabrous ; thorax plumbeous with a black line ; feet testaceous. Inhabits Missouri. Body black ; head pale plumbeous ; antennae and palpi black ; proboscis pale rufous ; trunk black polished ; thorax, disk pale plumbeous, with a longitudinal polished black line, gradually and slightly dilating behind ; nervures fuscous ; halteres white • feet testaceous, tips of the tarsi and of the posterior thighs and [Vol. III. OP PHILADELPHIA. 53 tibia dusky ; tergum polished, with a large opaque triangle at the base of each segment excepting the first. Length two-fifths of an inch. The nervures of the wings are arranged in a similar manner with those of X ater Fab. Meig. [31 ] PANGONIA Latr. P. iNCisuRALis. [Ante vol. 1, p. 75.] TABANUS L. Latr. T. MOLESTUS. — Thorax cinereous, lineate with fuscous ; scutel cinereous ; abdomen black-brown, a dilated dorsal vitta. Inhabits Missouri. A frontal, blackish-brown, glabrous, oblong callus, with a di- lated obscurely rufous glabrous line above, terminating in a smaller dilatation ; antennae black ; proboscis black ; palpi testa- ceous ; thorax [32] cinereous, with four reddish-brown lines; wings dusky, nervures dark-brown, blackish towards the tip, a black carpal line, and a slight anastomosis ; scutel cinereous j pectus pubescent, cinereous ; feet black, tibia obscure ferrugi- nous ; tergum black, a dilated, cinereous, dorsal vitta, consisting of dilated triangular spots on the third, fourth, fifth and sixth segments, the larger ones before ; incisures cinereous. Length less than four-fifths of an inch. This is one of the species which are called jirairie flies ; it is numerous in the prairies of the State of Missouri, and is very troublesome to the cattle. I have seen cattle in the forests which margin the prairies, when attacked by these insects, start suddenly and plunge into the thickets, that the branches may divest them of their enemies. Travellers are much incommoded by them; many cover their horses with canvas, &c., to shield them from their attacks, or rest in some shaded or secluded situ- ation, during that part of the day when they are most abundant. 2. T. ANNULATUS. — Thorax cinereous-plumbeous ; wings im- maculate ; tergum blackish ; incisures cinereous ; tibia white. Inhabits Missouri. Body somewhat pubescent; head beneath cinereous downy; antennae rufous ; palpi white ; proboscis black at tip ; thorax ci- nereo-plumbeouS; testaceous in the middle, and clothed with 1823.] 54 ACADEMY OF NATURAL SCIENCES short prostrate hairs ; pectus color of the thorax, downy ; feet dusky ; tibia white with the exception of the [ 33 ] tips ; wings slightly dusky, immaculate, nervures brownish, immarginate; ab- domen blackish-brown, incisures cinereous. Length of the body more than two-fifths of an inch. Smaller than T. lineola. 3. T. STYGius. — Violet-black; thorax pale chestnut. Inhabits Arkansa. Hypostoma and front dirty yellowish ; antennae and palpi black, callous of the front quadrate, chestnut, with a simple slightly dilated line above ; thorax with five cinereous lines ; scu- tel pale chestnut ; wings ferruginous, with three fuscous spots^ abdomen immaculate ; tibia dull chestnut at base. Length nearly nine-tenths of an inch. CHRYSOPS Meig. Latr. C. QTJADRiviTTATUS. — Cinereous ; tergum with four series of brown lines. Inhabits near the Rocky Mountains. Length to the tip of the abdomen nearly two-fifths of an inch. Body cinereous ; head with three black frontal spots placed in a transverse series, the intermediate one smallest, and a larger black spot above the antennae; antennae dark reddish-brown, ter- minal joint black at tip ; thorax blackish, with five narrow, cine- reous lines; wings with a large costal spot, anastomosis and ob- solete spots fuscous; feet yellowish-brown, [34] tips of the tibia and of the tarsal joints black; tergum with four series of fus- cous abbreviated lines, the two dorsal series approximate, the lateral ones distant, between the dorsal series tinged with yellow- ish-brown. LEPTIS Fab. Meig. 1. L. ORNATA. [Ante vol. 1, p. 26.] Length % nine-twentieths of an inch. This species resembles L. tlioracica Fabr., but the wing-s are not obscure as those of that species ; the thighs as well as the tibia are pale, the bands of the tergum are much broader, the thoracic hair difi"erently colored, and the hypostoma and front are covered with silvery hair. [Vol. III. OP PHILADELPHIA. 55 2. L. PUNCTiPENNis. — Blackish ; wings spotted ; abdomen pale at base. [35] Inhabits Pennsylvania. Hypostoma dark cinereous, with a fringe of long hair each side; antennjo, palpi and rostrum black ; vertex blackish-fuscous; atethidium black ; thorax varied with cinereous lines ; pleura, pectus and coxae dark cinereous ; feet pale brownish, thighs more dusky ; poisers yellowish white ; wings hyaline, tip margin, con- necting nervures, margin of the nervures near the thinner edge of the wing, costal margin ending in a carpal spot, fuscous ; ter- gum, four basal segments pale-yellowish, with a dusky basal margin and triangular spot, remaining segments black. Length % more than one-fifth of an inch. 3. L. QUADRATA. — Pale yellowish; thorax lineated ; abdomen fasciated ; wings with a large spot. Inhabits the United States. Body pale-yellowish ; head very slightly tinged with plumbe- ous, excepting the antennae and mouth ; thorax with three dilated longitudinal brown lines, of which the lateral ones are interrupted ; scutel immaculate ; wings whitish, with a brown subquadrate spot, extending from the margin to the centre of the wing, and from near the anterior inner angle of the spot an oblique brown line extends to the thinner margin, nervures brown, white at base ; pectus and feet immaculate ; tergum with a black band at the base of each segment ; halteres with a dusky capitulum. Length to the tip of the wings more than seven-twentieths of an inch. [36] This insect is most closely allied to the Atherix oculata Fab. It occurs in Pennsylvania as well as in the State of Missouri. 4. L. BASILARIS. — Blackish-fuscous ; wings hyaline, base or neck only fuscous. Inhabits Pennsylvania. Hypostoma in a particular light cinereous; antennae dark tes- taceous ; thorax and scutel with scattering golden-yellow hairs ; pectus and pleura brown ; feet white, thighs at base and tips of the tarsi brown ; tergum on the posterior margins of the basal segments with yellow hair; venter immaculate, paler at base ; 5 head cinereous, vertex and occiput spotted with black. 1823.] 56 ACADEMY OP NATURAL SCIENCES Length 9 one-fifth of an inch. % rather less. The nervures of the wings are disposed as in Meigen's second division. 5. L. RUFITHORAX. — Yellowish-testaccous ; wings dusky ; ter- gum with a series of black spots. Inhabits Pennsylvania. Antennae dull testaceous, terminal joint black ; labia fuscous ; thorax in a particular light with two dusky obsolete lines ; poisers fuscous ; wings fuliginous, particularly on the costal edge, the antepenultimate nervure uniting with the preceding one before it attains to the inner edge of the wing ; tibia and tarsi dusky, hind feet elongated, tibia and tip of the thighs above blackish, the tarsi paler ; tergum [37] with a longitudinal fusiform black line on each segment, those on the two basal segments rounded and central, posterior segments blackish on their basal margins. Length two-fifths of an inch. Belongs to Meigen's first division. 6. L. FUMiPENNis. — ^Wings dusky; tergum brown, annulate with pale testaceous. Inhabits Pennsylvania. Hypostoma cinereous ; globular prominence, proboscis and an- tennae yellowish ; thorax fuscous, posterior edge dull testaceous ; scutel pale testaceous, fuscous at base ; wings, inner and terminal margins hyaline; poisers brown; scapus whitish; feet white; pleura and pectus yellowish-testaceous ; tergum fuscous, segments yellowish testaceous on their posterior margins; venter yel- lowish. Length rather more than one-fifth of an inch. Belongs to Meigen's second tribe. 7. L. FASCiATA. [Ante, vol. 1, p. 28.] 8. L. VERTEBATA. [Ante, vol. 1, p. 27.] [38] 9. L. ALBicoRNis. [Ante, vol. 1, p. 27.] [39] 10. L. PLUMBEA. — Blackish-plumbeous ; wings clouded ; poisers pale-yellow. Inhabits Pennsylvania. Thorax brown, with five obsolete cinereous lines ; wings with a fuscous costal margin, and four dusky arquated bands which do not attain the inner margin^ the terminal one is obsolete and [Vol. III. OP PHILADELPHIA. 57 the basal one very short and also obsolete ; feet reddish-brown, tibia pale. Length a quarter of an inch nearly. Nervures of the wings as in alhicornis. f^ ^ THEEEVA Meig. 1. T. tergis[sa]. — Wings spotted ; tergum silvery pruinose. Inhabits East Florida. Body blackish ; head blackish-brown, with white hair beneath ; antennae, basal joint cinereous with black hair; palpi pale; pro- boscis dusky; thorax [40] blackish-brown; wings slightly tinged with brownish, and with several brown spots, and brown stigma ; feet pale, dusky at the joints ; tergum dull testaceous, darker at base, and with a bright silvery reflection in a certain position, posterior margins of the segments white. Length more than seven-twentieths of an inch. The reflected color of the tergum is very similar to that of Musca anilis Linn. It seems to be closely allied to T. joictipenin's Wied., but is larger, destitute of bands on the wings, and the color of the antennae, feet, &c. is difi"erent. [Changed to T. comisra by Wiedemann. — Sacken.] 2. T. NIGRA. — Black; incisures of the tergum and lateral spot on the fifth segment gray. Inhabits Pennsylvania. Head glabrous, polished ; hypostoma and all beneath, with gray minute hair; antennse with minute gray hair, and longer sparse black hair on the basal joint; occiput velvet black; wings pel- lucid, stigmata and nervures brown, costal edge beyond the stig- mata pale, each of the two ultimate pairs of nervures uniting before they attain the edge of the wing ; poisers brown ; seapus pale; pleura, pectus and coxae somewhat glaucous; feet blackish, tibia and tarsi excepting at tip pale, anterior tibia at tip and tarsi blackish ; tergum polished, posterior edges of the third or fourth basal segments gray, spot each side of the fifth segment oblong- oval oblique. Length three-tenths of an inch. [41 ] 1823.] 58 ACADEMY OF NATURAL SCIENCES STYGIA Meig. 8. ELONGATA. — Blackish, polislied; abdomen elongated, in- cisures yellowish. Inhabits Pennsylvania. Antennae yellowish-wbite, the third joint dark fuscous, not longer than the preceding joint, but terminated by an elongated style, the second joint is somewhat more robust than the first, which last is not remarkably dilated at tip, neither is it percep- tibly obliquely truncated ; occiput plumbeous ; thorax piceous- black ; humerus with a dull rufous spot, which is continued by a curved line to the origin of the wings ; pleura with a silvery line ; wings hyaline, nervures brown ; poisers yellowish-white ; feet including the coxae white, tarsi dusky ; abdomen elongated, depressed ; tergum blackish-brown, darker towards the tip, first segment yellowish at base and tip, second segment yellow- ish on the posterior margin, the two succeeding segments with a spot on each side at tip, terminal segments immaculate ; venter with more of the yellowish color than the black. Length rather more than three-tenths of an inch. The third nervure of the costal margin is much less distant from the second, than the corresponding nervures of >S^. sahse,a j^Ieig., and the first basal cellule is much less elongated, and the superior branch of the apical fork is much less arquated than in that insect. [Wiedemann removes this species to Lomatia, adding at the same time that it probably belongs to some other genus. — Sacken.] [42 ] ANTHKAX Latr. 1. A. MORioiDES. — Black, with numerous ferruginous hairs ; wings deep black with white at tip. Inhabits the United States. Body black, covered with short prostrate ferruginous hair on the sides of the stethidium; eyes chestnut-brown, widely emar- ginate behind ; wings deep black, opaque, posterior margin from near the tip to the inner angle hyaline white, black portion occu- pying nearly two-thirds of the wing, and deeply dentate at tip, an obsolete hyaline spot near the base, about three in the middle [Vol. III. OP PHILADELPHIA. 69 placed transversely, and one near the tip of the opaque portion ; poisers pale ; capitulum black beneath, and near the tip above ; feet pale, tarsi and anterior thighs dusky : tergum with silvery hairs each side at base, and each side near the tip. Length three-tenths of an inch. Very closely allied to A. morio Fab. I observed this species in considerable numbers near Merrimac river, Missouri. The terminal joint of the antennaj is rather short, by which character it may be distinguished from ^4. fulvoTiirta Wied. It is referable to the fifth tribe of the genus Anthrax, agreeably to Wiedmann's divisions. 2. A. LATERALIS. — Black ; wings hyaline ; sides with fulvous hair ; tergum banded. Inhabits Pennsylvania and Maryland. [43] Hypostoma and occipital orbits with white hair : stethidium with fulvous hair, particularly on the sides of the thorax, on the pleura and collar ; wings as far as the basal transverse nervure fuscous, costal nervures fuscous, the included areola yellowish- brown , feet, the hair with a whitish reflexion ; tergum with a band of prostrate yellowish hair at the base of each segment, and with long fulvous hair each side as far as the middle of the length. Length nearly one-fourth of an inch. It belongs to Wiedemann's fifth tribe. 3. A. SCRIPTA. — Wings varied with black and hyaline ; tergum with four series of silvery points. Inhabits Pennsylvania. Head reddish-brown, obscure covered by yellow ferruginous hair, intermixed with longer black hairs, a black band on the hypostoma, a black spot on each frontal orbit, and vertex black ; thorax dusky, or blackish, with three black vittas, sides before the wings dull cinereous, bounded beneath by another black line, beneath the posterior angles is a fascicle of gray hairs, above which are a few ferruginous hairs ; scutel reddish-brown, with short black hair, and a small white spot at the subangulated tip ; pleura and pectus reddish-brown; feet reddish-brown, tarsi blackish ; wings, costal areola with a small hyaline spot, which is the termination of a band extending in a slightly arquated di- 1823.] 60 ACADEMY OP NATURAL SCIENCES rection to the inner angle of the wing, and interrupted by the nervures into five compartments; the three larger [44] cellules of the hinder margin, with the exception of the margins of the nervures, hyaline ; a hyaline rounded spot occupying the exterior half of the central cellule, with a smaller spot on each side of it ; sometimes obsolete or double ; above this central cellule, and near the costal nervures, are two double distant small hyaline spots ; tip of the wing hyaline, the two nervures margined with blackish, the margin of the superior one is generally interrupted in the middle ; tergum reddish-brown, covered with black hair, first segment with cinereous hair each side of the scutel ; second and third segments with each four small white spots on the pos- terior edge, the lateral ones on the former linear; fourth with but two, the lateral being obsolete ; fifth with a transverse line each side, sometimes crossed by a longitudinal line extending on the posterior segments, and exhibiting a cruciform mark, these marks and dots have a silvery brilliancy. Length seven-tenths of an inch. This species seems to come nearest to Meigen's second tribe, but it difiiers by having an additional cellule under the large central cellule of the wing. I labelled it in my cabinet with the Fabrician name of capucina, but I cannot identify it with the somewhat detailed description which Meigen quotes from Fabri. cius, nor yet with Pallas's description of the caloptera, that both Meigen and Wiedemann quote, and regard as synonymous with the capiicina, which they believe to be a native of Europe. [45] That our insect is totally different from the caloptera no one will for a moment doubt, for the latter is no larger than the morio, whereas our insect is nearly equal to the cerberus in size. In deference therefore to the opinion of the authorities above referred, I describe this species as distinct, though it seems pro- bable that Fabricius had this species in view when he referred to North America as the native country of the capucina. [This is A. Simson Fabr. — Sacken.] 4. A. ANALis. — Black ; wings hyaline at tip ; tail silvery. Inhabits Georgia. Body deep black; wings brown- black opaque, posterior third hyaline : anterior and intermediate tibia piceous on the upper [Vol. III. OF PHILADELPHIA. 61 edge ; tergum brilliant silvery at tip, and with a white fascicle each side at base. Length seven-twentieths of an inch. I am indebted to Mr. August Gr. Oemler, of Savannah, for this tine species. It belongs to Wiedemann's fifth division. ^ A. ALTERNATA. — Body villous, above black, beneath and sides cinereous ; tergum fasciate with cinereous. Inhabits the United States. Head black ; eyes chestnut ; front, beneath the antennas bright cinereous ; proboscis concealed in a groove to the tip j palpi dis- tinct, exterior ; thorax cinereous, tinged with fulvous each side, and at the scutellar suture j wings dusky, pellucid, nervures [46] blackish-brown ; base to the first transverse nervures brown opa- que ', pectus cinereous; feet blackish ; scutel edged with cinereous^ abdomen each side with dense long hair, which is cinereous on the first and second segments, but on the remaining segments alternating with black ; tergum with six or seven cinereous lineolar bands ; venter cinereous ; segments, particularly the third, black at base. Length of body more than eleven-twentieths of an inch. Found in Pennsylvania, and also in Missouri. It belongs to Wiedemann's fifth tribe. 6. A. IRRORATUS.— Black ; wings hyaline, with numerous black punctures. Inhabits the Rocky Mountains. Body deep black, hairy; eyes reddish-brown, tinged with golden ; wings hyaline, with numerous irregular, unequal, dark fuscous spots, of which those near the costal margin are larger than those near the posterior margin and tip, the spots along the costal margin are quadrate and alternate somewhat regularly with their hyaline intervals. Length one-fourth of an inch. The nervures of the wings are nearly similar to those of the wing, fig, 22, pi. 17 of Meigen's Diptera Europea. — (Europais- ehen zweifltigeligen.) [This is A. oedipus Fabr.; A. irrarata Macq., is a difierent in- sect.— Sacken.] 1823.] 62 ACADEMY OF NATURAL SCIENCES 7. A. CALiPTERA. — Fundamental color brown; wings with three-brown bands, and a silvery spot on the costal base. Inhabits Arkansa. [47] Thorax black-brown, with very short yellowish hair, and longer hair on the anterior edge, a pale fundamental spot on the poste- rior angle ; feet pale reddish-brown ; poisers yellowish ; scutel reddish-brown ; wings brown at base, then a hyaline arquated equal band divided by nervures into five compartments, then a brown band bifid on each margin, and rather narrower in the middle, then an irregular hyaline band very narrow towards the costal margin, abruptly produced in the middle to the tip of the central cellule, then an irregular brown band including a hyaline triangular spot on the inner margin of the wing, and another at the costal margin which almost separates a portion of the band into a distinct triangular spot, lastly an irregular hyaline spot at tip, costal margin, excepting where it is crossed by the first hya- line band, brown; tergum, fundamental color yellowish-brown, with very short black hair, first segment black, second with white hair on the basal half, and a large black spot on the middle, third with a black spot on the middle, and a white hairy spot on the posterior angle, fourth with a black spot. Length nearly seven-twentieths of an inch. Belongs to Wiedemann's third tribe. ASILUS Lin. Meig. 1. A. VERTEBRATUS. — Tergum pale cinereous; segments blackish at base; tibia testaceous. [48] Inhabits Missouri. Head yellow ; proboscis and antennae black ; thorax yellowish- cinereous, the dusky line divided by a cinereous one ; wings red- dish-brown ; feet black, with cinereous hair, tibia and tarsi above testaceous ; tergum whitish-cinereous, with a large transverse blackish subtriangular spot at the base of each segment, terminal anal segments black ; venter immaculate. Length to the tip of the wings one inch and two-twentieths. This species belongs to the second tribe in Wiedemann's di- vision of this genus. [This is probably a Promachus Loew. — Saoken.] [Vol. III. OF PniLADELPHIA. 63 2. A. SERICEUS. — Sericeous, somewliat golden ; thorax with a dilated brown vitta ; colors of the tergum changeable. Inhabits Pennsylvania. Antennae dull yellowish ; thorax, vitta attaining the scutel, and in a particular light changing to bright yellow ; wings ferru- ginous, areolae of the thinner margin, and of the tip dusky ; feet light chestnut, somewhat sericeous ; tergum dark-brown, with bright yellow posterior margins to the segments when viewed from behind or above, bright yellow or golden, with brown pos- terior margins to the segments when viewed from before ; venter blackish-brown, in a particular light ferruginous. Length rather more than one and one-tenth inches. This beautiful species is referable to Meigen's first tribe. [49] OMMATUS Wied. 0. TIBIALIS. — Black-brown ; abdomen black ; tibia white. Inhabits Pennsylvania. Front and hypostoma golden-yellowish ; vibrissas gray, near the antennae black ; occiput silvery, nearly glabrous ; thorax dark- brown, approaching black, with an obsolete narrow brown line on the middle ; scutel, metathorax, pleurae, pectus, and coxse silvery ; wings pellucid, with black nervures ; thighs dark chestnut ; tibia white, intermediate and posterior ones near the tip, and tarsi brown . Length eleven-twentieths of an inch. DIOCTRIA Meig. 1. D. 8-PUNCTATA. — Subglabrous, black; abdomen with four white spots on each side. Inhabits the United States. Body Jjlack, nearly glabrous, polished ; front yellowish ; thorax with three yellow lines, of which the exterior ones are dilated before, and include a dusky spot ; feet testaceous, tibia and tarsal joints tipped with blackish ; tergum punctured, and with a white spot at the lateral tip of the second, third, fourth and fifth segments. Length three-tenths of an inch. This species is an inhabitant both of the western and eastern States. The first joint of the antennae is [50] considerably longer than the second, though not double its length, and the terminal joint is elongated, subcylindrico-compressed, obtuse at tip, with a 1823.] 64 ACADEMY OP NATURAL SCIENCES short spine on the superior surface rather beyond the middle, and a small oblong-ovate denuded space on the inner surface. The wing nervures are arranged as in Dioctria and Dasypogon. Genus DASYPOGON Meig. 1. D. 6-PASCiATUS. — Cinereous; abdomen black, with a white band on each segment. Inhabits Missouri. Body black, densely covered with short cinereous hair ; head with longer silvery hair ; antennae black ; nervures fuscous ; ter- gum black, polished, each segment with a white band at tip, a little dilated in the middle, and occupying about one-third of its proper segment ; thighs and tibia testaceous at base ; halteres pale. Length seven twentieths of an inch. [The genus Dasypogen formed of the most heterogeneous ele- ments, has been subdivided by Prof, Loew, into seventeen groups or subgenera, comprising the European species only. The Amer- ican species for the most part belong to new groups, as yet unde- fined. Those of Say's species which I know to belong to one of Loew's groups, I refer to them, leaving the others in the genus Dasypogon in Meigen's acceptation. — Sacken.] 2. D. ABDOMiNALis. — Yellow ; thorax cinereous ; wings dusky. Inhabits Pennsylvania, Body cinereous ; head with an impressed line between the an- tennae ; antennje and rostrum black ; thorax with an abbreviated, brown line before and a lateral interrupted one ; wings dark brown immaculate ; abdomen bright-yellow, very slightly tinged with ru- fous, immaculate; feet pale rufous, tibia [51] dusky at tip, tip of the posterior ones dilated, and first joint of the posterior tarsi also dilated and as long as the three following segments united. Length less than three-tenths of an inch. The head is very wide, the eyes being proportionally very large, the vertex deeply concave, and the stemmata placed on a common elevation. [This is a Discocephala Macq. Synonymous with D. rufiven- tris Macq. — Sacken.] 3. D. TRIPASCIATUS.— Cinereous; tergum black, trifasciate with whitish. Inhabits Pennsylvania and Maryland. [Vol. in. OF PHILADELPHIA. 65 Antennas black, first joint 'of the style longer than the second ; wings dusky, hyaline, nervures as in Meigen's fig. 10, pi. 20, ex- cepting that the central cellule is rather more elongated ; tergum velvet-black, a cinereous band at base, a linear one near the mid- dle, and a dilated silvery one on the middle, tip of the tergum cinereous; venter somewhat livid, immaculate. Length % two-fifths of an inch ; J half an inch. Found sometimes in sandy districts. The ground-color of the body is black, but this color is concealed by a pruinose covering. [This and the next species belong to Stichopogon Loew. — Sacken.] 4. D. ARGENTEUS. — Cinereous, immaculate ; poisers paler yel- lowish. Inhabits Pennsylvania and Maryland. Antennae black, second joint as long, or slightly longer than the first ; first joint of the style longer than the second, which is aci- eular and minute; mystax and hair of the genae, pure white; vibrissae [ 52 ] none ; wings hyaline, nervures light brown, ar- ranged as in Meigen's fig. 11, pi. 20. Length from three-tenths to seven twentieths of an inch. Like the preceding insect, the ground color is black, but this color is concealed by a universal pruinose covering, which has almost a silvery brightness when the animal is living and under the influence of the sun's rays. 5. D. POLiTUS. — Tergum blackish-blue; posterior half of the wings fuscous. Inhabits Pennsylvania and Maryland. Hypostoma and front golden-brown, mystax and vibrissae yel- lowish-brown ; vertex brown ; genee pure white ; antennae black, first joint of the style longer than the second, which is acicular and minute ; thorax golden-brown, a double black line abbreviated be- hind, and a lateral broad dusky line approaching behind near to the scutel ; feet rufous, thighs black ; wings, basal half hyaline, a hyaline spot on the carpus, and a smaller obsolete one near the apex; nervures arranged nearly as in Meigen's fig. 11, pi. 20; tergum fine blackish-blue, the segments with lateral marginal cine- reous triangles. Length nine-twentieths of an inch. 1823.] 5 66 ACADEMY OF NATURAL SCIENCES « 6. D. CRUCIATUS. — Thorax margined and spotted with yellow, abdomen black, annulate with yellow. Inhabits Arkansa. Hypostoma yellow ; stethidium black ; thorax broadly margined with yellow, a humeral triangular [53] spot and a spot each side of the middle connected by a line with the margin, yellow ; wings ferruginous, nervures like those of the preceding species ; feet fer- ruginous; pleura spotted with yellow; abdomen black, segments with a broad yellow posterior margin. Length nine-tenths of an inch. A large and fine species, very readily distinguished from others. Genus LAPHRIA Fab. Latr. 1. L. FULViCAUDA. [Ante, 1, 12.] 2. L. GLABRATA. — Black, polished; posterior edges of the seg- ments of the tergum white. [54] Inhabits the United States. Body with very short prostrate, indistinct hair, punctured; hypostoma silvery ; tubercle of the vertex brown ; occiput plum- beous ; collar and line upon the thorax each side before the wings cinereous ; pleura and pectus with a cinereous reflexion ; wings immaculate, nervures brown, nearly resembling in their arrange- ment Meigen's fig. 20, pi. 20 ; poisers whitish ; feet reddish-brown, the middle of the thighs, tips of the tibia and tarsi darker, pos- terior feet beneath densely hairy; the basal and terminal segments destitute of the white edge. Length one-fourth of an inch. Var. a. Feet pale. I have a specimen in which the external branch of the termi- minal furcate nervure is continued a short distance beyond its connexion, as in Meigen's fig. 23. The antennae of this species are like those of Dioctria ^-punctata, excepting that they are acute at tip, and the arrangement of the nervures, decides the ge- neric affinity of this insect. [Belongs to Atomosia Macq. — Sacken.] [Vol. III. OF THILADELPHIA. 67 [Continuation, from Vol. 3, pp. 73 — 104.] 3. Laphria macrocera. — First joint of the antennae elonga- ted ; body black. Inhabits Pennsylvania. Body somewhat polished, with short, prostrate, grayish hair, punctured ; antennae, first joint more than four times as long as the second ; wings a little dusky, nervures nearly as in the prece- ding species: poisers pale-yellowish; feet black, tibia and base of the tarsi pale testaceous ; tcrgum on each side and at tip margined with testaceous. Length one-quarter of an inch. This insect closely resembles the preceding species, [74] but the elongated first joint of the antennae, the want of white poste- rior edges to the abdominal segments, together with the color of the lateral margin and tip of the abdomen, prove it distinct. I had formerly placed both this insect and the preceding under the genus Dioctria, but the disposition of their wing nervm-es is pre- cisely as in L. ephippium. 4. L. SERiCEA. [Ante 1, 12.] 5. L. TERGissA. — Thorax and three middle segments of the tergum with yellowish hair. ^ [75] Inhabits Pennsylvania. Head black, vibrissas and long hair of the cheek pale yellowish ; thorax dark blue, slightly tinged by cupreous, and covered by pale yellowish hair, which, on the anterior part, and on the lat- eral edge is tinged with ferruginous ; pleura blackish-piceous, with two fascicles of ferruginous hair; wing nervures brown, margined ; scutel blackish, ciliated with dusky hair ; feet blued-black, two anterior pairs of tibia with yellowish hair, posterior thighs cla- vate, anterior pair of coxae concealed by yellowish hair ; tergum blackish, the three intermediate segments with dense pale yel- lowish hair, which is interrupted in the middle, and does not oc- cupy the basal edge. Length one inch and one-tenth. This is a large robust species, and the nervures of its wings are arranged like those of L. ephippium Fab. 1828.] 68 ACADEMY OF NATURAL SCIENCES LEPTOGASTER Meig. L. ANNULATUS. — Feet whitish, annulate with rufous. Inhabits Pennsylvania. Antennae and trophi whitish ; thorax pale cinereous, with three dilated pale brown lines ; wings hyaline, immaculate ; anterior and intermediate feet white, extremities of the joints tinged with rufous or yellow, posterior feet more robust and elongated, joints yellow, white at base, thighs clavate, bifasciate with rufous near the tip, tibia trifasciate with [76] rufous; abdomen cylindric, elongated, dilated at tip, segments yellow-brown, dark reddish- brown at base and on the terminal submargin, terminal margins white. Length two-fifths of an inch nearly. The nervures of the wings of this insect, do not perfectly cor- respond with those of L. tipuloidcs, which circumstance, com- bined with another highly important difference that this insect exhibits, in having but two nails to the tarsi, would justify the '>-eneric separation of the annulatus from the tipidoides, and its reference to a distinct genus. It is not a Phthiria of Wiedemann ? [Name changed to L. Jiistrio, by Wiedemann. — Sacken.] HYBOS Meig. H. thoracicus. — Thorax ferruginous, trilineate ; abdomen piceous. Inhabits Pennsylvania. Antennae and rostrum yellow, pale ; thorax ferruginous, with three dilated black lines : wings obscure, a dark red-brown stig- ma; feet reddish-brown, the posterior pair darker than the (ithers, tarsi yellowish ; abdomen dull-piceous. Length rather more than one-fifth of an inch. BIBIO Latr. Meig. 1. B. PALLIPES. — Black; tergum with a yellowish-piceous lateral margin. Inhabits Pennsylvania. Body hairy ; wings hyaline, a large fuscous stigma, [77] inter- stice of the first and second nervures yellowish ; feet whitish- [Vol. III. OF PHILADELPHIA. 69 yellow, spines of the anterior tibia equal ; posterior tibia some- what dilated. Length one-quarter of an inch. -^ . , 2. B. HETEROPTERUS. — Black ; wings with a fuscous anterior margin and nervures. Inhabits Maryland. Body immaculate with dusky hair, feet rather long, posterior tibia at tip, and first and second joints of the tarsi dilated; wings brown, the costal margin fuscous, nervures difiiering somewhat in their arrangements, and the inferior branch of the lower furcate nervure curves backwards at the inner margin so as almost to meet the succeeding nervure at the edge of the wing. Length more than three-tenths of an inch, -j, . 8. B. ALBiPENNis. — Black J wings white, with a fuscous stigma. Inhabits Pennsylvania. Body with cinereous hair ; head above with black hair ; halteres uscous, scapus brown ; nervures brown ; tarsi black-brown, ex- terior spine of the anterior tibia much larger than the interior one. Length three-tenths of an inch. This is a very common insect. The wings have a white ap- pearance, and are strongly contrasted with the color of the body, and the brown and definite stigma. The posterior tibia of the male are much more dilated towards the tip than those of the female. 4. B. ARTICULATUS. — Black, thorax and feet rufous. Inhabits Pennsylvania. [78] Wings brownish, more particularly at the costal margin, and with a very distinct stigma \ poisers pale, dusky at tip ] feet pale rufous, joints and anterior tibia reddish-brown, tarsi dusky at tip, spines of the anterior tibia subequal. Length 5 rather more than one-quarter of an inch. 5. B. ORBATUS. — Black, immaculate ; wings fuscous, the cen- tral connecting nervure wanting. Inhabits Pennsylvania. Feet and coxae piceous ; humeral tubercle piceous ; wings dusky, the costal margin particularly ; the transverse nervure of 1823.] 70 ACADEMY OF NATURAL SCIENCES the disk, that in other species connects the inner branches of the two bifurcated nervures together, is entirely wanting. Length one-fifth of an inch. [Wiedemann who had specimens communicated by Say before him, describes this species as Dilophus orbatus Say. I collected a Dilojyhus in Florida which agrees very well with both descrip- tions. The absence of the central cross nervure is not a constant character ; although it is not seen in many specimens, some show the cross nervure distinctly, others have it very faint, and others again show a beginning of it. This cross nervure, when ap- parent, is situated about half way between the upper cross ner- vure and the fork. Wiedemann describes the female ; the sex is not mentioned by Say, but he evidently refers to the same sex. As I have several males in my possession, and they diifer con- siderably from the female, I take occasion to give the descrip- tion. D. ORBATUS. % — Black, shining : feet black, with black hairs- Wings pale yellowish, tinged with pale brownish along the ante- rior border ; stigma fuscous ; nervures near the anterior border brown j the others very pale ; central cross nervure sometimes wanting, sometimes distinct, and then situated as in the female. The color of the hairs on the feet, and the position of the cross nervure distinguish the male of this species from the male of another American Dilophus, [D. scrraticoUis Walker ?), which is, besides, a little smaller. The females of the two species are entirely different, and cannot be easily mistaken. — Sacken.] SCIARA Meig. Wied. S. FEMORATA. — Black ; thighs pale. Inhabits Pennsylvania. W^ings hyaline, nervures fuscous; poisers large; coxse and thighs pale, or yellowish-white ; abdomen dirty yellowish obscure, lateral margin and posterior margins of the segments blackish. Length less than one-tenth of an inch. DILOPHUS Meig. Wied. 1. D. STioMATERUS. — Black J stethidium and thighs rufous ; two series of spines on the thorax, wings whitish with a dusky costal spot. [79] [Vol. III. OF PHILADELPHIA. 71 Inhabits Missouri. Body deep black ; head elongated; antennae black, basal joint pale ; eyes oblong-oval ; thorax pale rufous, a transverse, unin- terrupted series of approximate acute spines on the collar, and a series of rather smaller ones over the insertion of the anterior feet; wings whitish with a distinct black spot on the middle of the costal margin ; feet black, trochanters and middle of the thighs pale rufous ; anterior tibia with a series of prominent acute spines, on the anterior middle and tip, spines piceous at tip. Length one-quarter of an inch nearly. Taken at Engineer Cantonment. 2. D. SPINIPES. — Black ; stcthidium and thighs rufous ; two series of spines on the thorax of which the anterior one is inter- rupted in the middle; wings fuscous. Inhabits Missouri. Body black ; head elongated ; thorax pale rufous, a transverse scries of approximate spines on the collar interrupted in the middle, and a series of smaller ones over the insertion of the an- terior feet ; wings blackish, costal margin darker ; feet black, thighs and basal joints of the anterior pairs pale rufous ; anterior tibia with a series of acute prominent spines near the base, mid- dle and at tip. Length from the eyes to tip of the wings three-tenths of an inch. Found near Fort Osage. Differs from the preceding species in being much larger, in having the anterior series of thoracic spines [ 80 ] interrupted in the middle, and in having a triple series of spines on the ante- rior tibia. 3. D. THORACICUS. — Black; stethidium, and two anterior pairs of thighs pale rufous ; anterior series of thoracic spines uninter- rupted. Inhabits Pennsylvania and Maryland. Thoracic spines, scutel and metathorax black; pleura and pectus, excepting the incisures, black ; wings fuscous, stigma darker; poisers black ; anterior coxje and thighs, excepting the basal and apical incisures; pale rufous ; intermediate thighs, ex- 1823.] 72 ACADEMY OF NATURAL SCIENCES cepting the base and tip, also very pale rufous ; anterior tibia spinous before, and beyond the middle and at tip. Length to the tip of the wings nearly one-quarter of an inch. Distinguishable from spinipes by its inferiority in size, and from stigmaterus by its dark colored wings, &c. MYOPA Fab. Latr. 1. M. VESICULOSA. — Head beneath vesicular and white; wings whitish at base. Inhabits Pennsylvania. Body rather robust ; rostrum dark reddish-brown ; hypostoma and cheeks vesicular, white, slightly tinged with yellow; front and occiput yellowish-brown, the former with two dilated dark lines ; antennae reddish-brown, third joint yellowish-white ; tho- rax reddish-brown, obscure, varied with blackish, beneath the scutel deep black ; poisers pale yellow ; [81 ] wings a little dusky, slightly darker on the middle of the costal margin, base whitish; pleura and pectus reddish-brown ; feet dark reddish-brown, knees, base of the tibia and tarsi, excepting the points of the articula- tions, yellowish-white; tergum blackish-brown, paler on the margin ; % 'i . Length nearly three-tenths of an inch. 2. M. LONGICORNIS. — Body black, hairy; wings dusky, pale at base : antennse as long as the head. Inhabits Missouri. Antennae pale on the inner side and beneath ; hypostoma pale with a silvery reflexion ; front and vertex dusky ; proboscis black ; thorax with two obsolete pale lines ; wings blackish, pale towards the base ; poisers whitish ; anterior pairs of feet with the thigh beneath, at base and leg, pale ; anterior pair of tro- chanters pale, with a silvery reflexion ; posterior feet, thighs pale on the basal moiety ; abdomen clavate and hamate at tip. Length about three-tenths of an inch. 3. M. BIANNULATA. — Thorax dark-brown ; tergum pale tes- taceous, annulate with dusky ; hind thighs biannulate with brown. Inhabits Pennsylvania. Hypostoma pure silvery; front yellowish rufous; vertex black- ish-brown, obscure in the middle ; antennae white at base, third [Vol. III. OF PHILADELPHIA. 73 joint yellowish-rufons, the extreme point dusky, style situate near the tip, porreet, black; rostrum nearly as long as the body, black- ish, at base white ; thorax margined with white ; pleura, pectus, and anterior pairs of feet [82] white; poisers fuscous j posterior thighs tinged with rufous on the middle, and with a brown an- nulus each side of the middle, posterior tibia at tip, together with their tarsi, fuscous ; tergum reddish-yellow, posterior mar- gins of the segments brown ; venter narrow, white ; 9 oviduct fuscous on its posterior half. Length nearly % three-tenths, 9 more than seven-twentieths of an inch. The habitus of this insect is entirely different from others of the genus. The body is slender, and not incurved, the rostrum much elongated, and the oviduct of the female resembles an at- tenuated continuation of the abdomen. [According to Wiedemann, who compared typical specimens, this is M. Uylata Fabr. — Sacken.] CONOPS Fabr. Latr. 1. C. MARGINATA. — Black, slightly hairy ; an interrupted line upon the thorax before, and abdominal sutures yellow; costal moiety of the wings fuscous. Inhabits Missouri. Body black, with fine hairs; head yellowish-white; vertex black, a longitudinal line bifarious at the antennae, and trans- verse above; hypostoma with an impressed black sagittate spot, near the inferior tip of which, on each side, is a small black tri- angular spot ; eyes chestnut ; proboscis black ; antennae black, basal and terminal joints pale beneath ; vertex black, hardly ele- vated above the eyes ; thorax, a yellow, anterior, transverse line interrupted in the middle ; scutel ferruginous ; wings, costal moiety black; halteres [83] whitish; feet pale reddish-brown: abdomen clavate, incurved at tip, segments, excepting the ulti- mate one, margined at tip with yellow; central connecting ner- Ture of the wing minute. Length more than two-fifths of an inch. 2. C. SAGITTARIA. — Black, slightly hairy; humeral tubercle ferruginous ; nearly two-thirds of the wing fuscous. Inhabits Pennsylvania. 1823.] 74 ACADEMY OF NATURAL SCIENCES Body with short hairs ; head yellowish white ; vertex in one sex black, in the other dirty whitish ; front with a longitudinal black line bifarious at the base of the antennae, and a transverse one above ; hypostoma with an impressed sagittate spot, on each side, near the base of which is a black spot ; proboscis testaceous, blackish at tip; antennae dusky above, beneath terminal joint rufous; scutel dirty rufous; feet rufous; abdomen, segments ob- soletely edged with yellowish, that of the petiole with dull cine- reous ; central connecting nervure of the wings very obvious. Length eleven-twentieths of an inch. This is a larger species than the preceding, with a much more considerable portion of the wings obscured, no interrupted tho- racic fascia, and a much longer connecting nervure on the cen- tre of the wing. [Name changed by Wiedemann to C. nigricornis. — Sacxen.] ZODION Latr. Z. FULVIFRONS. — Cinereous, front fulvous ; thorax with two distant brown lines. [84] Inhabits Maryland and Pennsylvania. Head beneath, mouth, hypostoma and orbital line, pure white ; proboscis black ; antennaa fulvous; first joint ferruginous, second with a dusky line on the superior edge ; occiput blackish ; poisers pale yellowish, style rufous, feet dull rufous, tibia white on the exterior edge ; tergum with two irregular blackish lines, terminal segments testaceous. Length more than three-tenths of an inch. On flowers. 2. Z. ABDOMlNALis. — Tcstaccous ; thorax dusky; proboscis black. Inhabits near the Rocky Mountains. Body with numerous short hairs ; head silvery ; vertex testa- ceous ; antennae pale rufous ; eyes and stemmata reddish-brown ; proboscis black ; thorax dusky cinereous, with two dorsal abbre- viated fuscous lines, and an obsolete intermediate one ; wings hy- aline, immaculate, nervures at base testaceous, towards the tip fuscous ; abdomen and feet testaceous. Length to the tip of the abdomen rather more than one-fourth of an inch. [Vol. III. OF PHILADELPHIA. 75 I obtained an individual at Engineer Cantonment, less than half the above mentioned size. DOLICHOPUS Fab. D. SIPHO. — Green ; wings bifasciate ; feet whitish. Inhabits the United States. Body green brilliant; hypostoma pruinose ; front blue; an- tennae and palpi black ; proboscis yellowish ; thorax tinged with blue ; scutel blue ; wings with two brown or fuliginous, somewhat oblique bands beyond the middle, which do not attain the thinner margin, and are connected on the costal margin by a dilated line of the same color, forming a siphon-like mark ; pectus on each side with a somewhat silvery reflection ; feet whitish ; tarsi dusky. Length one-fourth of an inch. Not uncommon ; the terminal segments of the tergum of the male are tinged with golden, but the ultimate segments in each sex is blue. Central nervure furcate, the exterior branch widely angulated and terminating near the tip of the preceding ner- vure. [Belongs to Psihpus Meig. — Sacken.] 2. D. unifasciatus. — Bluish-green ; a white band at the base of the abdomen. Inhabits Pennsylvania. Body bluish-green, polished, slender : antennae, palpi and pro- boscis whitish ; scutel blue ; wings immaculate ; feet whitish ; tergum, first segment and half of the second whitish, posterior half of the second segment and third segment much tinged with blue, remaining segments green. Length one-fourth of an inch. Central nervure of the wing furcate, the exterior branch widely angulated and terminating near the tip of the preceding nervure, which is curved very considerably inwards, towards its tip. [Also a Pgilojms ; the name is changed to P. Sayi by Wiede- mann.— Sacken.] 4. D. OBSCURUS. — Blackish-brassy ; wings dusky ; feet pale. Inhabits Pennsylvania. [86] Head dark-silvery ; antennas black-brown ; mouth blackish ; thorax and scutel dark -brassy ; wings dusky ; feet white, a little 1823.] 76 ACADEMY or NATURAL SCIENCES dusky on the tarsi ; poisers wtite ; tergum rather darker than the thorax. Length less than three-twentieths of an inch. The central nervure of the wing is nearly rectilinear, being hardly perceptibly reflected. 5. D. FEMORATUS. — Green ; tibia and tarsi whitish. Inhabits Pennsylvania. Body brilliant green, with bluish reflexions ; front pruinose ; antennae blackish ; proboscis yellowish ; wings hyaline ; scutel blue ; thighs green, and excepting the posterior ones, whitish at tip, tibia white, tarsi dusky; tergum, ultimate joints cupreous at their bases. Length three-twentieths of an inch. The brilliancy and shade of green in this insect are similar to D. sipJio ; when living, and in the sun's rays, it resembles bur- nished gold, nervures nearly as in sipho. [Belongs to PsUopus. — Sacken.] 6. D. CUPREUS. — Green, varied with cupreous ; feet whitish, tipped with dusky. Inhabits Maryland. Front pale, with minute silvery hairs ; vertex purple-blue ; antenna? pale, yellowish, black on the upper edge and at tip; palpi and proboscis pale-yellowish ; thorax cupreous ; scutel greenish-brassy ; feet whitish, dusky at tip ; tergum green, varied with cupreous, posterior margins of the segments cupreous. Length one-fourth of an inch. [87] This species is more robust than the preceding ones. I ob- tained several specimens on the eastern shores of Maryland and Virginia. Central nervure abbreviated, but angularly connected near its tip to its parallel branch, by a short nervure, which in- clines a little towards the base of the wing. [Name changed by Wiedemann to D. cuprmns, as there was previously a European D. cupre^is Fall. — Sacken.] 7. D. patibulatus. — Green ; wings bifasciate ; feet black. Inhabits E. Florida. Body green, brilliant ; hypostoma pruinose ; antennae and palpi black; proboscis piceous-black ; wings with two brown or fuligi- ginous bands beyond the middle, perpendicular to the costal edge, not attaining to the inner margin, and connected on the [Vol. III. OF PHILADELPHIA. 77 costal margin by a dilated line of the same color ; feet black ; thighs and coxae blackish-blue. Length rather more than three-twentieths of an inch. % . This species closely resembles D. sipho, but it is much smaller, the bands of the wings without any obliquity, and the feet en- tirely colored. [Belongs to P^ilopus. — Sacken.] SARaUS Latr. Meig. S. VIRIDIS. — Body green, polished ; wings dusky ; eyes above brassy. Inhabits the United States. Body green, polished, varied with brassy, and in a certain light purplish, and covered by very short hair ; eyes very large, brown, when recent deep green, polished beneath, above tinged with brassy, sub-opaque, [88] and separated from the green of the inferior portion, by a red line ; antennae black ; labia pale ; tibia blackish. Length seven-twentieths of an inch. Var. a. Bluish-purple. Var. b. Bluish-purple ; abdomen green. A very pretty species ; I found it near Cincinnati, perched upon a leaf; it is also an inhabitant of the Atlantic States. It has a bright-green appearance, although covered with very short hairs, but these are hardly discernible to the unassisted eye. It is closely allied to S. xanthopterus Fab., but the joints of its feet are not yellowish, as those of that species are. SC^VA Fabr. Latr.* 1. S. POLITA. — Thorax with a yellow line each side, and a cinereous dorsal one; tergum with band and quadrate spots yellow. Inhabits the United States. Head yellow, above the antennse dusky silvery ; thorax some- what olivaceous, a yellow line above the wings, and a dorsal cinereous one : scutel dusky yellowish, with a paler margin; feet whitish ; tergum black, basal segment with a basal lateral edge; 1823.] *The name now adopted for this genus is Syrphus Linn. — Sackek. 78 ACADEMY OF NATURAL SCIENCES second segment with a transverse yellow band on the middle ; third and fourth segments with a band and longitudinal line, each side of which latter is a large transverse subtriangular spot, yellow ; fifth segment with the yellow spots and base, but destitute of the longitudinal line. Length about three-tenths of an inch. [89] 2. S. OBLIQUA. — Thorax greenish bronze, with a yellow dot before the wings ; tergum banded and spotted with yellow. Inhabits the United States. Head yellow, a dusky line above the antennae ; orbits yellow to the vertex ; antennae blackish on the superior edge ; thorax dark green-bronze, a large yellow spot before the wings ; scutel bright-yellow ; feet whitish, anterior tibia and tarsi a little di- lated, the latter with short joints, posterior thighs with one ob- solete band and tibia two banded, extremity of all the tarsi dusky ; tergum black, first segment with a yellow basal edge ; second segment with a band at the base, interrupted into two ob- long triangles, a broader one on its middle, yellow ; third seg- ment with one band which is sometimes double ; fourth and fifth segments each with an oblique oblong oval spot each side, and two longitudinal lines on the middle, yellow. Length about three-tenths of an inch. Kesembles the preceding, but there is no line upon the thorax, and the markings of the tergum are different. 3 S. CONCAVA. — Thorax bluish-green, tergum with four yel- low bands. Inhabits Pennsylvania. Head whitish, sericeous ; antennae pale testaceous ; margin of the mouth dusky; thorax bluish -green, with pale cinereous hairs ; scutel dusky, somewhat livid ; feet whitish, dull rufous at base ; pectus dark glaucous, tergum black, quadrifasciate with yellow ; [ 90 ] first band interrupted, triangular each side, the others con- cave behind, terminal one narrow. Length more than seven-twentieths of an inch. Very much resembles S. ribesii of authors, but the second and third bands of the tergum are widely concave behind, instead of being almost acutely notched, as in the common European species. I obtained several pupae of this insect, adhering by the [Vol. m. OF PHILADELPHIA. 79 inferior part of the abdomen to the rails of a fence. This in- cluded insect was evolved on the 22d of April. 4. S. QUADRATA. — Thorax bluish-bronzed ; abdomen with eight very large quadrate yellowish spots. Inhabits the United States. Head bluish-bronze, with short cinereous hair ; frontal eleva- tion dusky ; antennae dark reddish-brown ; thorax and scutel bluish-bronze, polished, immaculate ; feet testaceous ; anterior tibia and tarsi of the male dilated, the joints of the latter much shortened; first and last joints of the posterior tarsi blackish ; tergum with eight very large, quadrate, fulvous spots, occupy- ing nearly all the surface, leaving only a dorsal line and inci- sures black, the two spots of the penultimate segments are hardly separated, sometimes united into a continuous band, and the ul- timate or anal segment is immaculate, somewhat livid ; venter yellow, whitish at base. Length one-third of an inch nearly. This insect is very nearly related both in form and colors to S. mellina Fab., but the spots of the tergum occupy a far greater portion of that part. [91] 5. S. EMARGINATA. — Tliorax dark green, with a yellow mar- gin; tergum banded with yellow. Inhabits East Florida. Front yellow ; antennae on the superior margin fuscous ; a double blackish spot above the base of the antennae; thorax dark-green, a yellow line each side ; scutel yellow ; feet yellow, posterior thighs and tibia dusky in the middle; tergum black; first segment yellow on the exterior edge ; second segment with a transversely oblong-oval spot on each side, attaining the exterior edge ; third segment with the edge of the basal angles, emargin- ate band on the middle, not attaining the lateral edge, and posterior edge yellow ; fourth segment with the edge of the lateral angles (which joins the tip of the preceding segment to form a narrow band,) band on the middle not attaining the lateral edges, and most profoundly emarginate behind, and posterior edge yellow ; fifth segment with a triangular basal spot each side, and tip, yellow. Length to the tip of the wings half an inch. 1823.] 80 ACADEMY OF NATURAL SCIENCES It requires some examination to perceive the difference be- tween this insect and the S. corollas of Fabr., but on inspecting the third and fourth segments of the tergum, it will be observed, that there are at least two more bands on our species ; these bands are narrow and are formed by the confluence of the yellow and posterior edges of those segments with the yellow basal angles of the succeeding segments. It is highly probable that the band on the middle [92] of the fourth segment, and perhaps also that on the third are sometimes entirely separated by their posterior emargination, each into two oval spots. 6. S. MARGINATA. — Thorax blackish, with a yellow margin j tergum spotted, banded and edged with yellow. Inhabits the United States. Head yellow, a blackish line above the anteneae ; thorax black- ish, tinged with olivaceous or glaucous, a lateral yellow line con- tinued to the scutel and an obsolete dorsal cinereous one ; scutel yellow ; feet pale, posterior tarsi a little dusky at tip ; tergum blackish, edged with yellow ; first segment with a yellow basal edge ; second segment with a yellow band on the middle ; third and fourth segments each with a dorsal line and somewhat ob- lique spot each side confluent with the base yellow, sometimes tinged with rufous ; fifth segment with two oblique yellow spots confluent at tip. Length rather more than one-fifth of an inch. This insect is smaller 'than the preceding ones, and may be readily distinguished from them by the yellow abdominal edge, as well as by the different arrangement of its spots. It is sub- ject to vary in the character of its tergum, in having the spots sometimes almost confluent with each other, or in being colored with rufous. 7. S. GEMiNATA. — Thorax with a yellow margin; tergum spotted and banded with yellow. Inhabits the United States. Head yellow silvery, at its junction with the thorax [93] glaucous ; antennae yellow ; thorax bronze-blackish, a yellow line each side, and an obsolete cinereous dorsal one ; scutel color of the thorax, with a yellow margin : feet pale, posterior pair with [Vol. III. OF PHILADELPHIA. 81 the thighs and tibia arquated, the former blackish at tip, the latter sub-bifasciate with brown; tergum black; first segments yellow on the basal edge ; second segment with a yellow band on the middle ; third and fourth segments with each a central longi- tudinal line, and two triangular spots on each side ; fifth segment four spotted. Length about one-fifth of an inch. About equal in size to >S^. marginata S., from which it may be known by its double lateral spots of the tergum, as well as by the absence of a yellow edging upon this part of the body. [Macquart has placed this as a new genus Toxomerus, describ- ing it also as a new species, T. notatus Macq., Dipt. Exot. 5th Supple. 93 ; tab. 5, fig. 4. — Sacken.] 9. S. apfinis. — Thorax blued-black ; tergum black with three yellow lunules on each side. Inhabits Arkansa. Head whitish, between the superior angles of the eyes black ; antennae fuscous ; frontal elevation, superior oral angle, and pro- boscis black ; thorax and pectus blued-black, with long dense whitish hair each side ; nervures testaceous ; scutel pale testace- ous ; feet whitish, dusky at base ; tergum black, with three lunules on each side, and the two terminal segments edged with yellow; venter yellowish, exterior edge and disks of the segments black. Length to the tip of the wings three-fifths of an inch. Size of >S'. transfuga Fabr., which it very closely [94] resem- bles, and is to be distinguished by the somewhat darker coloring. Is it not a variety of that species ? KHINGIA Fab. R. nasica. % . — Tergum yellow, incisures and dorsal line black. Inhabits the United States. Front yellow, beneath the mouth dusky; nasus prominent; thorax bronze, with two obsolete cinereous lines on the anterior margin ; scutel pale testaceous, a large brown spot on each side ; feet pale yellowish, thighs dull red-brown at base, posterior tibia in the middle and first joint of the tarsi dusky ; tergum black, a large transversely oblong quadrate yellow spot occupies each 1823.] 5 82 ACADEMY OF NATURAL SCIENCES side of the disk, and extends to the lateral edge of each of the three basal segments. Size of *S^. rostrata Fab., to which it is very closely allied, but it has a larger portion of black upon the tergum, the incisural lines and the dorsal line being wider, and of a much more in- tense color ; the fourth segment also is much darker than in that insect. I have a female still more like the rostrata ; the color and markings of the head, thorax and scutel being similar, and the fourth segment of the tergum is much tinged with yellow, but still the above remark respecting the intensity of the color of the sutures and dorsal lines apply to this specimen. [95] SICUS Meig. S. PENESTRATUS. — Blackish ; feet pale, thighs with a black line. Inhabits the Middle States. Antennae yellowish-white ; palpi pure white ; proboscis color of the antennae ; thorax piceous-black ; scutel bi-spinous ; wings a little dusky J feet whitish, anterior thighs dilated, with gener- ally a black serrated curved line on the inner side, anterior tibia and posterior thighs and tibia with a blackish line on each side, a black spot generally on the first joint of the anterior coxae; tergum brown, last joint black. Length three-twentieths of an inch. [This genus is Tacliydromia Meig. — Sacken.] EMPIS Fab. Lat. 1. E. 5-lineata. — Body blackish-cinereous ; thorax five-lined ; feet dull testaceous. Inhabits Missouri. Eyes sanguineous ; front beneath the antennse cinereous ; pro- boscis dark -brown ; thorax with three longitudinal, hairy, brown, dorsal lines, obsolete behind, and a lateral one each side ; wings brown, somewhat paler at base; feet brown-testaceous; tarsi black. Length to tip of wings nearly half an inch. The nervures of the wings are like those of Tacliydromia nigripennis Fab. [Belongs to Rhamplwmyia Meig. — Sacken. 1 Vol. Ill OP PHILADELPHIA. 83 2. E. CILIPES — Body cinereous; thorax quadrilineate with black; wings brown, paler at base. [96] Inhabits Ohio. Body blackish-cinereous ; eyes red-brown, those of the male occupying nearly all the head ; stemmata black ; antennae black, first and second joints with short cinereous hairs; proboscis corneous, black, polished ; thorax hairy, two longitudinal, dorsal black lines, obsolete behind, and a lateral one each side ; wings brown, paler at base ; nervures dark brown ; feet black ; poste- rior tibia in the male, dilated towards the tip and deeply hairy above, hairs cinereous ; abdomen black, densely ciliated with cinereous hair, attenuated to an acute tip in the female, and in the male the tip is dilated, and abi-uptly reflected. Length of the body three-tenths of an inch. A rather common insect, about the 16th of May, near Cincin- nati. The nervures of the wings are like those of the preceding species, from which it may be distinguished by being smaller and having one line less on the thorax, &c. [Also a Rhamphomi/ia. — Sacken.] 3. E. scolopacea. — Cinereous, with a silvery reflection ; feet reddish-brown. Inhabits Pennsylvania and Maryland. Head black ; antennas dark reddish-brown ; proboscis yellow- ish; thorax slightly ti-ilineate ; tergum immaculate silvery, re- flexion brighter than that of the thorax ; wings immaculate, ner- vures pale ; feet dull reddish-brown. Length rather more than three-twentieths of an inch. On flowers. [97] CALOBATA Latr. Meig. 1. C. ANTENN.^PES. — Black ; feet pale, anterior tarsi white, posterior tarsi white at base. Inhabits the United States. Body elongated, slender, deep black, immaculate ; eyes chest- nut brown ; antennse, terminal joint white ; thorax deep-black, with a plumbeous tinge ; feet elongated, anterior pair moderate, shorter than the body, black, pale at base, tarsi pure white, in- termediate and posterior pairs much longer than the body, pale, 1823.] 84 ACADEMY OF NATURAL SCIENCES thighs beyond the middle, and near the tip annulate with black, tibia black, somewhat pale towards the tip, tarsi black, of the in- termediate ones pale on the terminal joint, of the posterior ones, basal joint pure white j abdomen deep black, polished, venter pale beneath on the middle segments. Length of the body three-tenths, of the posterior feet less than three-fifths of an inch. The anterior pair of feet, when compared with the others, are very short, and being extended before the head, considerably ele- vated above the plane on which the insect moves, and also being constantly vibrated, they assume the appearance of antennae. The whiteness of the anterior tarsi is very distinct and characteristic. This species occurred in the State of Illinois, it is also found in Philadelphia. 2. C. PALLIPES. — Black ; mouth, antennae and feet yellowish- white. [98] Inhabits Missouri. Body black, elongated, slender; front, antennae and mouth yellowish-white ; vertex velvet black, opaque, margined each side by a silvery line : thorax with a whitish line each side before the wings : nervures pale ; feet including the coxae yellowish-white. Length to the tip of the abdomen, more than one-fourth of an inch. A much smaller species than the preceding. [This species is a Micropeza Meig. — Sacken.] LOXOCERA Latr. L. CYLINDRICA. — Yellowish-rufous ; feet paler. Inhabits Pennsylvania. Body yellowish-rufous ; head obsoletely varied with dusky be- hind the vertex; antennae fuscous, pale at ?jase, beneath the head whitish ; thorax with an undulated band on the anterior margin, dorsal line and an obsolete line before the wing, black ; wings a Uttle dusky, particularly at tip ; feet whitish; abdomen immac- ulate. Length less than three-tenths of an inch. Var. a. Lineations of the thorax obsolete or wanting. About the size of i. v:hneamo7iea Fab., but it differs frojn that inject in many characters. [Vol. m. OF PHILADELPHIA. 85 PYROPA Illiff. P. FURCATA. — Yellowish, hairy; below the scutel pale plum- beous ; wings with two dusky anastomoses. [ 99 ] Inhabits Missouri. Body pale yellowish-brown, hairy ; head beneath the antennae and narrow orbits yellowish-white, a little polished ; antennae and large spot above bifurcated at tip, rufous ; proboscis piceous; thorax lineated obsoletely with brown ; wings with two blackish anastomoses ; beneath the scutel tinged with pale plumbeous ex- tending downward to the origin of the posterior feet ; terguni densely hairy : feet hairy, particularly the anterior pair, the thighs of which are marked by a dilated dusky line above. Length to the wing tips from two-fifths to nine-twentieths of an inch. Rather less than P. httaria which it very strongly resembles, but may be distinguished by the dusky mark on the anterior thighs. [This genus is ScatopTiaga ^Latr. — Sacken.] OCHTHERA Latr. 0. EMPiFORMis. — Whitish; tergum black; head cinereous, eyes very large, black. Inhabits Illinois. Body whitish; head cinereous, sub-globular; eyes oval, very large, approximating beneath the origin of the antennae black ; antennae whitish, abruptly broken outwards at the third joint ; rostrum pale ; thorax dusky above ; feet white, anteriors, thighs dilated, robust, emarginate behind the inferior middle, for the reception of the tips of the tibia, and armed beneath with dis- tant equidistant, rather long setae, tibia incurved at tip and mu- cronate, armed beneath with [100] approximate, short, setae, in- termediate and posterior feet white, tips of the tarsi blackish ; abdomen deep black, immaculate. Length of the body one-tenth of an inch. [Wiedemann has changed the name to 0. empidiforinis. — Sacken.] 1823.] 86 ACADE3MY OF NATURAL SCIENCES SCENOPINUS Latr. Fabr. S. PALLIPES. — Thorax black, a little metallic, a small rufous tubercle on the edge near the humerus ; feet pale. Inhabits Pennsylvania. Head black, slightly metallic, with numerous short hairs, giving it a granulated appearance, a glabrous polished frontal and or- bital line ; thorax with numerous short hairs and with the scutel appearing granulated, an obsolete rufous tubercle on the lateral edge near the humerus ; wings a little dusky, nervures brown ; poisers yellowish, on the superior surface dark brownish ; feet pale-yellowish, tarsi dusky ; tergum black, transversely grooved, polished ; venter black, with a metallic tinge. Length 9 less than one-fifth of an inch. This species is very closely allied to A^ fenesfratus Fab. BACCHA Meig. B. FUSCIPENNIS. — Bronzed ; wings dusky, with a whitish spot at the extremity. Inhabits Pennsylvania. Body dark bronzed : head yellowish, above the [101] antennje bronzed ; wings dark fuliginous, with a hyaline marginal on the thinner margin near the tip and near the base ; feet dull testa- ceous, posterior pair much the longest : abdomen elongated cyl- indric, tinged with rufous. HELEOMYZA Fall. H. 5-PUNCTATA. — Light reddish-brown ; wings with a few fus- cous spots; tergum fasciate with black. Inhabits Missouri. Body pale reddish-brown ; vertex tinged with fulvous ; eyes dull sanguineous ; antennae reddish-brown, seta black, plumose, at base separated by a slightly elevated, obtuse, abbreviated carina; front yellowish-testaceous; gula and jugulum, whitish ; thorax with numerous black points, and two dorsal series of setae ; wings dusky, five blackish spots, of which two are on the anastomoses and three at the tip, costal edge with short rigid aetie ; pectus, venter and feet whitish-testaceous, three terminal [Vol. III. OF PHILADELPHIA. 87 tarsal joints black ; tergum paler than the thorax, posterior mar- sins of the segments with a definite black band. Length to the tip of the wings seven-twentieths of an inch. Very common on the Missouri ; I observed it particularly above Cow Island. [The genus is called Hdomi/za Fall. — Sacken.] OLFERSIA Leach. 0. ALBIPENNIS. — Blackish-brown; wings whitish. [102] Inhabits Ardca hfrodias. Mentum white ; thorax with the cruciate lines distinct, the longitudinal line tinged with yellow, humeral tubercle prominent, pale, obtuse; scutel with an impressed line; nervures brown, inner cellule less than half as long as the preceding one which ex- tends to the base of the wing ; pectus with a prominent angle each side between the anterior pairs of feet ; tergum pale brown- ish, with a black base, disk and tip. Length one-fifth of an inch. ORNITHOMYIA Latr. Leach. 1. 0. NEBULOSA. — Head yellow ; feet pale ; tibia with two reddish-brown lines. Inhabits Strix nehulosa. Eyes blackish-brown ; vagina and hypostoma pale ; thorax reddish-brown, with a large yellowish humeral spot and three longitudinal lines, of which the intermediate one includes an impressed line, which interrupts a transverse impressed line ; humeral angle prominent, subacute ; spiracle white ; marginal nervures blackish-brown, those of the disk brown; scutel red- dish-brown, varied with yellow at base ; pectus yellow-white, an- terior margin bifurcated; tarsi dark reddish-brown, nails black; abdomen pale-brownish, with black hair, first segment on its an- terior face pale-yellow. Length three-tenths of an inch. [103] 2. 0. PALLIDA. — Pale; intermediate cellule of the wing ex- tending nearly to the tip of the outer cellule. Inhabits Sylvia sialis. Eyes blackish-chestnut ; antennae chestnut, tip white ; labrum bifurcated, white ; hypostoma whitish ; front yellow- white, a 1823.] 88 ACADEMY OF NATURAL SCIENCES brown lunule above the hypostoma and spot on the vertex; throat and cheeks white ; thorax varied with pale-yellowish and pale honey-yellow, impressed cruciform lines distinct ; scutel pale honey-yellow, edged with pale-yellow ; costal nervures dark- brown at base, and those of the disk brown, the transverse ner- vure of the intermediate cellule is in contact with that of the preceding cellule ; pectus and feet white, tibia with a brown line, tarsi tinged with green ; nails black ; abdomen yellowish-white. Length less than one-fifth of an inch. 3. 0. CONFLUENTA. — Reddish-brown ; costal nervures of the wing confluent before their termination. Inhabits Ardea ccmdidissima. Vertex with a deeper brown spot ; occiput pale yellowish ; humerus with a pale spot, the angles not all produced, obtuse ; costal nervures fuscous ; feet yellow-brown, tibia with a dark- brown line, nails black. Length rather more than one-tenth of an inch. The remarkable character of the costal nervures of this spe- cies sufficiently distinguish it from others ; these nervures are confluent about half the length from the termination of the first cellule to their tip. [Wiedemann observes that the name should be 0. confiuens. — Sacken.] [104] MELOPHAGUS Latr. Leach. M. depressus. — Pale-testaceous; eyes subovate. Inhabits Ca-vus Virgin ianus. Body polished, a little hairy, but appearing perfectly glabrous to the eye : hypostoma yellow, with two brown lines ; vertex dusky, with three indented punctures ; thorax unequal, with an impressed line in the middle, with a dark reddish-brown poste- rior and lateral edge ; feet slightly hairy, claws black ; pectus with transverse rows of very short black spines; tergum depressed, punctured, two impressed lines diverge from near the base to the margin, beyond the middle ; venter paler than the tergum, with short prostrate black hair-like spines, and an arquated series of spines near the base. Length less than three-twentieths of an inch. [Vol. IIL OP PHILADELPHIA. 89 This appears to be a much smaller species than the Hlppohosca cervi of Oliv., to which it is very probably allied, though on con.- parison with Oliver's description I conclude it is very sufficiently distinct. It has, like that insect, slight rudiments of wings. [From Jour. Acad. Nat. Sci., Philadelphia, Vol. 3, 1823, pp. 139—216.] Descriptions of Coleopterous Insects collected in the late Expedition to the Rocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under the command of Major Long. Read Oct. 22, 1823. MANTICORA Fab. M. CYLINDRIFORMIS. — Dark chestnut-brown ; elytra irregularly punctured. [140] Inhabits Arkansa. Body dark chestnut-brown, impunctured : head blackish : la- brum bidentate : mandibles very strongly toothed : thorax nar- rowed behind, not elevated ; a longitudinal impressed acute line, a transverse obsolete arquated indented line before originating at the anterior angles, and a still more obsolete line also originating at the anterior angles and forming an angle behind the middle ; base not sinuated, with a marginal and obsolete submarginal in- dented line : scutel none : elytra joined at the suture, rather paler than the thorax ; irregularly marked with unequal punc- tures, many of which are preceded by a slightly elevated point ; a submarginal and marginal elevated line, line of the edge acute, not more elevated than the others : epipleura with larger and more distinctly scabrous punctures. Length more than one inch. Found at the base of the Rocky Mountains. The abdomen is much less dilated than that of M. maxillosa. [Afterwards the type of Amhlychila Say. — Leg.] CICINDELA Lin. Latr. 1. C. scuTELLARis. — Green ; elytra, excepting the anterior portion of the suture, reddish-brassy polished. Inhabits Arkansa. ' 1823.] 90 ACADEMY OF NATURAL SCIENCES Head and thorax green, a little varied with violaceous : an- tenna3 black at tip : labrum and mandibles at base above, white : elytra abruptly rounded at tip, punctured, a few larger punctures at base ; brilliant [ 141 ] reddish-brassy; region of the scutel from the middle of the base to beyond the middle of the suture, green : beneath blue varied with violaceous. Length two-fifths of an inch. A rather small, but very pretty species ; it was brought from the Arkansa by Mr. Thomas Nuttall. 2. C. FULGIDA. — Above red-cupreous, brilliant ; elytra with two lunules and an intermediate refracted band. Inhabits Missouri Territory. Body, above red-cupreous, highly polished : head hairy before, Taried with green and blue each side and before : labrum and ex- terior base of the mandibles white : antennae black at tip : thorax, impressed lines blue : elytra densely punctured ; a dilated lunule at the basal margin, a dilated refracted baud behind the middle, and a dilated lunule at the tip, white : beneath, hairy green. Length less than half an inch. In the dilated appearance of its lunules and band, this species very much resembles C. formosa, but it is a much smaller insect, much more highly polished, and not margined with white as in that insect. It inhabits near the mountains on the Nebraska (Platte) and Arkansa rivers. 3. C. LIMBATA. — Elytra white, suture, oblique line and dot green, exterior and basal edge bluish. Body green, varied with blue and purple, and with cinereous hair : antennse black at tip : labrum, and exterior and superior base of the mandibles, white : thorax hairy each side ; indented lines violaceous: [142] elytra white, a green sutural vitta nar- rowed behind, an oblique irregular line behind the middle, and a small triangular dot before the middle, green ; exterior edge and basal edge bluish-green or violaceous : beneath hairy : venter purplish. Length less than half an inch. This species, at first sight, resembles C. dorsalis, but is very distinct in its markings and in the form of its thorax. Found on the Nebraska (Platte) and Arkansa rivers. [Unknown to me. — Lec] [Vol. III. OF PHILADELPHIA. 91 4. C. PULCHRA. — Elytra red-cupreous, highly polished, exte- rior margiu purple, with two white dots. Inhabits Missouri Territory. Body greenish-purpurescent : vertex with a large cupreous spot : front very hairy : antennae, terminal joints black : labrum short, wide, hardly longer in the middle than each side; slightly 3-toothed : mandibles white ; teeth, extremity and inferior sur- face, black : thorax, disk with a larger double purplish-cupreous spot : elytra reddish-cupreous very brilliant ; exterior margin purplish-blue, with a humeral white dot and an angular white dot near the middle ; punctures numerous, larger, and more pro- found towards the base, obsolete at tip : pectus hairy each side ; postpectus and feet hairy. Var. a. Spot upon the humerus, none. Length less than seven-tenths of an inch. A remarkably splendid insect, and is a large species. It occurs in the country bordering the Platte and Arkansa rivers near the mountains. [ 143 ] 5. C. OBSOLETA. — Black ; labrum and point on the elytra white ; venter purple-black. Inhabits Missouri Territory. Body deep black, opaque : cheeks tinged with purplish, polished : antennae four basal joints dark purplish : labrum and exterior base of the mandibles white : thorax with two transverse indented lines connected by a longitudinal one ; lateral margin with cinereous hair : elytra with minute profound punctures to- wards the base, impunctured towards the tip ; a transverse white abbreviated line on the middle of the submargin, and an obsolete apical dusky-yellowish dot : venter tinged with purplish. Length four-fifths of an inch. Var. a. Black, immaculate. This large and fine species we observed to be not uncommon on the banks of the Arkansa river, near the mountains. It seems to be closely related to C. trisfis Fab. The elytra exhibit in some lights a silky appearance. BRACHINUS Weber, Latr. B. CYANiPENNis. — Testaceous ; elytra blackish-blue; venter dark reddish-brown. Length near seven-twentieths of an inch. 1823.] 92 ACADEMY OF NATURAL SCIENCES Body pale testaceous, with numerous minute hairs, which on the elytra are yellowish : head with a slight irregular frontal im- pressed line each side : antennae brown at tip : thorax with a longitudinal impressed line from the head to the scutel : elytra black-blue, [ 144 ] with very obtuse hardly impressed grooves : venter testaceous or blackish-piceous. This species was found by Mr. Nuttall in Missouri, and I have since observed great numbers of them near Engineer Canton- ment. These chiefly occurred during the winter, in a quarry from which building stone had been taken for the use of Camp Missouri. They were found hybernating in the fissures of the rocks. It differs from the B. fumans in being much inferior in point of size, in this respect approaching nearer to B. crepitans of Europe. The greatest width of the thorax is much more con- siderable in proportion to the shortest diameter, than that of the fumans, and of course the thorax appears proportionally wider before. The color, also, of the head and thorax is different, and the elytra are far more slightly grooved. It possesses the singu- lar power of crepitating common to its congeners. FERONIA Latr. 1. F. suPERCiLiosA. — Apterous; black, impunctured ; elytra tinged with purplish ; basal thoracic lines diluted. Length nearly two-thirds of an inch. Body black, impunctured, glabrous : antennae surpassing the base of the thorax, with brownish hair towards the tip ; frontal groove much dilated : labrum and palpi piceous, the former emarginate ; thorax wide before, much marrowed behind ; dorsal [ 145 ] line distinct, basal lines dilated ; a very distinct anterior transverse line ; lateral edge rectilinear from near the middle to the posterior angles ; posterior angles rounded ; base wider than the petiole : elytra tinged with purple ; striae profound, impunc- tured ; interstitial lines convex : beneath tinged with piceous. This species, which seems to belong to the genus Pterostichus of Bonelli, is closely allied to that which I have described under the name of sfj/gicus, but the thorax is differently formed, being much wider before, the antennae longer, frontal grooves more dilated, the elytra of a different color and more obtuse. [Vol. III. OP PHiLADELPHIA. 93 [This is the same as F. moesta Say, Trans. Am. Phil. Soc. 2, 42.— Lec] 2, F. HEROS. — Apterous, black ; mandible striated ; thorax contracted abruptly at base, posterior angles acute; elytral striae slightly impressed, punctured. Length rather more than nine-tenths of an inch. Body black and glabrous : mandibles much and deeply striated : thorax large, convex, rather abruptly contracted at the basal margin ; dorsal and anterior and basal lines distinct, basal mar- gin depressed, near the angles rugose ; an elevated line on the basal margin near to, and parallel with, the lateral edge ; basal angles rectangular : elytra very slightly striated ; striae acute, punctured, punctures obsolete towards the tip ; interstitial lines flat : beneath black. Brought from the Arkansa by Mr. Thomas Nuttall. It is the largest native species I have seen of this genus, and is probably referable to the genus Pterostichus of Bonelli. [Belongs to Evarthrus Lec. — Leg. [146] 3. F. MACULIFRONS. — Black ; thorax narrower than the elytra; vertex with two obsolete piceous spots ; elytra with acute im- punctured striae. Length more than two-fifths of an inch. Body black, glabrous : vertex with two obsolete piceous spots, placed near the eyes, and very distinct in a particular exposure to the light : antennae piceous, the joints paler at their bases, to- wards the tip with light brownish hair : palpi, tip of the mandi- bles and of the labrum piceous, the former tipped with pale yel- lowish : thorax narrower than the elytra, longitudinally suborbi- cular ; lateral edge a little recurved, particularly at the hind angles, which are not excurved, but obtusely rounded; dorsal line and anterior transverse line impressed, basal lines almost obsolete in the concavity of the lateral base, which is not rugose : elytra with a very slight cupreous reflection ; striae acute, im- punctured, interstitial lines flat : all beneath piceous. This insect was found in the Arkansa Territory by Mr. Thomas Nuttall. It is so closely allied to the species which I have named placida, as not to be, at first sight, distinguished from it ; never- theless, on comparing it with that species, it will be discovered 1823.] 94 ACADEMY OP NATURAL SCIENCES to be distinct by the spots on the vertex, the somewhat diflFerently formed thorax, and by the perfect smoothness of the cavities of the hiteral angles, which have not the slightest appearance of rugosity. [A Platynus of the division Agonum, which I have thus far failed to identify. — 'Leg.] 4. F. SCUTELLARIS. — Black ; posterior thoracic angles rounded ; region of the scutel much impressed. Length two-fifths of an inch. [ 14r7] Body depressed, black, immaculate ; antennas black ; thorax with a narrow margin ; dorsal line distinct ; basal lines dilated , so as to resemble large impressed spots ; lateral edge regularly arquated, not excurved behind ; basal angles rounded : elytra, obsoletely punctured ; interstitial lines a little convex ; region of the scutel much impressed ; humerus gibbous ; coxae and tarsi piceous. 5. F. ERRANS. — Green, polished; beneath black : feet, base of the antennae, of the palpi rufous. Body above polished green : labrum dark reddi.sh-purple : an- tennae fuscous, basal joint rufous ; palpi fuscous ; thorax obvi- ously wider than long ; dorsal line distinct ; basal lines much di- lated and with a few punctures : an obvious narrow margin, and reflected edge ; lateral edge not excurved behind ; posterior an- gles rounded ; base much wider than the petiole : elytra with a very slight reddish reflection ; striae very narrow, impunctured ; interstitial lines flat : beneath black : feet rufous. This species rembles F. nutans Say, but may be distinguished by a shorter thorax, which is margined and at base wider. [Also a Platynus. — Lec] 6. F. CONSTRICTA. — Apterous, blaek ; thorax much contracted behind ; elytra with punctured striae. Length half an inch. Body apterous, black ; antennae fuscous, piceous at base ; la- brum and palpi piceous : mandibles striated obliquely : thorax convex, wider than long, rather abruptly contracted at the pos- terior margin, [148] which is depressed ; dorsal, basal, and ante- rior lines distinct, impunctured, the former attaining the base ; basal lines double ; lateral edge much rounded, abi-uptly excurved [Vol. III. OF PHILADELPHIA. 95 at the posterior margin ; basal angles rectangular, acute ; base much narrower than the elytra : elytra with punctured striae, punctures small ; interstitial lines slightly convex; beneath dark piceous or blackish. The form of the body and the curvature of the thorax are very similar to those of F. unicolor Say, nevertheless it is a much smaller insect, the thoracic base is depressed and the posterior angles are acute, and the stria) of the elytra are more deeply im- pressed than in that insect. It was found on the Arkausa river near the Rocky Mountains. It belongs to the genus Pterostickus of Bonelli. [Belongs to Evarthrm. — Lec] ZABRUS Clairv. Z. AVIDUS. — Black ; feet rufous; base of the thorax and striae of the elytra punctured. Length seven-twentieths of an inch. Body deep black : labrum deep piceous : antennae and palpi rufous : thorax short and wide, with a few punctures before, and numerous ones on the posterior depressed margin ; dorsal line very distinct ; elytra punctured ; interstitial lines depressed, a little convex ; beneath black : venter deep piceous at tip : feet rufous. [An Amara of the division Liocncmis, afterwards described as A. confinis Dej. — Lec] [149] CALOSOMA Linn. Latr. I. C. OBSOLETA. — Brownish-black ; elytra reticulated and with three series of impressed bluish spots. Inhabits Arkansa. Body brownish black : mandibles rugose and convex on the superior surface: thorax obtusely and minutely rugose, impunc- tured ; region of the posterior angles indented ; an abbreviated impressed dorsal line ; posterior angles rounded, extended back- ward a little beyond the basal line : elytra reticulate ; longitudi- nal lines slightly impressed, not more dilated than the transverse ones, which are mostly continuous, their points of intersection marked by a puncture; three series of impressed bluish or viola- ceous obscure spots on each elytron ; lateral margin in a certain light very obscurely purplish. 1823.] 96 ACADEMY OF NATURAL SCIENCES Length seven-tentts of an inch. Found near the Rocky Mountains. [Afterwards described by Dejean as C. hixatum.-^Jj'EG.'] 2. C. LUXATA. — Brownish-black ; elytra reticulate ; head and thorax minutely punctured. Inhabits Arkansa. Mandibles flattened above, rugose, with oblique lines : head punctured : antennae, second joint half as long as the third : tho- rax minutely punctured, punctures larger and confluent on the lateral margin ; posterior angles rounded, extending backwards a little beyond the basal line ; an impressed longitudinal line : elytra suborbicular, reticulate ; longitudinal lines not more dila- ted or profoundly impressed than [150] the transverse ones, which are not continuous, the points of intersection not distinguished by a puncture ; the three punctured strise obsolete, their traces hard- ly discernible in a certain light and not difi'erently colored. Length more than three-fifths of an inch. This insect has the short, transverse thorax of Calosoma, biit the proportions which the joints of the antennae bear to each other are similar to those of many Carabi: the transverse lines are dislocated by the longitudinal ones. [Belongs to Calisfhenes : which however is not now adopted by many entomologists. — Lec] CARABUS Linn. Latr. C. EXTERNUS. — Winged, black, margined with purplish ; elytra with three series of obsolete punctures. Length one inch and three-twentieths. Body elongated, deep black : antennae brown at tip ; thorax punctured, margined with bluish-purple; lateral edge regularly curved to the base : dorsal and basal lines distinct ; basal angles obtusely rounded ; elytra striate ; striae well impressed, much nar- rower than the interstitial lines, and with conspicuous, definite punctures; interstitial lines convex, equal, the fourth, eighth, and twelfth each with a series of obsolete small punctures, which do not interrupt them ; exterior margin bluish-purple. A large species, brought from Arkansa by Mr. Thomas Nut- tall. It somewhat resembles C. syhosus, but is larger, the strias of the elytra are much more regular, exhibiting nothing of the gran- [Vol. III. OF PHILADELPHIA. 97 ulated appearance [151] of those of tliat insect, and the curve of the exterior edge of the thorax is reguhir, or without any ten- dency to excurvature near the base. [Belongs to Calosoma, and subsequently described as C. longi- penne Dej. — Lec] BEMBIDIUM Latr. 1. B. COXENDIX. — Greenish-brassy, beneath green ; tibia and anterior trochanters, testaceous ; thorax, basal line oblique each side. Length one-fourth of an inch. Body greenish-brassy, polished : labrum green : antennee dull green, covered with light brownish hair ; basal joint testaceous before and greenish behind : palpi greenish, hairy, testaceous on the inferior base : thorax with a green exterior margin ; exterior edge excurved at base ; dorsal line slightly impressed, narrow ] transverse basal line very distinct ; basal margin a little rugose, particularly near the angles ; angles acute : elytra with a green margin; strias with rather large punctures; beneath dark green: coxae tibiae, and knees beneath, testaceous. Var. a. Feet entirely pale rufous. 2, B. IN^QUALIS. — Bronzed ; elytra of unequal surface, and two impressed spots on each elytron. Length less than one-fourth of an inch. Body bronzed above ; beneath blackish-green : base of the an- tennae and of the palpi pale rufous : thorax, dorsal impressed line, and anterior and posterior lines very distinct : elytra, sur- face uneven, with two very obvious dilated impressed spots on the third interstitial line ; striae widely and profoundly [152] punctured, the fourth stria undulated : feet blackish-green, rufous at base. This is a very distinct species ; it occurred near Engineer Cantonment. OMOPHKON Latr. 0. TESSELATUS. — Pale, varied with green; elytra somewhat tessellate with green. Inhabits Missouri. Body rufous, punctured ; head green behind, between the eyes 1823.] 7 98 ACADEMY OF NATURAL SCIENCES a longitudinal and oblique dilated line united in the form of a W ; labrum white : thorax with a green disk and longitudinal impressed line : elytra with punctured striae, green ; margin, two undulated bands and tip, pale rufous; pectus and postpectus darker rufous : feet whitish. Length more than one-fourth of an inch. I observed this species in plenty on Elk-horn Creek. The elytra have a tessellated appearance in consequence of the un- dulations of the bands being subquadrate, particularly the two nearest to the disk. [Afterwards described by Dejean as 0. Lccontei. — Lec] COLYMBETES Clairv. C. VENUSTUS. — Reddish-yellow ; thorax at tip and base black ; elytra dusky olivaceous with a pale external margin, interrupted base and abbreviated subsutural line. Body reddish-yellow : vertex dusky: thorax, anterior [153] margin to the eyes on each side, and posterior margin as far as the middle of the base of each elytron, black : elytra dusky oli- vaceous or blackish ; a yellowish exterior margin attenuated to- wards the humerus, and a whitish external submargin composed of three somewhat oblique approximate lines, of which the inner one is abbreviated before the middle ; a dilated, subtriangular white line from the humerus to the middle of the base, where it abruptly terminates ; a subsutural white line from near the base is attenuated and terminated before the middle ; disk with two obsolete interrupted lines : venter each side dusky. Length one-third of an inch. Found many specimens in a pond near Bowyer Creek, Mis- souri. It is also an inhabitant of the Atlantic States. I think it probable that this is the Dytiscus interrogatus of Fabricius. [This was afterwards made the type of Copdotomufi Say ; it does not appear to differ from D. interrogatus. — Lec] HYDROPORUS Clairv. H. PARALLELUS. — Black; elytra lineate with yellowish. Inhabits Missouri. Body black : head before and a small obsolete spot on the ver- tex, rufous : antenae pale at base, dusky at tip : palpi pale, tip [Vol. in. OF PHILADELPHIA. 99 black, thorax varied vrith reddisli-yellow : elytra with several longitudinal reddish-yellow lines, the exterior and interior ones interrupted : feet pale testaceous. Length less than one-fifth of an inch. [154] This species, like many other species of this genus, varies in the number of visible lines of the elytra and in their being more or less interrupted, but the abbreviated lines into which they are sometimes interrupted do not form bands, and at least one line is continuous to near the tip, a character which distinguishes it from the following species. [Previously described as //. catascopium Say, Trans. Am. Phil. Soc. 2, 103, and subsequently as If. interruptus Say, ib., 4, 445.— Lec] 2. H. UNDULATUS. — Rufo-testaceous ; elytra blackish-oliva- ceous, literate with testaceous. Inhabits Upper Missouri. Dytiscus undidatus Melsh. Catal. Body rufo-testaceous ; thorax, anterior margin black on the middle, posterior margin black in the middle as far as opposite the middle of the base of each elytron : elytra blackish, an irre- gular' marginal spot extends from the humerus to nearly one- third of the length of the elytron, and obsoletely communicates at its dilated middle with a band composed of two or three longi- tudinal abbreviated lines, of which the inner one is subsutural ; a smaller, marginal, irregular literate band behind the middle, and an irregular spot at tip. Length more than three-twentieths of an inch. Found in a pond near Bowyer Creek, Upper JMissouri. It is not uncommon in Pennsylvania. P^EDERUS Fabr. P. BINOTATUS. — Reddish-yellow ; head, a part of each elytron and the tail, black ; feet pale. Body pale yellowish-red, with numerous very short [155] hairs ; punctured : head black, larger than the thorax : antennas and trophi pale ; thorax longitudinally subovate, punctures dense : elytra each with a large black spot on the exterior side towards the tip : abdomen, terminal segment and tail black : feet whitish. 1823.] 100 ACADEMY OP NATURAL SCIENCES Length three-twentieths of an inch. Found near the Missouri above the confluence of the Platte. It is also an inhabitant of the Eastern States. [I do not know this insect. Erichson, Staphyl. 645, supposes it to belong to Sunius. — Leg.] OXYTELUS Gravenh. 1. 0. PALLIPENNIS, — Testaceous ; head black ; tip of the cly- peus elevated and bidentate ; thorax wider than than long, with an impressed line. Body pale testaceous, punctured, with very short hairs : head black, punctures sparse before : eyes black, with a golden re- flection : clypeus at the middle of the tip, elevated, prominent and bidentated : antennae and carina at base, rufous pale : man- dibles porrected, piceous, bifid to the middle ; superior segment or tooth rather shorter than the other: palpi pale : thorax wider than long, reddish-brown with an impressed dorsal line : elytra dusky at tip and on the sutural edge : feet whitish. Length about seven-twentieths of an inch. On the banks of the Missouri below the confluence of the Platte river. [This and the three following belong to Bledius. — Leg.] 2. 0. ARMATUS. — Pale reddish-brown; head black; carina at base of the antennae piceous at tip. [156] Female. — Body light reddish-brown, punctured, a little hairy : head black, punctures obsolete ; an abbreviated, vertical carina over the anterior portion of the eye, terminating abruptly at the origin of the antennae, and piceous at tip ; anterior angles of the clypeus reflected : antennae and palpi pale rufous : mandibles piceous : thorax length and breadth subequal, with a longitudinal impressed line; punctures sparse ; edge blackish : elytra, punc- tures distinct, numerous ; sutural edge blackish : thighs testa- ceous. Length from one-fifth to one-fourth of an inch. Male. — Rather paler than the female; a tubercle between the eyes : thorax with a longitudinal impunctured, dorsal line : tergum darker at tip. Length one-fifth of an inch. [Vol. in. OF PHILADELPHIA. 101 3. 0. MELANOCEPHALUS. — Pale testaceous; head and post- pectus black ; suture dusky. Body pale testaceous, or whitish : head deep black : antennae and mouth pale testaceous : mandibles unarmed : elytra, suture blackish : postpectus black. Length nearly one-tenth of an inch. Yar. a. Abdomen reddish-brown. On the banks of the Missouri above the confluence of the Platte river. 4. 0. FASCIATUS. — Blackish j elytra pale yellowish ; abdomen reddish-yellow, obsoletely fasciate with dusky. Inhabits Missouri. Body blackish, punctured, hairy : head black, impunctured, covered with very minute granules : antennae and mouth testa- ceous ; mandibles piceous : thorax piceous-black ; rather large distinct punctures ; posterior edge rounded without angles, and distinct from the elytra: elytra, pale yellowish, dusky at the in- terior base and suture; numerous rather large distinct punctures; tip obtiisely rounded : beneath reddish-brown : feet rather paler : tergiun reddish ; segments each with a definite, dusky band at tip : venter, each segment with an obsolete blackish transverse line on the middle. Length less than three-twentieths of an inch. Found near Engineer Cantonment. ALEOCHARA Gravenh. A. BIMACULATA. — Black ; elytra each with an obsolete, yel- lowish, subsutural spot behind. A. himaculata Knoch in Melsheimer's Catalogue. Body black, slightly punctured, hairy : front each side exca^ vated from the insertion of the antennae to the mouth : palpi pale, maxillaries dusky above : thorax each side and angles regularly rounded, slightly hairy; two longitudinal, dilated, hardly im- pressed, punctured lines behind : scutel transversely triangular : elytra not covering half of the tergum, with very numerous, pros- trate hairs ; a large obsolete, yellowish, subsutural spot at the tip of each : feet dark piceous towards the tips. Length less than one-fifth of an inch. Found above Fort Osage, [158] 1823.] 102 ACADEMY OF NATURAL SCIENCES TACHINUS Gravenh. T. ATRICAUDATIJS. — Eufous, impunctured ; head and middle of the antennas and postpectus black ; elytra behind, and tip of the abdomen, dark blue. Body yellowish-rufous, impunctured, with few hairs ; polished : head black : labrum and mouth testaceous : antennae testaceous ; from the fifth to the tenth joints inclusive, black : thorax with a few indistinct hairs : elytra with a large deep blue spot on each> the anterior edge of which curves from behind the humerus, to behind the middle of the sutural margin ; a subsutural series of remote punctures, and a series exterior to the middle : postpectus black, with large, slightly impressed punctures : feet pale testa- ceous : abdomen with a few hairs, and distant, larger black ones on the posterior margins of the segments; terminal and anal seg- ments deep blue. Length nearly one-fifth of an inch. Found on the Konza river. [Belongs to Bohtohms; previously described as T. cinctus Grrav. — ^Lec] ANTHOPHAGUS Gravenh. A. brunneus. — Eeddish-brown ; feet and abdomen paler ; an impressed thoracic line and dot at base. Body reddish-brown, punctured, with numerous short hairs : head inequal, indented between the eyes and between the anten- nae : antennae, palpi, and feet testaceous : mandibles piceous at tip: thorax [159] densely punctured, subrotund ; posterior an- gles rectangular ; a dorsal impressed line, terminated on the pos- terior submargin by an impressed dot : elytra densely punctured, posterior lateral angles rounded, sutural tip acute : abdomen pale reddish-brown, segments margined round with dusky, a dusky spot near the tip of the tergum. Length less than one-fourth of an inch. On the banks of the Missouri above the confluence of the Platte river. [Vol. III. OF Philadelphia. 103 BUPRESTIS Linn Latr. 1. B. CONFLUENTA. — [Ante, 1, 60.] 2. B. LATERALIS. — Black ; head and thorax dull brassy, the former canaliculate, the latter with a posterior dorsal and anterior lateral indentation. Inhabits Missouri. Body elongated, black, scabrous : head dull brassy, superficially punctured ; a profoundly impressed line abbreviated before : an- tennae blackish : thorax dull brassy, somewhat scabrous ; a round indented spot behind the middle, and an oblique profound oblong one each side, at the anterior termination of which the thoracic edge is dilated ; basal edge sinuous : scutel black, subtriangnlar : elytra scabrous, entire, slightly indented at base : tail rounded. Length one-fifth of an inch. Distinguishable by the dilatation of the lateral thoracic edge. [Belongs to Agrilus. — Leg.] 3. B. atropurpureus. — Black, slightly tinged with bronze or purplish ; elytra serrate and mucronate. Inhabits Arkansa. Body punctured : antennae black : labrum piceous : thorax with elevated obtuse punctures and slightly impressed dilated ones each side ; an indented spot on the middle of the basal margin : elytra scabrous with minute reflected and depressed points; lateral edge regularly serrated ; tip mucronate : beneath dark purplish. Length less than three-tenths of an inch. Taken near the Rocky Mountains. The color to the eye is black, but upon attentive observation it will be perceived to be tinged with purplish. [Belongs to Melanophila. — Lec] [160] 4. B. 6-GUTTATA. — Black-brassy; elytra each with three in- dented cupreous spots. Inhabits the United States. Buprcstis 4:-maculata Melsh. Catal. Body blackish with a strong brassy tinge : head punctured ; a profound sinus each side for the reception of the antennae ; tip emarginate : labrum green : antennae brassy-green : thorax short, transverse, densely punctured ; not wider behind, angles rounded : 1823.] 104 ACADEMY OF NATURAL SCIENCES seutel triangular, green : elytra witli three or four elevated longi- tudinal lines on each, and three impressed reddish-cupi'eous spots placed one at the base, one rather before the middle, and the third behind the middle ; edge minutely serrate. Length seven-twentieths of an inch. I have been under the necessity of applying another name to this insect, as that given by Mr. Melsheimer is preoccupied by a different species. We found this during our expedition to the Missouri, and it is also an inhabitant of the Atlantic States. [Belongs to Ghrysohothris. — Lec] 5. B. GiBBiCOLLis. — Black ; elytra each with two large yel- low spots. Inhabits Arkansa. Body black, with a slight violaceous tinge, and with very nu- merous very short hairs ; punctured : thorax gibbous, arising into a very obtuse obsolete tubercle each side above ; covered with dense hair ; posterior edge rectilinear, angles rounded : seutel orbicular : elytra punctured, destitute of striae ; posterior edge finely serrated ; tip entire; a very large [162] elongated spot extending from the base to the middle, and a smaller orbicular one towards the tip : venter violaceous. Length less than three-tenths of an inch. A very pretty insect; but a single specimen was procured. Can this be the B. volvulus Fab. ? [A species of Ftosima subsequently described as P. luctuosa Gory. — Lec] 6. B. GRANULATA. — Grreen, granulated ; elytra with an ele- vated line, and scrrodentate at tip. Inhabits Missouri. Body cylindrical, olive-green, granulated : head punctured, with a profound sinus each side for the reception of the antennae ; tip rounded : eyes whitish, with a black oblong moveable pupil : thorax with an oblique indented line each side, and a longitudinal dorsal one ; basal edge sinuated ; seutel transversely elongated, with an impressed transverse line behind : elytra scabrous or granulated, without strias or punctures ; an elevated longitudinal line, and an indented large spot at base ; tip serrodentate. Length two-fifths of an inch nearly. [Belongs to Agrilus. — Lec] [Vol. III. OF PHILADELPHIA. 105 7. B. viRiDicoRNis. — Head and thorax red-coppery ; antennae green ; elytra obscure, entire. Inhabits Missouri. Body somewhat depressed : head reticulate, red-coppery : eyes rather large ; antennae green : thorax transversely indented each side behind the middle ; red-cupreous, reticulated ; posterior edge rectilinear : scutel triangular : elytra obscure or slightly brassy, slightly rugose, destitute of striae, rounded at tip, entire or obsoletely serrated : beneath dark brassy, brilliant ; tail rounded, entire. Length rather more than one-fifth of an inch. [Belongs to Anthaxia. — Lec] [163] 8. B. GEMiNATA. — Greenish, scabrous; thorax sub-inequal; elytra entire, indented at base. Inhabits Missouri. Buprestis viridis Melsh. Catal. Body greenish or dull cupreous, scabrous : head densely punc- tured ; an indented line on the vertex : antennae blackish-green : thorax sub-inequal; a double obsolete indented spot placed longi- tudinally on the back, and a lateral oblique one ; a carinate line at base near the posterior angles, which are acute ; posterior edge sinuate ; surface with numerous, somewhat irregular, transverse slightly elevated, abbreviated, confluent lines : elytra scabrous, greenish, tinged with violaceous. Length more than one-fi'th of an inch. The B. viridis of Melsheimer is the same with this or a mere variety. I have been under the necessity of changing the name, his being already occupied. [A species of Agj-ilus. — Lec] 9. B. DIVARICATA. — Greenish-cnpreous above, beneath cu- preous J elytra attenuated and divergent at tip. Inhabits the United States. Head numerously and confluently punctured : mandibles black : eyes pale yellow, or brownish, with a black orbit, oval : thorax confluently punctured, subinequal, indented before the scutel : scutel orbicular, disk impressed ; elytra striate, confluently punc- tured, and with some elevated blackish, abbreviated lines : tips narrowed, elongated, divergent ; at the termination truncate, and 1823.] W6 ACADEMY OP NATURAL SCIENCES submucronate on [164] the inner side; beneath,. excepting the venter, canaliculate. Length seven-tenths of an inch. Remarkable by the divarication of the tip of the elytra. It very much resembles B. hirida Fab., in general appearance. [Belongs to Dkerca. — Lec] 10. B. LONGIPES. — Black; immaculate, surface granulated; elytra terminating in an abrupt short point. Inhabits the United States. Body deep black, immaculate ; thorax with an obsolete in- dented line : scutel small, subangulated : elytra finely granulated : an obtuse, obsolete, elevated line from the shoulder to the tip ; tip abruptly terminated by a small spine in the centre : beneath polished, slightly tinged with violaceous : tarsi of the interme- diate and posterior feet elongated, as long or longer than the tibia; first joint equal to the three following ones conjunctly; fourth joint bilobate, very short. Length half an inch nearly. Found in Pennsylvania and the Western States. [A species of MelanophUa, closely allied to M. atropurpurea (ante p. 103,) and considered by some as the European il/. ap- pendiculaia. — Leg.] 11. B. CYANIPES. — Elytra at tip narrowed, entire and divari- cated ; scutel transverse. Inhabits Missouri. Body dark cupreous, tinged with greenish : head, before the antennae, green : antennae dark green : thorax confluently punc- tured : scutel large, angulated each side behind, and excavated in the middle : elytra with darker abbreviated, elevated irregular lines ; tips very slightly recurved, divaricated, entire or obsoletely [165] truncate: beneath bright cupreous, not canaliculate; tail deeply emarginate : tarsi blue. Length two-fifths of an inch. This specimen was brought from the Missouri by Mr. Thomas Nuttall, It resembles the divaricata in the manner of termi- nating of the elytra. [Belongs to Poecilonota. — Lec] 12. B. CAMPESTRis. [Ante 1, 60.] [Yol. III. OF PHILADELPHIA. 107 MELASIS Oliv. 1. M. NiGRiCORNis. — Black, cylindrical, punctured; thorax with indented transverse and longitudinal lines. Inhabits Missouri Territory. Body deep black, opaque, immaculate, scabrous : [166] head with an impressed longitudinal line : clypeus with a very pro- found sinus over the insertion of the antennae, before which it is triangular : antennfe, first and second joints simple ; remaining ones dilated cordate, the inner lobe more prominent; terminal joint simple, oval, acute : palpi, terminal joint, oval : thorax con- vex, transversely quadrate, not naiTowed before ; a longitudinal indented line ; two abbreviated somewhat oblique ones at base, and a transverse one on each side of the middle; anterior margin obsoletely tinged with reddish ; an impressed point each side of the middle of the posterior margin : elytra striate, striae acute ; interstitial lines convex, densely punctured : tibia piceous : tarsi rufous ; the penultimate one a little dilated, hairy beneath, and extended beneath the base of the terminal one, but not bilobate. Length more than one-fifth of an inch. •Of this species I found but a single specimen. It seems to approach nearest to Fabricius's description of Elater lacunosus, but it cannot be referred to that genus, as it is totally destitute of the pectoral spine and recipient cavity. The position of the head with respect to the thorax, is precisely as in Bujyrestis. [A species of Hylocliares. — Leg.] 2. M. RUFICORNIS. — Black; antennae, feet, and base of the elytra rufous. Inhabits Arkansa. Body cylindrical, deep brownish-black, with very short hairs ; punctures very dense, appearing granulated : antennae robust, sub fusiform; joints cordate, rufous; inserted into a very profound sinus of the [167] clypeus, which is somewhat dilated before: palpi yellowish : thorax with an impressed longitudinal line : lateral edges rectilinear from the middle to the tip of the poste- rior angles : scutel black : elytra striate punctured ; basal half rufous : feet rufous : thighs dark piceous : tarsi, penultimate joint a little dilated, and extended beneath the base of the terminal one, but not bilobate. 1823.] 108 ACADEMY OP NATURAL SCIENCES Length more than one-fourth of an inch. A very distinct species frona the preceding. Mr. Nuttall brought two specimens from the Arkansa. [A species of Tharojis. — Lec] ELATER Lin. 1. E. AREOLATUS. — Rufo-testaceous j head, scutel and elytral band black. Inhabits Mississippi. Body rufo-testaceous, hairy : head black : clypeus very short, obtusely rounded : antennae longer than the thorax : thorax short, somewhat transverse : scutel black : elytra striate, punctured ; region of the scutel and dilated band on the middle black : feet pale. Length less than one-fifth of an inch. 2. E. DORSALis. — Rufous ; a thoracic fusiform line, two spots and a band on the elytra, black. Inhabits the United States. Body rufous, hairy, punctured : head deep black : clypeus pro- minent, rounded : antennae pale testaceous : thorax longitudi- nally oblong ; a dilated, fusiform black dorsal line ; posterior angles prominent: [168] scutel black : elytra striate punctured; an oblong spot before the middle of each, and a common band behind the middle dilated near the suture, black : feet pale. Length one-fifth of an inch. [I consider this as a 3Ionocrepidms without tarsal lobes. Ger- mar and Lacordaire place it in Cryptohypnus. — Leg.] 3. E. BELLUS. — Black; thorax with a rufous line; elytra ru- fous varied with black. Inhabits the United States. Elater hellus Knoch in Melsh. Catal. Body black, hairy, punctured : clypeus rounded before : an- tennae pale testaceous : thorax with a longitudinal vitta and pos- terior angles rufous ; carinated ; elytra rufous, varied with black abbreviated lines; tip black, enclosing a rufous spot ; feet whitish. Length less than three-twentieths of an inch. Var. a. Anterior thoracic angles rufous. [Vol. III. OF PHILADELPHIA. 109 This insect is not uncommon in the Atlantic States^ and is also found west of the Alleghany Mountains. [A true Monocrepidius. — Lec] 4. E. RECTICOLLIS. — Pale testaceous, hairy ; head blackish ', lateral thoracic edge rectilinear. Inhabits Missouri. Body pale testaceous, with short dense hair : head blaekish- piceous : antennoe pale : clypeus rounded : thorax lateral edge rectilinear from near the anterior angles to the tip of the poste- rior ones : elytra profoundly striate, punctured : feet whitish. Length one-fifth of an inch. [Belongs to Adrastus. — Lec] 5. E. OBESUS. — Brown, with yellow hair ; thorax convex; body short, somewhat dilated. Inhabits Missouri. Body reddish-brown, with yellowish hair and [169] very minute punctures : head and thorax with polished yellow hair, and numerous exceedingly minute punctures ; posterior angles prominent, excurved : scutel rounded hairy : elytra with scattered hairs, and obsoletely punctured striae ; interstitial spaces slightly convex and with minute punctures : feet rufous. Length two-fifths of an inch. [LTnknown to me; it is afterwards (Trans. Am. Phil. Soc.^6, 168,) stated to have the ungues strongly toothed. CardiopTiori with this character are known, but none have yet been found in the United States. 6. E. ERYTROPUS — Keddish -brown, or blackish, punctured, hairy ; posterior thoracic angles carinated ; interstitial elytral lines punctured. Inhabits Missouri and Pennsylvania. Elater erytropus Melsheimer's Catalogue. Body reddish-brown, or blackish, with numerous short prostrate yellow hairs ; punctured : head with large, profound, approxi- mated punctures : antennae rufous : clypeus rounded, entire : thorax with large confluent punctures on each side, and small more distant ones on the posterior disk, much smaller than those of the head ; posterior angles not excurved, but nearly rectili- near with the posterior half of the lateral edge of the thorax, 1823.] 110 ACADEMY OF NATURAL SCIENCES and ciirinated above j posterior edge slightly bidentate in the middle : scutel "rounded at base : elytra with punctured striae, interstitial lines punctured. Length three-tenths of an inch. A species not distinguished by any remarkable peculiarity. [Belongs to Cardiophorus. — Lec] 7. E. CONVEXA. — Thorax black, hairy; posterior edge of the thorax with a fissure each side, and tridentate [170] in the mid- dle ; elytra reddish-brown ; feet rufous. Inhabits Missouri. Head and thorax not visibly punctured to an ordinary magni- fier ; covered with dense prostrate yellow hair : antennae rufous ; clypeus rounded : thorax convex ; posterior angles very short, carinated only on the exterior edge ; posterior edge tridentate in the middle, and with a fissure on each side near the angle ; scutel hairy, cordate, emargined at base : elytra reddish-brown, some- what hairy, with punctured striae ; interstitial lines impunctured : beneath reddish-brown, covered with prostrate hair : feet yellow- ish-rufous. Length more than three -tenths of an inch. Var. a. Black ; feet dark rufous. Length less than three- tenths of an inch. The interstitial lines of the elytra are totally destitute of punc- tures, at least none are perceptible even with an ordinary magni- fier; the thorax is very convex, and equally impunctured, and marked by four fissures in the posterior edge. \ [Unknown to me ; probably a Cardiophorus. — Leg.] 8. E. TRIANGULARIS. — Clypeus with a very profound sinus each side, for the reception of the antennae; elytra not striate. Inhabits Missouri. Body black, slightly hairy, minutely punctured : head with crowded minute punctures ; a very profound sinus each side over the insertion of the antennae, anterior to which the clypeus is dilated ; triangular and truncated at tip : antennae dark piceous ; [171] half as long as the body; first joint cylindrical; second, small piceous ; third as long as the fourth and fifth conjointly : thorax convex ; punctures very minute and numerous ; lateral edges from near the anterior angles to the posterior ones, rectili- [Vol. III. OP PHILADELPHIA. Ill near ; elytra not distinctly striated, but irregularly punctured : feet pale rufous. Length rather more than three-twentieths of an inch, A small insect, remarkable for the very profound sinuses over the insertion of the antennae. It varies in having the elytra striated, and dull rufous at the base; the third joint of the an- tennae also is not so long as the two following ones together. [Belongs to Microrliagus. — Leg.] 9. E. MANCUS. — Clypeus truncated ; body punctured ; thorax with an impressed line behind the middle ; posterior angles slightly excurved. Inhabits Missouri. Body black, punctured, with short hair : head with large, pro- found dense punctures : clypeus elevated, emarginate each side near the antennae, and truncated before : antennaj and palpi rufous : thorax with an impressed line behind the middle ; punc- tures numerous, profound, equal to those of the head, but not so dense ; posterior angles prominent, very slightly excurved, carinate above ; posterior edge slightly bidentate near the mid- dle ; an elevated, abbreviated line on the posterior margin near the lateral carina : scutel entire at base : elytra punctures of the striae oblong and approximate ; interstitial lines with minute punctures furnishing hairs : feet rufous. [172] Length seven-twentieths of an inch. Var. a. Reddish-brown ; thorax with a paler anterior margin. An obscurely characterized species, equal in size to convexa and mendica, but differing from them, besides other characters, in having the lateral elevated line on the posterior margin, and from the former by the conspicuously punctured and less convex thorax. [A species of Agriotes, afterwards described as A. truncatus and A. striatulus Mels. — Leg.] 10. E. BASILARIS. — Deep black; clypeus emarginate; first and second joints of the antennae and feet pale. Inhabits Missouri. Body deep black, hairy, cylindrical, polished, punctured : head subinequal : clypeus broad and subemarginate at tip : antennae, first and second joints pale rufous; thorax convex, with minute 1823.] 112 ACADEMY OF NATURAL SCIENCES equally distributed punctures, much more distant than the length of their diameters ; lateral edge rectilinear from near the anterior angles to the tip of the posterior angles, which are piceous and rather short : scutel oval : elytra striate, the striae punctured : feet pale rufous. Length less than one-fifth of an inch. [Belongs to Limonius. — Lec] 11. E. AURiPiLis. — Above with dense golden hair; clypeus emarginate ; antennae black. Inhabits Arkansa. Head covered with golden hair : clypeus emarginate : antennae black; basal joint rufous : thorax convex, rather narrower at the base, covered with golden hair ; a dorsal indented line ; posterior angles [173] very short, not exeurved, but complying with the curve of the lateral edge : elytra less densely covered with golden hair, excepting at the base ; with punctured striae : beneath black, covered with very short prostrate somewhat silvery hair : feet dull rufous. Length two-fifths of an inch. I have seen but a single specimen, which was brought from the Arkansa by Mr. Thomas Nuttall. The hair is much more yellow and less dense than that of E. pennatus Fab. [Also a Limonius. — Lec] 12. E. ABBREVIATA. — Black, hairy, short; thorax convex, with an impressed longitudinal line ; clypeus rounded. Inhabits Missouri. Body short, thick, punctured, hairy : head with profound but dilated punctures; clypeus regularly rounded at tip, and not emarginate each side : antennze black, basal joint piceous : thorax convex ; an impressed longitudinal line from base to tip ; punctures numerous, profound, small; posterior angles slightly exeurved, carinated; posterior margin with a slight carina near the poste- rior angle : elytra with profound striae not perceptibly punctured ; interstitial lines hardly punctured : feet testaceous. Length less than one-fourth of an inch. A short, dilated species ; the impressed line of the thorax ex- tends the whole length of that part of the body ; the antennae are black. [Vol. III. OF PHILADELPHIA. 118 [A species ot Cn/ptohypnus, afterwards described as C. sila- eeipes Germ. — Leg.] 13. E. BISECTUS. — Testaceous; head, thoracic line, and suture black. Inhabits Missouri. [174] Body densely hairy ; punctured; rufo-testaceous : head black; clypeus prominent ; rounded : antennae pale : thorax with a longitudinal, dorsal, black line ; posterior angles prominent, ex- curved : scutel black, convex, rounded: elytra, striae indented; punctures rounded ; suture with a common black line, not attain- ing the tip, dilated at the scutel and at its extremity : postpectus and venter black : feet whitish. Length one-fourth of an inch. [A Monocrepidius, unknown to me. — Lec] 14. E. CORTICINUS. — Reddish-brown, hairy, punctured ; cly- peus prominent; rounded ; lateral thoracic edge rectilinear. Inhabits the United Seates. Elater corticinus Knoeh in Melsh. Catal. Body reddish-brown, hairy, punctured : clypeus prominent ; rounded, or very obtusely subangulated before, and each side : antennae longer than the thorax : thorax, hair each side behind the middle prostrate inwards towards the middle ; lateral edge perfectly rectilinear from the anterior tip to the tip of the poste- rior angles ; basal margin with an obsolete indented line : elytra striate, punctured : beneath covered with short, prostrate hair : feet rather paler. Length about three-fifths of an inch. Remarkable for the perfectly rectilinear lateral edges of the thorax, and by having the hair of the posterior part of the tho- rax inclining inwards from each side towards the middle of the width. [A species of Cratonychus. — Leg.] 15. E. SEMiviTTATUS. — Piceous-black ; thorax obsoletely testaceous each side : elytra whitish, with a dusky suture and abbreviated line. [175] Inhabits Missouri. Body hairy, punctured, dark piceous or blackish brown : tho- rax with an impressed dorsal line ; lateral margin as far as be- 1823.] 8 114 ACADEMY OF NATURAL SCIENCES liind the middle, obsoletely testaceous ; posterior angles excurved : elytra whitisli ; suture and line from the humerus to the middle of the disk, reddish-brown obscure : beneath piceous : feet paler. Length less than two-fifths of an inch. This species, at first sight, resembles E. ni/-ox/«ia that the testacea of Linne does to the tomentosa. 8. L. LTNEOLA. — Black ; elytra punctured ; suture, margin and vitta, black. Inhabits the United States. Lcptura lincola Knoch in Melsli. Catal. Body black, sericeous : antennae, excepting the three basal joints, annulate, with black and yellowish : trophi yellowish : thorax, posterior angles prominent, acute : elytra punctured ; suture, exterior margin, tip, and an abbreviated vitta, black ; tip truncato-emarginate : feet pale testaceous : tarsi blackish : abdo- men dark reddish-brown, sericeous. Length two-fifths to nine-twentieths of an inch. This is an inhabitant of various parts of the United States. It is found in Pennsylvania,, and on the Mississippi, though I have not observed it to be common any where. 9. L. RUFICOLLIS. — Black ; thorax rufous ; labrum pale. Inhabits Kentucky. L. coUaris Melsh. Catal. Body black, with very short hairs : antennae, basal joint dull rufous : labrum and mouth pale rufous : thorax rufous, subglo- bose in the middle, and with a flattened, anterior, and posterior margin : elytra not tapering, confluently punctured, [422] black, entire at tip : beneath sericeous : feet varied with testaceous. Length less than three-tenths of an inch. In the distribution of colors it approaches L. tlioracica Fab., but is a much smaller species. It is also very different from the col- laris Linn, of Europe, in being smaller and of a more slender form. RHAGIUM Fabr. 1. R. TRiviTTATUM. — Black J elytra with black suture, yel- low vitta, black central line, and rufous margin. Inhabits Mississippi. Head black : clypeus, mouth and antennae rufous : thorax uneven, very little narrowed befoi'e ; an anterior and posterior impressed band, and a dorsal, impressed line : scutel black : ely- tra hardly emarginated; humerus prominent; suture black, 1824.] 200 ACADEMY OF NATURAL SCIENCES broader near the base ; a broad, yellowish vitta hardly reaching the tip ; a black line from near the base separates the vitta from the rufous margin : body, beneath black, with golden pubescence ; feet and abdomen rufous. Length seven-tenths of an inch. The body is sometimes rufous. In the disposition of colors on its elytra, this species probably bears some resemblance to R. cur- sor. It is certainly generically distinct from R. Imcatum, which [423] is the only true Rhagivm of this country that I have seen, though it is highly probable that there is another species. [Belongs to Toxotus. — Leg.] 2. K. CYANIPENNE. — Black ; antennae and feet testaceous ; elytra blue. Inhabits the United States. Body black, tinged with cupreous, punctured; head densely punctured ; a longitudinal, obsolete, impressed line : antennae rather shorter than the body, testaceous : trophi piceous-yellow : thorax impunctured ; an obtuse tubercle each side : scutel black : elytra violaceous-blue ; punctures numerous, small, profound; tip truncate ; humerus rather prominent : feet testaceous. Length two-fifths of an inch nearly. A rare insect. I obtained a specimen several years since near Philadelphia, and recently Mr. Nuttall presented me with a speci- men which he captured during his botanical expedition to the Arkansa river. In form of body, it very much resembles Lepturd collaris and L. virginea, as figured by Olivier, to which genus I would have referred it, but for the small thoracic tubercles. [The type of Gaurotes Leo. Journ. Acad. Nat. Sc. 2d ser. 1, 325. Synonyms are Pac^yto Servillei Serv.; P. /owe Newman; P. Leonardi Hald. — Leg.] CLYTUS Fab. Latr. 1. C. HAMATUS.— [Ante 1, 118.] [424] 2. C. CAPREA.— [Ante 1, 120.] [425] 3. C. SUPERNOTATUS. — Reddish-brown ; each elytron with a large white spot behind on a larger black one. Inhabits Missouri. [Vol. III. OF Philadelphia. 201 Body cylindrical, reddish brown, punctured, partially covered by very short, prostrate hair : head blackish : antennae reddish- brown, shorter than the body : thorax in the middle blackish and [426] more prominent: elytra entire; each elytron with an ele- vated obtuse tubercle near the scutel : a black, longitudinal spot from before the middle, where it is margined with a whit- ish line, to near the tip ; before its posterior termination it is in- terrupted by a large white spot. Length one-fourth of an inch. Found by Mr. Thomas Nuttall on the Missouri. [The type of the Lamioid genus Psenocerus Lcc. Journ. Acad. Nat. Sc. Phila. 2d ser. 2, 158, but incorrectly considered by me as identical with Callidium jnni 01., which is really a species of EuAerces Lee. — Leg.] STENOCORUS. 1. S. LONGIPES. — Black; thorax cylindrical, mutic, rufous; thighs clavate ; elytra bidentate. Inhabits Missouri Territory. Body elongated, black, punctured, subglabrous : head between the antennae concave : antennae longer than the body : thorax rufo-sanguineous, cylindrical, slightly dilated into a very obtuse tubercle each side behind the middle ; punctures obsolete : scu- tel impunct'ired : elytra with large, rounded, deeply impressed, numerous punctures ; apex truncato-sinuate, bidentate : thighs clavate ; posterior ones elongated : postpectus and abdomen cov- ered with dense, short, incumbent, cinereous hair. Length five-sixteenths of an inch. Found at Fort Kennedy, on Barek Creek, Missouri Territory. It is an elongated insect, resembling a Necydalis. The posterior thighs are much elongated, and, like the others, are clavated at tip. [Belongs to RJiopalophora : failing to recognize the genus, I described it as Tinopus. — Lec.^ 2. S. MUCRONATUS. — Brown, with cinereous hair; antennae three or four spined ; thighs mucronate ; elytra bidentate. Inhabits the United States. Stcnocorus marylandicus Melsh. Catal. 1824.] 202 ACADEM? OF NATURAL SCIENCES Body reddish-brown, partially covered with short, prostrate* cinereous hair, inequally distributed : trophi pale rufous : man- dibles black at tip : antennas longer than the body ; third, fourth, fifth and sixth joints terminated each by a spine, the first one largest, two-thirds the length of the next joint : thoi'ax with two tubercles before the middle, two longitudinal ones at base, and a longitudinal line, glabrous : scutel white, with dense hair, divided into two lobes : elytra punctured ; hair so disposed as to give the surfiice an irregularly maculated appearance; tip bispinose ; in- termediate and posterior thighs bimucronate ; the inner spine longest. Length seven-twentieths of an inch. This species is not the *S'. maryhuuUcus of Fabr., as described and figured by Olivier, which is a much larger and more dilated insect; the thighs not mucronate, and the joints of the antennae spinous to the tip. It is, perhaps, more closely related to S. spinicornis Fab., but that insect is described as having the joints of its antennsB bispinous at tip. It is a common insect in many sections of the United States and is by no means rare in Pennsylvania; [428] we obtained specimens on the Missouri, Platte, and Arkansa rivers. [Belongs to Elapliidion. — Lec] MOLORCHUS Fabr. M. BIMACULATUS. — Black, hairy; elytra testaceous on the disk. Inhabits the United States. Molorchus himaculatus Knoch in Melsh. Catal. Antennae, palpi and feet rufous : thighs clavate : elytra testa- ceous ; basal, exterior, and posterior margins black. Length nearly one-fourth of an inch. The feet vary in being sometimes fuscous. DONACIA. D. ^QUALIS. — Brassy, with two dilated, indented, subsutural spots on the elytra, and an indented, humeral line; two elevated lines between the eyes. Inhabits Missouri. Body aeneous, polished, punctured, glabrous : head with short, [Vol. III. OF PHILADELPHIA. 203 cinereous pubescence ; an obsolete, indented line ; two elevated tubercles between the eyes, extending in a depressed ridge to the base of the antennae, where it is slightly more elevated : eyes black : antennas clothed with cinereous pubescence ; second and third joints equal : palpi and mandibles black : thorax densely punctured ; punctures sometimes confluent ; a longitudinal, [429] indented line ; a lateral, dilated, hardly elevated tubercle before the middle : scutel minutely punctured and rugulose : elytra with regular series of punctures ; surface slightly rugulose ; two subsutural, dilated, obsolete, indented spots near the middle, and a subhumeral, impressed, dilated line at base : beneath argente- ous-pruinose : feet cupreous, pubescent ; a robust spine beneath the posterior thighs near the tip. Length rather less than seven-twentieths of an inch. Var. a. Body above cupreous, polished. Found near Engineer Cantonment. LEMA Fabr. 1. L. TRiviTTATA. — Rufous ; elytra pale ; suture and margi- nal vitta of the elytra black. Inhabits the United States. Crioceris trivittata Knoch in Melsh. Catal. Body rufous, impunctured : antennae black; first joint rufous : thorax contracted each side on the middle ; two black spots above, placed one on each side rather before the middle ; some- times obsolete : scutel black : elytra pale yellow ; suture and ex- tierior submarginal line black ; punctures arranged in series : tibia, at tip, and tarsi, black. Length less than three-tenths of an inch. Var. a. Thorax entirely rufous, immaculate. [430] I obtained specimens of this species from the vicinity of the Eocky Mountains. [This is L. trilineata 01. — Lec] 2. L. COLLARIS. — Black; thorax rufous; elytra green, striate with punctures. Inhabits Missouri. Body black : head rugose, with an impressed, longitudinal line ; a slight tubercle above each antenna : thorax bright rufous, impunctured ; contracted each side behind the middle, and with 1824.] 204 ACADEMY OF NATURAL SCIENCES an impressed, transverse line near the base above : scutel minute : elytra bright bluish-green, with nine series of longitudinal punc- tures : beneath black, polished, impunctured. Length more than one-fifth of an inch. Found on the Tradescantia virginica. ORSODACNA Latr. 0. viTTATA. — Black, punctured; elytra pale testaceous; suture and outer margin black ; feet rufous. Inhabits Missouri. Body black, punctured : basal joints of the antennse, labrum and palpi obscure reddish-yellow : thorax with dilated, confluent punctures : elytra with dilated, confluent, dense punctures, pale yellowish-white ; suture and exterior margin black : feet pale rufous : tarsi dusky. Length nearly one-fourth of an inch. Found in Missouri. [431] HISPA Linn. Latr. 1. H. LATERALIS. — Black ; thorax, each side, and humerus yellowish. Inhabits Illinois and Missouri. Body black, punctured : head impunctured, rugose above between the eyes : front with a prominent tubercle beneath the antennse : antennae more robust towards the tip : thorax with a dilated, reddish-yellow margin confluent before : pectus yellow- ish ; each side behind black : postpectus posterior to the inter- mediate feet, impunctured, polished: feet punctured; anterior thighs annulate, with yellowish at base ; intermediate and poste- rior ones with a large yellowish spot near the base : elytra serrate, each with three double and one quadruple series of large, rounded, profoundly impressed punctures, separated by three elevated lines, and a common sutural one ; a humeral, reddish-yellow spot attenuated behind, and terminated over the origin of the poste- rior feet : abdomen impunctured, polished. Length three-tenths of an inch. Obtained on the bank of the Mississippi, above the confluence of the Ohio river, and also near the Rocky Mountains. It is destitute of the frontal dot of humeralis, but is probably more [Vol. III. OF 1?HILADELPHIA. . 205 closely allied to san/juinicolHs, and may prove to be scaptdaris Oliv., [432] the description of which I have not seen. [Belongs to AnopUtis Kirby, and is Hispa scaptdaris 01. — LecJ 2. H. PALLIDA. — Yellowish-white ; elytra with punctured striae, elevated lines, and blackish, linear spots towards the tip. Inhabits the United States. Body pale testaceous, densely punctured : head with a longi- tudinal, impressed line, and indented point each side near the eyes : thorax quadrilineate, with black : elytra serrate ; pach elytron with three obtuse elevated lines, and a common one ; a blackish spot before the tip of the common line, one or two black spots behind the middle of the second line, and one before the middle ; two upon the next line, of which one is upon the middle of it ; two upon the next line, and two corresponding- ones upon the lateral edge ; between each two of the elevated lines are double series of profoundly impressed, large, transverse punctures : feet pale testaceous : beneath black or pale yellowish, varied with black : venter black or pale yellow, with four series of brown spots. Length about three-twentieths of an inch. [Appears to be Hispa rosea Weber. — Lec] 3. H, OBSOLETA. — Blackish ; thorax with punctured striae, elevated lines, and obsolete, yellowish spots. Inhabits the United States. Head dull rufous, black at base, and with a black line im- pressed in the middle : antennae black : thorax dull yellowish, with four equidistant [433] black lines : elytra black, serrate, each with three elevated lines, and a common sutural one, sepa- rated by double series of large, profoundly impressed, transverse punctures ; several small dull yellowish or rufous spots on the elevated lines, (placed similarly to the black elytral spots of the preceding species) and a larger spot at tip ; beneath black : feet pale testaceous. Length three-twentieths of an inch. Very similar to the preceding species, than which it is more common ; as in that insect the spots on each elytron are arranged in two oblique bands, of whict the anterior one is much more 1824.] 206 . ACADEMY OF NATURAL SCIENCES oblique than the posterior one ; but as several of these spots are often obsolete or wanting, the bands are not alway to be traced. [This is H. insequalis Weber ; H. Jlavipes Germ, is a synonym. — Leg.] 4. H. CYANEA. — Bluish-violaceous ; beneath black ; vertex ru- gose. Inhabits Missouri. Body above bluish-violaceous : head dusky : vertex with three longitudinal grooves, which attain the base of the antennae: an- tennae black : thorax with confluent, dilated, excavated punctures j elytra with regular series of large, dilated, punctures : interstitial lines slightly elevated ; serratures of the margin and tip obso- lete ; beneath black. Length less than one-fourth of an inch ; male much smaller. 5. H. coLLARis. — Thorax red; elytra blue; beneath black. [434] Inhabits Arkansa. Head black : antennae, five terminal joints clothed with minute, cinereous hairs : thorax bright rufous, indented on the middle of the base ; punctures much dilated, profound : elytra blue, with regular series of large, dilated punctures ; interstitial lirjes slightly elevated; edge distinctly serrated; beneath black. Length less than one-fourth of an inch. I found but a single specimen near the Rocky Mountains. [A Microrhopala unknown to me. — Lec] CASSIDA G. UNIPUNCTATA. — Yellow ; margin whitish ; thorax with a black spot. Inhabits Missouri. Body oval, yellow : head whitish : antennee black at tip : la- brum black : thorax, anterior and lateral margin white : an ab- breviated, black line on the middle : elytra irregularly punc- tured ; margin pale or whitish : beneath black, varied with whitish : feet whitish. Length two-fifths, breadth about one-fourth of an inch. The form of this species is more oblong than any other of its American congeners; it is also of a larger size than either of them that I have seen. [335] [Vol. III. OF PHILADELPHIA. 207 IMATIDIUM Fabr. 1. I. 17-PUNCTATUM. — Yellowish; thorax four-spotted ; elytra twelve-spotted. Inhabits Arkansa. Body pale yellowish, punctured : antennae black at tip : front with an impressed line : mouth dusky : thorax four-spotted in a transverse series ; the two intermediate spots most distant : scutel black : elytra each six-spotted ; spots subequal, placed obliquely 2, 2, 2, and an obsolete common one near the suture : beneath yellow, or yellow varied with black : tarsi black. Length two-fifths, breadth one-fourth of an inch. The position of the black spots is as in IS-punctata, but their number differs; the general color is different, and ll-punctata is of a more slender form than its congener. Found near the Rocky Mountains. [This is C. crihraria Fabr., and belongs to Chelymorpha. — Lec] 2. I. CYANEUM. — Suborbicular, blue, with dilated punctures ; antennas pale. Inhabits Georgia. Body deep blue, suborbicular, with profound, excavated punc- tures ; head slightly punctured; a longitudinal, impressed line : antennae, excepting the basal joint, pale yellow : thorax, poste- rior edge forming nearly a semicircle, lobate at the scutel ; lateral edge almost transverse ; anterior margin very profoundly emarginate; punctures, each side [436] dilated, on the middle obsolete : scutel purple, truncate at tip : elytra, humeral angle advanced subacute ; punctures arranged in series, and each with a minute, central, purplish tubercle ; tergum sanguineous : be- neath black, impunctured. Length one-fifth of an inch. A very beautiful species, commmon on the sea islands of Georgia and East Florida. [Belongs to Porphyraspis Boh., and is Cassida eiythrocera Germ. The specific names both bear the date of 1824 ; the one of Germar is adopted by Boheman and will therefore prevail. — Lec] 1824.] 203 ACADEMY OF NATURAL SCIENCES CLYTHRA Laich, Latr. C. 4-GUTTATA. — Black; elytra, with a large, red, humeral spot, and an orbicular terminal one. Inhabits the United States. Cryptoceplialus ^-guttatus Oliv. in Melsh. Catal. Body deep black, polished, punctured : head and thorax, punc- tures minute, profound ; elytra, punctures obsolete or very slightly impressed ) a large red spot on the humerus, and another orbicular one at the tip of each. Length three-twentieths of an inch. Very much resembles Gryptocephalus i-maculatus. [Previously described as O. latidavis Forster, C. ohsita Fabr., and O. nign'pes Fabr. ; C. ephippium Germ, is also a synonym. — Lec] GRYPTOCEPHALUS. 1. C. NIGRICORNIS. — Black; thorax and elytra obscurely margined with rufous. Inhabits Missouri. Body black, punctured: labrum and basal joints [437] of the antennae, beneath rufous : thorax, lateral margin rufous ; edge black : elytra with regular series of punctures ; exterior margin, tip, base, and subsutural line obscure rufous ; edge black ; an obsolete, rufous spot each side of the tail. Length less than three-twentieths of an inch. One or two of the interstitial lines of the elytra are sometimes very obsoletely rufous, particularly in the larger females. In some of the males the rufous margin is hardly perceptible. [Belongs to Pachyhrachys, according to Suffrian, Linn. Ent. 7, 161.— Leg.] 2. C. ABDOMiNALis. — Gray-brown ; the punctures black ; be- neath black ; feet and margin of the abdomen pale. Inhabits Missouri. Body gray-brown, punctured : head and thorax irregularly clouded with markings composed of blackish, impressed punc- tures : elytra striate with black punctures : beneath black : feet pale, with a black femoral spot ; edge of the venter pale : tail whitish, with small, blackish dots. [Vol. in. OP PHILADELPHIA. 209 Length less than three-twentieths of an inch. [Also a Pachyhracliys. — Lec] 3. C. FASCIATUS. — Yellowish, varied with rufous : elytra with three bands ; beneath rufous. Inhabits Missouri. Body yellowish, punctured : head rufous ; orbits yellowish ; punctures crowded, irregular : eyes black, transverse : antennae dusky at tip : labrum dusky at base : thorax varied with yellow- ish and rufous ; punctures sometimes confluent ; posterior angles a little produced backwards and acute : [ 438 ] scutel rounded at tip : elytra striate, with large, deeply impressed punctures ; punc- tures at tip irregularly disposed ; three dilated, somewhat undu- lated, rufous fasciae : beneath rufous : feet somewhat paler. Length about three-twentieths of an inch. Found near the Konza river. At first sight it might be taken for a variety of 0. congestus, of which the spots had become confluent into bands, but the much punctured thorax is a dis- tinguishing character that cannot in this instance be mistaken. 4. C. PUNCTIPES. — Black; front two-spotted; thorax with three spots, and margin rufous; elytra varied with whitish spots. Inhabits Arkansa. Body black, punctured : labrum each side, base of the antennae, three or four small obsolete spots between the antennae, and two larger ones between the eyes, dull rufous : thorax, anterior and lateral margins, two oblique, dilated, abbreviated lines at base, and one at tip dull rufous : elytra with punctured stria? ; basal edge, three large marginal spots, of which one is terminal ; a smaller one on the middle, near the suture, and two or three smaller ones near the base, yellowish : thighs with a white ob- long spot near the anterior tip : tail with two dull rufous dots, and a smaller one each side on the terminal ventral segment. Length less than one-fifth of an inch. Corresponds in some respects with Olivier's [439] descrip- tion of his C. hrunnipes, but besides some other differences, the antennae are shorter than the body. It may possibly, however, be the same. 1824.] 14 210 ACADEMY OF NATURAL SCIENCES 5. C. FEMORATUS. — Black ; labrum wliite ; thorax with three rufous spots; elytra with a whitish, basal edge. Inhabits Arkansa. Body black, punctured : antennae pale rufous at base : eyes approaching above : labrum white : thorax with a dilated, longi- tudinal, red spot on the lateral margin, and a line in the middle much dilated on the basal margin and edge ; elytra, punctures irregularly disposed, and approximate at base, becoming in regu- lar series towards the tip; basal edge white : anterior thighs more robust than the others. Size of the preceding. The form of this species is very like that of punctipes. Varies in having the thorax entirely red, slightly shaded with black ; with a few small whitish points on the posterior part of the ely- tra, and obsolete white spots on the anterior femora. [Belongs to Pacliyhracliys^ and is the same with C. luridua. Fabr. — Lec] 6. C. RECURVUS. — Black ; margins of the thorax and elytra yellowish. Inhabits the United States. Body black : head impunctured : labrum dark piceous : thorax yellowish-rufous, impunctured ; a large, dorsal, black spot which attains the posterior but not the anterior edge ; a small round dot each side sometimes obsolete or wanting : elytra with [440] punc- tured striae ; exterior and terminal margins yellow ; edge black : beneath all black. Length about one-ninth of an inch. A pretty little species, and bears some resemblance to Chryso- mela marginella of Donovan, and as in that species, the yellow of the terminal margin is recurved for a short distance upon the sutural margin. It is probably allied to the C. lituratus Fab. [This is a variety of C. lituratus Fab. — Lec.J 7. C. CONFLUENTUS. — [Ante 1, 64.] 8. C. BiviTTATUs. — [Ante 1, 65.] [441] 9. C. 4-MACULATUS. — Black ; elytra with a large red spot on the humeral base, and an orbicular terminal one. Inhabits the United States. Gryptocephalus 4-macuIatus Knoch in Melsh. Catal. [Vol. III. OF PHILADELPHIA. 211 Body deep black, polished, obsoletely punctured : labrum at tip, and antennae at base, pale : elytra with striae of large profound punctures; a large, red, humeral spot extending along the base to the scutel, and along the exterior margin nearly to the middle : a large, orbicular, red spot near the tip of each elytron. [442] Var. a. Humeral spot not extending along the base, but oblong- oval. Var. b. Humeral and terminal spots elongated so as to unite on the margin. Length one-fifth of an inch. Very similar in color and appearance to Clythra A-guttata. COLASPTS Fabr. Latr. 1. C. PRETEXTA. — Metallic ; thorax and elytra edged with green ; antennae and feet pale. Inhabits the United States. Eumoljms metalUcus Knoch in Melsh. Catal. Body dull reddish or dusky, tinged with cupreous ; polished, punctured ; head, punctures remote ; a profoundly impressed, frontal line : antennae and palpi pale, whitish : labrum and tip of the clypeus somewhat piceous : thorax, punctures profound, sub- equally distributed ; lateral, reflected edge green : scutel, punc- tures obsolete : elytra, punctures, rather large, scattered irregu- larly at base ; near the tip smaller, and approaching regular se- ries ; beneath piceous : feet pale. Length more than one-fifth of an inch. It is not uncommon on the myrtle. The name mctallicus is pre-occupied. [This is C. picipes 0\.', it is placed in Dejean's Catalogue in Chalcophana, a genus of which I have not seen any description. — Leg.] 2. C. ovATA. — Blackish-coppery, convex ; antennae and feet pale rufous. Inhabits the United States. [443] Eumolpus ovatus Knoch in Melsh. Catal. Body blackish, with a cupreous tinge, punctured : head densely punctured : antennae and palpi entirely pale rufous or yellowish : labrum piceous : thorax with dense, somewhat equally distributed punctures : elytra, punctures longer, and irregularly disposed at 1824.] 212 ACADEMY OF NATURAL SCIENCES base ; near the tip smaller, and approacliing regular series ; be- neath blackish : feet pale rufous. Length more than one-tenth of an inch. A much smaller and much more convex species than the pre- ceding one. In the form of the terminal joint of the maxillary palpi; this species closely approaches the genus Eumolpus. 3. C CONVEXA. — Blackish ; labrum and base of the antennae rufous ; an indented line on the vertex. Inhabits Missouri. Body convex, blackish, tinged with greenish or dull cupreous, punctured : head minutely punctured; an indented, abbreviated line near the vertex, which does not extend below a line drawn between the middle of the eyes ; space between the antennas plain : antennae black; six basal joints pale rufous : labrum pice- ous : palpi pale at base; tip black : thorax densely and minutely punctured : elytra with large and more distant punctures, some of which become almost regular series near the tip : beneath black, somewhat tinged with brassy : feet pieeous-black : thighs subclavate. [444] Length less one-fifth of an inch. 4. C. STIATA. — Black; labrum, palpi, and base of the antennae, dull rufous ; elytra striate, with punctures. Inhabits Missouri. Body black, punctured, immaculate : head with obsolete, small punctures ; an obsolete, indented abbreviated line near the vertex, hardly attaining a line drawn between the middle of the eyes : antennae, five or six basal joints dusky rufous : labrum piceous : palpi pale at base: thorax, punctures minute, not deeply im- pressed : elytra with regular series of large, profound punctures : thighs dilated in the middle. Leno'th three-twentieths of an inch. [A species belonging to Paria Lee, Proc. Acad. Nat. So. Phil. 1858, 86 ; it is C. aterrima Oliv. — Lec] 5. C. PUNCTICOLLIS. — Greenish or cupreous ; thoracic punc- tures oval ; labrum and antennae at base rufous. Inhabits Missouri. Head and thorax with crowded, longitudinally oval, profound punctures : antennae black-brown ; six basal joints pale ; labrum [Vol. III. OF PHILADELPHIA. 213 and mandibles piceous : palpi pale at base : elytra, punctures scattered, near the tip placed in obsolete series : feet dark pice- ous : tliighs black. Length three-twentieths of an inch. Very similar to C. convexa,\i\ii is smaller, and the thoracic punc- tures are larger. The feet are sometimes entirely rufous. [445] 6. C. 10-NOTATA. — Rufous-brown, hairy; elytra each with about six obsolete, black spots. Inhabits the United States. Body dark reddish-brown, punctured, clothed with short cine- reous hair : labrum and base of the antennae yellowish : thorax emarginate : elytra with dilated, confluent punctures : humerus prominent ; each with a black spot on the middle of the base, one on the humerus, a linear, dorsal one near the suture, a fourth near the margin, sometimes double, and a double one before the tip : thighs with a projecting angle beneath. Length less than three-twentieths of an inch. A very distinct species ; it may perhaps, with almost equal propriety, be referred to the genus Uumolpus. [Belongs to PachnejjJiorus. — Lec] 7. G. 6-NOTATA. — Pale ; each elytron with three black spots. Inhabits the United States. Body pale punctured : front with an obsolete black spot : ely- tra with regular series of punctures, which disappear towards the tip ; a black, linear spot near the base, and two others on the middle, which are parallel and approximate, and of which the interior one is placed rather further backward : beneath black : pectus, feet, and posterior portion of the venter, pale : thighs with a slight angle beneath. Length about three-twentieths of an inch. [446] I have found this specimen in considerable numbers on the common Juniper in July. [Belongs to Paria. — Lec] 8. C. 4-NOTATA. — Black ; head rufous ; elytra testaceous, with two black spots. Inhabits the United States. Body black, punctured : head obscure rufous : antennae paler at base : thorax black, immaculate ; punctures sparse, not pro- 1824.] 814 ACADEMY OF NATURAL SCIENCES found : scutel pale reddish-brown : elytra pale testaceous, with striae of punctures, which become obsolete before the tip ; a black, oblique spot near the base of each, and a larger obliquely, quadrate one on the middle ; exterior edge black : feet pale : thighs with a minute angle beneath. Length about three-twentieths of an inch. It has considerable resemblance to the preceding. [Also a Paria. — Lec] 9. C. PALLIDA. — Pale rufous : elytra pale testaceous, immacu- late. Inhabits Missouri. Body very pale rufous ; head obsoletely punctured ; an indented, abbreviated line or spot on the vertex : thorax, punctures small, sometimes obsolete : elytra pale testaceous, with striae of punc- tures which become obsolete before the tip : beneath pale. Length three-twentieths of an inch. Very similar to C. Q-notata, but is always destitute of spots on the elytra. [This and the next belong to MetacJiroma, as limited by me, Proc. Acad. Nat. Sc. Phila. 1858, 85. I consider them both as varieties of M. quercatum. — Lec] [447] 10. C. DUBiosA. — Pale rufous ; elytra pale testaceous, with a black suture dilated at base. Inhabits Arkansa. This species seems to differ from the preceding, only by hav- ing a black suture dilated at base, a black lateral edge on the an- terior half, sometimes obsolete, and a black, basal ventral seg- ment ; the thorax is sometimes obsoletely dotted with black, and in one specimen is a small black spot anterior to the middle of each elytra ; the 6-notata, 4-notata, pallida, and dubiosa may possibly prove to be the same species, exhibiting remarkably dis- tinct variations in the distributions of its colors. Found near the Rocky Mountains. I think it possible that dubiosa may prove to be a variety of Grytocephalus canellus Fabr. 11. C. FAVOSA. — Greenish, with dilated, profound punctures: antennae black, testaceous at base. Inhabits Arkansa. Body greenish, with a coppery tinge, with numerous, approxi- [Vol. III. OF PHILADELPHIA. 215 mate, irregularly disposed, confluent, profound, dilated punctures : eyes brown : antennae black, dark testaceous at 'base : labrum piceous, impunctured : edge of the tborax and elytra more ex- clusively bluish or violaceous ; punctures of the elytra larger than the thoracic ones ; humeral prominence impunctured : pec- tus with smaller punctures : postpectus with a few minute punc- tures furnishing minute hairs, and with [448] the venter, which is impunctured, bluish-violaceous : feet dark violaceous. Length one-fourth of an inch. 12. C. DENTICOLLIS. — Lateral thoracic edge three-toothed ; elytra serrate. Inhabits Missouri. Body black, slightly bronzed, covered with dense, robust, cinereous hairs : antennae dull rufous at base : thorax with three equal, equidistant teeth on the lateral edge : elytra, lateral edge minutely dentated; tip simple: anterior tibia and posterior thighs one-toothed. Length nearly one-fifth of an inch. [Belongs to Myochrous Chevr., of which I have seen no descrip- tion.— Lec] 13. C INTERRUPTA. — Rufous ; thorax with two spots ; elytra, suture, exterior edge, and abbreviated vitta, black. Inhabits Arkansa. Body rufous, punctured : antennae black; five basal joints pale rufous : thorax with a large black spot on each side : scutel pice- ous : elytra rather paler, with regular punctured strise, which are nearly obsolete at tip ; a black sutural line, exterior edge, and oblique vitta, which originates upon the humerus, is interrupted at the middle, and terminates before the tip : beneath blackish : feet pale rufous. Length one-fourth of an inch. Found near the Eocky Mountains. [Belongs to Metachroma. — Lec] [449] EUMOLPUS Fabr. Latr. E. CRYPTicus. — Entirely covered with short, cincereous hair; elytra very acute at tip. Inhabits Missouri. 1824.] 216 ACADEMY OF NATURAL SCIENCES Body densely covered with short, robust, cinereous hair, be- neath which the surface is dull reddish, inclining to cupreous ; punctured : scutel dusky, sparsely hairy : elytra with very small, profound punctures, which are more distant from each other than the length of their diameters ; tip attenuated equally from the suture and exterior edge ; a little produced, and terminating acutely. Length less than two-fifths of an inch. Very similar to a smaller species which Mr. F. N. Melsheimer, in his catalogue, names jnlosus ; but the elytral punctures of that insect are much more crowded. CHRYSOMELA of Authors. 1. C. HYBRiDA. — Ferruginous ; elytra pale yellow ; suture and three lines on each ferruginous. Inhabits Missouri. Body oval, punctured, ferruginous : thorax irregularly punc- tured, and with large, confluent punctures each side : scutel im- punctured, rounded at tip : elytra, with the suture and three lines, rufous; the intermediate line undulated, and united [450] to the exterior one at base, and abbreviated at tip : wings pink red. Length more than three-tenths of an inch. Very much resembles C. exdamationis Fab., but, besides other differences, the exterior elytral line is not interrupted ; in the color of the thorax it approaches Fabricius' description of that species. Brought from the Missouri by Mr. T. Nuttall. 2. C. MULTIPUNCTATA. — Ferruginous ; thorax yellow, with a ferruginous curve ; elytra yellow, with numerous green spots. Inhabits Missouri. Head and all beneath ferruginous ; thorax yellow, with a ferru- ginous, irregular, arquated line and basal edge, including an ob- solete dot : elytral with a sutural line, and numerous, irregular, o-reen dots and abbreviated lines, and immaculate, exterior mar- gin : wings rosaceous. Var. a. Suture with a common, ferruginous fillet. Size of C. pliiladelphka, which it closely resembles ; but, al- though it varies much, it may always be distinguished from that [Vol. III. OF "PHILADELPHIA. 217 species by the colors of tlic head and thorax, which, in the phila- delphica, are always green, immaculate. Numerous specimens were brought from Missouri by Mr. T. Nuttall. 3. C. DissiMiLis. — Dark purple or greenish; antennae black; beneath blued-black. [ 451 ] Inhabits Missouri. Body dark purple, violaceous or greenish, punctured ; punc- tures profound, subequally distributed : head impressed between the antennas : antennae and palpi black : thorax regularly convex ; lateral edges regularly arquated ; scutel impuuctured : elytra destitute of striae : beneath blued-black : venter, punctures sparse. Length more than one-fifth of an inch. Varies in its colors. It is sometimes of a very dark purple color, and sometimes of a bright green, more or less tinged, how- ever, with violaceous, particularly about the suture. 4. C. FORMOSA. — Green-gold, brilliant : antennae black ; suture of the elytra purple; beneath violaceous. Inhabits Missouri. Body golden-green, brilliant, punctured : antennae and palpi black : labrum purplish : thorax somewhat inequal ; edges bluish : scutel purple, impunctured : elytra slightly and irregularly ru- gose, punctured ; suture purple ; exterior edge blue : beneath violaceous : tibia black. Length more than three-twentieths of an inch. A brilliant little insect. 5. C. BASiLARis. — Green ; antennae black; basal joint rufous ; thorax with a thickened margin. Inhabits Arkansa. Body green, very slightly glossed with violaceous, punctured : vertex with an impressed line: [452] antennae black; basal joint rufous: thorax indistinctly punctured; punctures distant; lateral margin much thickened : elytra with irregularly scattered punctures : venter dusky, with a greenish gloss. Length less than one-fourth of an inch. I obtained this species near the Rocky Mountains. [Unknown to me. — Lec] 1824.] 218 ACADEMY OF NATURAL SCIENCES 6. C. AURiPENNis. — Violaceous; margin of the thorax thickened ; elytra golden. Inhabits Arkansa. Body violaceous : antennae black, dark violaceous at base : tho- rax with slight, distant punctures; lateral margin much thickened : scutel violaceous, rounded : elytra golden-cupreous, brilliant ; ex- terior edge green, punctured; punctures placed in somewhat regular series. Length more than one-fourth of an inch. A very beautiful insect, of which I obtained but a single speci- men near the Rocky Mountains. 7. C. FLAVOMARGTNATA. — Black ; thoracic margin thickened; elytra margined with yellowish. Inhabits Missouri. Body black, punctured : thorax, punctures each side larger ; lateral margin thickened : elytra with regular series of punctures, and smaller irregularly disposed punctures : exterior margin and tip yellowish ; beneath black. Length more than one-fourth of an inch. Collected in Missouri by Mr. T. Nuttall. [453] HELODES Payk. H. OBSOLETA. — Black ; thorax and elytra margined with yel- lowish. Inhabits Missouri. Body blackish, punctured; head and thorax tinged with green, margin of the latter yellowish, thickened, with a black, insu- lated point : elytra tinged with violaceous, irregularly punctured ; margin, tip, and obsolete lines before and behind the middle, yel- lowish : beneath black, immaculate. Length three-tenths of an inch. Var. a. Obsolete lines none. [Belongs to Chrysomela, as at present received. — Lec] DORYPHORA Illig. 1. D. 10-LiNEATA. — Yellow; thorax litterate, with black; ely- tra each with five black lines. Inhabits Missouri and Arkansa. [Vol. III. OF PHILADELPHIA. 219 Body yellow : head with a triangular, black, frontal spot : tho- rax, two abbreviated, black, approximate lines, divergent before ; about six black dots on each side : elytra, suture, and five lines on each, black; the interior line is confluent with the suture be- hind; exterior line marginal ; three intermediate ones joined or approximated at tip : beneath, incisures and three or four series of ventral spots black. Length two-fifths of an inch. [454] Var. a. Elytra white : the two outer intermediate lines are united at base and tip. This species seems to be not uncommon on the Upper Missouri, where it was obtained by Mr. Nuttall and by myself. The variety I found on the Arkansa. 2. D. 3-MACULATA. — Bluish-green ; elytra yellow, with a com- mon band, and each with a triangular, black spot near the tip ; feet purplish. Inhabits the United States, Chrysomela maculata Melsh. Catal. " trimaculala ? Fab. Syst. Eleut. Bluish-green, punctured : antennae and palpi black : elytra punctured in double lines, which become confused near the tip ; a dilated, black band extending in breadth from near the base to the middle, not attaining the lateral edge, and often interrupted in the middle of each elytron ; a large, triangular spot near the tip of each elytron : beneath black-blue ; feet purplish. Length two-fifth of an inch. A common insect. Mr. Nuttall captured a specimen with the band interrupted into small spots, and the triangular spot near the tip entirely wanting. This species is no doubt closely related to Chrysomela trimacu- lata of Fabr., if not the same, which I believe it to be, although that insect is said to be a native of South America, and the tarsi are not rufous as those of that insect are described [455] to be. The terminal joint of the maxillary palpi is very short and transverse ; in this respect, corresponding in character with the palpi of the genus Doy^pliora, as defined by Mr. Latreille, and, although, as in the preceding species, the prosternum is not remarkably advanced, I prefer arranging it here. 1824.] 220 ACADEMY OF NATURAL SCIENCES GALLERUCA Geoff. Leach. 1. Gr. CORYLI. — Pale yellowish, testaceous ; elytra bifasciate with blue. Inhabits the United States. Illinois. Gallcruca coryli J. F. Melsheimer's letter to me. Body pale yellowish-testaceous : head with an impressed line between the antennas : antennae blackish : labrum hirsute : man- dibles black at tip : thorax transversely concave in the middle ; anterior angles subacute ; posterior ones rounded : scutel rounded at tip : elytra somewhat dilated behind the middle, with numerous, minute punctures, a much dilated blue band at base, and a still larger one at tip : wings black. Var. a. Pale yellowish-testaceous, immaculate. Length more than half an inch. A very large species; it is considerably dilated behind, and has probably considerable affinity with the genus Adorium, but the terminal joint of the palpi is not truncated. It occurs in Maryland [456] and Virginia, on the banks of the Missouri, and J. F. Melsheimer informs me that it is so numerous in some parts of Virginia, that it completely defoliates, in a short time, the Hazel, ( Corylus americanus) upon which it feeds. [A species of Coelomera. — Lec] 2. Gr. TUBERCULATA. — Dull rcddish-brown ; a slight tubercle at the anterior and posterior angles. Inhabits Missoui'i. Body dull reddish-brown, immaculate, with prostrate hairs : antennae black, rufous at three basal incisures : thorax with a much dilated, slightly indented spot each side, and an inconspicu- ous, central line ; edge slightly emarginated each side of the pos- terior angles, which, with the anterior angles, are somewhat elevated, and resemble slight tubercles : elytra irregularly punc- tured : knees, tibia, and tarsi black. Length one-fourth of an inch. This species is remarkable by its dull, and, with the exception of the antennsB and feet, uniform reddish-brown color ; the two emarginations near the posterior thoracic angles are so obtuse as to be little more than truncations 3 the lateral one of which pro- [Vol. III. OF PHILADELPHIA. 221 duces an angle at its anterior termination on the middle of the edge. [Belongs to Adimonia, — Leg.] 3. G. DORS ATA. — Pale yellowish ; elytra blue, with a yellow outer margin and tip. Inhabits Arkansa. Body pale yellowish : head black on the vertex : antennae black-brown : thorax immaculate ; punctures [ 457 ] obsolete : scutel blackish-bronze : elytra irregularly punctured, greenish- blue ; exterior margin and tip yellow ; an indented, abbreviated line on the basal middle : feet with a blackish line above. Length one-fourth of an inch. Found on the banks of the Arkansa above the Verdigris. [Unknown to me. — Leg.] 4. Gr. CIRCUMDATA. — Yellowish ; antennas black; elytra pur- plish-black, with a yellow border and suture. Inhabits x\rkansa and Missouri. Body yellowish : head impunctured : antennae black : thorax impuuctured, transversely-quadrate ; edges nearly rectilinear ; scutel yellow : elytra with minute, distant punctures, blackish- purple ; suture, exterior margin, and tip, yellow : beneath pale yellow. Length less than one-fourth of an inch. The basal joint of the antennae is sometimes yellowish. [Perhaps a Phjllohrotica described by Fabricius as G. dis- coidea ; but that species has usually the first three joints of the antennas yellow, and the thorax is bifoveate. — Leg.] 5. Gr. TRiciNGTA. — YcUowish ; head, three elytral bands, and terminal dot, black. Inhabits Arkansa. Head black : thorax yellowish, subquadrate : scutel black : elytra yellowish-white, with three equidistant, dilated, black bands, the first of which is uninterrupted and basal, not attaining the lateral edge, and at the suture extending in a common line near to the second band ; second band nearly central, and with the third, not attaining the exterior edge, and interrupted at the 1824.] 222 ACADEMY OF NATURAL SCIENCES suture ; a small black dot on each elytron at tip ; striae none ; punctures numerous, obsolete ; postpectus black : knees, tibia, and tarsi black. Length one-fourth of an inch. Observed near the mountains on the bank of the Arkansa river. [Belongs to Dlahrotica. — Lec.J 6. Gr. EXTERNA. — Blackish-brown, confluently punctured ; margin of the elytra yellowish. Inhabits Arkansa. Body blackish-brown, with dense, dilated, confluent punc- tures : head with a longitudinal, indented line : thoi'ax some- what inequal, with a longitudinal, indented line, and lateral, irregular ones : scutel rounded at tip : elytra confluently punc- tured, with three or four elevated, impunctured lines ; lateral margin and tip slightly dilated, yellow : beneath black. Length more than seven-twentieths of an inch. It is much more robust than G. haccharidis. [This is a species of Adimonia. — Leg.] 7. Gr. PUNCTICOLLIS. — Dull yellowish-brown ; thorax conflu- ently punctured, unequal ; antennae and two fillets on each elytron black. Inhabits Mississippi and Arkansa. Body with minute hairs : head, above confluently punctured : clypeus and labrum glabrous : antennae black : thorax rough, with excavated, confluent punctures ; immaculate, inequal : elytra with minute punctures; fillets obsolete, often wanting [459] or hardly visible: thighs with a black spot: tibia and tarsi black. Length three-twentieths of and inch. Captured by Mr. T. Nuttall on the Mississippi. I also found specimens on the Arkansa near the Mountains. It considerably resembles G. haccharidis Fab., but, besides its difierent mark- ings, its thorax is very much punctured. [Appears to be allied to G. notata and G. notulata Fabr. ; I have not yet fully identified it. — Leg.] 8. G. ATTENUATA. — Ycllowish-brown; thorax with three black [Vol. III. OF *»HILADELPHIA. 223 spots ; elytra greenisli-blue, polished [punctured ?] ; margin and abbreviated fillet yellowish. Inhabits Missisippi. Body yellowish-brown : head with an impressed line on the front : antennae and vertex black : thorax with a dorsal spot and lateral one each side, black : elytra greenish-blue, with very minute, crowded, and confluent punctures ; fillet attenuated, arising from the middle of the base, and terminating beyond the middle of the elytron, and with the exterior margin and tip yel- lowish-brown. Length three-tenths of an inch. The fillet varies in length, and its breadth sometimes continues undiminished to the tip. Captured by Mr. T. Nuttall. [I have a species which agrees with this except that the elytra are not polished, nor do T think that character will be found in any species having three thoracic spots. — Lec] 9. G. DECORATA. — Yellowish ; antennae, vertex, and two spots on each elytron black. Inhabits Missouri. Body yellowish, immaculate, glabrous : vertex and antennae, excepting'the three basal joints, black : edges linear ; the posterior one slightly [460] sinuate: scutel black at base : elytra obso- letely punctured, rounded at tip ; each with an oval, black spot at base, and a larger, oblong one extending from the middle to near the tip : pectus and postpectus black. Length less than three-tenths of an inch. The second and third joints of the antennae are subequal, and taken together are hardly longer than the fourth, as in the genu? Adimonia of Schrank. [A species of Phyllohrotica, previously described by Olivier as G. ^L-maculata, a name already employed ; subsequently by Kirby as G. OKvieri. — Leg.] 10. G. LONGicoRNis. — Green, oblong; thorax with two im- pressed spots ; elytra with a black fillet and suture. Inhabits Arkansa. Body pale greenish : eyes blackish : antennae as long as the body ; second and third joints conjointed, shorter than the fourth : thorax subquadrate ; two dilated, oval, impressed spots placed 1824.] 224 ACADEMY OF NATURAL SCIENCES rather behind the middle : elytra irregularly punctured ; three or four obsolete, elevated lines, of which the exterior one is largest, and colored by a brown fillet which does not attain the tip : a brown common sutural line. Var. a. Destitute of the fillet and sutural line. Length less than one-fifth of an incl\. I obtained specimens near the Rocky Mountains. The length of the antennae in some specimens would authorize the placing of it in the genus Lupems, whilst the abbreviation of the third and fourth joints resembles those of the genus Adimonla [461] of Schrank. This insect varies in being more robust, with the antennae shorter than the body, and the elytra, at first view, are entirely olive-green ; but on inspection, vestiges of the fillet and sutural line sometimes are visible near the base. It is very simi- lar to Cri^ceris vittata of Fab. [Belongs to Phyllohrotica. — Leg.] 11. G. ATRiPENNis. — Black; thorax rufous, with two im- pressed spots ; venter pale yellowish-rufous. Inhabits Missouri. Black, impunctured : head, an indented, frontal spot, and a carinate line between the antennas : thorax pale rufous ; two di- lated, indented spots : elytra irregularly and confluently punc- tured ; an elevated line from the humerus, parallel with the edge : pectus and venter pale rufous. Length nearly one-fifth of an inch. The second and third joints of the antennEe are abbreviated and equal, as in the preceding species. [A species of Phyllohrotica, unknown to me, but closely allied to G. (Adwiom'a) cristata Harris, Trans. Hartford Nat. Hist. Soc, 90, which difiiers chiefly by the thorax having a wide black vitta, and by the body being black. — Leg.] 12. Gr. ATRiVENTRis. — Pale rufous ; antennse, elytra, and ab- domen, black. Inhabits Missouri. Body pale rufous : eyes black : antennse ten-jointed, black : thorax with a dilated, black margin; interrupted before the scu- tel : scutcl pale rufous : elytra black, glabrous, immaculate : wings black : feet, line above the femora, tibia and tarsi black : abdo- men deep black. [Vol. III. OF PHILADELPHIA. 225 Var. a. Thorax destitute of the black margin. Length more than one-fifth of an inch. On the Amorpha fruticosa, the leaves of which [462] it feeds upon. The antennae are as long as the body, as in the genus Lupcrusj and have but ten distinct articulations. [The ten-jointed antennae are seen only in the male; in the female those organs have eleven joints. Otherwise this species belongs to Phyllohrotica. — Lec] LANaURIA Latr. 1. L. PUNCTicoLLis. [Ante, 1, 86.] 2. L. 3-FASciATA. [Ante, 1, 86.] [ContinTiation from Vol. 4, 1824, pp. 88—89.] ALTICA Geoff. Latr. 1. A. GIBBITARSA. — Rufous, antennae black; elytra green; thorax spotted. Inhabits Missouri. Body rufous, glabrous, ovate : head with an impressed frontal line : antennae blackish : thorax three-spotted; dorsal spot double ; lateral ones smaller and rounded : scutel-purplish-bronze : elytra green, polished ; punctures obsolete, irregular : beneath yellow- ish-rufous : thighs rufous : tibia and tarsi blackish ; terminal joint of the posterior tarsi very gibbous, almost spherical near the claws. Length less than one-fourth of an inch. [Belongs to Oedionycliis. — Lec] 2. A. viANS. — Thorax yellowish, with a transverse black spot ; head and elytra black. Inhabits the United States. Altica vians Knoch in Melsh. Catal. Head black : thorax yellowish ; a transverse, black spot, not undulated, occupying nearly all the disk : elytra greenish-black, with minute, equidistant punctures : beneath black : pectus, on each [84] side, excepting a small black spot, yellowish : venter 1821.] 15 226 ACADEMY OP NATURAL SCIENCES margined "witli rufous : terminal joint of tlie posterior tarsi gib- bous near the claws. Length nearly one-fourth of an inch. [Belongs to OedionycMs, and previously described by Illiger under the same name. — Lec.^ 3. A. SCRIPTICOLLTS. — Black; thorax yellowish, with a trans- verse, undulated spot ; venter yellow. Inhabits Missouri. Body oval, black, glabrous, minutely punctured : head with a transverse, rufous, frontal spot, and another very small one at the base of each antenna : thorax yellow ; a transverse, undulated, spot occupying more than two-thirds of the transverse diameter : scutel impunctured, rounded at tip : elytra black, immaculate ; pectus yellowish : venter pale yellowish; terminal joint of the posterior tarsi gibbous near the claws. Length nearly one-fourth of an inch. Very like the preceding, but may be distinguished by the frontal spot, and by the undulated, litterate form of the thoracic spot. [Belongs to Oedioni/cJiis. — Leg.] 4. A. TRIANGULARIS. — Black ; thorax yellowish, with three black points placed triangularly. Inhabits Missouri. Body oval, black, glabrous : thorax yellowish, with three black points placed triangularly, the two anterior ones orbicular, the posterior one linear, very short : elytra violaceous-black, and as well as the thorax, minutely punctured : pectus, excepting the origin of the feet, yellow ; terminal joint of the tarsi simple. [85] Length about one-fourth of an inch. Remarkable by the triangular position of the black thoracic points. 5. A. BIMARGINATA. — Blue J thorax with an impressed trans- verse line; elytra with a much elevated line near the margin. Inhabits Missouri. Body oblong-oval, blue, minutely punctured : antennae black : thorax with an impressed, transverse, rectilinear line behind the middle, attaining the lateral margins, and another impressed line before, which is interrupted in the middle and abbreviated [Vol. IV. OF PHILADELPHIA. 227 each side : elytra with an elevated, suhmarginal line each side, originating on the humerus, and nearly parallel with the ex- terior edge. The posterior thighs 'are much less dilated than those of qoI- laris Fabr. 6. A. 5-viTTATA. — Yellowish; thorax four or five-spotted : ely- tra five-lined. Inhabits Missouri. Body oblong-oval, yellowish, glabrous : antennae black ; three basal joints rufous beneath : thorax with an abbreviated, black line on the middle of the posterior submargin, and a semi-circu- lar series of four equal, equidistant, suborbicular black spots : posterior edge concave at the scutel : scutel black : elytra with a common sutural fillet ; each elytron with a fillet originating at the humerus and terminating near the tip, and another marginal, less [86] dilated fiilet, confluent with the sutural vitta at tip; region of the origin of the posterior feet black : thighs rufous : tarsi, and a line on the superior edge of the two anterior pairs of thighs, together with a line on the inferior edge of the tibia, black. Length more than three-tenths of an inch. The arrangement of the lines of the elytra are similar to those of A. caroliniana Fabr. The head is sometimes black at base, and the two intermediate thoi-acic dots are confluent. Found in considerable numbers on the common elder (Sam- bucus) and some other plants. On the evening of the 16th of June, I observed great numbers of these flying in a south-east direction from near St. Louis, obliquely across the Mississippi towards an island, the wind at the same time blowing moderately from the eastward ; the subsequent evening, about the same hour, they returned by the same route reversed, the wind di- rectly opposing them ; both of these days were very warm. During our progress up the Missouri river, I observed, several times, similar migrations of this species. 7. A. NANA. — Cupreous or brassy, polished; beneath black- ish ; antennae and feet rufous ; elytra striate. Inhabits the United States. Body green, cupreous or golden, polished, punctured : head impunctured : antennae rufous ; second joint nearly as long as 1824.] 228 ACADEMY OF NATURAL SCIENCES the third : eyes brown : thorax [87] with numerous irregular, large punctures ; a transverse, impressed, conspicuous, rectilinear line behind the middle, near the lateral margin abruptly re- flected backwards, and terminating at the basal edge ; edge blue : scutel violaceous : elytra with impressed striae, in which are large, profound, quadrate punctures : edge blue : beneath black : feet rufous. Length about one-tenth of an inch. Seems to be closely allied to A. helxines, but the posterior thighs are never black, as those of that insect are described to be. 8. A. PICTA. — Sanguineous; elytra blue; postpectus and venter black. Inhabits the United States. A. sanguinicollis ? Melsh. Catal. Body ovate : head sanguineous : eyes brown : antennae fuscous, pale at base : thorax sanguineous ; posterior angles very obtusely rounded : scutel dark violaceous, rounded at tip : elytra blue, polished, with minute, distant punctures : postpectus and venter deep black : feet pale rufous : posterior thighs piceous each side and above. Length one-tenth of an inch. A beautiful little species. 9. A. SENILIS. — Pale yellow; elytra green; suture and ex- terior edge yellowish. Inhabits Missouri. Body pale yellow, punctured : eyes fuscous : antennse a little dusky at tip : thorax, punctures indistinct ; [ 88 ] an indented, transverse line near the tip : elytra green ; a common sutural fillet, exterior and terminal edges, and epipleura, yellowish; punctures irregularly disposed : posterior thighs but little dilated. Length less than three-twentieths of an inch. 10. A. CENTRALIS. — Black ; thorax with a yellow lateral spot; elytra with a large common rufous spot. Inhabits Missouri Territory. Body oval-orbicular, deep black, polished, with short dense hairs : antennae and palpi pale yellowish : thorax, lateral margins yellow : elytra with a large, oblong, common, rufous spot on the middle : thighs at tip, tibia, and tarsi, pale rufous. Length rather more than one-tenth of an inch. [Vol IV. OF PHILADELPHIA. 229 11. A. UNiGUTTATA. — Black J thorax rufous, with a black spot ; elytra black ; two vittae and margin yellow. Inhabits the United States. Body black, impunctured : front rufous : thorax rufous ; a large, black, central spot, sometimes connected with a smaller one each side, yellowish or pale : elytra, with obsolete punctures, black J two equal, yellowish vittas joining at the tip, of which one is subsutural, and the other originating on the humerus j exterior edge yellowish : pectus yellow : venter, margin rufous : feet rufous : tarsi black. Length more than one-fourth of an inch. Var. a. Feet black; front black. [89] The variety is from near the Rocky Mountains. This species is related to A. 5-viftata, to caroUniana Fabr., and also to horti- cola, and probably to glahrata Fabr. TRIPLAX Latr. (Regne Animal.) 1. T. THORACICA. — Pale rufous; elytra black. Inhabits the United States. Ips hicolor Melsh. Catal. Body pale rufous, punctured ; eyes and antennae, excepting the basal joints, black : elytra with regular series of deeply im- pressed punctures ; interstitial lines with a somewhat regular, undulated series of smaller punctures. Length one-fifth of an inch. I change the name given by Mr. Melsheimer, as it is pre-occu- pied in this genus. [Subsequently described as T. melanoptera Lac. — Lec] 2. T. SANGUiNiPENNis. — Black ; elytra and abdomen rufous. Inhabits the U^nited States. Tritoma hicolor Melsh. Catal. Body black, minutely and rather distantly punctured : an- tennae, intermediate joints pale rufous : palpi whitish : elytra pale rufous, with punctured striae : abdomen pale rufous. Length less than one-fifth of an inch. The word hicolor is preoccupied in this genus. 3. T. BIGUTTATA. — Black, with a spot at the base of each elytron; beneath yellowish. [90] 1824.] 230 ACADEMY OF NATURAL SCIENCES Inhabits the United States. Trituma higuttatum Knoch in Melsh. Catal. Body punctured, black, yellowish beneath : head dull piceous, darker on the disk : elytra with punctured, slightly impressed strife, each with a large, basal, yellowish-rufous spot extending from the scutel to the humeral angle, and hardly attaining the middle of the elytron. Length less than three-twentieths of an inch. A common species. [Afterwards described as Tritoma hasuUs Lac. — Leg.] PHALACRUS Payk. Latr. 1. p. PALLIPES. — Piceous-black, polished, antennae, palpi and feet testaceous. Inhabits Missouri. Body deep piceous-black, highly polished, immaculate : an- tennae and palpi pale testaceous; terminal joint of the former much largest, abruptly narrowed at tip : thorax with minute, obsolete punctures each side ; angles acute; an obsolete, indented spot at the posterior angle ; base dilated somewhat in the region of the scutel : elytra with obsolete, remote series of punctures, rather more distinct near the external margin ; two impunctured striaD near the suture on each elytron : pectus and venter with a few yellow hairs : feet pale testaceous, with scattered hairs. Length not quite one-tenth of an inch. In considerable numbers on plants near the [91] Konza village. The elytra appear perfectly smooth and polished to the eye, and to an ordinary magnifier. [A species of Olthrus, unknown to me. — 'Lec] 2. P. penicXllatus. — Black, glabrous, oval; thighs ciliate at tip. Inhabits the United States. Body oval, entirely deep black, glabrous, impunctured, polish- ed : antennae piceous-black, with sparse, short setae ; terminal joints with cinereous, short pubescence : thorax minutely punc- tured ; angles subacute ; elytra, humeral angle subacute, with obsolete, distant series of punctures, and an impressed stria near [Vol, IV. OF PHILADELPHIA. 231 the suture ; tliighs ciliate at the inferior tip ; tibia piceous black : veuter with reflected hairs. Rather hxrger than the preceding species. Found near Engineer Cantonment. It differs from pa/lipes in its differently colored feet, and ciliate tip of the thighs. In many parts of the United States, this spe- cies is found in the seed vessels of such plants of wheat as are destroyed by the parasitic vegetable called smut. AGATHIDIUM Illig. Latr. A. PALLIDUM. — Body yellowish-testaceous; elytra with very minute, transverse lines. Inhabits Missouri. Body oval, convex, yellowish-testaceous, glabrous : head with a few hairs beneath the edge ; [ 92 ] eyes prominent, hemisphe- rical, black : palpi subulate: antennae hirsute, clavate ; club ob- long, perfoliate ; second joint of the club minute : thorax im- punctured : scutel minute : elytra rugose in transverse very minute lines : thighs with very minute spines above : tibia with prominent, rigid spines. Length more than three-twentieths of an inch. u^ A single specimen occurred under wood, at Engineer Can- tonment. [This insect is unknown to me. It is perhaps an Anisotoma. , COCCINELLA. ^. "jj 1. C. UNDULATA. — Black j exterior margin of the thorax, and ^ undulated exterior margin and spot of the elytra, yellowish. ^' , Inhabits Missouri. r. H . Body deep black, punctured : head slightly hairy before : punctured obsolete : antennae yellowish-testaceous : thorax with j>J, acute punctures ; lateral margin white : scutel triangular ; tip acute : elytra, punctures dilated, slightly indented ; a large white spot on the centre of each, and an undulated, white exterior mar- gin : undulations three : feet yellowish-testaceous, piceous at base. Length rather more than one-tenth of an inch. Var. a. Undulated margin interrupted into three spots. 1824.] 232 ACADEMY OF NATURAL SCIENCES Var. b. Central spot of each elytron extended backward, and confluent with the tip of the margin. [93] [Belongs to H^j^eraspis ; the name being preoccupied, was •changed to M. elegans by Mulsant. G. lugitbris Randall, is per- haps a variety of this species. — Lec] 2. C. MALT. — Elytra brownish red ; each with seven black spots ; and a common one on the scutel. Inhabits North America. C mall Melsh. Catal, Head black ; two white spots between the eyes : thorax black ; two small white spots at the base, and a white lateral margin including a black spot ] anterior edge yellow ; spots on the elytra placed 1, 3, 3, and a common one at the base : beneath black ; margin of the abdomen fulvous : feet testaceous : thighs black. Length seven-twentieths of an inch. Var. a. Spots of the elytra surrounded with a whitish areola. Varietas ocellata Melsh. Catal. Var. b. Ground color of the elytra whitish. 61 ocellata Melsh. Catal. [Belongs to Myzia as reformed by me, Proc. Acad. Nat. Sc. Phil. 6, 132, and is identical with the European M. Id-jmnctata, 0. lahiculata Say, ante, 1, 192, is the same. — Lec] 3. C. PARENTHESIS. — Elytra pale yellowish, each with a spot ; posterior lunule and common spot at base. Ooccinella parenthesis Melsh. Catal. " b-notata Knoch in Melsh. Catal. Inhabits the United States. Head black ; labrum testaceous ; a white, abbreviated, frontal line, and a spot near each eye : thorax black ; a square spot at base ; anterior and lateral margin, and abbreviated, acute line before, white : elytra with a humeral, black spot ; a common one near the base connected with the scutel ; [94] a large lunule, occupying the posterior half of the elytron, sometimes interrupted into two distinct spots : beneath black. Length one-fifth of an inch. [Belongs to Hippodamia, and was afterwards described as C. tridens Kirby, and H. lunato-maculata Motsch.-^-LEc] [Vol. IV. OP PHILADELPHIA. 233 4. C. TIBIALIS. — Elytra pale yellowish-red, witli a common spot near the base, and six black spots on each. Inhabits Missouri. Head black ; frontal spot, and all befoi'e the eyes, white : thorax black : anterior and lateral margins white, so branched as almost to inclose a black spot on each side : elytra pale orange • spots placed 1, 2, 2, 1 : beneath black : venter margined with pale orange : tibia and tarsi testaceous. Length more than one-fifth of an inch. [Belongs to Hippodamia, and is the same as the European H. IS-punctata. — Leg.] 5. C. BIOCULATA. — Elytra red ; each with a black spot on the middle. Inhabits the United States. Head black ; orbits white : thorax black ; a large marginal spot ; anterior margin, and two spots at the base, white : elytra reddish; a transverse, oval, black spot on the middle of each; sometimes included in an obsolete, white areola : beneath black : venter margined with rufous. Length one-fifth of an inch. The anterior margin of the thorax is sometimes black like the disk, and the basal spots are wanting. [Mulsant considers this as identical with the European C. hi- punctata. — Leg.] 6. C. ALBiFRONS. — Elytra yellow ; suture and two spots on each, black; head and anterior part of the thorax whitish. [95] Inhabits Missouri. Head yellowish : thorax black ; anterior and lateral margins, and abbreviated line before, white : elytra, with the suture, tip, outer edge, and two spots, black ; spots placed one near the humerus, and the other behind the middle. Length less than one-fifth of an inch. Taken on the Missouri by Mr. T. Nuttall. [Belongs to BracMacantJia. — Leg.] 7. C. ABDOMiNALis. — White ; thorax with seven, elytra each with eight black spots. Inhabits Arkansa. Yellowish-white : head immaculate : thorax with seven black spots placed 2, 5; the anterior ones, placed on the middle, ob- 1824.] 234 ACADEMY OF NATURAL SCIENCES long, oblique, slightly undulated, and nearly confluent at tip with the posterior intermediate one : elytra 8-spotted ; spots small, placed four near the base, three on the middle, and one near the tip : postpectus dusky : venter testaceous : feet pale. Length one-fifth of an inch. 8. C. nuMERALis. — Black ; elytra with a humeral spot, and one behind the middle, red. Inhabits Arkansa. Body deep black : head, a white spot each side between the eyes : antennae and palpi pale : thorax, an obsolete, whitish, lateral margin and anterior angle : elytra, a large, oral, yellowish- red, humeral spot, and an orbicular, red, subsutural one on each, rather behind the middle. Length more than three-twentieths of an inch. [96] Two specimens were obtained near the Rocky Mountains. [Unknown to me. — Lec] 9. C. 20-MACULATA. — Whitish ; thorax with five, elytra each with nine black spots. Inhabits Missouri. Coccinella 20-macuIata Knoch in Melsh. Catal. Yellowish-white : thorax with four rather large, equal, black dots placed in a semicircular series, and enclosing near the base a smaller, obsolete dot : elytra, each with nine spots placed 2, 3, 3, 1, the two central ones confluent : postpectus and venter, ex- cepting the terminal segment, black. Length one-tenth of an inch. [Belongs to PsT/Uolora. — Lec] ENDOMYCHUS Fabr. Latr. E. BiGUTTATUS. — Black ; elytra sanguineous, with two black spots. Inhabits the United States. Head, thorax, and scutel black, impunctured ; two impressed, longitudinal, abbreviated lines, one on each side at the base of the thorax : elytra sanguineous, with numerous small, irregular punctures,* and two orbicular, black spots, the smaller one placed behind the humerus, and the other, large, placed behind the middle, touching the margin. Length near one-fifth of an inch. [97] [Vol. IV. OF "PHILADELPHIA. 235 PSELAPHUS Herbst. Latr. 1. P. CARINATUS. — Reddish -brown ; elytra rectilinearly trun- cated ; tergum tricarinate, and with an elevated edge ; anterior tibia arcuated. Inhabits the United States. Body with short hairs : head deeply indented on the front ; vertex with two small indentations : maxillary palpi with the three last joints dilated ; the ultimate one triangular or cordate, being widely emarginate at tip ; the inner lobe somewhat mucro- nate ; penultimate joint also large and triangular, with a slender spine or seta as long as the joint placed on the exterior angle ; antepenultimate joint rounded, with a spine on the exterior side, similar and equal to that of the other joint : thorax rounded, somewhat angulated on the middle of the side, punctured : elytra not quite half the length of the abdomen ; minutely punctured, with two obtuse, elevated lines on each, obsolete before the tip, and with an impressed groove between them : tergum rather darker than the elytra, carinated along the middle, and with an abbreviated, carinate line each side at base ; edge elevated : an- terior tibia somewhat arcuated, gibbous before in the middle. Length less than one-tenth of an inch. This species is not uncommon, and is often found under the loose bark of the yellow pine ; it [98] is referrible to the genus Ctenistes Reich. The elytra are terminated by a straight line like those of the dresdensis. It seems probable that the cordate, terminal joint of the maxillary palpi, and the two elongated spines of the preceding joints, may be peculiar to one sex, as a specimen in my collection has but a single spine, and the termi- nal joint is acute and not dilated. [Belongs to Tmesiphorus. — Lec] 2. P. RiPARius. — Reddish-brown ; elytra rectilinearly trunca- ted, half the length of the tergum ; tergum simple ; anterior tibia rectilinear. Inhabits Missouri. Vertex convex, with an impressed line each side : antennae, joints from the third to the eighth, inclusive, subequal ; ninth a 1824.] 236 ACADEMY OF NATURAL SCIENCES little larger, but hardly longer ; tenth transversely oval, double the size of the preceding one ; eleventh still wider, and nearly double the length of the two preceding ones conjunctly: maxil- lary palpi unarmed; terminal joint conic-securiform: thorax nar- rowed behind, not closely applied to the elytra; with a longitudi- nal, impressed line ; sides not angulated in the middle, but in- dented on the margin : elytra half the length of the abdomen ; humeral tubercle oblong : anterior tibia rectilinear : tergum con- vex, simple. Length more than one-twentieth of an inch. A little smaller than the preceding. It probably belongs to the genus Bryaxis of Leach. [Belongs to Batrisus. — Lec] [99] 3. P. DENTATUS. — Elytra nearly rectilinearly truncated, half the length of the tergum ; tergum simple ; anterior tibia arcu- ated. Inhabits the United States. Head blackish ; a small indentation above each antenna : an- tennae rufous ; joints, from the third to the eighth, inclusive, sub- equal ; ninth a little larger, but hardly longer ; tenth transverse, double the size of the preceding one ; eleventh oval, wider than the tenth, and as long as the 8th, 9th and 10th conjunctly : thorax nearly orbicular, slightly prominent on the sides, blackish ; an oval indentation at base, and an orbicular one each side : elytra reddish-brown, nearly half the length of the abdomen ; humeral tubercle oblong ; an impressed line on each elytron obsolete be- hind : tergum convex, simple, blackish : anterior tibia a little ar- cuated. Length one-twentieth of an inch. Var. a. Reddish-brown. Smaller than either of the preceding species. [A Bryaxis. — Lec] [Vol. IV. of' PHILADELPHIA. * 237 [From Vol. 4, 1825, pp. 307—345.] Descriptions of new HEMIPTEROUS INSECTS collected in the Expedition to the Rocky Mountains, performed by order of Mr. Calhoun, Secretary of War, under command of Major Long. Read June Ist, 1824. GRYLLUS Fabr. 1. G. iEQUALis. — Hemelytra spotted with brown ; wings pale yellowish at base, with a black band and dusky tip. Inhabits the United States. [308] Head varied with brown and light gray: thorax varied with brown and dull rufous, with a carinate line : hemelytra dark cine- reous, with numerous unequal small dark brown spots : wings sulphurous at base, then a black band arcuated behind so as nearly to reach the inner angle ; tip dark cinereous, darker at the angle, or with small fuscous spots on that part : feet pale cinereous, spotted with fuscous : hind thighs within with four black bands : posterior tibiae sanguineous. Length to the tip of the hemelytra, one inch and two-fifths. Not an uncommon species. The thorax is not gradually raised into a carina, but the line is abrupt and of little elevation. 2. G. NUBILUS. — Black ; wings glaucous. Inhabits Arkansa. Head with the frontal line not grooved ; thorax with a slightly and equally elevated line; hemelytra rather short; feet dusky, tinged with dull rufous : posterior pair black, the thighs with a whitish annulation near the tip : beneath pale. Found in abundance near the base of the Rocky Mountains, in company with the succeeding, and like it ascending into the atmosphere in great numbers. 3. G. BiviTTATUS. — A yellowish line each side above from the front to the tip of the hemelytra. Inhabits Arkansa. [309] Mouth white ; superior orbits yellowish : thorax with an ele- vated capillary line, and three transverse impressed ones, a yel- lowish marginal line each side : hemelytra with small dusky spots 1825.] 238 ACADEMY OF NATURAL SCIENCES each side, above margined with greenish yellow : wings pale green : feet pale, anterior and intermediate thighs somewhat ar- cuated, with a green line ; posterior thighs with a green line on the exterior side and another above, which is faintly marked by two pale spots near the middle, a dusky annulation near the tip ; posterior tibia green, pale towards the tip, and on the anterior side : abdomen pale with minute dusky spots; segments margined with dusky. Length to the tip of the hemelytra one inch and three-tenths. This species, with several others, occurred in great numbers near the mountains, and on one occasion we observed this species in company with several others, ascending to a great height in the air as if to commence a migration to a remote region. [Belongs to Caloptenus, and is identical with C /emoratun Burm. Handb. 2, part 2, 638. Acrydium flavovittatum Harris, Ins. Injurious to Veg. 140, is a small variety, very common in the Atlantic States, and occasionally mixed with the larger spe- cimens which occur in the western part of the country. It is very common on the salt marshes near Baltimore, and I have once or twice seen it in company with C. femurruhrum (Degeer), in considerable swarms in the air. [Dr. Harris makes a very singular mistake in comparing this species with Acridium oUvaceum Serv. — Uhler.J ACHETA Fabr. Leach. A. EXIGUA. — Head and thorax testaceous ; feet whitish ; ab- domen black. Inhabits Missouri, Head testaceous, hairy, with obsolete dusky lines above, con- tracted before the eyes into a [310] short, obtuse, conical process : front vertical, trilineate, lines fuscous, convivant at the mouth : antennae long, fuscous, pale at base : palpi white : thorax testaceous, hairy : hemelytra yellowish-white, right one entirely concealing the other : nervures (male) with but few anastomoses, at tip en- closing a large, oval, rugose, but membraneous space : feet whitish ; posterior thighs with a brown line on the exterior side ; posterior tibia with three pairs of alternate spines, and larger ones at tip ; abdomen black. Length about a quarter of an inch. A male. [Vol. IV. OF PHILADELPHIA. 239 Taken near the village of the Konza Indians. When dry, the head and thorax assume a light ferruginous color. TEIDACTYLUS Oliv. T. AriCALis. — Black, varied with white ; wings edged and tipped with blackish. Inhabits Southern and Western States. Body deep black : head with a line each side, passing over the eyes, two spots at the superior base, and a line on the vertex fur- cate before, whitish : thorax margin and several abbreviated lines on the disk, white ; feet banded and spotted with white, posterior thighs trifasciate with white ; posterior tibijB nearly rectilinear : elytra, exterior margin and common spot behind the middle, white: tergum fasciate with white. [311] Length more than one-fifth of an inch. This species is numerous on St. John's river, in East Florida and on the Missouri, as far as Council Bluff. It is always found on the moist shores not far distant from the water's edge. [This is Xya apicalis Burm. Handb. 2, 2, 741. — Uhler.] PENTATOMA Oliv. Latr. 1. P. ARBOREA. — Brownish-cinereous, punctured ; clypeus emarginate and bidentate ; thorax dentate and with a prominent truncated spine behind each side ; feet annulate. Inhabits Missouri. Body brownish-cinereous, with numerous black punctures ; head with a longitudinal obsolete elevated line, and an abbreviated one each side of its middle : clypeus emarginate at tip, lateral edge terminating in an angle near the tip : antennse, base of the second joint pale : thorax unequal before, dentated each side ; teeth irregular, unequal, acute; posterior angles extended into a prominent, dilated, slightly reflected, truncated projection, which has two or three small teeth : hemelytra with the central nervure conspicuous ; nervures of the membranaceous tip black, and with black arborescent lines in the interstitial spaces : wings dusky iridescent ; nervures black : feet black : thighs pale at base and annulate with pale near the tip : tibia annulate with pale : tarsi second joint pale : tergum deep purple, black impunctured ; [312] margin brownish cinereous, punctured, varied with transverse 1825.] 240 ACADEMY OF NATURAL SCIENCES abbreviated black lines placed triangularly, and pale : venter pale^ pruinous, with dusky points : stigmata each composed of three distinct black points placed obliquely : pectus and pospectus pale, dusky each side. Length less than three-fifths of an inch. A common species, and seems to approach Halys annulata Fabr., but it does not, in all respects, agree with the description of that species. 2. P CLANDA. — Pale yellowish; thorax with two spots, hemely- tra and scutel with a line, black. Inhabits Missouri. Head densely punctured, rufous, blackish at base : antennae rufous, blackish at tip : thorax pale yellow, with two large trans- verse brown spots, posterior margin brown ; posterior angles not prominent : scutel pale yellow, with a broad brown line, bifid before, hemelytra pale yellow on the basal portion with a brown line and inner edge ; tip blackish : beneath pale yellow : feet rufous : tibiae with a yellowish annulus : venter with two series of black spots, and on each side a brown vitta ; ultimate segment with only three spots. Length two-fifths of an inch. Var. a. Spots and lines of the upper surface, black ; venter with six series of black spots. Var. b. Sanguineous; head, two spots, and posterior margin of the thorax, disk of the scutel, hemelytra, pectus and feet, black; venter with six series of black spots. Var. c. Sanguineous; head, two spots and posterior margin of the thorax, disk of the scutel, hemelytra, pectus and feet, black ; venter black on the disk. A handsome species, subject to much variation. 3. P. EXAPTA. — Sanguineous; thorax with a black line; scutel black with a yellow margin. Inhabits Missouri. Head at base and antennae, black : thorax with a transverse black line before the middle ; posterior angles rounded, not prom- inent: scutel black, with a yellow margin, excepting at base: tergum blackish, with a rufous margin : hemelytra black, exterior [Vol. IV. OF PHILADELPHIA. 241 basal margin yellow : pectus more or less varied with black : tibiae blaek. Length about a quarter of an inch. 4. P. ruNCTiPES. — Pale olivaceous; thorax bilineate trans- versely with white ; scutel black, with a white margin. Inhabits the United States. Head black : antennae pale at base, and somewhat biannulate with whitish : proboscis white : thorax blackish before ; a slender^ transverse, abbreviated white line on the anterior submargrin ; an- terior and lateral edges white, the former abbreviated ; posterior angles rounded, not prominent : scutel, lateral and terminal nar- row margins [314] white : hemelytra with the exterior basal nar- row margin whitish : tergum black : beneath blackish-cupreous : feet white, with black points ; venter, margined with white. Length from one-fifth to one-fourth of an inch. A common species, inhabiting almost all parts of the Union, and may be frequently observed on the mullein. 5. P. PUNCTIPES. — Greenish-yellow, punctured ; thorax with prominent angles each side, behind ; membranaceous tip of the hemelytra with brown dots ; feet with black points. Inhabits the United States. Body greenish-yellow, punctured : clypeus slightly biemargi- nate at tip, small spot above the eyes impunctured : antennae pale, penultimate joint at tip and ultimate one black : rostellum nearly attaining the base of the posterior feet, with a longitudinal black line and tip : thorax, anterior lateral edge dentate ; teeth minute, subequal ; behind the middle each side extending into a promi- nent, subacute angle : scutel destitute of elevated lines, rather paler at tip : hemelytra upon the membranaceous tip punctured with brown, punctures orbicular, numerous: wings whitish, irides- cent ; brachial nervure fuscous, black towards the base, feet with numerous black points : tergum deep black, margin greenish-yel- low, with geminate, black, dilated lines, which unite with the color of the disk, but do not attain the edge. [315] Length half an inch. Not uncommon in Missouri and in Pennsylvania, and resem- bles P. ictericus Fabr. [The specific name has been inadvertently repeated. — Leg.] 1825.] 16 242 ACADEMY OP NATURAL SCIENCES 6. P. FACETA. — Green with a pale fulvous margin and longi- tudinal line. Inhabits Missouri. Body oval, green : head entire before : antennae, excepting the first joint, dusky : thorax with a pale fulvous lateral margin and fulvous edge ; a longitudinal pale fulvous line in the middle ; posterior angles rounded, not prominent : scutel not abruptly contracted in any part, with a longitudinal pale fulvous line on the middle : hemelytra with a pale fulvous lateral margin and deep fulvous edge : tergum blackish, with a fulvous margin. Length nine-twentieths of an inch. CYDNUS Fabr. 1. C. BILINEATUS. — Black, polished, with sparse lateral hairs ', tarsi dull testaceous. Inhabits the United States. Body deep black, polished : head with two longitudinal, paral- lel, approximate, indented lines, abbreviated at the vertex, the intermediate space somewhat resembling a carina ; lateral mar'gin with sparse black hairs : clypeus subentire, or obsoletely emargi- nate at tip : antennse and rostellum piceous : thorax a little nar- rowed before by a slightly arcuated lateral edge : lateral margin [316] sparsely hirsute; an indented transverse line on the mid- dle : posterior margin somewhat convex, edge slightly arcuated : scutel large, remotely punctured : hemelytra densely coriaceous at base, membranaceous tip white or pale brownish : wings pale : feet spinous, piceous-black : anterior tibise compressed, ciliated with spines : posterior pairs irregularly spinous : tarsi dark testaceous. Length from three-tenths to two-fifths of an inch. Not uncommon in Pennsylvania as well as in Missouri. [Belongs to u^thns Dallas. — Uhler.] 2. C. SPINIPRONS. — Dark reddish-brown : clypeus ciliate with spines ; anterior thighs with an oblique, linear, eraarginate spine. Inhabits Missouri. Body dark reddish-brown, punctured : clypeus armed on the edge with erect, equidistant, prominent spines : antennae pale reddish-brown, second joint minute : thorax with dilated punc- tures, obsolete on the anterior disk, a transverse indented line [Vol. IV. OP PHILADELPHIA. 243 on the middle, lateral edge with a few hairs : scutel neai-ly as long as the thorax, punctures dilated, tip acute : hemelytra reddish-brown, punctures approximate, membranaceous tip white : feet pale reddish-brown : anterior thighs with an oblique, robust, linear, cmarginate process near the middle beneath, and a small, robust spine near the tip ; tibiae with prominent rigid spines on the exterior edge : intermediate thighs mutic, tibiae armed with [317J moveable spines : posterior thighs with a slightly flexuose spine near the tip beneath, and two or three small tubercles at tip ; tibiae armed with a few moveable spines : postpectus blackish. Length three-twentieths of an inch. Found near Engineer Cantonment, common. [Belongs to Ammstiis Dallas. — Uhler.] COREUS Fabr. 1. C. ALTERNATUS. — Fuscous ', thighs spinous beneath ; mar- gin of the abdomen black, with five white lineolar spots j head mutic. Inhabits Missouri Territory. Body deep blackish-brown : eyes rufous, a moveable black pupil : stemmata sanguineous : antennae blackish, robust, two terminal joints rufous, equal : rostellum pale, tip black : thorax punctured, gradually elevated behind, attenuated before, anterior termination as wide as the base of the head, anterior lateral edge slightly dentate, posterior angles rounded : scutel of the male tinged with rufous : hemelytra tinged with rufous, punctured : feet black : tarsi rufous : thighs, a double series of hardly pro- minent, robust spines beneath, of which the two opposite termi- nal ones are much more prominent, distinct, and acute : abdomen, margin black, alternating, with five, oblique, white lines : tergum, disk sanguineous : male, posterior thighs much dilated, very ro- bust, slightly tuberculated above, terminal spines not more pro- minent than the [318] others, a large prominent spine on the inferior middle : posterior tibiae dentate towards the tip, refrac- ted in the middle, and with a robust, prominent acute spine on the angle. Length of the male more than four-fifths of an inch ; female nearly three quarters. 1825.] 244 ACADEMY OF NATURAL SCIENCES Somewhat similar to C. galeatus Fabr., but is considerably larger, the head is unarmed, and in other respects sufficiently distinct. It belongs to the genus Mictis of Leach. 2. C. ORDINATUS. — Head fulvous, with two black lines ; thorax with the lateral edges fulvous. Inhabits the United States. Head dull fulvous, with two broad, black, longitudinal lines : antennae fuscous : thorax dull fulvous, with numerous, irregular- ly disposed black punctures, lateral narrow margin fulvous, and with an obsolete interrupted or abbreviated dull fulvous line in the middle ; posterior angles rounded, not prominent ; posterior margin a little depressed : scutel colored and punctured like the thorax : hemelytra also dull fulvous, with numerous black punc- tures irregularly disposed ; membranaceous portion black : ter- gum on the lateral margin black, the segments fulvous at base : beneath pale fulvous, with a few black punctures : feet with nu- merous black points. Length three-fifths of an inch. This is one of the most common of our species : when taken it diffuses an odor which has been [319] compared to that of a ripe pear. I have found it in Pennsylvania, Missouri, and Florida. 3. C. ARMIGERUS [armiger]. — Brown, feet white, spotted with black : head spinous above the antennae ; margin of the tergum black, with five white lineolar spots. Inhabits Missouri Territory. Body brown above, beneath pale : eyes prominent, rufous : stemmata sanguineous; above the origin of each antenna, an elevated, prominent, acute spine, half as long as the basal joint of the antenna : antennae, first joint white, spotted with black, second and third black, white at base and tip, terminal joint rufous : thorax punctured, elevated behind, descending almost vertically and attenuating to the head; anterior lateral edge dentate, posterior angles dilated and terminated in an angle, from whence the posterior margin descends sinuously and ob- liquely, terminating in a short acute spine each side of the base : base transversely rectilinear: scutel with three black spots at base : hemelytra, a white oblique line in the middle on the mem- [Vol. IV. OF :?HILADELPHIA. 245 branaceous portion ; tip blackish : feet white, spotted with black ; thighs armed at the tip beneath, with two short acute spines : tergum sanguineous, base, tip, and margin black, the latter with five white oblique lines : venter pale, spotted with black. Length of ths female eleven-twentieths of an inch. [320] I have not yet seen the male of this species, it bears a general resemblance to C. galeatm Fabr. and is about equal to that species in magnitude, but it may be at once distinguished by the white transverse line at the base of the membranaceous portion of the hemelytra. 4. C. LATERALIS. — Pale reddish-brown, punctured : hemely- tra with spotted nervures; feet pale, spotted. Inhabits the United States. Body somewhat hairy, pale reddish-brown, with much dilated approximate punctures : head somewhat unequal, two obsolete impressed lines between the anteunse, a blackish spot behind the eye : eyes dusky, pale before : antennae brownish, with sparse hairs; terminal joint as long as the preceding one, dilated, with cinereous pubescence : thorax with three obsolete dusky spots before, and an impunctured whitish line abbreviated before; scu- tel with a longitudinal, impunctured whitish line : hemelytra, nervures with black spots, interstitial spaces membranaceous ; membranaceous tip immaculate, whitish : beneath with a distinct lateral red line ; feet hairy, pale ; thighs spotted with reddish- brown ; pectus rufous : venter yellowish or rufous. Length more than a quarter of an inch. Found near Engineer Cantonment, and is not uncommon in Pennsylvania. * [321] LYG^US Fabr. Latr. 1. L. BECLIVATUS. — Black, spot on the vertex, three on the thorax and reclivate line on the hemelytra, red ; a geminate white spot near the hemelytra. Inhabits Missouri. Body black, opaque, with a somewhat cinereous shade : head with a rufous spot on the vertex : thorax unarmed, with an ob- solete, indented, transverse, punctured line before; three rufous spots behind the middle, inner spot not attaining the base, outer 1825.] 246 ACADEMY OF NATURAL SCIENCES spot marginal extending from near the middle of the edge, to the posterior angle, and separated from the intermediate spot by a small velvet black one : scutel a little elevated on the basal disk : hemelytra with a rufous, somewhat reclivate line from the nume- ral angle to the tip of the coriaceous portion, a velvet black spot on the middle, and a minute one at the the inner basal angle ; membranaceous portion deep black, polished ; a large rounded geminate spot in the middle edge, and two small subtriaugular ones at base, white : venter rosaceous,- a double series of spots beneath, and one series each side, black. Length rather more than two-fifths of an inch. Resembles L. ttircicus Fabr., but is at once distinguishable by the large white spot on the membraneous moiety of the hemely- tra, which is precisely [ 322 ] similar to that on the corresponding portion of the hemelytra of L. punctum Fabr. 3. L. TRIVITTATUS. — Black, thorax trilineate, and hemelytra marginate with rufous. Inhabits Missouri. Body black : eyes and stemmata sanguineous : thorax mutie ; two indented transverse lines near the head, of which the ante- rior one is curved in the middle ; three bright rufous lines, of which two are marginal; posterior edge obscurely rufous : hem- elytra, coriaceous portion with a rufous exterior and posterior margin,membranaceous tip immaculate: trochanters rufous: ter- gum rufous with three lateral black punctures : venter, margin and middle rufous. Length nine-twentieths of an inch. Taken at Engineer Cantonment. 3. L. BiCRUCis. — Red; head, feet, anterior part of the thorax and tips of the hemelytra, black ; inner edges of the hemelytra forming a yellow cruciate mark. Inhabits the United States. Body red : head black : stemmata remote, inserted near the eyes; projections for the reception of the haustellum, whitish : thorax mutic, posterior angles rounded, not sallient, a large trans- versely oblong-quadrate, black spot before the middle, not attain- ing the anterior or lateral edges, partially interrupted in its mid- dle by a reddish [ 323 ] subcruciate line ; posterior edge yellow- [Vol. IV- OF PHILADELPHIA. 247 ish ; seutel black, an indented, large, triangular, paler spot each side on the disk : hemclytra, membranaceous tip black with a whitish edge ; coriaceous portion red with a lineolar yellowish margin, which on the costal edge becomes red towards the hume- rus, inner submargin and edge with a black line : pectus and postpectus black, segments broadly margined with pale : feet black : stigmata and anus black. Length about seven-twentieths of an inch. Sometimes occurs in Missouri ; I have also received a speci- men from Mr. A. G. Oemler, of Savannah, Georgia. 4. L. 5-SPiNOSTJs; — Obscure rufous : posterior thighs five- spined ; tergum red, margin lineate with black. Inhabits the United States. Body dull rufous, minutely and densely punctured : head tri- angular : stemmata sanguineous : antennge, second and third joints black at their extreme tip, fourth joint dusky, pale at base : rostellum pale, black at tip ; seta3 black : thorax obsoletely indented longitudinally in the middle and transversely before the middle ; posterior angles salient, acute, blackish at tip : seutel pale at tip : feet pale rufous, whitish at base : posterior thighs more robust, rufous at tip, five-spined beneath : pectus, post- pectus and head beneath, black in the [324] middle : tergum red : margin with about four pale spots, and black lineolar edges to its segments. Length of the body more than half an inch. 5. L. EURiNUs. — Blackish, hairy, punctured ; tergum black, disk rufous, margin with four yellowish spots ; posterior thighs three-spined. Inhabits Missouri and Arkansa. Body blackish, hairy, punctured : head triangular : eyes promi- nent : antennae, second and third joints dull testaceous, blackish at their tips : thorax densely punctured, mutic : hemelytra black- br'own : feet black : tibiae and first joint of the tarsi, dull testa- ceous, with black tips : posterior thighs three-spined beneath, and one or two smaller spines at tip : abdomen, reflexed margin with four yellowish spots : tergum rufous on the basal disk. Length about half an inch. 1825.] 248 ACADEMY OF NATURAL SCIENCES The body of this insect as well "as the preceding, is long and narrow, the diameter of the head which passes through the eyes is but little shorter than the breadth of the thorax. ACANTHIA Latr. A. INTERSTITIALIS. — Black, hemelytra with a few whitish spots, tip whitish with black nervures and spots. Inhabits Missouri. Body leaping, black-brown, with short yellowish hairs : eyes large, deep castaneous, whitish at [325] the anterior base: stemmata reddish-yellow : clypeus and labrum whitish : hemely- tra deep black, with distant, very short yellowish hairs at base, four or five hyaline whitish spots on each hemelytron ; middle of the tip of the coriaceous portion hyaline, membranaceous tip hyaline, nervures deep black, with a blackish oblong-quadrate spot between each pair ; margin dusky, with a black spot at the ex- terior tip : feet pale before and black behind : tibia somewhat annulate : wings white. Length more than three-twentieths of an inch. Not uncommon on the shore of the Missouri river, skipping nimbly about. TINGIS. T. OBLONGA. — Head with three elongated acute spines; ner- vures brown ; exterior margin of the hemelytra white. Inhabits Missouri. Body elongate, narrow, whitish : head with three elongate, linear acute spines, of which two are above the antennae, and one between them : eyes black : antennse testaceous, terminal joint blackish: thorax and scutel conjunctly, black in the middle; three elevated white lines and reflected margin ; a much elevated, acute crest at the anterior termination of the intermediate line : hemelytra, a double slightly elevated line, confluent at tip and at base, and including a small blackish dot; [326] nervures of the tip and inner margin black-brown ; exterior margin white imma- culate : pectus, postpectus and venter black : feet pale testace- ous. Length nearly one-eight of an inch. [Vol. IV. OP PHILADELPHIA. 249 ARADUS Fabr. A. QUADRILINEATUS. — Brown ; antennae robust ; clypeus bifid ; thorax quadrilineate, edges irregularly and minutely dentate. Inhabits Missouri. Body dull light-brown, opaque : head with two longitudinal indented lines, and two small indented black spots between the eyes : clypeus trifid at tip, intermediate division longest, obtuse at tip, exterior divisions acute at tip, hardly attaining the base of the second joint of the antennae: eyes very prominent : an- tennae robust, two terminal joints darker, ultimate one shorter and less dilated than the preceding one : thorax transversely ob- long-oval ; four elevated, parallel, equidistant, longitudinal lines, and a lateral, abbreviated one; lateral edge slightly reflexed and dentate, with numerous minute, irregular teeth : scutel large, im- pressed each side of the middle, and near the tip : hemelytra minutely dentate on the exterior basal edge : feet dusky, pale near the incisures. Length rather more than a quarter of an inch. [327] REDUVIUS Fabr. 1. R. RAPTATORius. — Obscure brownish ; head, thorax, and anterior feet, spinous, the latter raptatory. Inhabits the United States. Body oblong, obscure brownish : head contracted above the eyes, spinous ; six larger spines before the contraction, placed two and two, and two or four larger ones behind the contraction : stemmata sanguineous : eyes inserted in the lateral middle of the head : antennse inserted near the tip of the clypeus, with dilated annuli of dull rufous and pale : rostellum slightly arquated, pale : thorax contracted in the middle, obsoletely canaliculate, with short, numerous, obtuse spines before the contraction, and dense granuli behind it ; posterior angles hardly prominent : feet some- what pale, subannulate, granulated ; anterior pair raptatory ; thighs unequal, anterior pair robust, villous, dusky, armed with an erect, prominent, obtuse spine near the tip above, and a double series of ten equal, equidistant, acute spines beneath ; anterior tibiae with a double series of six similar spines on the inner side : tergum rufous on the disk, margin varied with black and pale : 1825.] 250 ACADEMY OF NATURAL SCIENCES liemelytra^ membranaceous tip witli a longitudinal reddish-brown line. Length more than nine-twentieths of an inch. [328] Observed to be not uncommon in Missouri, as well as in Penn- sylvania. 2. R. SPissiPES. — Thorax and hemelytra light reddish-brown, edged behind with white ; venter black, incisures whitish ; feet thick. Inhabits Arkansa. Head black, posterior lobe with two tubercles : thorax light reddish-brown; anterior lobe with dilated, black, oblique, or arcuated lines, of which some are confluent ; posterior lobe hardly more elevated than the preceding, with a black posterior submar- gin and a white posterior margin : scutel black, margined with white, and tipped by a few hairs : hemelytra, coriaceous portion light reddish-brown, with a narrow whitish posterior margin, membranaceous portion black or dark fuscous : feet thickened, black, hairy : coxa? bright red : abdomen black, margin and band on each segment, white. Length thirteen-twentieths of an inch. The feet resembles those of R. crassipes Fabr., but it is a very distinct species. CORIXA Geoff. 1. C. INTERRUPTA. — With black and yellowish transverse liueations ; feet pale ; face pale green. Inhabits Missouri. Head pale green : eyes large, triangular, reddish-brown : tho- rax transversely lineated with about twenty-two blackish and pale yellowish, equal, [329] alternate lines: hemelytra rounded at tip, with alternate, numerous, abbreviated, transverse, black- ish, and interrupted, pale yellowish lines; lines near the tip much undulated and irregular ; margin with about four obsolete blackish spots, which appear to be still more faintly prolonged into fasciae : epipleura pale, destitute of the transverse lines, but the obsolete spots are visible upon it ; edge blackish : wings white : feet pale : tergum black, margin pale : pectus and post- pectus testaceous ; a large black spot between the anterior pairs of feet. [Vol. IV. OP PHILADELPHIA. 251 Lengtli of the body half an inch. This species equals 6'. Geoffroyi Leach, in length, but is less robust. 2. C. ALTERNATA. — With black and pale transverse lineations; face and feet pale whitish ; beneath black. Inhabits Missouri. Head pale greenish-white: eyes triangular, large, reddish- brown, dark : thorax black, with about eight transverse, pale, equal lines : elytra with very numerous, alternate, interrupted, black and pale yellowish lines, which become more irregular and undulated towards the tip : wings white : epipleura pale, imma- culate, edge blackish : feet whitish : pectus and postpectus black : tergum black, with a white margin : venter black, with a pale margin and terminal incisures. '1 Length a quarter of an inch. [330] Very much resembles the preceding, but is much smaller, darker, and the prevailing color beneath is black. (^CICADA Oliv. Latr. O 1. C. PRUINOSA. — Body above varied with greenish and black, beneath pruinose : abdomen with a white spot each side, at base, one at the middle margin and another near the marginal tip. Inhabits the United States. Wings, nervures of the hemelytra green to the middle, inner edge of the costal nervure brownish, nervures beyond the middle brownish : anterior thighs varied with dusky ; anterior pairs of legs dusky at the exterior tip : tarsi varied with dusky : tergum black : segments destitute of differently colored posterior margins, basal segment with a white pruinose spot each side of the back, another transversely elongated and attenuated one on the lateral base of the third segment, and another upon the lateral base of the caudal segment : venter dusky in the middle : caudal seg- ments beneath testaceous, dusky near the middle tip. Length two inches, to the tip of the hemelytra. Found on the Missouri ; it is also very common in Pennsyl- vania, and much resembles C. tibicen of Fabr., but it differs in being pruinose beneath, and in having white abdominal spots, 0 2. C. MARGINATA. — Body above varied with [331] greenish 1825.] 252 ACADEMY OF NATURAL SCIENCES and black, beneath pruinose ; tergum black, the segments with yellowish posterior margins. Inhabits Missouri. Head and thorax greenish-yellow, slightly varied with black : scutel black, with the W and elevated x greenish-yellow : hem- elytra with the nervures as far as the middle, green, beyond the middle, brown : tergum black, the segments yellowish-brown on their posterior margins ; all beneath testaceous, covered with a mealy white. Length more than two inches and a quarter to the tip of the hemelytra. Differs from the preceding by being larger, by having the ab- dominal segments margined, and by being destitute of the white spots on the tergum. The basal spine of the anterior thighs is much more oblique than in the preceding species. This cannot be the"'costo?ts, if the descriptions of that species are correct. 0 3. C. DORSATA. — kScutel varied with blackish, greenish-yellow and white ; tergum black, a dorsal and lateral line of white spots. Inhabits Missouri. Head and thorax varied with greenish-yellow and black : scutel blackish-chestnut, the W and x marks greenish-yellow, lateral lines of the W white near the thorax, a white line from the humerus is interrupped by the anterior lines of the x, and also in the middle between these two lines, a white [332] spot be- tween the two lateral lines of the x : tergum black, a dorsal line of white spots and a marginal line of white spots which are con- tinued over the terminal segment, the lateral spot of the first and second segments is very much dilated and confluent, that of the third segment is much elongated and attenuated towards the back, a white oblique spot on the first segment each side of the dorsal line ; all these white marks are pruinose. Length two inches to the tip of the hemelytra. Found in the prairie near the Konza village, in which vicinity it is rather common. Its note is harsher than that of ourpriti- 7iosa, and is generally uttered when the animal rises in flight, alarmed on the approach of the traveller. 0 4. C. AURiPERA. — Body covered with short golden pubescence; beneath hairy. Inhabits Missouri. [Vol. IV. OP* PHILADELPHIA. 253 The nerviires of the hemelytra are yellowish to the penultimate anastomosis, beyond which they are brown; the two particular anastomoses are strongly marked with blackish : head testaceous : thorax but little varied with black : scutel black, with the usual testaceous lines : tergum black, densely covered with the golden hair : beneath pruinose. Length one inch and a half nearly, to the tip of the hem- elytra. This species differs from the preceding in being [333] smaller, and in having the golden pubescence, which is more dense on the head and thorax. Found near the Konza village. lJ 6. C. PARVULA. — Anterior thighs with three parallel, subequi- distant spines. Inhabits Missouri. Body dull testaceous : head with a dilated dusky line each side on the front : stemmata reddish-yellow : antennae rather large, longer than the head : labrum with dusky rugae and a longitudinal impressed line, abbreviated at the termination of the rug^e : thorax indistinctly varied with black, the lateral edge not prominent : scutel quadriliueate, lines dilated, abbreviated, intermediate ones very short, terminal x hardly elevated : hem- elytra, with a reddish-yellow reflection : nervures blackish be- yond the middle ; costal nervure very conspicuously so ; no mar- ginated anastomosis; segments of the tergum dusky at base : tjiighs and trochanters varied with black: anterior thighs tri- dentate ; teeth prominent, subequidistant, parallel, posterior one longest, anterior one shortest. Length to the tip of the hemelytra seven-tenths of an inch. A very small species. I have a specimen from near the Rocky Mountains, which is entirely green, it is a female, and probably of the same species with the above. Its length to the tip of the hemelytra, is four-fifths of an inch. [334] 0 6. C. SYNODICA. — ^Black, varied with pale testaceous; tergum annulate. Inhabits the base of^the Rocky Mountains. Body above, black, varied with pale testaceous : head with a transverse line before the eyes, and about three triangular spots 1825.] • 254 ACADEMY OP NATURAL SCIENCES at base, testaceous : clypeus above destitute of grooves : thorax sinuous behind, the posterior transverse impressed line placed very near the|posterior edge ; posterior angles prominent, rounded, lateral edge obtusely emarginate before the posterior angles ', margin, two oblique lateral lines and a longitudinal dorsal one testaceous : scutel with a lateral marginal line, the elevated x and two dorsal dilated lines, testaceous; the dorsal lines are merely emarginate on the inner side, and do not form the W ; at the tip of each anterior line of the cc is a conspicuous, black, im- pressed puncture, and behind the x the posterior edge of the scutel is visible and testaceous : beneath, very pale testaceous ; rostrum black each side of the grooved base, in the middle and at tip : feet lineated with black ; anterior thighs bisj)inouS": tergum with narrow posterior reddish-brown margins ; terminal and anal segments testaceous, the latter with two black spots : nervures of the wings testaceous, beyond the middle fuscous. Length to the tip of the hemelytra less than one inch. Dr. James and Mr. Peale observed this species in great num- bers in one locality, at the base of [335] the Rocky Mountains: but it did not occur elsewhere. t^ ^ FULGORA. F. SULCIPES. — Thorax with a few black punctures ; nervures of the hemelytra margined with black ; thighs with black grooves. Body pale : head yellowish-green : rostrum elongated, as long as the head and thorax, with an elevated line and edges, two black points between the eyes, beneath between the eyes three lines and edges elevated : thorax with a large black spot behind each eye, and several distant black points, two conspicuous black points between the larger ones : hemelytra with pale nervures, which are margined with black : feet with black grooves; antei'ior and intermediate tibiae with an annulus and tip and tarsi black ; posterior tibiae seven-spined, besides the terminal spinous semi- fascia. Length to the tip of the hemelytra more than three-tenths of an inch. A small species which I do not suppose to possess the power of yielding light. It inhabits the Arkansa near the Rocky Moun- tains. [Vol. IV. OF PHILADELPHIA. 265 V ° FLATA Fabr. C> 1. F. BiviTTATA. — Greenish-yellow ; a lateral reddish-brown line confluent on the hemely tra ; hemelytra vertical. [ 336 ] Inhabits the United States. Body pale green : head dusky, brownish before : eyes red : an- tenna and stemmata yellowish-white ; seta black : thorax and scutel glabrous, with a broad, lateral, dark reddish-brown vitta : hemelytra vertical, much dilated, pale greenish-yellow, paler to- wards the costal margin, inner margin dark reddish-brown : wings white : pectus and caudal segments whitish : feet, anterior pairs brownish : venter pale green. Length three-tenths of an inch. Found near Engineer Cantonment on the Missouj'i river; it also occurs in Pennsylvania ; it is rather smaller tlfan F. relicta Fabr., and the hemelytra are more dilated. 2. F. STIGMATA. — Black ; wings white, with a black stigma and transverse spot at base. Inhabits Missouri. Body black : vertex triangular, distinguished by an elevated edge, and an abbreviated, carinate iine : thorax acutely emar- ginate behind, and with an elevated edge and dorsal carina, carina abbreviated before, a squamula covering the origin of the hemelytra : scutel tricarinate, intermediate carina abbreviated behind : hemelytra white, a common black band near the base, becoming brown towards the suture, a black stigma, which is margined before with white : nervures with white and blackish alternate dots, the latter setigerous : tibiae pale brownish. [337] Length a quarter of an inch nearly. Very numerous at Engineer Cantonment on the Missouri. ^ELPHAX Fabr. ^ D. TRICARINATA. — Whitish ; thorax yellowish ; hemelytra with two oblique bands and spot; nervures spotted. Inhabits Missouri. Body whitish : head above, pale green : eyes deep brown, pro- foundly emarginate beneath : antennae brown, longer than the head, second joint rather longer than the first: seta longer than 1825.] 25B ACADEMY OF NATURAL SCIENCES the antennae : front brown, deeply impressed witli the grooves of the rostrum, presenting three prominent carinas : rostrum with a fuscous band on the middle, and spot near the tip : thorax yel- lowish : hemelytra white, an obsolete band at base ; an oblique distinct one on the middle united to a curved one beyond the middle, which attains the tip and incloses a linear oblique spot near the tip of the costal margin : feet spotted with fuscous : ab- domen pale yellowish : tergum blackish in the middle. Length of the body and wings three-twentieths of an inch. Came on board of our boat as we ascended the Missouri, in considerable numbers on the third of July. The hemelytral fascia, may, on many specimens, be traced into the form of the letter W, [338] the oblique spot being included between the posterior curve of the letter and the costal margin. ^ CERCOPIS Fabr. 1. C QUADRANGULARis. — Brownish-cinereous ; elytra with two oblique brown bands confluent at the outer margin : beneath black ; feet annulate with pale. Inhabits Missouri. Body brownish-cinereous, covered with dense, minute hairs : head obsoletely spotted : eyes fuscous, a pale longitudinal line on the middle, in which is a brown central line : stemmata indis- tinct, black : thorax emarginate at the anterior angles for the re- ception of the eyes, and deeply emarginate behind for the recep- tion of the scutel ; a double series of obsolete, indented spots before : scutel, tip and basal angles acute : hemelytra pale brown- ish-cinereons ; an oblique black-brown fascia from the inner basal angle, is confluent at the middle of the exterior margin, with an oblique fascia which terminates near the sutural tip ; tip with a small blackish curve ; region of the humerus dusky ; beneath black : feet black : thighs annulate with pale ; posterior pair of tibiae pale, armed with two robust spines behind, and numerous small ones at tip ; posterior tarsi armed with spinules at the tips of the first and second joints beneath : abdomen black; tail pale beneath. [339] Length more than three-tenths of an inch. O 2. C. OBTUSA. — Head and anterior part of the thorax pale, [Vol IV. OP rHlLADELPIIIA. 257 with tliree transverse lines : wings varied witli brown and pale. Inhabits the United States. Body short, oval : head pale yellowish, an elevated, reddish- brown, transverse line between the eyes, and before the stein- niata : front with about nine parallel, equidistant, reddish-bi'own lines which are interrupted in the middle, and abbreviated at the cavity of the antennae : antennae placed in a deep cavity, beyond which the seta only projects ; head beneath black : thorax pale yellowish before, reddish-brown and rugose with continuous lines behind, anterior edge elevated, reddish-brown ; a reddish-brown transverse band on the middle : scutel pale reddish-brown : hcme- lytra varied with fuscous and pale, generally forming a band on the middle, which is more distinct on the costal margin, spot at tip and larger one at base ; nervures dark brown : feet black, joints whitish : tibia and tarsi whitish : posterior tibiae bispinous behind, of which one is very robust. Length rather more than one-fifth of an inch. Female, colors generally paler, with the pectus and abdomen whitish. Very common near Council Bluff, and is also found in Penn- sylvania. The band of the hemelytra is sometimes indistinct or wanting, and there are three brown dots near the tip. [ 340 ] c TETTIGONIA Oliv. Lam. Latr. ^'Ol. T. 8-LiNEATA. — Pale greenish-white, lineate with rosaceous; nervures of the hemelytra rosaceou.s. Inhabits Missouri. Body pale greenish-white : head quadrilineate with rosaceous, the two intermediate lines double before the stemmata, and witli an obsolete spot behind them : stemmata rosaceous : eyes a darker red : thorax minutely rugulose transversely ; six or eight rosa- ceous lines, the two lateral ones dilated, submarginal : scutel transversely rugulose, four rosaceous lines : hemelytra with the nervures and costal margin rosaceous ; wings, nervures rosaceous ; tibiae rosaceous, spines of the posterior pair white. Length rather more than seven-twentieths of an inch. A male. y^fl Var. a. Rather larger ; color pale. greenish ; those parts which JtijP^^' are rosaceous in others, are yellowish in this variety. ' 1824.} 17 268 ACADEMY OF NATURAL SCIENCES Near Engineer Cantonment on the Missouri. O T. LIMBATA. — Body deep black ; side edged with white. Inhabits Missouri. Body deep black, punctured : a white lateral line from the eye to the tail : head before and beneath with minute white points : eyes whitish beneath : thorax with a transverse series of four [341] larger impressed punctures, the exterior ones with a ru- fous spot, and resembling stemmata; a white lateral line inter- rupted by a yellow spot over the interval between the two ante- rior pairs of feet : scutel impunctured, two rather large impressed dots, and a transverse impressed line on the middle; posterior portion transversely rugulose : hemelytra with large distinct, impressed punctures : wings whitish ; nervures and base black : feet, spines of the posterior tibiae not very prominent or rigid. Length more than a quarter of an inch. Near Engineer Cantonment on the Missouri. 1^3. T. MIXTA. — Dull blackish-brown ; elytra with obsolete minute pale punctures ; tergum deep black ; feet annulate with pale spots. Inhabits Missouri. Head rugose, the lines somewhat longitudinal : stemmata rufous, placed on the anterior margin ; first joint of the antennae pale at tip : labrum irrorate with pale, and two larger spots at base : thorax transversely rugose and with an anterior series of punctures, lateral edge behind the eye white : hemelytra densely rugose, with a few pale, minute spots on the nervures, and rather larger ones on the inner and terminal margin ; two abbreviated whitish lines on the humeral origin of the nervures; (when viewed towards the light, the whole wing is irrorate with pale hyaline points :) wings blackish, emarginate at tip ; nervures fuscous : [342] tergum deep black, edge of the segments pice- ous : pectus deep black, segments generally edged with whitish : feet, anterior pairs annulate near the tip of the thighs with whitish spots ; tibiae with two or three whitish spots ; posterior pair of feet paler beneath: venter irrorate with pale points, lateral segments with a longitudinal pale line on each, and pale inferior edge ; caudal segment with large, dense, pale spots. Length less than three-tenths of an inch. [Vol. IV. OF PHILADELPHIA. 259 o 4. T. OBLIQUA. — Body yellowish-white, with two sanguineous Hues, connivent upon the head and scutel ; hemelytra white, with two sanguineous Hnes. Inhabits the United States. Body pale yellowish-white : head with two dilated sanguineous lines, connivent before : antennae, seta as long as the head and thorax, dusky : thorax with two sanguineous lines : scutel with two lines and tip sanguineous : hemelytra whitish, an oblique line from the base slightly refracted on the thinner margin, and terminating behind the middle of the margin ; an oblique longi- tudinal line on the disk, a more abbreviated, obsolete, subcostal line, and a costal line from the base to the middle of the edge, sanguineous: feet whitish : tail rosaceous. Length rather more than one-tenth of an inch. Found at Engineer Cantonment, and is also common in Penn- sylvania. [343] o 5. T. COMES. — Pale yellowish, with sanguineous spots. Inhabits Missouri. Body pale yellowish : head, a transverse sanguineous line, pro- foundly arcuated in the middle, and a smaller transverse spot be ■ fore : eyes fuscous : thorax with three sanguineous spots, the lateral ones smaller, and the intermrdiate one arcuated : scutel, a sanguineous spot at tip : hemelytra yellowish-white, spotted with sanguineous ; spots arranged two at base of which the outer one is small, and the inner one elongated and abruptly dilated on the inner side at tip ; two upon the middle, of which the out- er one is elongated in a very oblique line ; two behind the mid- dle, of which the inner one is obliquely elongated, and the outer one smaller, and interrupted ; and a transverse linear one near the tip, ramose upon the nervures : feet whitish. Length to the tip of the hemelytra, one-ninth of an inch. The line and spot on the head and the spots of the thorax are sometimes obsolete, but always visible, and the latter are some- times connected by curving towards the anterior edge of the tho- rax. The spots of the hemelytra are also sometimes slightly in- terrupted, or connected into four oblique bands. Q G. T. TRIFASCIATA. — Pale yellowish-white ; elytra [344] ir- rorate with reddish and somewhat trifasciate with dusky. Inhabits Missouri. 1825.] 260 ACADEMY OF NATURAL SCIENCES Body pale yellowish-white : head with two or three obsolete dull sanguineous spots on the vertex in the form of curves or circles : eyes dusky : thorax, a sanguineous line abbreviated be- fore, and an obsolete curve at the anterior angle : hemelytra whitish, irrorate with sanguineous j a dilated, brownish, inter- rupted, subbasal band ; an obsolete interrupted band behind the middle, upon the posterior costal termination of which is an ab- breviated sanguineous line, and an oblique blackish band near the tip ; a large quadrate white in\maculate spot on the middle of the costal margin 3 humeral base white, immaculate : tei'guin dusky at base : feet white. Length to the tip of the hemelytra one-eighth of an inch. The spots of the head and thorax are sometimes hardly dis- cernible, and the intermediate band is often so faint and inter- rupted as to be overlooked. 07. T. BASiLARis. — Pale yellowish, varied with sanguineous; elyti'a reddish-brown at base. Inhabits Missouri. Body pale yellowish : head obsoletely varied with sanguine- ous : eyes dusky or black : thorax dusky behind : anterior mar- gin with four or five obsolete sanguineous spots : scutel dusky reddish-brown or sanguineous at tip : hemelytra with a broad band of reddish-brown at base ; a spot on the middle of the thinner margin, then an oblique line, and another oblique line towards the tip, sanguineous; at the inner extremity of the latter is a very minute black point. Leno-th to the tip of the hemelytra, one-ninth of an inch. [From Jour. Acad. Nat. Sci., Philadelphia, Vol. .5, 1S2.5, pp. 32—47.] Descriptions of New Species of HISTER and HOLOLEPTA, inhabiting the United States. Read May 10, 1825. HISTER. Family 1. — Head with a transverse stria ; thorax with one or two striae ; tibiae deutated. A. Thorax with two lateral striae, entire or one abbreviated. •j" Elytra with the marginal stria. [Vol. V. OP PHILADELPHIA. 261 1. H. MEMXONius. — Inner thoracic stria abbreviated a little beyond the middle ; elytra, each with a basal puncture. Body black, somewhat polished : head slightly convex, arcu- ated line very distinct : mandibles a little prominent : antennae dull piceous : thorax with the inner stria abbreviated at about two-thirds the length of the thorax, a very short impressed line on the middle of the base : elytra with the marginal and four dorsal striae entire ; the fourth hardly reaching the base ; fifth less than half the length of the elytrum ; sutural stria more than half the length of the elytrum ; an obvious impressed puncture at base equidistant from the fourth stria and the scutel : feet piceous : anterior tibiae quadridentate. Length nearly one-fifth of an inch. I received this species from Dr. J. F. Melsheimer, under the name I have adopted. The punctures of [33] the elytra are much nearer to the base than those of the senegalensis as repre- sented by PaykuU. [Evidently a distorted specimen of H. tmmiuiis Er. , with the posterior part of the inner thoracic stria deficient. I formerly considered it as H. iuterruptus Beaiiv., (ohtusatus Harris,) but that species is much too large. — Leg.] 2. H. DEPURATOR. — Inner thoracic stria longer; elytra, mar- ginal stria obsolete ; dorsal striae three. //. imicolor Melsh, Catal. Body black, polished ; head slightly convex, arcuated line very distinct : mandibles a little prominent : antennae piceous : thorax with the exterior stria a little shorter than the inner one, which extends to the basal margin : elytra, marginal stria obsolete, con- sisting only of a series of punctures which extend no further than the middle ; dorsal strife three, entire ; fourth stria consisting of from nine to twelve impressed points, not extending beyond the middle ; fifth stria very short, obsolete, and consisting of two or three impressed points ; sutural stria abbreviated at the middle, generally interrupted at the posterior tip into a short series of punctures : anterior tibiae tridentate ; terminal tooth slightly emarginate ; superior tooth often obsolete. Length rather more than one-fourth of an inch. Var. a. Marginal line obsbletely continued by the humerus in punctures. 1825.] 262 ACADEMY OF NATURAL SCIENCES Van b. Ferruginous. Altogether distinct from the unicolor of Fabr., which has the exterior marginal and abbreviated striae very distinct, and the an- terior tibias six toothed. Dr. J. F. Melsheimer has given it the name which I adopt. It is a very common species, inhabiting throughout the Union. I obtained a specimen [34] in Arkansa. It differs from H. thoracicus Payk., by having the sutural stria. 3. H. ARCUATUS. — Elytra with a large rufous lunate vitta ; anterior tibia with two entire teeth. Body black, polished : head with the transverse line very dis- tinct : antennae tipped with fulvous : thorax ciliated each side with yellowish hairs ; striae entire, reaching the base and not un- dulated near the tip : elytra with a broad rufous vitta, com- mencing at the middle of the base, where it is dilated, and curving, so as to reach the sutural stria near the tip; marginal stria very distinct, entire ; three dorsal striae entire ; fourth and fifth ab- breviated, not reaching the middle ; sutural striae extending rather beyond the middle ; a slight transverse indentation near the tip : thighs bright rufous : anterior tibiae with two very prominent entire teeth. Length one-fourth of an inch. Var. a. Transverse line of the head not very obvious ; fifth Btria of the elytra obsolete. This species is rather rare. In its general appearance as re- spects color, it resembles the si7iuatus Panz., which, however, is destitute of the marginal stria. The variety occurred in Arkansa. 4. H. BIFIDUS. — Thoracic striae entire ; marginal and four dorsal striae entire ; an oblique abbreviated stria at base. Body black, immaculate : head with the transverse line very distinct j an obsolete, longitudinal line visible in a particular in- sidence of light : antennae with [35] the tip of the clavum pale : thorax, strije entire, not approaching at tip : elytra, marginal Stria entire, near the base exterior to the humerus, bifid and di- raricated ; an abbreviated, very oblique stria from the humeral angle, inwards towards the first dorsal stria ; dorsal striae four, entire ; fifth not reaching the middle ; sutural stria extending beyond the middle ; an abbreviated, very oblique stria at base, being the origin of the very widely interrupted fifth stria : autc- [Vol. V. OF PHILADELPHIA. 263 rior tarsi threee toothed, the intermediate tooth largest, three smaller teeth above. Length less than one-fifth of an inch. From the character of the fifth stria this species might be mis- taken for the interruptus of Beauvois, but it is a much smaller insect, and the interruptus has two abbreviated striae at the base of the elytra. It is an inhabitant of Missouri ; I obtained two specimens when with Major Long's party in that region. ■j"}". Elytra destitute of the marginal striae. 5. H. INDISTINCTUS. — Thoracic striae entire ; dorsal strise four, entire; fifth stria abbreviated, obsolete ; sutural stria slight. Body black, immaculate : head with the transverse line very distinct : thorax with an indentation on the middle of the poste- rior submargin ; lateral strias entire and not approaching at their tips: elytra with four entire dorsal striae; fifth abbreviated, more or less obsolete, generally consisting of five or six punctures ; sutural stria not deeply impressed, extending [36] rather beyond the middle, and not reaching the tip : anterior tibiae tri- dentate, terminal tooth largest, emarginate. Length less than one-fifth of an inch. B. Thoracic stria single. 6. H. SEDECiMSTRiATUS. — Dorsal striac entire ; fifth connected to the sutural at base. Body black, immaculate : head with the transverse line dis- tinct : antennae ferruginous, paler at tip : thorax with the stria entire and well impressed : elytra with the dorsal and sutural striae entire, the latter uninterruptedly connected with the fifth at base : marginal striae two, exterior one entire, inner one ab- breviated at the termination of the small oblique line ; terminal margin with small profound punctures : feet piceous : anterior tibiae tridentate. Length more than three-twentieths of an inch. This species is not uncommon, and seems to extend to many re- mote parts of the Union, as I obtained a specimen in Missouri. The fifth and sutural striae of the elytra unite at base as obviously as those of the VZ-ntrifftns of Europe and Africa ; it is, therefore, .somewhat similar to the amcricanus of Paykull, which, however, differs by being altogether destitute of the marginal striae of the 1825.] 264 ACADEMY OF NATURAL SCIENCES elytra, aud by having two thoracic strse, though one of them is much abbreviated. It may be useful to state in this place, that Paykull has represented his amei-icanus as having the sutural striae widely interrupted at base from the basal termination of the fifth stria; in this character [37] he is, perhaps, correct, as respects a few specimens, but in most individuals the connection can be traced, with the exception of a very short interval of ob- solete interruption. 7. H. OBLIQUUS. — Elytra with an oblique rufous spot at tip ; lateral thoracic stria interrupted from the anterior one. Body black : head with the transverse line angulated in the middle: antennae rufous : thorax, an orbicular indentation at the angle formed by the anterior and lateral striae, which do not join : elytra with a large oblique spot on the exterior tip, extend- ing from the sutural angle to the humerus, where it is obsolete ; four dorsal stria, entire ; fifth somewhat abbreviated, being ob- viously shorter than the others ; sutural stria extending to the middle : feet with a large, prominent, slightly emarginate tooth at tip, and three smaller ones. Length more than three-twentieths of an inch. This is so much like the bimacidatus Linn., of Europe, that I have long hesitated to describe it, being inclined to consider it a mere variety of that species. Paykull represents the frontal stria of the himaculatm of the usual form, excepting that it is more obtuse than others, whereas that of our insect is precisely similar to the same part of the sener/alriisis Payk., this character, for which I rely on the accuracy of Paykull, combined with those of the interrupted thoracic striae, and the somewhat abbre- viated fifth dorsal stria, justify the separation of this insect as an independent species. [ 38] [Does not differ from the European species mentioned. — Lec] Family 2. — Frontal stria obsolete or none ; lateral thoracic stria none; elytra with entire strije; anterior tibia entire. 8. H. NIGRELLUS. — StrisB of the elytra equidistant, equal, rectilinear; front convex. If. Jiaviconiis Melsh. Catal. Body oval, black : front convex, more promiaent in the middle, a slight angle over the insertion of the antennae : antennae piceous, [Vol. y. OF PHILADELPHIA. 265 clavum oval, pale fulvous : thorax densely and equally punc- tured : elytra with all the striae rectilinear, entire and equidis- tant, excepting the marginal one, which is very obsolete, hardly perceptible and generally abbreviated : stria on the lateral edge of the superior surface as distinct as the dorsal ones : feet piceous : anterior tibiae ciliated with short spines. Length one-tenth of an inch. Var. a. Body piceous. This species is altogether different from the Jlavicoriu's Hevhst, in which are but three abbreviated striae at the base of the elytra. I therefore adopt a name given by Dr. J. F. Melsheimer. It is certainly very closely allied to the fu/vicornis Fabr., and may possibly prove to be a variety of that insect. [Belongs to Eplrrusi. — Lec] 9. H. CONJUXCTUS. — Fifth dorsal stria abbreviated ; fourth united with the sutural stria at base. Body oval, black : head minutely punctured, slightly concave before, and somewhat angulated over the insertion of the an- tennas : antennae and mandibles piceous, the former with a dull fulvous capitulum : [39] thorax more obviously punctured each side : elytra piceous at the terminal margin ; marginal stria ob- solete, more distinct behind; four dorsal striae entire, and fourth very obtusely incurved at base, so as almost to join the sutural stria ; fifth stria abbreviated, extending a little beyond the mid- dle : anterior tibiae narrower at tip, and very obtusely and slightly crenate on the edge. Length rather less than one-tenth of an inch. A very distinct species, remarkable for the connexion of the fourth and sutural striae. [Belongs to t'arcinops Marseul, which does not apj ear to be sufficiently distinct from Paromalus. — Lec] 10. H. SUBROTUNDUS. — Front concave; elytra with the su- tural stria abbreviated. H. snhrotundus Melsh. Catal. Body rounded, black : front concave, transverse line obsolete : mandibles piceous : thorax more obviously punctured on the sides: elytra each side and at tip rufo-piceous; marginal stria hardly reaching the middle ; five dorsal striae entire ; sutuial 1825.] 266 ACADEMY OP NATURAL SCIENCES stria abbreviated beyond the middle ; terminal submargin trans- versely indented : beneath blackish-piceous : feet rufo-piceous : anterior tibice not wider at tip than in the middle, ciliated with distant spines. Length much less than one-tenth of an inch. Var. a. Fifth dorsal stria abbreviated, (rare.) Var. b. Entirely black. This seems to be closely allied to the troglodytes Payk. of the East Indies; but in that species the form is more oval, and the anterior tibiae are bidentated. It is a common species and varies in size. [40] [Belongs to Phelister Marseul. — Leg.] 11. H. VERNUS. — Front concave; elytra with two abbreviated striae. Body black : head minutely punctured : front concave : an- tennae with the capitulum piceous : mandibles dark piceous : tho- rax with rather large, distant punctures each side ; a much ab- breviated impressed line on the posterior margin : elytra with the marginal striae abbreviated, not extending beyond the middle ; dorsal striae four, entire, well impressed ; fifth and sutural striae abbreviated rather before the middle : feet piceous : anterior tarsi crenate, with three larger, subequal, spinous teeth. Length one-tenth of an inch. [Also a Phelister. — Leg.] Family 3. — Front convex, punctured ; thorax without striae, punctured each side ; elytra striate and punctured. [The species of this division belong to Saprmus. — Leg.] 12. H. FRATERNUS. — A transverse impunctured space on the thorax, and a common one on the elytra ; first dorsal stria reach- ing the tip ; head with impressed lines. Body brassy-black : head somewhat rugous before : antennae with a dull rufous capitulum : thorax densely punctured, except- ing a transverse space behind the middle : elytra densely punc- tured, excepting an oval, common space near the base and the lateral margin ; marginal striae obvious, not reaching the hu- merus; first dorsal slightly undulated near the base, entire, much incurved behind the middle; second, third, fourth, and sutural striae abbreviated at the middle, the two latter connected at base : [Vol. V. OP PHILADELPHIA. 267 beneath black : feet [41] piceous-black : anterior tarsi quadri- dentate, penultimate tooth largest, and two or three smaller ones at base. Length rather more than three-twentieths of an inch. Var. a. Cupreous dull. Length less than three-twentieths of an inch. Inhabits Missouri. Very closely allied to A-striatus Payk. of Europe, but the im- punctured space of the thorax is much smaller, and that of the elytra is shorter, transversely oval. Not uncommon. It occurs numerously on the sea beach under Fuci, and other decaying vegetable and animal substances. I obtained a specimen also in East Florida. 13. H. MANCUS. — Thoracic punctures smaller on the disk ; a common space on the elytra, impunctured ; dorsal strise all ab- breviated ; head without impressed lines. Body black : head punctured, compressed before and destitute of rugae : thorax densely punctured ; punctures smaller on the disk, and particularly behind the middle : elytra densely punc- tured, transverse common space near the base, and humerus im- punctured ; marginal stria entire ; dorsal striae abbreviated rather behind the middle ; fourth and sutural striae connected at base : feet piceous-black : anterior tibiae not dentated, but with remote short thick spines. Length rather less than three-twentieths of an inch. I obtained it in the North-west Territory during Major Long's second expedition. It resembles the [42] preceding, but the abbreviated first dorsal stria, and the anterior tarsi, amply dis- tinguish it. 14. H. PALMATUS. — Thorax, excepting on the posterior mar- gin, impunctured; anterior tibiae profoundly dentated. Body black : head with a transverse line and longitudinal bi- farious one : antennae, small joints rufous : thorax without any ap-- pearance of punctures, except on the narrow basal margin, where they are rather large : elytra punctured on the terminal half, but not exterior to the line of the third stria ; marginal stria abbre- viated ; four dorsal strias abbreviated, the fourth united to the 1825.] 268 ACADEMY OF NATURAL SCIENCES sutural stria at base : feet blackisli-piceous : anterior tibiae with two or three prominent teeth, and four or five smaller ones. Length less than one-fifth of an inch. Family 4. — Body oblong or elongated, flattened ; clypeu'3 con- cave ; thorax marginated, punctured each side ; elytra striated ; antei'ior tarsi denticulated ; posterior pairs with but a single sei'ies of spines. [The two species of this division are of the genus Plafysoma. — Leg.] 15. H. PARALLELUS. — Elytra with entire striae; anterior tarsi quadridentate ; frontal line distinct. Body somewhat elongated, a little depressed, black : head punctured, with a distinct transverse, impressed line, anterior to which the surface is a little concave : antennae pale rufous : man- dibles piceous ; thorax punctured, those of the disk a little smaller : elytra slightly punctured each side and at tip ; all the striae entire : beneath pieeous-black : feet pale piceous : [43] an- terior tarsi four-toothed, two terminal teeth nearly equal. Length from more than one-tenth to less than three-twentieths of an inch. Var. a. Sutural stria obsolete at base. Kather common. I have also found it in East Florida. 16. H. FRONTALIS. — Head a little depressed; nasus very short, transverse line indistinct; elytra with entire striae. Body oblong, somewhat depressed, black : head depressed, the clypeus terminating before in a rather prominent line between the antennas ; transverse line obsolete ; nasus very short, trans- verse, linear, not concave : labrum and mandibles piceous : an- tennae piceous, with a yellow capitulum : thorax subequally punc- tured : elytra slightly punctured on the lateral margin and tip ; striae entire ; fifth obsolete at base, or continued only by punc- tures : anterior tarsi with four small teeth. Length less than one-tenth of an inch. Very similar to the preceding, but much smaller, and distin- guished by the peculiar form of that part of the head to which the labrum is attached ; this part is transverse linear. I ob- tained a specimen on the eastern shore of Virginia. [Vol. V. OF rniLADELPHlA. 2G9 Family 5. — Body flattened, oval ; intermediate and posterior pairs of tibia with but a single series of spines. [44] 17. 11. SORDIDUS.— Thorax impunctured j marginal striae of the elytra none ; inner striae abbreviated. Body polished : head concave in front ; transverse line very obvious : thorax impunctured, marginal line single : elytra desti- tute of a marginal line; first, second, and third striae entire; fourth, fifth, and sutural striae anteriorly abbreviated at the mid- dle, subequal ; the sutural one often rather longest : anterior and intermediate pairs of tibia3 five-toothed, of which the superior tooth is very small, and with the appearance of a still smaller one above : posterior tibias with several spines. Length less than three-twentieths of an inch. This is very similar to Jf. (Je^jre.'isiis of Europe, but there is no appearance of punctures on the thorax. [This is JI. caroUima Payk., and belongs to Platt/sonia. — Lec] 18. H. ^QUALis. — Elytra destitute of obvious striae, minutely punctured. Hisfer sequaJis 3Ielsh. Catal. Body much flattened, black : head slightly convex, very min- utely punctured ; transverse line marginal, much arcuated : an- tennae, capitulum rufous : thorax with very minute lateral punc- tures, lateral line narrow : elytra punctured, punctures small, nu- merous ; a very slight appearance of a marginal stria, and of one or two oblique abbreviated ones at base : anterior tibiae somewhat dilated, teeth four, obsolete ; posterior tibise unarmed. Length three-twentieths of an inch. To the unassisted eye, the elytra appear perfectly smooth, and it is only on a close examination, aided [45] by a particular in- cidence of light, that the strise we have described are at all visi- ble. In some specimens, the anterior tibiae are hardly crenate, in others they appear armed with four very short spine-like teeth. [A species of Paroyiialua. — Lec] Family 6. — Punctured, convex ; sutural striae none. 19. H. PUNCTULATUS. — Dorsal striae four, the inner ones ab- breviated near the tip. Hister punctulatxis Melsh, Catal. 1825.] 270 ACADEMY OP NATURAL SCIENCES Body rounded, subovate, black : head with small numerous punctures : antennae piceous, capitulum pale fulvous : thorax with small numerous punctures, less distinct on the disk : elytra irregularly punctured ; first and second dorsal striae entire, well impressed ; third and fourth stria3 less deeply impressed, extend- ing from the base to near the tip, where they are abbreviated, the latter shorter : feet piceous : tibiae dilated in the middle, Length nearly three-twentieths of an inch. Allied to the punctatus Payk., but sufficiently distinct. Rare. [Belongs to Dendropliilus. — Lec] 20. H. TRANSVERSUS. — Thorax with two grooves and a trans- verse impressed line. Body oblong, brownish-black, with large numerous punctures ; head somewhat concave above the antennae, and before the antennse elongated : thorax with a large deep groove on each side, and a transverse, impressed, very distinct line rather before the middle : elytra with large, dense, longitudinal punctures, [46] giving a somewhat rugose appearance to the surface. Length rather more than one-twentieth of an inch. About equal in size to the csesus Fabr., of Europe, to which it is very closely allied. [Belongs to Plegaderus. — Lec] Family 7. — With elevated lines. 21. H. ALTERNATUS. — Thorax with six elevated lines; lines of the elytra with intervening smaller ones. Ulster sidcatus Melsh. Catal. Body oval-orbicular, convex, brownish-black : thorax with six prominent lines, the two middle approximate on the anterior mar- gin ; the exterior line abbreviated before ; lateral edges promi- nent ; intervening grooves punctured : elytra with about four elevated lines, and a common one ; intervening spaces with smaller elevated lines : anal segment with three elevated lines : beneath with large punctures : feet piceous. Length less than one-tenth of an inch. Certainly not the sidcatus Fabr., to which, however, it is some- what similar as regards the sculpture of the elytra, but in the position and number of the thoracic lines it is somewhat like the striatus Fabr. Rare. It belongs to the genus Onthopldlus of Leach. [47] [Vol. V. OF PHILADELrHIA. 271 HOLOLEPTA. 1. H. ^QUALIS. — Polished; mandibles as long as the head, simple. Body polished, suboval : head with an obtuse spine above each 'antennae : antennae dark ferruginous : mandibles simple, as long- as the head : elytra obliquely truncated at tip, sutural shorter than the external edge ; three much abbreviated striae at base, the inner one indistinct, marginal striae very obvious : anterior tibia three-toothed, the anterior one dilated and emarginate. Length two-fifths of an inch, nearly. Common under bark of decaying trees. I formerly considered it identical with the -i-denfatus Fabr., of South America, but on comparison, I agree with Dejean that it is a new species. 2. H. FOSSULARis. — Anterior angles of the thorax with an excavated spot. Body highly polished, suboval : head with an obtuse spine above each antennse : antennas dark fen-uginous : mandibles sim- ple, rather longer than the head : thorax with a profoundly im- pressed, longitudinally-oval spot on each anterior angle : elytra obliquely truncated at tip, the sutural shorter than the external edge, three much abbreviated striae at base, the inner one obso- lete ; marginal striae very obvious : anterior tibia three-toothed, the anterior tooth dilated and emarginate. Size of the preceding, which it very much resembles, and of which it may possibly prove to be the male. [From Journal of the Academy of Natural Sciences, vol. 5, December, 1825, pp. 160—202.] Descriptions of new species of Coleopterous Insects inhabiting the United States. Read January 18, 1825. DYTISCUS Linn. Latr. 1. D. LIBERUS. — Thorax obscure rufous; elytra brownish, gla- brous, with three obsolete series of punctures. Body impunctured, glabrous, oval : head very obscure rufous ; antennae and palpi pale : thorax obscure rufous, somewhat pice- 1825.] 272 ACADEMY OF NATURAL SCIENCES ous, varied with dusky : scutel piceous : elytra dull testaceous, but having a fuscous appearance in consequence of very numer- ous, minute, blackish, confluent points; a narrow dull testaceous exterior margin, in which the blackish points are less numerous ; three series of distant obsolete punctures : heneath piceous : ven- ter varied with dull testaceous, and with about four spots of the same color on each lateral margin. Length less than one-half an inch. I have never found this insect in Pennsylvania. I purchased several specimens, with a collection of insects, several years ago in New York, of which State it is therefore probably a native. The elytra of the female are not sulcated, but are precisely simi- lar to those of the male. I have recently received specimens from Dr. Harris, of Massa- chusetts, who obtained them in that State. [A species of Hj/datice^s, subsequently described as ; D. thora- cicus Harris, Colymhetes nigricollis Kirby j H. hrunnipcnms Aube.— Lec] [161] CYPHON Fabr. Dej. 1. C. discoid[e]us. — Testaceous; elytra with a common black disk. Inhabits Arkansa. Body oval, pale testaceous, with short yellowish hair : head and thorax impunctured : eyes fuscous : scutel triangular, with a slightly depressed margin : elytra with a large common black disk ; numerous small punctures furnishing hairs : wings black. Length one-fifth of an inch. Taken on the banks of the river Arkansa by Mr. Thomas Nuttall. 2. C. OVALIS. — Blackish, or yellowish-brown, pubescent ; tho- rax narrow, transverse. Body rather short, oval, considerably depressed, blacki.sh or yellowish-brown ; with short, numerous hairs ; antennae and palpi pale yellowish-brown : thorax transverse, narrow, not rounded on the anterior edge ; punctures more distinct each side : elytra with numerous impressed punctures gradually becoming obsolete be- hind : feet pale yellowish-brown. Length one-tenth of an inch. [Vol. V. OP PHILADELPHIA. 273 More rounded and less sericeous than C. griseus Fab., and somewliat larger than C. padi Gyl. LAMPYRIS Linn. Latr. 1. L. RUFICOLLIS. — Blackish- antennae and thorax rufous. Lampyris ruficolUs Melsh. Catal. [162] Head black, polished, with short hairs ; eyes rather small, prominent ; autennte and palpi dull rufous : thorax transversely oblong-quadrate, with short hairs, polished; anterior angles rounded ; anterior margin not extended over the head ; rufous, a little dusky before the middle : elytra blackish, with numerous punctures furnishing short hairs : pectus rufous on the lateral margin : tibia obscure rufous. Length three-twentieths of an inch. The smallest North American species I have seen, and very distinct by its characters from any of them. It does not appear to be endowed with the power of yielding light. [Belongs to Helodes Latr., ( Ci/phon Fabr.,) and subsequently described as //. marg inicoUis (jtuevm, and H. frag His Zeigler ; it varies in having sometimes a black dorsal thoracic spot. — Lec] 2. L. ANGULATA, — Blackish-brown ; thorax yellowish, with a vitta and lateral margin, black ; elytra margined with yellowish. Lampyris marginata Melsh. Catal. Body dilated : head dull rosaceous, with an obscure frontal spot and vertex, blackish; antennre simple, blackish, basal joint pale; palpi blackish : thorax obtusely somewhat angulated before ; a dilated black vitta attenuated before, on each side of which to- wards the base is a large pale rosaceous space, and towards the tip each side a dull yellowish one ; lateral margin blackish ; a longi- tudinal elevated line ; lateral margin a little excurved near the posterior angles ; posterior edge arcuated each side : scutel black : elytra with a broad outer margin and narrow sutural margin and tip, yellowish : abdomen, terminal segments bright yellow. [163] Length two-fifths of an inch. In general form, and color of the thorax, it resembles the corrusca Linn., which, however, is destitute of colored margins to the elytra, and its thorax is rounded before ; it is very differ- 1825.] 18 274 ACADEMY OF NATURAL SCIENCES ent from the marginata LIqd., by its much more dilated form. I have one specimen whicli is three-fifths of an inch in length. [Belongs to Photinus as enlarged by Lacordaire, Gen. Col. 4, 321.— Leg.] 3. L. centrata. — Thorax rosaceous, with a black centre; elytra margined with yellowish. Lampyris limhata, Melsh. Catal. Body oblong : head blackish ; mouth dull rufous ; antennae simple, compressed and with the palpi, black : thorax rounded before, destitute of a carinated line ; a black vitta, each side of which is a large rosaceous spot ; lateral margin not excurved to- wards the posterior angles, yellowish ; anterior margin dull tes- taceous yellow ; posterior edge rectilinear : elytra brownish- black, a narrow exterior, sutural and terminal margin, yellowish : abdomen, terminal segments bright yellow. Length from two-fifths to nine-twentieths of an inch. Var. a. Thoracic vitta abbreviated. Very similar in its markings to the preceding, but is less dila- ted, the thorax is rounded before, with its posterior edge rectili- near, and the lateral margin is not blackish, &c. [Also a Photinus, but previously described as L. pyralis Linn, and L. rosata Germ. — Lec] 5. L. RETICULATA. — Elytra dusky, with longitudinal elevated lines, and transverse ones in the interstitial spaces. Body rather slender : head yellowish ; eyes black : [164] tho- rax wider than long, accurately rounded before : depressed mar- gin wide at the posterior angles ; pale yellowish, blackish on the disk ; lateral and anterior margins a little recurved : elytra fus- cous, with longitudinal elevated lines, and intermediate, trans- Terse, somewhat irregular ones : pectus pale yellow each side : postpectus and feet pale yellow. Length less than one-fifth of an inch. A single specimen was brought from Arkansa by Mr. Thomas Nuttall. It may be readily distinguished from the other species of the United States by its reticulated elytra, and slender form. [Constitutes the genus Phausis Lee; the antennae have 12 joints, the last being very small and subulate, — Lec] [Vol, V. OF PHILADELPHIA. 27S 5. L. sciNCTiLLANS. — Light brown; thorax rosaceous, with a yellowish margin and central black spot ; elytra with a yellow- ish margin. Lampyris pi/rah's, Melsh. Catal. Body oblong : head blackish, more or less tinged with rufous ; mouth paler ; antennas brown : thorax regularly arcuated before and on each side ; bright rosaceous, with a black central spot and impressed line ; anterior and lateral margins pale yellowish ; posterior edge very slightly arcuated, which extends equally from one angle to the other : elytra pale brown, with a narrow exterior, sutural and terminal margin. Length nearly three-tenths of an inch. This is our very abundant " Fire-fly," and is familiar to every inhabitant of this country. It is very like the centrata nob., but is much smaller and of a much paler color. With the late Mr. Melsheimer, I have always hitherto considered this species to be the [165] /?yra?('.« of authors; but on a careful comparison with their descriptions, and particularly that of Olivier and his figure, I have, after much hesitation, concluded that it is dis- tinct from that species. The pyralis is described to be equal in size to the splendidula and noctiluca, but our species is smaller ; my chief reliance, however, is on the figure given by Olivier, which is beyond all doubt that of a widely different species from the present. The female differs from the male in having the elytra imper- fect, being not more than one-third the length of the abdomen ; they are, however, margined like those of the male. [Belongs to Photmus. — Lec] CANTHARIS Fabr. Dej. 1. C. TOMENTOSA. — 'Rufous ; elytra blackish, covered with short hairs ; thorax truncated before. Cantharis tomeHtosa Melsh. Catal. Head prominent, somewhat elongated and attenuated behind the eyes, glabrous, rufous: antennae dusky, pale rufous at base, second and third joints equal : thorax rufous, subglabrous, with very min» ute hairs, polished; lateral margins narrow, more depressed behind; anterior margin truncated ; a longitudinal acute impressed line ; 1825.] 276 ACADEMY OF NATURAL SCIENCES seutel pale rufous : elytra blackish, with dense minute hairs, and close set small punctures : postpectus dark plumbeous, sericeous^ with very short prostrate hairs : feet pale rufous ; tibiae dusky, the anterior pair somewhat arcuated, so as to have the appear- ance of being a little dilated [166] on the inner side towards the tip : abdomen dark plumbeous on the disk, lateral margins and tip pale rufous. Length nine-twentieths of an inch. A species of Podahrus subsequently described as P. rujtohs Mels. — Lec] 2. C ROTUNDICOLLIS. — Pale rufous ; elytra plumbeous, seri- ceous ; thorax rounded before. Head rounded, sericeous on the front, towards the tip a little varied with black ; antennae hardly darker than the head, third joint longer than the second, but not twice as long ; mandibles black at tip and on the inner margin : thorax pale rufous, polish- ed, with short hairs, somewhat inequal ; lateral margins nearly obsolete behind, depressed before ; posterior margin abruptly de- pressed ; anterior margin regularly rounded, lateral angles none : acutel pale rufous : elytra plumbeous and decidedly sericeous, varying with the incidence of the light : beneath pale rufous, sericeous : anterior tibiae simple. Length nearly three-fifths of an inch. The colors of this species, as well as their distribution, are so very similar to those of the preceding, that it might be easily mistaken for the same, but it differs in the anterior rotundity of the thorax and the simplicity of the anterior tibiae. 3. C. LIGATA. — Pale ochreous ; head with two lines and tho- rax with a vitta, black. Body pale ochreous : head with two very obvious black lines, proceeding from the base of the antennae and converging a little to the neck ; antennas black, second joint very small, half the length of the third, [167] which is not more than two-thirds the length of the fourth ; mouth prominent, with a black line each side above ; palpi long, terminal joint but little dilated : thorax quadrate, not transverse; lateral edges rectilinear; angles rounded, po^erior ones more acutely so ; a broad black vitta, which, however, does not affect the anterior and posterior raised [Vol. V. OF PHILADELPHIA. 277 edges : elytra immaculate : wiugs black : tibiae and larsi black, nails simple. Length more than two-fifths of an inch. The form of the palpi prove this species to be closely related to Malthiims. I found the specimen near the cantonment of Major Long's exploring party on the Missouri river. [This is a variety of ChauUoijnathus mnrginatus with immacu- late elytra. — Lec] 4. C. JACTATA. — Pale ochreous; thorax with an impressed line, dull rufous, yellowish each side. Body pale ochreous ; head yellowish before, above the antennae black, polished ; antennae black beneath, and basal joint rufous ; second joint half as long as the third, which is equal to the fourth : thorax transverse, rounded before ; posterior angles acute ; yellowish each side, on the disk rufous with a blackish line, and with an indented line extending from the middle to the posterior raised edge : elytra immaculate : postpectus blackish on each side: tibiae and tarsi black above^ nails with a prominent ^ ~, tooth; venter blackish in the middle, ' ^ ' -^^^J Length more than two-fifths of an inch. ~ 'i^ I found this species when with Major Long's party, near the Rocky Mountains. [Unknown to me. — Leg.] [168] 5. C. PARALLELA. — Black ; thorax yellow, with a black vitta. Head black ; mandibles honey-yellow \ antennae with the first joint yellowish beneath, second joint half the length of the third, which is equal to the fourth : thorax yellow, with a slight tinge of rufous, with a black equal vitta, which occupies not more than one-fourth or one-fifth of the surface; anterior portion rather narrower than the posterior margin ; angles rounded : elytra black : beneath black : pectus yellow : nails armed with a tooth. Length more than one-fourth of an inch. This species was labelled in my cabinet with the name of lineola, but that name is pre-occupied. The black line of the thorax is well defined, and its sides are parallel. Occurs in June. [This is C. lineola Fabr. — Lec] 1825.] 278 ACADEMY OP NATURAL SCIENCES 6. C. LATicoRNis. — Black J thorax with the lateral margin yellow ; antennse serrate. Eody black ; head somewhat yellowish before ; antennae a little dilated and serrate on the inner side ; second joint very small, less than one-third the length of the third joint, which is equal to the fourth : thorax a little narrower before, lateral nar- row margins honey-yellow ; middle of the lateral edge contracted ; posterior angles subacute : pectus yellowish : nails simple, pos- terior pair with a slight tooth. Length nearly three-tenths of an inch. [Belongs to Polemius Lee, Proc. Acad. Nat. Sc. Phila. 5, 339; Telephorus duhius Mels. is synonymous. — Lec] 6. C. SCITULA. — Dusky; thorax, margin of the elytra and feet yellow. Head black, anterior half yellowish ; antennae with [169] the two basal joints beneath yellowish, second joint rather large, two- thirds the length of the third joint, which is equal to the fourth : thorax yellow, immaculate; anterior angles obtusely rounded^ posterior angles acutely rounded ; elytra dusky, with a pale yel- lowish margin, the sutural margin very broad, near the scute* occupying nearly half the width of the elytrum : beneath pale yellowish ; postpectus and venter varied with dusky : nails armed with a tooth. Length more than one-fifth of an inch. [Subsequently described by me, Agassiz, Lake Sup., 230, as Telephorus nigriceps. — Lec] 8. C. ? BIDENTATA. — Thorax bidentate, yellow; antennae ser- rate. Body black : antennae dilated, joints short, serrate ; second joint very small, not dilated, half as long as the third, which is equal to the fourth : thorax yellow ; near the posterior angle on each side are two prominent, approximate, parallel teeth. Length more than three-twentieths of an inch. [Belongs to Silis. — Lec] [Vol. V. OP PHILADELPHIA. 279 MALACHIUS Fabr. 1. M. FLAVILABRIS. — Puiplish-black ; head at tip yellow. Body black, witb a slight tinge of purplish, particularly on the elytra : head polished deep black between and above the eyes, anterior to which it is bright yellow ; antennse beneath one half the length yellow : anterior pairs of feet yellow, coxae and thighs with a dilated black line ; posterior feet dusky. Length to the tip of the elytra more than one-tenth of an inch. [Belongs to Anthocomus ; subsequently described as M. coeru- leus Randall.— Lec] [ 170 ] 2. M. PusiLLUS. — Purplish-black J feet, excepting the poste- rior tibiae, yellow. Head polished, black ; antennae at base yellow; mandibles yel- low, piceous at tip : anterior pairs of feet, excepting the patella, yellow; posterior pair yellow, tibias and line on the thighs, black. Length more than one-twentieth of an inch. I received the two insects above described from Dr. J. F. Melsheimer, under the names I have given to them. [Belongs to Ehxus. — Lec] 3. M. sciNCETUS. — Pale yellowish ; thoracic disk black. Head yellow, black at base : thorax deep black on the disk, each side and basal edge yellow : scutel black ; elytra pale yel- lowish, suture excepting towards the tip blackish : pectus yellow, witt a blackish spot each side ; postpectus yellow ; lateral and posterior margins black : abdomen black, incisures and lateral edge yellow. Length one-tenth of an inch. A common species, remarkable for its pale color. [A species of Anthocomus. — Lec] 4. M. APICALIS. — Black; thorax sanguineous; feet and tip of the elytra whitish. Head black, polished ; antennae yellowish : thorax sanguineous, dusky on the anterior margin : elytra black, polished ; a large, rounded, whitish, somewhat hyaline spot occupying the tip : feet and posterior part of the venter pale yellow or whitish. 1825.] 280 ACADEMY OF NATURAL SCIENCES ' Length less than one-tenth of an inch. 1 obtained this species when with Major Long's party in Missouri. [Belongs to Uhaeus. — Lec] [171] 5. M. TERMTNALis. — Blackish ; terminal margin of the elytra pale testaceous. Body black, polished, somewhat hairy; antennae at base, clypeus on its anterior margin and labrum dull rufous : elytra with the apical margin only pale testaceous : anterior thighs be- neath, piceous : abdomen with the segments margined with pale testaceous. Length less than one-tenth of an inch : of a more robust form than the preceding insect. [An Anthocomus. — Lec] XYLETINUS Latr. X. sericeus. — Brown ; thorax indented each side behind ; elytra striate. Anobium sericeum Melsh. Catal. Body cylindrical, with minute prostrate hairs : head granu- lated ; antennae rufous ; mouth with golden yellow hair : thorax granulated ; an obvious longitudinal impressed line, terminating behind in a short carina, which separates two impressed trans- verse spaces ; lateral edge prominent : elytra with regular im- pressed sti'ias, in which are equal, large, impressed punctures. Length one-fifth of an inch. If the short Fabrician description of serricornis be accurate; there can be no doubt that the present specimen is distinct. [Belongs to Trypopitys Redt. — Lec] ANOBIUM Fabr. 1. A. GIBBOSUM. — Thorax much elevated, acute in the middle. [172] Anobium gibbosum Melsh. Catal. Body very hairy, brown ; hairs more or less ferruginous : an- tennae nearly naked, reddish-brown : thorax much elevated in the middle, the tip of the prominent part bifid : elytra with irregular striae of punctures ; a few more prominent tufts of hairs; humerus prominent : postpectus dusky. [Vol. V. OF PHILADELPHIA. 281 Length more than one-fourth of an inch. The hairy surface, and prominence of the thorax render this a striking species. It is not common. 2. A. BISTRIATUM. — Black ; feet dull rufous ; antennae pale yellowish. Thorax a little compressed before, with a slight oblique groove each side, proceeding backward and becoming confluent on the posterior submargin ; lateral margin impressed, edge rather prominent ; anterior edge slightly reflected : elytra with obsolete series of impressed punctures ; on the lateral margin are two deeply impressed striae. Length more than one-twentieth of an inch. A small but very distinct species. 3. A. NOTATUM. — Above blackish, varied with cinereous ; thorax with the posterior angles subacute. Head with cinereous hair on the front ; antennae glabrous, rufous, as long as the thorax : thorax blackish-brown, a longitu- dinal impressed line, in which is very short cinereous hair, on each side of which is a small obsolete cinereous spot ; base with a large cinereous patch ; posterior angles rather prominent, sub- acute : scutel cinereous : elytra striate, punctured, [173] with short cinereous lines in the interstitial spaces, forming a band beyond the middle, and at base generally enclosing a black spot : beneath cinereous ; feet blackish-rufous. Length more than three-twentieths of an inch. This pretty species is not at all common. 4. A. TENUESTRiATUM. — Reddish-brown ; sericeous ; elytra with filiform striae. Anohium villosum Melsh. Catal. Antennae moderate, the terminal joints not unusually elongated, the length of each not being equal to three times its breadth : thorax not remarkably convex, a little indented transversely each side* on the posterior margin, but not carinated on the posterior middle ; before the middle on each side, in a particular light, is a rounded spot of the general yellowish sericeous hair : elytra with very slender, not deeply impressed, punctured striae. Lensrth less than three-twentieths of an inch. A very common species; it frequently occurs in our museums. 1825.] 282 ACADEMY OF NATURAL SCIENCES It is also very destructive to Iris root of the shops, and to various other farinaceous substances. It has some resemblance to the A. striatum Fabr., of Europe, but the terminal joints of the antennae are less elongated, the thorax is less contracted before, and the striae of the elytra are much narrower. The name given by Mr. Melsheimer is pre-occupied. [174] TILLUS Fabr. Latr. 1. T. BICOLOR. — Black ; thorax rufous, anterior and posterior margins black. Body hairy : head black : antennae dusky, pale rufous at base : mouth pale rufous : thorax contracted behind the middle, and a little dilated at the middle : rufous, anterior and posterior mar- gins black : elytra black, with regular striae of punctures : pectus rufous, anterior and posterior margins black : postpectus piceous : feet yellowish, knees and tarsi dusky. Length more than three-tenths of an inch. Resembles T. elongatus Linn., of Europe, but the middle of the pectus is not black, and the anterior and posterior margins of the thorax are black. Mr. Nuttall brought me a specimen of this insect from Arkansa, and Dr. J. F. Melsheimer sent me one under the name which I have adopted. [This is a Cymatodera. — Leg. J 2. T. UNDULATUS. — Elytra pale testaceous, two undulated bands and tip black. Notoxus undtdatus Melsh. Catal. Body long, slender : head black : eyes nearly entire : antennae pale rufous, nearly filiform, slightly larger towards the tip, and hardly serrated : palpi pale rufous : thorax blackish, cylindrical, transversely indented on the anterior submargin, a little dilated On the middle of the lateral margin, and narrower behind : elytra with regular striae of punctures, pale testaceous ; basal margin blackish ; an undulated band before the middle, another behind, the middle and tip black: [175] beneath rufous, stethidium sometimes varied with blackish : feet pale testaceous ; nails pec- tinated. Length nearly two-fifths of an inch. This insect has the habit of a Notoxus, but it cannot be con- [Vol. V. OF Philadelphia. 283 generic with the mollis, owing to the conformation of the first joint of the tarsi, which agrees with that of the present genus. The antennas are much less serrated than those of elongatus Fabr., and are proportionally longer, the nails also are pectinated. [Also a Cymatodcra afterwards described as C longicollU Spin. — Leg.] CLERUS Fabr. Dej. 1. C. TRIFASCIATUS. — Rufous; elytra with a broadband on the middle, and tip black, an intermediate cinereous band. Body hairy, bright rufous : head at tip dusky : antennae black, terminal joint rufous at tip: thorax short, the transverse inden- tation rather deep : elytra rufous and granulated at base ; on the middle a much dilated deep black band, undulated on its anterior and posterior edges, and with a narrow cinereous line at its ante- rior edge ; behind this black band is a pale rufous band so covered by cinereous hair as to appear entirely cinereous ; tip deep black : beneath rufous: feet hairy, black. Length more than nine-twentieths of an inch. This insect has considerable resemblance to the icJmeumoneus Fabr., and ru/us Oliv., but the black band occupies the situation of the rufous band of those insects, behind this band these two species have [176] a black band, but in our insect this is rufo- cinereous ; the tip also is deep black, whereas in the above men- tioned species, it is either spotted or margined with cinereous. [Belongs to TJianasimus, as now separated from Clerus. — Lec] 2. C. PALLiPENNis. — Blackish; elytra pale testaceous, bifasci- ate with black. Body greenish-black : antennae and palpi pale rufous, terminal joint of the former a little dusky : thorax widest before the mid- dle, contracted behind ; an indented transverse line on the ante- rior submargin, and a less conspicuous one on the posterior margin : elytra very pale testaceous, with a black band on the middle, and another at tip : feet pale testaceous, posterior pair rather long. Length less than one-fifth of an inch. Similar in form to the humeralis nobis. [Belongs to Hydnocera, afterwards described as H. serrata Newman. — Lec] 1825.] 284 ACADEMY OF NATURAL SCIENCES 3. C. UNiFASCiATUS. — Blackish ; elytra witli a white band on the middle. Body black, tinged with greenish : antennae and palpi pale rufous : thorax widest before the middle, so as to resemble a tubercle on each side : elytra with a very narrow, pure white band on the middle : feet blackish ; tarsi pale. Length rather more than one-tenth of an inch. Of a form similar to the preceding. [Also a Hydnocera ; described by Spinola as H. punctata. — Leg.] ENOPLTUM Latr. E. DISLOCATUM. — Black ; elytra with a whitish band and spots. Body punctured, black, hairy: head on the anterior [177] part reddish-yellow ; antennae brownish, yellowish at base, ter- minal joints not deeply serrated, somewhat rounded : thorax sub- cylindric : elytra with an oblique line from the humerus, having a spot at its inner tip, an angulated band beyond the middle, and a spot near the tip, whitish-yellow : feet pale. Length from three-twentieths to nearly one-fifth of an inch. Var. a. Spot at tip of the elytra obsolete or wanting. Although the antennaB differ considerably from the character- istic form of this genus, yet as they have three large and sepa- rated joints at tip, and the palpi are all filiform, with five distinct joints to the tarsi, I have thought best to place the present in- sect in the genus Enoplmm. [This is E. distrophum Klug. ; Phyllobaenus transversalis Spi- nola.— Lec] NECROPHORUS Fabr. N. ORBICOLLIS. — Thorax orbicular : elytra with rufous band before the middle and spot at tip. Body deep black, above polished : clypeus before with a large, square, rufous spot : antennas black ; clavum, excepting its first joint, light ferruginous : thorax orbicular, margined all round, ex- cepting on the anterior portion, which is truncated ; the impressed lines are well defined, arid the longitudinal one extends to the base undiminished : elytra minutely punctured, and with two [Vol. V. OP PHILADELPHIA. 285 obsolete nervurea ; the anterior band is rather before the middle, but does not extend to the scutcl; it is undulated, and does not reach the suture; the spot at tip is somewhat [178] reniform or trilobate, and does not reach the edge or suture : beneath pi- ceous : feet above black : postpectus yellow sericeous. Length more than nine-tenths of an inch. It differs from marginahis Fabr., particularly in the rounded form of the thorax, which in that species is much narrowed be- hind : the elytra of marginatus have a rufous exterior margin, the basal band is not interrupted by the suture, and embraces the tip of the scutel ; there is also a band at tip. The colors of the antennsB are arranged exactly as in vespillo Fabr., but the thorax is much more accurately rounded, and the elytral mark- ings are different. The rotundity of the thorax is more com- plete than even that of mortuorum Fabr. The species occurs in the N. W. Territory : it is very rare in the Middle States. I have received a specimen from Dr. T. W. Harris of Milton, Massachusetts. NITIDULA Fabr. Dej. 1. X. 6-MACULATA. — Blackish, with a broad pale rufous mar- gin and elytral spots. N^itidida Q-macidata Melsh. Catal. Body blackish-brown or deep piceous : antennse pale rufous : thorax with a dilated pale rufous margin : elytra with a dilated pale rufous margin ; an angulated line in the form of a IT at base, a small spot on the submargin, sometimes connected with a line which runs towards the tip, and becomes confluent with the lateral margin ; an angulated or rounded spot [179] behind the middle, rufous : beneath piceous : feet paler. Length more than a quarter of an inch. The rufous angular line at the base of each elytron, in the form of the letter U, is a striking character. [Belongs to Lohiopa Er. — 'Lec] 2. N. ziczAC. — Black-brown ; elytra with an angulated band. Body dark-brown or blackish, with numerous prostrate hairs : antennae piceous, two basal joints rufous : thorax with a rufo- cinereous lateral margin : elytra without striae, an obsoletely rufo- cinereous margin j on each is one or two obsolete rufous spots at 1825.] 286 ACADEMY OP NATURAL SCIENCES base, and a very obvious ocbreous spot on the middle, in the form of a V, the angle pointing towards the base : beneath black- ish-piceous : feet and lateral margin of the pectus, rufous. Length more than three-twentieths of an inch. This species was sent me by Dr. J. F. Melsheimer, who re- marked, that " it resembles the European Nitidula undulata very much, but differs in having the undula or lunule nearer to the apex of the elytra." With that species I am entirely unac- quainted. 3. N. UNDULATA. — Yellowish-fulvous, varied with fuscous ', an undulated, common immaculate space behind the middle of the elytra. > Nitidula undulata Melsh. Catal. Body above fulvous, more or less tinged with yellowish : head varied with fuscous, sometimes nearly all fuscous, with the ex- ception of the anterior portion, [180] and the antennae : thorax literate with fuscous, the broad lateral margins immaculate with the exception of a single spot on the middle : elytra irregularly marked with small fuscous spots ; a large, common, transverse, undulated, immaculate space behind the middle : slightly striated ; striae not obviously punctured, but furnished with very short, recurved hairs ; exterior margin immaculate : beneath rufous : feet and tail paler. Length about one-fifth of an inch. The European analogue of this insect is certainly the N. varia Fabr., but the spots of the elytra of that insect seem to be more distinctly arranged in abbreviated longitudinal lines, and the common immaculate space of the elytra appears to be less ob- vious, and less acutely undulated. I know of no species in thip country, for which it can be readily mistaken. It may possi- bly prove to be a variety of varia. [Belongs to Prometopia Er. — Lec] 4. N. RUFA. — Dull rufous, immaculate ; elytra somewhat trun- cated at tip. Nitidida rufa Melsh. Catal. Body obscure rufous, with the margin a little paler : thorax with the lateral edge a little curved inwards, so that the greatest breadth is anterior to the posterior angles : elytra destitute of [Vol. V. OP PHILADELPHIA. 287 any appearance of spots, lines, or striae, but on the sutural sub- margin is a longitudinal hardly elevated undulation ; tip not reaching the tip of the tergum, truncated, or very obtusely rounded : feet and terminal segment of the venter, paler. [ 181 ] Length less than three-twentieths of an inch. [A species of Epursea Er. — Leg.] 5. N. GEMINATA. — Reddish-brown : elytra, each v^ith four ochreous spots, placed 2, 2. Body obscure reddish-brown, a little hairy : thorax widest at the basal angles ; lateral margin rufous : elytra striate with ele- vated, acute lines, and with intervening regularly concave grooves ; tip rounded, concealing the extremity of the abdomen ; on each elytrum are four ochreous spots, of which one is on the humerus: another near the scutel, elongated, approaching the suture, near the tip, and sometimes common ; and two other rounded ones beyond the middle, placed transversely, equal ; ex- terior margin obscure ochreous. Length more than one-tenth of an inch. The general color of the elytra is sometimes so similar to that of the spots, that the latter are hardly observable. [Belongs to Stelidota Er. — Lec] 6. N. 8-MACULATA. — Dark reddish-brown : elytra with four rufous spots placed 1, 2, 1. Body very obscure reddish-brown : front with two indentations : thorax rather large ; lateral margin paler ; elytra striate with slightly elevated lines ; a rufous oblong spot at the middle of the base, a rounded one behind the humerus, another on the sutural margin near the middle, and a fourth a little behind the mid- dle, oval, oblique ; tip rounded, concealing the tip of the abdo- men, and rufous. Length more than one-tenth of an inch. The lines of the elytra are more obtuse than those [ 182 ] of the preceding species, the interstitial spaces are not so regularly grooved, and the spots are located differently. I found it in plenty, when on the Arkansa river with Major Long's party. [Also a Stelidota. — Lec] 7. N. UNiLiNEATA. — Reddish-brown ; thorax with a line and elytra, each with about five spots, rufous. 1825.] 288 ACADEMY OP NATURAL SCIENCES Body obscure reddish-brown : thorax with the lateral margins and longitudinal dorsal line rufous : elytra destitute of striae ; a large oblong spot at base, near the scutel, a rounded one on the humerus, another near the middle of the exterior submargin, a rounded spot on the subsutural margin, rather behind the mid- dle, another near the tip, and exterior and terminal margin, ru- fous ; tip very obtusely rounded, almost truncate, not covering the termination of the abdomen. Length more than one-tenth of an inch. For this species I am indebted to Dr. J. F. Melsheimer. [This is probably a variety of Amjiliicrossus ciliatus. — Leg.] 8. N. SEMiTECTA. — Picoous ; elytra abbreviated, rufous, pi- ceous at tip. Nitidula hemiptera Melsh. Catal. Body dark rufo-piceous, punctured : head with an indentation each side above the antennse ; antennae rufous : clava oval, dusky : elytra about half the length of the abdomen, truncated, yellow- ish-rufous, or testaceous ; exterior margin and tip rufo-piceous. Length nearly three-twentieths of an inch. The name given by Mr. Melsheimer is pre-oceupied. [ 183] [Belongs to Colastus Er. — Leg.] 9. N. UNicoLOR. — Piceous, immaculate ; elytra abbreviated, slightly sericeous. Body rufo-piceous : head with dense, confluent, small punc- tures : thorax with small confluent punctures : elytra darker, about half the length of the abdomen, a little sericeous in a par- ticular light : beneath somewhat paler. Length less than one-fifth of an inch. I have found this species under loose bark of the yellow pine, in October. [A species of Carpophilm. — Leg.] 10. N. BBACHYPTERA. — Piccous, immaculate ; elytra two-thirds the length of the abdomen. Nitidula hrachyptera Melsh. Catal. Body entirely piceous : head with an impressed, transverse line between the antennae ; antennae rufous : thorax, posterior [Vol. IV. OF PHILADELPHIA. 289 angles rounded : elytra abruptly truncate at tip, rather more than two-thirds the length of the abdomen : feet rufous. Length less than one-tenth of an inch. The smallest species I have seen. [I have not identified the species : it is probably a Cari)Oj^hi- lus. — Leg.] SCAPHISOMA Leach. S. CONVEXA. — Highly polished, black ; antennae, mouth, feet, and tail piceous. Scaphidium convcxum Melsh. Catal. Body black, very highly polished ; head piceous, paler before, with a deeply impressed, transverse arcuated line between the eyes : thorax with minute, rather distant puncture : elytra, punc- tures, excepting towards the base, more obvious than those of the [184] thorax; terminal and posterior lateral margin ob- scurely piceous : feet, abdominal incisures and tail piceous. Length one-tenth of an inch. I received this species from Dr. J. F. Melsheimer, under the denomination I have adopted. From all I can learn, it seems to be very closely allied to the >S'. agarica of authors, of which, in fact, it may possibly prove to be a variety. CATOPS Fabr. 1. C. OPACUS. — Brownish-black, opaque; terminal and two basal joints of the antennae rufous. Ptomophagus opacus Melsh. Catal, Body sericeous, with minute hairs, which, in a particular light are pale ferruginous : antennae with the seventh joint largest, the eighth smallest : elytra not striated, but with a subsutural im- pressed line, and very numerous minute punctures, furnishing minute hairs : feet blackish piceous. Length less than one-fifth of an inch. Occui's frequently in a species of Hydnum. 2. C. SIMPLEX. — Pale brownish, sericeous; terminal and five basal joints of the antennae rufous. Inhabits Arkansa. Head dark ferruginous; antennae dark ferruginous, the five basal joints and terminal joint rufous ; palpi and mandibles ferru- 1825.] 19 290 ACADEMY OF NATURAL SCIENCES oinous : thorax rather paler than the head, quadrate, a little transverse ; sides regularly arcuated ; posterior margin not wider than the anterior; [185] posterior edge rectilinear; angles rounded : elytra paler than the thorax, light brownish, with ob- solete striae, more obvious towards the tip ; very numerous minute punctures, furnishing minute hairs : beneath piceous : feet ru- fous; thighs yellowish beneath. Length nearly three-twentieths of an inch. This species occurs on dung, ATTAGENUS Latr. A. CYLINDRICORNIS. — Reddish-brown ; antennae and feet pale rufous. Dermestes cylindricornis Melsh. Catal. Body reddish-brown, with very numerous, short, ferruginous, somewhat rigid, sericeous hairs : head blackish, with an obscure rufous frontal spot; antennae pale rufous, tei-minal joint dark brown; mouth rufous : thorax nearly as dark as the head : elytra paler than the thorax : beneath piceous-black ; feet pale rufous. Length % three-twentieths, ? less than one-fifth of an inch. Var. a. Smaller. Dermestes fioricola Melsh. Catal. Var. b. Elytra almost rufous. Dermestes ohscurus Melsh. Catal. This species is common. [The specimens in Dr. Melsheimer's collection belong to A. mcgatoma, which has been imported from Europe: the descrip- tion seems rather to refer to A. spurcus Lee, Proc. Acad. Nat. 8c. Phil. 7, 109, btit is too indefinite for accurate determina- tion.— Lec] MEGATOMA Herbst, Latr. M. ORNATA. — Blackish; elytra undulated with rufous. [186] Dermestes undulatns Melsh. Catal. Body with short, numerous hairs ; antennae pale rufous, termi- nal joint dusky : thorax somewhat variegated with irregular lines of rufo-cinereous hairs : elytra with one-half its surface occupied with rufous spots 6r irregular lines : beneath blackish-brown. Length three-twentieths of an inch. [Vol. V. OF PHILADELPHIA. 291 The name iindulatus is pre-occupied by a species described by Herbst. The short hair with which the body is furnished, is deciduous, particularly that of the thorax. [Belongs to Trogodcrma. — Leg.] BYRRHUS Latr. B. ALTERNATUS. — Blackish-brassy ; elytra with alternate darker lines. Head and thorax minutely punctured, black-brassy; with short, prostrate hair ; antennae black ; the thorax with a slender, impunctured, dorsal line : elytra black, very slightly tinged with brassy ; striae very narrow, well impressed, and with very small punctures; interstitial lines flat, alternately more obviously polished ; very minute hairs : beneath blackish, with small very regular punctures : feet blackish-piceous. Length less than one-fifth of an inch. I am indebted to Mr, Charles Pickering, of Salem, Massachu- setts, for this species. I have never before met with it. [Identical with C^filiis varius of Europe. — Leg.] ELMIS Latr. 1. E. CINCTUS. — Blackish ; elytra with a large rufous arcuated line and spot at tip. [187] Parnus cinctus Melsh. Catal. Head black ; antennse and palpi yellowish, dusky on the ter- minal joint; thorax black, anterior and posterior margins pale rufous : a transverse slight elevation each side of the middle with a corresponding indentation before : elytra convex, black, with a large arcuated pale rufous line, extending nearly straight from the humerus obliquely to near the sutural middle ; thence it curves outwards and backwards towards the margin ; towards the tip, a dilated longitudinal pale rufous line : feet elongated tibiae and base of the thigh, pale rufous. Length rather more than one-tenth of an inch. The antennae are very obviously eleven-jointed, and the termi- nal joints are slightly enlarged. [Belongs to Ancyronyx Er. ; previously described as Macrony. chus variegatus Grerm. — Leg.] 1825.] 292 ACADEMY OF NATURAL SCIENCES 2. E. 4-NOTATUS. — Black ; autennae, two spots on each ely- tnim, and tarsi rufous. Body black : anteunac entirely rufous ; thorax simple : elytra with strise of punctures ; a large rounded rufous spot at the base ©f each; chiefly on the humerus, and a rufous elongated, obsolete one on the posterior declivity : tarsi rufous. Leng-th less than one-tenth of an inch. MACRONYCHUS Mull. M. QLABRATUS. — Blackish ; feet slender ; antennas pale ru- fous. Mticrov2/chus glabratus Knoch, J. F. Melsheimer. Body entirely blackish; slightly hairy : thorax [188] with a jilightly elevated line each side at base, hardly extending to the middle : elytra with series of large punctures not very deeply impressed ; a more distinct series of hairs near the suture ; an elevated, crenate, submarginal line extends from the humerus, but is abbreviated before the tip : feet elongated. Length rather more than one-tenth of an inch. HYDROPHILUS Linn. Fabr. 1. H. ROTUNDUS. — Very convex, oval; elytra destitute of striae, excepting the sutural one. Body black, polished, with very numerous, minute, regular punctures : palpi piceous : thorax with the lateral margin pice- ous; this color extends a short distance on the basal margin: elyti'a very obscurely piceous on the lateral mai'gin, without any appearance of strise or large impressed punctures; the sutural strias very obvious, not reaching the base, generally hardly sur- passing the middle. Length three-tenths of an inch. For this species I am indebted to Dr. J. F. Melsheimer, who informed me that it inhabits " marshy places in forests near the first ridge of the South Mountains, in Adams County, Pennsyl- vania.-' I also found it in Georgia. It resembles gJohosus nob., but is less convex, and is destitute of striae of the elytra. [Belongs to Philhydrus. — Lee] 2. H. STRIATUS. — Dull testaceous; head dark greenish; ely- tra striate, and with small remote black spots, [Vol. V- OP PHILADELPHIA. 293 Hi/drophilus striatus Melsli. Catal. [189] Head dark greenish, with a cupreous gloss : thorax tinged with rufous, with a double, longitudinal, abbreviated line : scutel black : elytra with acute, closely punctured striae ; a small spot on the humerus, and two others arranged in a very oblique series, with respect to the first; then a transverse, much undulated series of five or six small spots ; then two small spots near the sutural tip, black : beneath blackish : feet pale rufous. Length more than one-fifth of an inch. About equal in size, and closely allied to the peregrmus of Herbst, but that species is represented to be altogether destitute of the black spots on the elytra, and of the double thoracic line. [Belongs to Berosus. — Leg.] 3. H. EXIGUUS. — Pale testaceous; elytra with punctured strisB. Body with numerous small punctures : head with the trans- verse line very distinct : elytra rather paler than the thorax, with the striae rather obtuse, punctured : beneath slightly tinged with rufous. Length one-tenth of an inch. This small species I obtained on the sea shore of Chincoteague Island. [I have not identified this species. — Leg.] 4. H. SUBGUPREUS. — Black, obsoletely tinged with cupreous ; elytra destitute of striae, excepting the sutural one. Hi/drophilus minutus Melsh. Catal. Body oval, punctured, black, with a slight cupreous reflection : thorax obsoletely piceous on the lateral margin : elytra with rather larger punctures than [190] those of the head and tho- rax ; striae none, excej^ting the sutural one, which is obsolete in the middle, and does not approach the base ; exterior margin and tip obsoletely piceous : beneath blackish-piceous : feet piceous. Length much less than one-tenth of an inch. Closely allied to the genus Sj)hse)-idhim. It is much smaller than the minuttis of Herbst. [A species of Hi/drohim, having 8-jointed antennce. — Leg.] 1825.] 294 ACADEMY OF NATURAL SCIENCES SPH.ERIDIUM Fabr. 1. S. PR^TEXTATUM. — Black; elytra with a yellowisli lateral and terminal margin. Spli3e,ridlum preetextatum Melsh. Catal. Body oval, black, polished, punctured : palpi whitish : antennse piceous : elytra striate; striae very distinct, impressed, punctured; interstitial spaces punctured : a broad pale yellowish outer mar- gin, commencing at the anterior angle, and gradually dilating to the tip: feet piceous. Length three-twentieths of an inch. [These three species belong to Cercyon. — Leg.] 2. S. NIGRICOLLE. — Black ; elytra and feet pale testaceous. Spliseridium glahratum Melsh. Catal. Body oval, polished, punctured : head black : antennae piceous; capitulum dull rufous : palpi piceous : thorax black : elytra testa- ceous : stride slender, not deeply impressed, punctured ; terminal margin obsoletely paler, interstitial lines punctured : feet pale testaceous. Length more than one-tenth of an inch. [191 ] Var. a. Elytra and feet dark reddish-brown, the former with a very obvious pale spot at tip, somewhat similar to the unistriatum of Beauvois, but much smaller than he represents that insect to be. 8. S. OCCALLATUM [ocELLATUM.] — Black ; elytra with a pale tip ; feet piceous. Body oval, black, polished, punctured : palpi piceous : antennge blackish-piceous : elytra with very distinctly punctured, impressed striae ; a large dull yellowish spot at tip, rounded on its anterior termination, and extending further on the lateral margin than on the suture : beneath blackish : feet piceous. Length much less than one-tenth of an inch. Found in putrescent animal substances at Senipuxten. It is about the size of apiciali's nobis, which it much resembles, but it is distinguishable by its black color, and firmer consistence. [Vol V. OF PHILADELPHIA. 295 APHODIUS Illig. Fabr. A. VITTATUS. — Black ; clypeus trituberculate ; elytra witli a dull rufous vitta. Scatribseus inttatus Melsli. Catal. Head minutely punctured ; three tubercles placed in a trans- verse line, the intermediate one largest, and the lateral ones elon- gated in a line to the eye : tip of the clypeus slightly and very obtusely emarginated : thorax with numerous small punctures : elytra with narrow punctured striae ; the interstitial spaces flat ; a dull rufous vitta including the humerus at base, [ 192 ] extend- ing somewhat obliquely towards the apex of the elytron, and con- tracted in the middle : feet obscure rufous. Length more than three-twentieths of an inch. This insect is very like the tcnninalis nobis, but it may be dis- tinguished by the vitta of the elytra, and the much less pro- foundly emarginated clypeus. TROX Fabr. 1. T. STRIATULUS. — Elytra with elevated acute lines, and in- termediate regular grooves. Trox stviatulus Melsh. Catal. Head blackish-brown, with confluent punctures ; tip widely emai'ginate : thorax blackish-brown, with dilated confluent punc- tures ; a slightly impressed longitudinal groove ; sides very much decurved : elytra light brown, with numerous profound grooves, which are separated by elevated acute lines. Length three-twentieths of an inch. The smallest species known to inhabit the United States, and so perfectly distinct in the striking character of its grooved ely- tra, as not to require any comparative observations. 2. T. TERRESTRIS. — Elytra with raised obtuse lines, on which are round fascicles of short hairs. Trox terrestris Melsh. Catal. Body blackish-brown : head with two small tubercles on the front : thorax with the dorsal groove very distinct, contracted and almost obliterated in its middle, so as to be nearly inter- rupted into twO; on each [193] side of the posterior portion of 1825.] 296 ACADEMY OP NATURAL SCIENCES it is another groove equally profound ; posterior angles obliquely truncated : elytra with the fascicles of yellow hair, on the ele- A^ated lines, rounded and not oblong, equal ; interstitial spaces with small tubercles. Length nearly one-fourth of an inch. This insect is about equal in size to the arenarms Fabr., from which it differs in having no capillary lines in the interstitial spaces of the elytra. The variolatus of Melsh. Catal. if not alto- gether the same as the arenarius of Europe, is certainly most closely allied to it. 3. T. PORCATUS. — Elytra with elevated interrupted lines and numerous transverse punctures on the interstitial spaces. Trox porcatus Melsh. Catal. Body brownish-black : head somewhat inequal, with a more distinct frontal groove : thorax with short brownish hair ; a deep and well defined longitudinal groove, sides inequal ; lateral edge entire ; posterior angles projecting : elytra with regular series of interrupted hairy lines, the series alternately smaller; interstitial spaces with dilated transverse impressed distinct punctures. Length nearly nine-twentieths of an inch. A little larger than canalicxdatus nobis, which it resembles, but it differs in having the transverse punctures of the elytra ; capilfaris nobis is smaller than the above-mentioned species, and may be distinguished from the present by the capillary lines of its elytra. [194] SCARABaEUS Latr. S. RELICTUS. — Head with an elevated transverse line, inter- rupted in the middle ; clypeus at tip elevated and bidentate. Body brownish-black : head with a transverse elevated line between the origin of the antennae, interrupted in the middle, and most prominent near the interrupted part; tip of the clypeus with two reflected, acute denticulations : thorax with rather sparse punctures : elytra punctured, and with three double series of punctures, converging towards the apical angle ; the second and third double series do not reach the angle, a fourth doixble series is on the exterior submargin, but is not so distinct as the others: beneath piceous : pectus and postpectus hairy: feet above blackish : venter blackish. [Vol. V. OF PHILADELPHIA. 297 Length more than four-fifths of an inch. It may be compared with the S. pnnctatus Fabr. of Southern Europe, but is of a more slender form, and is otherwise dis- tinguished by the armature of the anterior termination of the head. I have found specimens in Pennsylvania. It varies in having the reflected tip of the head emarginate, and not deeply divided into two teeth. I have received a specimen from Dr. T. W. Harris, of Milton, Massachusetts. [Belongs to Ligyrus Burm. — Leg.] MELOLONTHA Fabr. 1. M. BALIA. — Chesnut-brown ; head and thorax blackish- brown; the former and the inferior surface of the stethidium hairy. [195] Body cylindrical ; head blackish, with small but dense and confluent punctures; front, below the vertex, and above the trans- verse impressed line, with a band of rather long dense ochreous hairs, terminating at the eyes ; clypeus deeply and widely emargi- nated, the edge reflected, and beneath the edge is a fringe of re- curved hairs ; thorax rather prominent on the middle of the lateral edge ; nearly as dark colored as the head ; punctures numerous, irregularly disposed : scutel with a few punctures, and with reflected prostrate yellow hairs at its base, parti)' covered by the base of the thorax : elytra confluently punctured, chestnut-brown: stethidium beneath, with dense pale yellow hair : nails with a prominent tooth on the middle, and an angle at base. Yar. a. Thorax rufo-castaneous. Length more than thirteen-twentieths of an inch. This common species was sent to me by Dr. J. F. Melsheimer, under the name which I have adopted. The following are his remarks : '^ it difi"ers from M. quercina in being more cylindrical, from M. qtiercus, in the absence of the " rore ccerulescenti," &c. and from M. hirticida, in the want of the triple series of fuscous erect hair on each elytrum. In its proper season this insect may be found in vast numbers under the deciduous leaves of forests ; during the night the millions of wings that fan the air, produce a loud humming sound, not unlike that emitted by the enraged occupants of a humble-bee's nest." 1825.] 298 ACADEMY OF NATURAL SCIENCES It is much smaller than the quercina, smaller than the hirtint'- la, and larger than quercus. [Belongs to Lachnosterna. — Leg.] [196] 2. M. EPHILIDA. — Ochraceous ; thorax somewhat rufous ; head blackish ; clypeus nearly entire. Head blackish, with sometimes an obscure chestnut disk ; very densely and confluently punctured ; punctures small : clypeus, anterior termination widely, but slightly truncated, not at all emarginated, the edge reflected : thorax pale rufo-castaneous. polished ; punctures irregularly scattered ; middle of the lateral edge rather prominent : scutel with a very few punctures, and with reflected prostrate hairs at its base, partly covered by the base of the thorax : elytra pale ochraceous, densely punctured : stethidium beneath, with pale yellow, dense hair : nails with a strong prominent tooth on the middle. Var. a. Scutel entirely destitute of punctures. Length three-fifths of an inch. . . * This species closely resembles the preceding, but it has a more robust form, it is somewhat shorter, destitute of the frontal band of hair, and is of a paler color. I adopt the name given to it by Dr. J. F. Melsheimer, who remarked in a letter to me, that " it approaches nearest to a Melolontha described by Pro- fessor Knoch under the name of angularis, but as the thoracic angles of that insect are covered with a substance resembling- Mother of Pearl, or, as the Professor expresses it, "einer farbe die vollig mit der kalkerde tiberein kbmmt ; welche von den Mineralogen Schaumerde genannt wird," we cannot connect with propriety, our insect with the M. angularis." In color it closely resembles the longitarsa nobis (in Long's second expedi- tion) but that [197] insect is somewhat smaller, with an emargi- nate clypeus and much longer tarsi. [Belongs to Lachnosterna ; Burmeister places it in Trichesfes, which is not entitled to be considered as a genus. — Lec] 3. M. MOESTA. — Elytra punctured, and with two double series of punctures ; clypeus slightly emarginated. Melolontha moesta Knoch in Melsh. Catal. Head with very dense profound punctures; transverse line be- tween the eyes rather deeply indented : clypeus with the margin [Vol. Y. OP PHILADELPHIA. 299 recurved, the tip very obtusely, but not very profoundly emargi- nated : thorax with scattered profound punctures ; lateral edge obtusely projecting a little, rather behind its middle : elytra with numerous punctures, and with two regular double series of punc- tures on the disk, one or two on the exterior submargin, and a single subsutural series : beneath glabrous : nails with a robust prominent obliquely truncated tooth beyond the middle. Length about one-half an inch. The color of young specimens is rather pale chestnut, but, as is the fact with respect to many species, as they grow older, the color becomes darker, and it is not uncommon to find individuals that are almost black. [A species of Diplotaxis, previously described as 31. Uherta Germ. — Leg.] 4. M. SORDIDA. — Covered with short dense hair. Melolontlia sordida Melsh. Catal. Superior surface entirely covered by short close set hairs, which are longest on the head, thorax, and base of the elytra; the punc- tures are also dense and confluent: clypeus with the edge reflect- ed ; tip widely emarginated : thorax, lateral edge reflected, and [198] a little dilated rather behind the middle: elytra having the subsutural line obliterated : beneath nearly glabrous : nails with an obliquely truncated, very robust tooth beyond the middle. Length about two-fifths of an inch. The color varies considerably. I have a specimen that is of a pale chestnut color, and others that are dark dull brown. I have found this species in iMay; and at Chinquoteague Island, many in- dividuals occurred under yellow. pine trees in company with the preceding species in October.- It is very well distinguished from other species by its equally distributed hairy covering. [Belongs to Diplotaxis, and afterwards described as D. carho- naria Burm. — Lec] 5. M. FRONDicOLA. — Elytra punctured, and with two double series of punctures ; clypeus entire. Melolontha frondicola Knoch, Melsh. Catal. Body pale chesnut : head dusky, with large confluent punc- tures ; transverse line angulated in the middle ; clypeus very ob- tusely rounded at tip, almost truncated, the edge reflected : thorax 1825.] 80Q ACADEMY OP NATURAL SCIENCES with rather large, very numerous punctures, more dense and con- fluent on the sides ; lateral edge a little obtusely dilated at the middle : elytra with numerous punctures, and with two double strias of punctures on the disk, one or two on the exterior sub- margin, and a single subsutural one : beneath glabrous : nails with a remarkably robust broad compressed truncated tooth. Length three- tenths of an inch. Although this species is very similar in some respect to the moesta, yet it is so much smaller as to [199] be readily distin- guished ; the clypeus also of that species is eraarginated, and the punctured series are much more regular than those of the present species, in which the punctures of the series are often confluent with the punctures of the interstitial lines. As regards, size, it is but little smaller than vespertina, which has numerous indented strias on the elytra. [Also a Dijylotaxis and appears to be D. testacea Burm. — Lec] 6. M. UNIFASCIATA. — Thorax very dark green ; elytra testa- ceous, with a black abbreviated band or spot on the middle. Head densely punctured, particularly before, very dark green- ish on the vertex, and tinged with cupreous before : clypeus en- tire at tip, the edge reflected : thorax blackish-green, rather sparsely punctured, punctures small, lateral edge a little dilated rather before the middle : scutel dark green, sometimes tinged with cupreous, with a few punctures : elytra pale testaceous, in a particular light having a slight metallic tinge, each with seven or eight regular striae of punctures, and a few scattered ones near the suture ; margin and suture dusky ; on the middle is a blackish band which is more or less interrupted or undulated : beneath black, slightly tinged with "green and cupreous : stethi- dium a little hairy : acetabulum with an indented longitudinal line : nails, of the anterior and intermediate feet having one nail simple, and the other bifid at tip, of the posterior feet simple. Length two-fifths of an inch. Var. a. Elytra, excepting at base, simple. This species is very closely allied to variuns Fabr., but it may be distinguished by its much larger size. [200] The varlans is not uncommon in Pennsylvania, but the present is a Southern species. Dr. J. F. Melsheimer gave it the name of vemalis, [Vol. V. OF PHILADELPHIA. 301 which is preoccupied in this genus ; he informed me that it " was captured in Virginia, in the early part of the year 1807. Male and female were flying about in a ploughed field in innu- merable multitudes." Judging from its habit, it belongs to Mcgerle's genus A^io- mala. [An Anomala previously described as M. hinotafa Schonh. — Lec] HOPLIA Illig. H. TRIFASCIATA. — Head black : clypcus at tip reflected : tho rax densely covered with reddish-yellow scales : feet brownish- red : scutel blackish : elytra light brownish-red, with sparse yel- lowish scales, which, however, are more dense iu some parts, so as to form three bands, which are tolerably distinct ; of these, one is at the base, the other on the middle, and the third near the tip ; they are somewhat undulated : anal segment and beneath densely covered with pale cinereous scales, which have, in some parts, a cupreous reflection. The opposite sex is black on those parts, which in the other are brownish-red, and the bands of the elytra are hardly discernible : in both sexes the humerus is pro-, minent, and at the decurvature of the elytra near the tip, they are elevated almost into an angle. Length nearly one-third of an inch. The great difference in color between the two sexes of this species, may readily deceive naturalists into the belief that they are two distinct species. • [201] [Described by Burmeister as H. jirimo^fa ; the male also by Melsheimer as H. tristis. — Lec] CETONIA Fabr. C. VESTITA. — Hairy; clypcus emarginate ; elytra with a few white spots. Body brownish-black, with very numerous, rather long, re- flected, cinereous hairs : head with the hairs smaller and sparse before ; clypeus widely emarginate at tip, the lateral angles sub- acute and a little elevated ; lateral margin not recurved : thorax with a carinated glabrous line, little elevated but very distinct : elytra with two hardly obvious elevated lines on the middle, con- 1825.] 802 ACADEMY OF NATURAL SCIENCES fluent behind ; striae slightly impressed, with small punctures ; on each elytrum is a small white dot on the middle of the sutural submargin, another behind the middle and approaching nearer to the suture, three oblique ones on the exterior submargin, and a transverse one at tip near the suture. Length two-fifths of an inch. This species resembles the sepulchralis Fabr., but it differs in having the clypeus emarginated, the hairs of the body elongated, and the spots of the elytra fewer in number. In form it is more slender than that well known species, and its color more opaque and less metallic. It is much more closely allied to the C. hirta Fabr., of Europe, the spots being nearly similar ; but the vestita is one half smaller, and the hair is much coarser and much less abundant ; can it be a variety of that species ? I have met with but two specimens, one beloning to the Phila- delphia Museum, and the other sent to me by Dr. T. W. Harris, of Milton, Massachusetts. [202] [Unknown to me ; believed by Schaum and other entomolo- gists to be the European species. — Lec] LUCANUS Linn. Latr. 1. L. PLACIDUS. — Head small, slightly concave; tooth of the mandibles emarginate. Body dark reddish-brown : head slightly concave, rather nar- rower than the thorax : mandibles hardly as long as the head, regularly curved ; tooth a little beyond the middle, not very pro- minent, but rather wide and emarginate at tip : elytra without striae : anterior tibiae about four-toothed, superior tooth small. Length one inch. I found this species when with Major Long's party in Arkansa. It differs from the dama Fabr. in being smaller, in having the head narrower than the thorax, the mandibles shorter and less arcuated, and their tooth wide and bifid at its tip. [Appears to be the female of L. lentus, a species cited from Say, but of which, as Burmeister observes, no description can be found in his writings ; it was first published under that name by Laporte, in his Hist. Nat. 2, 71. The name placidus has greatly the priority. — Leg.] [Vol. V. OP PHILADELPHIA. 303 2. L. BREVis. — Short and wide ; mandibles one-toothed ; ely- tra smooth, humerus mucronate. Body robust, reddish-brown : head wide, rather narrower than the thorax, minutely punctured, a little concave above the man- dibles ; mandibles short, with one simple oblique tooth on the mid- dle, extending inwards and forwards ; thorax wide with minute punctures, angles rounded; posterior ones not obliquely truncated; elytra nearly smooth, having numerous small punctures, and ob- solete, hardly impressed lines ; humerus mucronate : anterior ti- biae with five or six small denticulations, and a broad terminal, prominent one widely emarginate; intermediate tibiae with a single spine on the middle. [203] Length nearly nine-tenths of an inch. This species seems to be related to parallelus nobis, but it is much wider in proportion to its length, and there are no distinct striae on the elytra. [A species of Dorcus unknown to me. — Leg.] TENEBMO Fabr. 1. T. REFLEXUS. — Blackish-green ; edge of the clypeus re- flected ; thorax subquadrate. Tenehrio seruginosus Melsh. Catal. Body very dark green, almost black : head minutely and densely punctured, anterior edge of the clypeus regularly ar- cuated and reflected ; antennae black ; palpi blackish piceous ; thorax rather transversely quadrate, minutely and densely punc- tured ; angles subacute : elytra with impressed, punctured striae ; interstitial lines depressed, almost flattened, obsoletely punc- tured : tibiae, anterior pair of the male with a prominent angle above the middle, and with the second pair much arcuated on the inner side. Length three-fifths of an inch. The specific name seruginosus is preoccupied. [This belongs to Centronipus, and is T. calcaratus Fabr. — Lec] 2. T. RUFIPES. — Black, polished; terminal joint of the an- tcnnse pale fulvous ; thighs bright rufous. Tenehrio rufipes Melsh. Catal. Body oblong, black, polished : antennae black, two basal joints piceous, terminal joint, except at its base, fulvous : thorax 1825.] 304 ACADEMY OF NATURAL SCIENCES rather narrower than the elytra, and with the head densely and minutely punctured : elytra with impressed, punctured striae, and convex interstitial lines : thighs bright rufous ; tibiae, anterior [204] pair of the male with a short spine on the inner middle. Length half an inch. I have stated this insect to be polished, in order to distinguish it from the Upis fulvipes Herbst, which it very much resembles, and with which it is strictly congeneric. [Also a Ccntronipus. — Lec] [Continuation from Vol. 5, Nov., 1826, pp. 237—284.] OPATRUM Fabr. 1. 0. NOTUM. — Brownish-black : elytra with regular series of impressed punctures. Ojoatrum clathratum Melsh. Catal. Head with small, close set punctures ; terminal emargination not angulated : thorax with small, close set punctures ; lateral edge reflected ; posterior angles somewhat produced subacute : elytra destitute of impressed striae, but with regular series of large, profoundly impressed, rather longitudinal punctures ; tsrsi piceous. Length less than seven-twentieths of an inch. This does not correspond with the description of the clathra- f,um Fabr., inasmuch as the elytra are not striated. It is common. [Belongs to Opatrinus. — Leg.] 2. 0. PULLUM. — Brown J head and thorax darker; elytra with punctured striae ; beneath reddish-brown. Desc. Head and thorax dark-brown, minutely and densely punctured ; posterior angles not prominent 3 lateral edges not re- flected : antennae piceous ; terminal emarginations of the clypeus not angulated : elytra with impressed, punctured striae, the punc- tures profound, somewhat transverse; interstitial lines with numerous small punctures : beneath reddish-brown. Length rather more than three-tenths of an inch. [238] I obtained this species on the margin of the Arkansas river, [Vol. V. OF PHILADELPHIA. 305 when with Major Long's party. It may be distinguished from the preceding by the striated elytra, and by the simple edge of the thorax. [Unknown to nie, pei'haps a Blapstinus. — Lec] BOROS Herbst. B. UNICOLOR. — Blackish-brown, punctured ; thorax not obvi- ously indented behind. Body depressed, rather slender, blackish-brown, punctured : head suboval, punctures rather large, numerous; smaller before ; a dilated indentation each side anterior to the eyes : antennae but little longer than the head : thorax oval, accurately rounded each side, punctures numerous, rather large ; no indentation : elytra with irregular, numerous punctures, smaller than those of the thorax, not disposed in any regular series; au obtuse indented line on the outer margin, and another at the suture. Length nine-twentieths of an inch. I received this insect from Dr. J. F. Melsheimer, under the name I have adopted. It is certainly very closely allied to B. elongatus Herbst, but judging by the figure givei^ by this author, it is much smaller ; it is also destitute of any obvious indentation on the posterior part of the thorax. [On comparison I find the sides of the thorax to be a little more rounded than in the European specimens. — Lec] BOLETOPHAGUS Illig. B. CORTICOLA. [Ante, 1, 115.] [239] EUSTROPHUS Illig. E. TOMENTOSUS. — Brown ; golden sericeous ; elytra immacu- late. Mycetophagus tomcntosus Melsh. Catal. Body oblong-oval, regularly and equally roimded, before and behind ; brown, covered with very numerous, bright sericeous hairs : antennae and palpi rufous : thorax but little undulated on the posterior edge : elytra with slender, punctured striae : beneath color of the antennae. Length one-fifth of an inch. At first view, this might be mistaken for the E. bkolor Fabr. 1826.] 20 306 ACADEMY OP NATURAL SCIENCES Dej., but that species is considerably larger, of a much darker color, almost black, with a comparatively slight opal-sericeous gloss ; the antennse also are blackish, with the base and tip rufous or fulvous; the bi/asciatus nob., has banded elytra. [240] HELOPS Fabr. 1. H. PTJLLUS. — Body short, very convex, somewhat cupreous ; third joint of the antennae not greatly longer than the fourth. Melojjs jiullm Melsh. Catal. Antennae piceous ; third joint hardly as long as the fourth and fifth together ; the two latter equal : eyes moderate : head and thorax densely and equally punctured; anterior angles of the latter subacute ; lateral edge slightly contracted behind the an- terior angles : elytra rather paler than the head and thorax, and more obviously cupreous, with punctured striae : pectus each side, with numerous, longitudinal, impressed lines ; tarsi dark rufous. Length from one-fourth to three-tenths of an inch. In general form, it somewhat resembles H. contractus Beauv.; particularly in the great convexity of the superior surface of the body ; but it cannot be mistaken for that insect. 2. H. POLITUS. — Cupreous ; elytra united ; wings imperfect. Body bright copper, polished ; punctured : antennae long, blackish ; third joint equal to the fourth and fifth together, which are equal ; labrum piceous : eyes moderate : thorax de- cidedly widest before, narrowest at the posterior angles, with small, close set punctures, and a longitudinal, obsolete, impressed line : elytra united, the line of the suture distinct, with acutely impressed, punctured striae; interstitial lines flat, with very minute punctures : wings imperfect, shorter than the elytra : beneath piceous. [ 241 ] Length two-fifths of an inch. I obtained this handsome and curious species in East Florida. [Seems to be related to H. cisteloides Germ., but does not agree satisfactorily with that species. — Leg.] ^ 3. H. TENUicoLLis. — Blackish ; terminal joint of the antennae fulvous; thorax cylindrical. Body elongated, brownish black: eyes large: antennae rather short; fifth joint obviously shorter than the fourth; terminal [Vol. V. OF PHILADELPHIA. 307 joint fulvous : thorax minutely and equally punctured ; narrow, sub-cylindric, slightly wider in the middle, equally wide at base and tip ; narrower than the elytra : elytra with rather wide and profound striw, which are punctured ; interstitial lines narrow, convex ; beneath piceous : anterior tibiae slightly arcuated. Length half an inch. This species resembles a I'pis, in the form of the thorax. [A Stcnochid not different from S. tcrminata Say, ante, 2, 157.— Lec] 4. H. ARATUS. — Body short, moderately convex; third joint of the antennse rather shorter than the fourth and fifth united; lateral thoracic edges rectilinear. Head punctured densely : antennje dark testaceous : thorax dull metallic greenish, slightly tinged with purplish ; thickly punctured, punctures rather large ; angles subacute ; lateral rectilinear : elytra slightly purplish, brassy, with punctured strise, and smaller punctures on the intermeditae spaces : beneath blackish : pectus punctured on each side, with small, close set, longitudinal impressed lines : feet reddish-testaceous at base. Length one-fourth of an inch. [ 242] I am indebted for this species to Mr. Jno. S. Skinner, editor of the American Farmer, who received it from a correspondent, with a note, stating that they had been found on the body of the peach tree, just below the surface of the ground. [I cannot identify this species ; it does not appear very dis- tinct from H. pullus. — Lec] CISTELA Fabr. 1. C. OBSCURA. — Blackish-brown, with short hairs ; antennae and feet dusky rufous ; striae of the elytra not deeply impressed. Cistela ohscura Melsh. Catal. Body oblong, varying in color from a light brown to a blackish, with numerous short pale hairs arising from punctures : head transversely a little indented between the antennae : antennae moderate, dark rufous : palpi rufous : thorax with the posterior angles subacutely rounded : elytra with slightly impressed striae, their punctures profound : beneath piceous, and, excepting the pectus, punctured : feet rather paler, somewhat rufous. Length % lessthan one-fourth ; 9 more than three-tenths of an inch. 1826.] 808 ACADEMY OF NATURAL SCIENCES The male In my specimens is of a paler color than the female. It differs from the atra nob., by having the striae of the elytra much less deeply impressed. The palpi are all terminated by a joint formed like a reversed triangle ; it therefore belongs more properly to the genus AUc- ritla of authors. 2. C ATRA; — Blackish-brown, with short hairs ; striae of the elytra deeply impressed. Cistela atra Melsh. Catal. [243] Body nearly black, with a tinge of brown, with numerous short blackish hairs, arising from punctures : head transrersely indented between the eyes ; antennae dark fuscous, nearly half as long as the body, terminal joints somewhat ovate, and slightly petiolated : thorax with the posterior angles subacutely rounded : elytra with rather deeply impressed, punctured striae : beneath dark rufo-pieeous. Length three-tenths of an inch. It may be distinguished from the preceding, by the form of the terminal joints of the antennae, as well as by the more deeply impressed striae. [The name having been previously employed, this species has .been described by Dr. Melsheimer as AUecida ni'jraas. — Leg.] MORDELLA L. Fabr. 1. M. TRIFASCIATA. — Testaceous, disk of the thorax and three bands of the elytra black. Mordella tvifusciata Melsh. Catal. Body pale testaceous : head immaculate : thorax with the disk and anterior margin black : elytra with a black band at base, ^irregular on its posterior edge, and extending a short distance .down the suture; another on the middle, rather narrower at the suture, and a third at tip : beneath, excepting the pectus, dull jjiceous, slightly yellowish sericeous : feet pale. Length one-tenth of an inch. 2.. M. ATTENUATA. — Pale rufous ; thorax with a black spot ; vAytra black, with an abbreviated rufous vitta. />e.sc. Body rufo-testaceous : antennae black, four basal joints pale rufous : thorax with a large black spot on the anterior disk : [Vol. Y. OF PHILADELPHIA. 300 elytra black, a rufo-teataeeous [244] vitta, commencing at the middle of the base where it is broadest, and gradually attenuated to the tip, which does not reach the middle ; a sericeous vitta extends the whole length in a particular light, more distinct towards the tip : postpectus, venter and posterior feet piceous, sericeous : anterior and intermediate feet pale rufous. Length less than one-fifth of an inch. ANASPIS Geoff. A. RUFA. — Entirely rufous, immaculate. MordeUarnfa Melsh. Catal. Body rather dull rufous, more obviously sericeous on the elytra : beneath clearer rufous : feet somewhat paler ; antennae longer than the thorax. Length more than one-tenth of an inch. ANTHICUS Fabr. 1. A. CONSTRICTUS. — Black ; elytra dark rufous at base ; tho- rax very much contracted behind the middle. Desc. Head black, polished : antennae blackish-pieeous : thorax black, polished, very profoundly contracted behind the middle, bilobate, anterior lobe much the larger : elytra dull rufous, gradu- ally becoming darker towards the tip, which is almost black ; with regular series of impressed punctures : thighs blaekish, rather dilated : tibiae dull rufous. Length one-tenth of an inch. Differs from clnrtus nob., by having the thorax much more profoundly contracted, and in being destitute of any cinereous band, or terminal spot. [Belongs to Tomode r us Yerie. — Lec] [245] 2. A. BIKASCI.'VTUS. — Eufous ; elytra with a black band and tip. Head darker than the thorax : antennae and palpi paler than the head : thorax gradually narrowed behind, not abruptly con- tracted : elytra ii'regularly punctured ; a black band on the mid- dle, a little dilated on the outer margin, and slightly interrupted at the suture ; a terminal black band : beneath pale rufous. Length one-tenth of an inch. Comes near to basilar is nob.; but, in addition to its difference 1826.] 310 ACADEMY OF NATURAL SCIENCES in having the elytra banded, the base of these wing-sheaths is not turgid, as in that species. I obtained a specimen in East Florida, when in that country with Mr. Maclure's party. [The name being preoccupied, this was afterwards named by Ferte A. hizonatus; it does not, however, appear diiferent from his A. cervinus.'^—ljS.c.'\ 3. A. PALLIDUS. — Pale; elytra with a broad band and narrow suture, blackish. Head and thorax pale ochreous ; the latter with a moderate longitudinal groove, and gradually narrowed towards the base; the lateral curvature behind the middle being somewhat concave : elytra pale yellowish ; basal margin dusky ; a dilated blackish band on the middle much dilated on the exterior margin, and at the suture ; on both of which, it extends in a narrow line to the base and tip; punctures not distinct; beneath pale rufous; feet whitish. Length one-tenth of an inch. This may be distinguished by its thoracic groove, pale color^ single band, and marginal lines. [I have not identified this species. — Lec] 4. A. POLITUS. — Blackish ; thorax not narrowed behind ; ely- tra bright rufous. [246] Body with rather long hairs : head blackish : antennae dull rufous : thorax blackish, rather short, not obviously narrowed behind ; a transverse impressed line at base : elytra impunctured, polished, rounded, bright rufous, at the somewhat pointed and blackish : feet bright rufous. Length more than one-twentieth of an inch. The form of the thorax and elytra of this species are quite different from those of the preceding species. [I have failed to identify this insect.. — Lec] 5. A. LUGUBRis. — Black, impunctured ; two basal joints of the antennae and mouth rufous. Inhabits Missouri. Body black, impunctured, slightly hairy : head polished : an- tennae a little serrate, two basal joints obscure rufous : mouth ob- solete piceous : thorax polished, transversely oval, orbicular, a [Vol. V . OF PHILADELPHIA. 311 distinct impressed transverse line at base : elytra opaque, rather hairy, with minute transversely-confluent punctures. Length less than a quarter of an inch. Found near Fort Osage. [This and the four following species belong to Pedilm. This one is described as Pyrochroa inoniata Randall, Ped. imus New- man, and Ped. nigricans Ziegler. — Lec] 6. A. coLLARis. — Black; thorax rufous; two basal joints of the antennae at tip dull rufous ; mouth pale. Inhabits 3Iissouri. Body black, impunctured, a little hairy : antennae a little ser- rate, two basal joints dull rufous at tips : mouth pale, palpi dusky ; thorax transversely oval-orbicular, rufous, polished, a transverse impressed basal line : elytra hairy, with small, numerous, irregular punctures. Length one-fifth of an inch. [247] Distinguished from the preceding by the color of the thorax. [Afterwards described as Ped. rufithorax Newman, and P. marginicollis (var.) Ziegler. — Leg.] 7. A. TERMiNALis. — Black, punctured ; thorax rufous ; elytra yellowish-white at tip. Inhabits Missouri. Body black, punctured, with short hair : head polished, im- punctured : antennae black-brown : labrum and mouth yellowish- white : maxillary palpi dusky at tip : thorax rufous, transversely oval, impunctured, a transverse impressed basal line : elytra with transversely confluent punctures, a yellowish-white terminal spot: pectus rufous: nails one-toothed beneath. Length more than one-fifth of an inch. Found in Missouri and Arkausaw. [Probably the male of Ped. coUuris. — Lec] 8. A. LABIATUS. — Black, exterior margin of the thorax, cly- peus, labrum, and basal joints of the feet rufous. Inhabits Missouri Territory. Body black, with minute punctures : head obsoletely piceous on the vertex, a little indented above the antennas : antennae fili- form, somewhat serrate, two first joints rufous : clypeus, labrum, and mouth, rufous : mandibles black : thorax punctures sparse, 1826.] 312 ACADEMY OF NATURAL SCIENCES a longitudinally oval rufous spot on the lateral margin, and a transverse impressed line and spot at base: scutel rounded at tip: elytra densely punctured, tip mucronate, and with an indented spot : coxae and trochanters rufous : pectus rufous, a lateral, sub- marginal black spot. Length about seven-twentieths of an inch. [248] Taken on the lower Missouri, near Fort Osage : closely allied to the preceding species. [Afterwards described as Pi/rochroa infumata Hentz, and Ped. marcjinuollis Ziegler. — Leg.] 9. A. iMPRESsus. — Black : thorax rufous j an indented spot at the tip of each elytra. Inhabits Pennsylvania. Mouth, antennae, two basal joints, and palpi at base, dark rufous : thorax rufous, with a longitudinal slightly impressed line : elytra densely and irregularly punctured ; a large profound, indented, oval impunctured spot at the sutural tip of each elytra. Length three-tenths of an inch. Resembles A. collaris, but is distinguished by its somewhat larger size, and the profoundly impressed spot at the tip of each elytra. I found this species early in May, attached to the side of a Meloe angusticolUs, which was perfectly at rest upon the ground, not appearing to be in the slightest degree incommoded by the weight of its temporary parasite, but seeming rather pleased with its society. This species and the luguhris, collaris, terminaUs, and labiatus, differ much from the other species of the genus that have come under my observation ; but as they appear to me to approach more closely to this genus than to any other, T place them here for the present. ANTHRIBUS Fabr. 1. A. NOTATUS. — Black; head, thorax each side before, and elytra at base and tip, with a gray spot. Anthribus notatus Melsh. Catal. Head entirely gray above : antennae piceous-black : [249] tho- rax with an irregular gray spot each side before, connected by a line of the same color, on the anterior margin ; about four very small obsolete gray spots, of which one is each side near the [Vol. Y. OF* PHILADELPHIA. S13 base, and the others near the middle : elytra with a longitudinal, irregular gray spot at the base of each, a smaller one near the subsutural middle, and a band at tip : tibia with a gray band on the middle : tarsi, first joint gray : venter gray at tip, with three black dots each side. Length a quarter of an inch. This species is not common. [This is A. luijuhris Oliv., and belongs to Cratoparis Schonh. — Leg.] 2. A. CAPiLLicoRNis. — Blackish ; antennae elongated, very slender ; elytra with black spots. Anthribus capillicornis Melsh. Catal. Body brownish-black : head with small dense punctures, plane, not elevated between the eyes : antennae much elongated, nearly two-thirds the length of the body; basal joint dull rufous at the incisures : thorax with small dense punctures, immaculate, ele- vated line of the posterior margin parallel with the edge, entire : elytra with punctured striae ; interstitial lines with quadrate, velvet black spots : tibia with an obsolete gray band. Length three-twentieths of an inch. The antennae are very long and slender ; but in other respects they resemble those of the neighboring species. [This is ^1. coffese. Fabr., and belongs to Arsecetvis Schonh. — Lec] 3. A. 4-NOTATUS. — Blackish ; a humeral spot and common band, dull rufous. Anthribus 4:-notatus Melsh. Catal. Head with dull yellowish hair: a little elevated [250] between the eyes : antennas shorter than the thorax, piceous at base : tho- rax slightly varied with the yellowish hair ; punctures rather large ; line of the posterior margin, nearly parallel to the edge, entire : elytra with striae of large punctures ; a dull rufous, irre- gular, humeral spot, and an abbreviated common band of the same color behind the middle; on the posterior declivity are several somewhat elevated tubercles, of which the superior is largest : tibia annulate with testaceous, more obvious on the posterior pair. 1826.] 314 ACADEMY OF NATURAL SCIENCES Var. a. Abbreviated band of the elytra grayish. Length more than three-twentieths of an inch. [This is A. himaculatus Oliv., and belongs to Tropidercs Schonh. — Lec] 4. A. LIMBATUS. — Testaceous; rostrum short; striae of the elytra subacute, with small punctures. Anthrihus limhatus Melsh. Catal. Body rufo-testaceous, with short pale ochreous hair : front a little convex : rostrum short : antennse rufous : thorax with the line of the posterior margin prominent, a little undulated, ap- proaching the posterior edge in the middle ; elytra, striae narrow, punctures not large : beneath dusky : feet rufous. Length three-twentieth of an inch. [Belongs to Brachytarsus. — Lec] 5. A. ALTERNATUS. — Robust ; elytra with series of alternate gray and black spot. Body short and thick, densely hairy, brownish-cinereous : head plane, not prominent between the eyes : antennae moderate, pale rufous, three last joints fuscous : thorax with a few black spots ; elevated line of the posterior margin not prominent, placed near, and parallel to the posterior edge : elytra with punctured [251 ] strise, alternate interstitial lines, with alternate black and gray spots : feet rufous ; thighs dusky ; tibiae with about two dusky bands. Length three-twentieths of an inch. This may readily be distinguished from A. capiUicornis, by the much shorter antennae, and more robust form of body. [Also a BracJiytarsiis. — Lec] 6. A. VARiEGATUS. — Varied, with blackish and dull yellow- ish ; elytra, each with two larger spots. Anthrihus variegatus Melsh. Catal. Body dull ochreous, varied with blackish, with very short hair : head plane, dusky, paler towards the tip : antennae moderate, pale rufous, three terminal joints fuscous : thorax much varied with blackish, which does not extend on the ante- rior margin : elytra with hardly obvious striae, with many small orbicular, blackish spots, and two larger spots on each, of which one is near the sutural base, and the other rather beyond the [Vol. V. OF PHILADELPHIA. 315 middle, near the suture : feet pale rufous : thighs blackish in the middle. Length more than one-tenth of an inch. The two spots of eaeh elytron are sometimes united by an intervening blackish sutural line. The species is not uncommon, and I have found it on the '' smut " of wheat. Mr. Lea took eighty individuals from six heads of wheat. [Subsequently described by Schonherr as Bvachytarsus obso- letus. — Lec] 7. A. TOMENTOSUS. — Body short, blackish, tibiae rufous. AnthrUms tomentosus Melsh. Catal. Body robust, short, dark reddish-brown, covered by short, yellowish-cinereous hair : head on the vertex [252] and between the eyes a little convex : antennae rufous, at tip fuscous : thorax rather convex transversely in the middle, a little depressed before the base ; posterior angles acute : elytra with punctured striae^ immaculate : tibiae rufous ; terminal joint of the tarsi blackish. Length less than one-tenth of an inch. This species does not appear to be common. It is much smaller than either of the preceding. [Described by Schonherr as Brachy tarsus hrevis — Leg ] ATTELABUS Fabr. Dej. 1. A. PUBESCENS. — Dull rufous, with short yellow down, Attelabm puhescens Melsh. Catal. Body above dull rufous, the whole surface covered with thick set, somewhat matted, short yellowish down : head with very small punctures at base, and large ones at tip ; an elevated frontal longitudinal line : rostrum much contracted between the antennae, dilated before : thorax with an indentation each side of the middle : elytra striate, and with irregular punctures : venter nearly naked : feet naked, bright rufous. Length about one-fifth of an inch. This species is not uncommon. Dr. Melsheimer found it on the leaves of the Corylus americana. [This was previously described as A. rJiois Boheman. — Leg.] 2. A. SGUTELLARis. — Black ; antennae and tarsi rufous ; scutel white. 1826.] 316 ACADEMY OP NATURAL SCIENCES Body deep black, much punctured : head short behind the eyes, with distant punctures, more dense on the rostrum : an- tennae rufous: thorax with numerous [253] dense punctures: scutel white : elytra slightly hairy, with punctured striae ; the interstitial lines crenate : feet piceous : thighs with a slight angle on the inferior middle : tarsi rufous. Length one-tenth of an inch. I obtained two specimens on the Kalmia latifolia in July. It is a small species. [Is the type of Piazorhinus Schonh. — Leg.] APION Herbst. 1. A. ROSTRUM. — Black ; thoracic punctures large, dense ; an impressed line, and punctures between the eyes. Rhi/iicliites rostrum Melsh. Catal. Body entirely black : vertex impunctured : front with large punctures, and a longitudinal impressed line ; an impressed lon- gitudinal line between the antennae : thorax with large, concave, close set punctures ; an impressed, abbreviated line on the mid- dle of the posterior submargin : elytra striate, the striae rather wide, punctured, interstitial lines flat topped with a single series of small hairs. Length from the tip of the rostrum less than three-twentieths of an inch. This is a very abundant species. Dr. J. F. Melsheimer found it on the leaves of the Robin ia ])setidacana ; and Dr. Harris of Milton, Massachusetts, informs me that it occurs in all its stages in the seed vessels of the wild indigo, (^BapHsia tinctoria,') in the months of August and September. I have also taken it in plenty on that plant. It seems to be allied to [254] the A. ni- grum Herbst., but it does not agree with his figure, nor sufiS- ciently well with his description. [Afterwards described as A. Sayi Sch. — Lec] BRACHYCERUS Oliv. Fab. B. HUMERALis. — Body inequal, with punctures furnishing small hairs; humeral angles advanced. Inhabits Arkansa. Body black, punctured, and with minute punctures furnishing [Vol. y. OP PHILADELPHIA. 817 fihovt, robust, filiform, white remote hairs : head transversely in- dented at the base of the very short rostrum, and with a very profoundly impressed abbreviated frontal line : antennae, termi- nal joint oval, acute : thorax inequal, widest in the middle, punc- tures dilated, preceded each side by small tubercles ; anteriorly profoundly excavated, for the reception of the proboscis : elytra with double series of dilated punctures, each puncture preceded by an obtuse, slightly elevated tubercle, and each double series of punctures above separated by a slightly elevated interstitial line ; humeral angles projected forwards, and embracing the lateral base of the thorax ; obtuse at tip, and rugged. Length seven-twentieths of an inch. Male more than one-fifth of an inch. Not uncommon near the head waters of the Arkansa river ; where I obtained a few specimens, when with Major Long's party. It is remarkable by the profound excavation in the anterior face of the trunk, for the reception of the rostrum ; the antennae also do not perfectly agree with [255] those of the genus; these and other distinctions would authorize the formation of a new sub- genus, which may be named — ■■ — -■ — . [The type of Litliodm; afterwards named Theccstenms by Say; ante 1, 267.— Lec] BOSTRICHUS Fabr. [TOMICUS Latr.] 1. B. EXESUS. — Rufous; elytra excavated at tip, each six or eight-toothed. Bostrichus excsus Melsh. Catal. Body with short, numerous, ochraceous hairs : head ferruginous, with numerous small elevations : antennae, club rather lai'ge : thorax ferruginous, rough, with numerous elevated points before ; behind with rather distant punctures : elytra darker rufous than the thorax, with punctured striae ; punctures large, transverse ; posterior declivity excavated, with large punctures, and armed on each side with six or eight teeth ; the first and third being sometimes obsolete, the fifth a little larger. Length more than one-fifth of an inch. Eats a straight, zig-zag, or waved pas.sage between the bark and wood of the yellow pine, (^PinKS mifi's MicLaux,) when cut 1826.] 318 ACADEMY OF NATURAL SCIENCES down or decaying : they are numerous, and many die when per- fect, being unable to cut a passage through the bark. [Previously described by Germar as T. calUgraphus. — Leg.] 2. B. FASCiATUS. — Blackish ; thorax at base and ba nd on the elytra, ferruginous. Bostrichus Jasciatus Melsh. Catal. Body brownish-black : thorax rough before, with slightly ele- vated rugae, and with a few hairs ; behind glabrous, impunctured, and pale ferruginous : elytra [256] destitute of striae, punctures obsolete ; basal half pale ferruginous ; sutural region dusky ; posterior declivity hairy, slightly truncated, towards the suture, indented. A^'ar. a. Band of the elytra occupying the greater portion of the surface, and of a clay color. From Sinipuxent. Length more than one-tenth of an inch. [Belongs to Corthi/Ius Er. — Lec] 3. B. XYLOGRAPHUS. — Rufous ; elytra with series of punc- tures and short points on the posterior declivity. BostricJius xylographus Melsh. Catal. Body somewhat polished, a little hairy, rufous : thorax rugous to the middle, on the centre of which is an obtuse, hardly raised tubercle, behind which the surface is smooth, with a few very small punctures : elytra with series of slightly impressed punc- tures, the interstitial lines with minute punctures, furnishing hairs ; posterior declivity not truncate, but with small denticula- tions on the interstitial lines. Length much less than three-twentieths of an inch. This insect is abundant in forests of the pine, (^Plmis mitts Mx.,) to which it is very destructive. Immediately beneath the bark, on the wood, it excavates a rectilinear groove, with short, equal, lateral grooves at right angles with the preceding. It varies considerably in size. 4. B. POLITUS. — Rufous, with rather long hair ; elytra entire. Apate politus Melsh. Catal. Thorax with elevated rather distant points before, [257] gradually disappearing towards the base : elytra punctured, punc- tures not regular in series ; tip simple : feet yellowish : tibiae narrowed at tip. [Vol. V. OP PHILADELPHIA. 319 Length more than one-teuth of an inch. [Belongs to Xi/lotcrea. — Leg.] 5. B. PINI, — Dark chestnut ; elytra excavated at tip, each about four toothed. . .-^ ^ \ Melsh Catal. '' pint 4 Body somewhat hairy, chestnut brown : head with minute ele- vated points : antennre pale rufous : thorax punctured, more par- ticularly hairy before and on each side ; before the middle, with numerous small elevated points, more acute towards the anterior margin : elytra more particularly hairy each side, with striae of transverse punctures ; interstitial lines impunctured ; tip trun- cated obliquely, and excavated ; the exterior edge on each side with four denticulations, of which the second from above is the largest, and the inferior one is smallest and most acute ; there are sometimes two very small ones above, near the suture. Length three-twentieths of an inch. This species is very closely allied to B. exesus. It is very de- structive to many species of pine. Mr. Z. Collins informs me that it depredates on the \?ivc\i, (^Pinus pendula? A.\ion.) Dr. J, Mease recently exhibited to me some sections of limbs of the Silver pine [Pinus strohus) trees, which decorate the public squares of this city, now discovered to be seriously injured by the attacks of this insect. [258] HYLURGUS Latr. H. DENTATUS. — Head plane ; body reddish-brown ; elytra with impressed, punctured striae. Head blackish, with short hairs : antennae rufous : thorax blackish, passing into dull rufous at base ; with numerous hairs rather shorter than those of the head ; punctured : elytra dull rufous, with numerous short hairs ; striate, the striae deeply im- pressed, and giving the prominent basal edge a dentate appear- ance ; interstitial lines rough, with raised points, which are more prominent and destitute [distinct?] towards the tip; beneath dark reddish-brown : feet rufous. Length nearly one-tenth of an inch. Resembles the y>oH^a?(s Fabr. ; but the head is destitute of spines, and the elytra are less prominently aculeate, I have re- 1825.] 320 ACADEMY OP NATURAL SCIENCES cently received an individual from Dr. T. W. Harris of Milton, Massachusetts. [I have a species of Hylesinus which agrees with this descrip- tion, but the elevated punctures are hardly more distinct at the tip. Fhlceotrihus liminaris also agrees, except that the front is concave with two distant small acute tubercles. — Lec] APATE Fabr. A. PUNCTATUS. — Black-brown : posterior declivity of the ely- tra carinate on the exterior submargin. Apate pivnctatus Melsh Catal. Body confluently punctured : head rough : antennae piceous, three exterior joints yellowish, decidedly transverse : thorax be- fore rough, with elevated, thick points, which disappear towards the base, and are there supplied by discoidal punctures : elytra with large, impressed punctures, which can hardly be traced into a series; tip rather abruptly declining, [259] with prostrate yellowish hairs, and a carinate line on the exterior submargin. Length more than three-twentieths of an inch. CLYPEASTER And. Latr. C. FASCIATUS. — Thorax yellowish, with a dusky disk ; elytra black, with a yellowish band. Body rather oblong-oval, depressed, with jBne prostrate hairs : antennae dusky at tip : thorax honey-yellow, blackish on the disk ; anterior margin regularly rounded ; posterior margin but little undulated : elytra very obtusely rounded at tip, almost truncate, black, with a honey-yellow band a little beyond the middle, and the edge of the tip somewhat dull yellowish : beneath dusky : feet honey-yellow. Var. a. Elytra honey-yellow, with a paler band. Length about one-twentieth of an inch. I refer this little insect to the present genus, by its form of body. It is very like a small Cassida, and the head is equally concealed by the clypeiform thorax. [The name Clypeaster being preoccupied for a genus of Echi- noderms, I have given the name Sacium to this genus ; Proc. Acad. Nat. Sci., Phila., 6, 144.— Leg.] [Vol. V. OF rniLADELPHIA. 321 CERYLON Latr. C. CASTANEUM. — Reddisli-brown, punctured, palpi bright yel- lowish ; elytra striate. Inhabits the United States. Body reddish-brown, punctured, glabrous : antennae paler : palpi pale reddish-yellow, polished : thorax widely and slightlj indented at base, each side of the [260] middle; punctures nu- merous distinct, posterior angles rectangular : scutel transversely linear : elytra with the striae impressed, punctured. Length rather more than one-fifteenth of an inch. This species is not uncommon. I have found it in various parts of the Union, and as far west as Missouri. MYCETOPHAaUS Fabr. 1. M. PUNCTATUS. — Blackish ; elytra rufous, with a large dot; scutel and tip black. Mycetophagus punctatiis Knoch, J. F. 3Ielsheimer. Body blackish-piceous, with short hairs : antennae and mouth piceous : thorax immaculate, with a small indentation each side, on the basal margin : scutel black : elytra with punctured striae ; rufous ; region of the scutel black ; a large black spot ou the middle, confluent with the lateral margin, and extending on thfit part to the humerus, and in the opposite direction to a large, subterminal black band ; a small fulvous tip. Length more than one-fifth of an inch. 2. M. FLEXUOSUS. — Blackish ; elytra rufou.«, undulated with black. Mycetophagus fiexxtosus Melsh. Catal. Body blackish-piceous, with short hairs : antennae, terminal joint fulvous : thorax indented each side on the posterior margin : elytra with punctured striae, yellowish rufous ; a transverse quad- rate black spot on the region of th^ scutel ; a small rounded one on the [ 261 ] humerus ; a large irregular one on the exterior middle, sometimes not interrupted by the suture, and a large black spot on the tip, enclosing a small fulvous spot; beneath pale piceous. Length more than three-twentieths of an inch. 1826.] 21 822 ACADEMY OP NATURAL SCIENCES Closely allied to the preceding, but is much smaller, and the markings are always diflFerent. 3. M. 6-PUNCTATUS. — Blackish ; elytra with three spots of yellowish hairs. Myretophagus Q-punctatus Melsh. Catal. Body blackish-brown, with short yellowish sericeous hairs : an- tennas with the three last joints larger : labrum yellowish : thorax with an abbreviated, obsolete longitudinal line on the posterior margin, each side: elytra with regular series of hairs, more obvious towards the exterior margin ; a dense group of hairs on the middle of the base, forming a spot on that part ; a subsutural one is before, and another behind the middle : beneath piceous : tarsi paler. Length rather less than one-tenth of an inch. Very distinct from the preceding. [Belongs to Litargus Er. — Lec] 4. M. DIDESMUS. — Blackish ; elytra with two bands and obso- lete tip, pale rufous. Body blackish-piceous, with short yellowish-sericeous hairs : head piceous : antennae somewhat clavate : thorax with the pos- terior angles rounded : elytra with a pale rufous, slightly oblique band near the base, and another beyond the middle ; tip obso- letely pale rufous : feet pale. Length much less than one-tenth of an inch. [Also a Litargus. — Lec] [262] LYCTUS Fabr. 1. L. REFLEXtrs. — Chestnut; thorax punctured, slightly nar- rower behind ; elytra striate. Inhabits Pennsylvania. Lyctus americanus ? Melsh. Catal. Head with numerous, large, deep punctures ; a longitudinal rather wide indented line each side, near the eyes : antennae rather robust, shorter than the thorax : thorax with large numer- ous punctures, gradually a little narrowed behind, without any impressed line or elevation ; lateral edge dusky : scutel convex, rounded : elytra with somewhat large striae, in which are large punctures ; terminal edge reflected. Length three-twentieths of an inch. [Belongs to Pycnomerus Er. — Lec] [Vol. V. OF PHILADELPHIA. 323 2. L. GEMINATUS. — Thorax longitudinally indented ; strije of the elytra geminate. Inhabits Pennsylvania. Body depressed, dark reddish-brown, with short, prostrate hairs : head punctured : antennse rather robust, with short hairs : thorax gradually a little narrowed behind, with numerous large punctures ; middle of the disk widely indented longitudinally : scutel convex, rounded : elytra depressed above; impressed striae placed in pairs; interstitial lines punctured. Length three-twentieths of an inch, [This is a species of Bothrideres Er., but very different from B. gcmlnatus Ilald., which was subsequently described as B. exaratas Mels. — Leg.] 3. L. H^MATODES. — Thorax with two indented lines; elytra with large, deep punctured striae. Lyctus Jisematodes ? Fabr. Body dark reddish-brown, a little depressed : head [263] with large, not profound punctures ; an indented longitudinal space each side, between the antennae : antennae short, robust : thorax with large, somewhat deep punctures, and two dilated, parallel, indented lines on the disk : margin a little ele- vated, in the middle contracted ; elytra with dilated profound striae or grooves, in which are dilated, not deeply impressed punctures ; interstitial lines narrow, prominent. Length less than three-twentieths of an inch. This certainly approaches the description of L. Tisematodes Fabr., and probably is the same ; but as he describes that species to be carinated on the thorax, I have made out the above des- cription, that those who have an opportunity, may compare. I obtained may specimens under loose bark of the yellow-pinSj on Chinquoteague Island, in October. The three species above described, correspond with the charac- ters of the genus Bitoma of Herbst, in having the antennae shorter than the head and thorax, and the mandibles not very obviously projecting; yet they appear to me to be very properly retained in the present genus. [A species of Pi/cnomerus. — Lec] 1826.] 324 ACADEMY OF NATURAL SCIENCES COLYDIUM Fabr. 1. C PARALLELOPIPEDCM. — Head with two tubercles ; thorax with two elevations, and an elevated line each side. Colydmm pa7-allelopipeduni Melsh. Catal. Body dull rufous ; glabrous, punctured : head with an indented, transverse line, and two hardly prominent [264] tubercles, often obsolete : thorax quadrate, rather longitudinal ; two tuber- cles before, which gradually dilate and disappear behind j lateral submargin, with an elevated line hardly attaining to the base, and extending on the anterior edge, so as to join the opposite line; exterior edge a little reflected; anterior angles prominent: elytra with hardly impressed, punctured striae, becoming small behind : feet pale rufous. Length less than one-fifth of an inch. This seems to be allied to C. hidcnfatum Fabr., of South America. [Belongs to^ jUdonium Er. — Lec] 2. C. LONGiuscULUM. — Dark brownish; antennae and feet rufous ; thorax punctured. Colydmm longmsculum Melsh. Catal. Body linear, slender, elongated, dark reddish-brown : head blackish, eminently punctured ; nasus dull rufous : antennae bright rufous : thorax cylindric, long, minutely punctured, black- ish : elytra with large, deep strise, in which are transverse punc- tures ; interstitial lines convex : beneath blackish : feet bright rufous. Length one-fifth of an inch. o. C. LINEOLA. — Dark brownish ; antennas and feet rufous ; thorax with an impressed line. Colf/diimi lincola Jlelsh. Catal. Body linear, slender, elongated, dark reddish-brown : head }»lackish, dull rufous before, minutely punctured : antenna) lufous : thorax cylindric, long, minutely punctured, blackish, with a very obvious, longitudinal, acutely impressed line on the ))a«k : elytra [265] with rather large, deep striae, and transverse punctures, which crenate the interstitial lines : beneath rufous. Length less than one-fifth of an inch. [Yol. V. OP PHILADELPHIA. 825 Resembles the preceding, but is smaller, and is readily dis- tinguished by the impressed line of the thorax. LATRIDIUS Herbst. L. PUBESCENS. — Eeddish-brown ; thorax each side irregu- larly denticulated. Inhabits Pennsylvania. Latridius puhescens Melsh. Catal. Body irregularly punctured, with numerous scattered hairs : thorax on the lateral edge having eight or nine irregular denti- eulations : elytra without any series of punctures or Impressed line ; hairs of the lateral margin prominent. Length neraly three-twentieths of an inch. Very diflfereut from the species which I described under the name of L. S-dentatus, which has regular series of punctures on the elytra. [Belongs to Paratenetus, and seems to be P. punctatus Spin., Mon. Cler. 2, 116; tab. 44, fig. 5.— Leg.] SILVANUS Latr. S. DENTATUS. — Thorax 6-toothed each side, and with a double indentation behind. Latridius dentatus Melsh. Catal. Body reddish-brown, depressed, punctured ; punctures small : head with a reflected edge each side, [ 266 ] extending above the eye, and somewhat more prominent over the insertion of the antennae : thorax with two dilated, parallel, longitudinal inden- tations behind the middle, and not reaching the base ; lateral edge with six rounded teeth ; the anterior and posterior one» more acute : elytra with about four slightly elevated lines, sub- sutural one obsolete. Length three-twentieths of an inch. [This is the type of JVausibius, and was previously described under the same specific name by Marsham and Fabricius ; it has been carried by commerce over the entire globe. The genus is still of doubtful position. — Leg.] 1826.] 326 ACADEMY OP NATURAL SCIENCES SYNCHITA Hel. 1. S. 4-GUTTATA. — Blackisli-brown ; thorax canaliculate; elytra eacli with two rufous spots. Inhabits Arkansa and East Florida. Body with short curved hairs : head at tip tinged with rufous : thorax with a longitudinal groove each side on the submargin, continued on the anterior margin ; lateral margin a little concave^ the edge denticulated : elytra with four dilated grooves, containing double series of punctures, and a marginal groove, containing but a single series of transverse punctures ; interstitial lines slender; each elytron with an oblong longitudinal dull rufous spot at base, and another beyond the middle. Length less than three-twentieths of an inch. I obtained three specimens when with Major Long's party in Arkansa, and several occurred in Florida. [Belongs to Ditoma Latr. — Lec] 2. S. GRANULATA. — Thorax granulated; elytra with granu- lated interstitial lines. Inhabits East Florida. [ 267] Body blackish-brown : head granulated, somewhat rufous before : antennae rufous, joints of the capitulum not distinctly separate : thorax covered with granulations ; without grooves ; lateral edge denticulated : elytra with regular series of elevated granulated striae, and intervening, narrower, smooth ones. Length less than three-twentieths of an inch. Very distinct from the preceding. I obtained but a single specimen in Florida, and Mr. Nuttall presented me with three which he brought from Missouri. CUCUJUS Fabr. 1. C. BIGUTTATUS. — Dark reddish-brown ; antennae more than half the length of the body; elytra with a large spot; thorax with a lateral impressed line. CucuJus biguttatus Melsh. Catal. Head with numerous small punctures : thorax with numerous small punctures, not obviously crenate on the lateral edge, with an impressed line on the lateral submargin ; the margins slightly [Vol. V. OF PHILADELPHIA. 327 paler than the disk : scutel pale : elytra with acute impressed striae ; a rather large, oval, pale spot somewhat before the middle, chiefly included between the second and third striae : beneath rufous. Length more than one-tenth of an inch. 'This is a common insect. It is so much like the C. hipustula- tus of Panzer, that we find some hesitation in admitting it to a distinct rank. That species, however, judging from Panzer's figure, has the lateral [268] edges of the thorax obviously crenate, and the pale elytra spot is much larger than in the pre- sent species. [This species belongs to LxmopJdoeus. — Leo.] 2. C. MODESTA. — Reddish-brown ; antennae more than half the length of the body ; thorax with a lateral impressed line j elytra with punctured striae. Head and thorax reddish-brown, with numerous small punc- tures ; the latter somewhat rounded, hardly narrower behind, with an obvious impressed longitudinal line on each lateral sub- margin : antennae considerably more than half the length of the body : elytra rather shorter than the abdomen, pale testaceous, immaculate ; striae obtuse, hardly impressed, with large punc- tures : beneath reddish-brown. Length more than one-twentieth of an inch. This small species occurs in East Florida, and was obtained by Mr. Maclure's party. It is about equal in size to C. testaceus Pabr., of Europe, but is a very different species. In the form of its antennae, this species approaches the genus Brontes. [Also a Lsemophloeus. — Lec] LAMIA Fabr. 1. L. MACULA. — Brownish; sides of the thorax and spot on the elytra gray. Ceramhyx macula Melsh. Catal. Head brownish above, grayish before, and gray on the cheeks : antennae a little longer than the body, dull rufous ; the joints blackish at their tips : thorax slightly inequal, with very obtuse, obsolete tubercles ; lateral spine none, substituted by a hardly elevated tubercle ; above brownish, with two longitudinal, [269] 1826.] 328 ACADEMY OP NATURAL SCIENCES distant blackish lines ; sides beneath the lines gray : elytra punc- tured ; each with six lines of minute black spots, one of which is at the suture, and another on the lateral margin ; a large trian- gular gray spot on the lateral middle, rarely reaching the suture : thighs clavate, black : tibiae dull rufous, annulate with dusky. Length three-tenths of an inch. This species frequently occurs. [Belongs to Lcptostyhis, Lee. Journ. Acad. Nat. Sc. Phila. 2d ser. 2, 168. — Lee] 2. L. GUTTATA. — Elytra with minute elevated points, and about six obsolete gray spots. Lamia Q-yuttata Melsh. Catal. Body brownish : antennae a little longer than the body, obscure rufous J the joints dusky at their tips : thorax a little inequal, with hardly elevated, very obtuse tubercles ; lateral spine none, being substituted by a slightly elevated tubercle : elytra punc- tured, each with six lines of minute black spots, which are each elevated, reflected, and acute ; about six obsolete gray spots on each, of which one is sub-marginal behind the humerus, a minute one is upon the middle, and the third is small, subsutural, and behind the middle : thighs clavate, blackish : tibiae dull rufous, annulate with dusky. Length nearly seven-twentieths of an inch. This species resembles the preceding, but it may be distin- guished by the want of the large gray lateral spot of the elytra, and more essentially by being armed with reflected points on the elytra. It also resembles the L. acuUfcra nobis, but is destitute of the whitish elytral band, and the general form of the body is different from either, being less robust. [A species of Leptosti/lus, which I have failed to identify ; it seems to be most like L. commixtus. — Leg.] [270] 3. L. DASYCERUS. — Antennae hairy beneath; elytra with minute elevated points. Body light brownish-cinereous : antennae a little longer than the body, with rather long, close-set hairs on the inferior side : thorax without obvious tubercles : with two obsolete, longitudi- nal, approximate, brown lines : elytra with a commom arcuated black line, extending from one humerus to the other; numerous, [Vol. V. OF PHILADELPHIA. 329 rather large, irregular punctures ; a few series of distant elevated black points ; an obsolete common white band behind the mid- dle : thighs clavate : tibiae not annulated. Length three-twentieths of an inch. This may be distinguished from either of the before mentioned species ; by the pendant hair of the inferior side of the antennie, &c. The white band is sometimes altogether wanting ; and if very closely examined, the black points of the elytra will be found to consist of fasciculated hairs. [This is the type of Ecyrus Lee, Journ. Ac. Nat. Sc. Phila., 2nd set. 2, 160.— Leg.] 4. L. ALPHA. — Elytra each with a white oblique line extend- ing backwards from the middle of the suture. Ceramhi/x analis ? Melsh. Catal. Body dull reddish-brown : head longitudinally deeply indent- ed on the vertex : antennae considerably longer than the body ; incisures blackish : thorax above, destitute of tubercles, but witk three small black spots, placed 2, 1 ; a short tubercle, abruptly acute at tip, each side before the posterior angles, which are emarginate; posterior margin with a transverse indented line : scutel blackish: elytra irregularly [271] punctured; a few black dots, consisting of tufts of hair, chiefly along the suture j region of the scutel dusky ; a blackish marginal abbreviated line from the humerus ; a blackish line margined with gray, extends from the middle of the suture, obliquely backwards, towards the exterior margin. Length nearly three-tenths of an inch. This species is not very rare in Pennsylvania; I also obtained one in the N. W. Territory. [Belongs to Liopus. — Lec] 5. L. FACETA. — Blackish; elytra yellowish-white, with four blackish bands. Antennae nearly twice as long as the body : thorax equal, with an acute spine each side, near the posterior angles, which are emarginate ; a gray mark behind the middle, in the form of a W : elytra yellowish-white ; a blackish band at base, decurrent behind along the suture ; a narrow oblique band before the middle, not 1826.] 330 ACADEMY OF NATURAL SCIENCES reaching the suture ; a broad band rather behind the middle, and another at tip : feet ochreous. Length three-twentieths of an inch. I have found this pretty little species on the common Juniper, early in July. [Also a Liopus. — Leg.] 6. L. SPINOSA. — Covered with short, prostrate gray hair ; an- tennae gray and black. Saperda sjiinosa Melsh. Catal. Head deeply indented between the antennae : labrum piceous : antennae longer than the body, black, each joint gray at base : thorax cylindrical, immaculate ; an acute, slightly recurved spine near the posterior angles ; elytra with numerous small impressed [272] punctures, at tip truncated : venter with a series of almost concealed black spots on each side. Length more than three-tenths of an inch. The general form is that of a Saperda ; but, agreeably to the generic characters, the spines of the thorax determine the affinity, [I formed a special genus Dectes for this insect, but it seems to be scarcely distinct from Liopus. — Leg.] SAPERDA Fabr. 1. S. ciNGULATA. — Brownish-cinereous, with obsolete fulvous dots ; elytra with a dull cinereous band. Saperda eingidata Melsh. Catal. Body robust, covered with short prostrate hairs : head varied ■with fulvous, a slender fulvous line around the eye, a frontal in- dented line : antennae much longer than the body, bnt not twice as long : thorax obviously broader than long, slightly varied with fulvous: elytra with numerous, obsolete, small fulvous dots; at base and tip broadly reddish-brown ; a broad cinereous, somewhat undulated band on the middle. Length eleven-twentieths of an inch. This is not common. Occurs on the Hickory. [Belongs to Oncideres. — Leg.] 2. S. NIGRA. — Entirely black, immaculate ; elytra irregularly punctured. Saperda nigra Melsh. Catal. [Vol. V. OF PHILADELPHIA. 331 Head indented between the antennae, minutely granulated : an- tennae mucli longer than the body : thorax minutely granulated ; a transverse impressed line on the anterior and posterior margin : elytra very minutely granulated, and with numerous, irregularly placed, rather distant, profound punctures ; tip simple : [273] anterior thighs laterally arcuated, their tibiae perpendicularly arcuated. Length three-tenths of an inch. The anterior thighs and tibise are very obviously arcuated. [A species of Dorcaschema. — Leg.] 3. S. rusciPES. — Hairy, black j thorax with two black vittae j feet rufous. Saperda fuscipes Melsh. Catal. Body with rather long cinereous hair, punctured : head not indented between the antennse : labrum testaceous : thorax as long as broad, irregularly and deeply punctured ; two longitudinal black vittae, occasioned by the complete denudation of the parts : elytra with numerous, close-set, irregularly disposed, deeply im- pressed punctures ; at tip rounded : feet dull rufous. Length two-fifths of an inch. 4. S. 3-LiNEATA. — Densely covered with short prostrate hairs j antennae naked, black. Saperdn cinerca, ) ^^^^^^ ^^^^^ o. 6-uneata, j Body densely clothed, with short, prostrate, greenish-cincereous hairs : head a little tinged with yellowish, with a longitudinal line : antennae quite naked and black : thorax tinged with a little yellowish, breadth hardly exceeding the length ; a longitudinal black line before the middle : elytra immaculate, rather acutely terminated. Length two-fifths of an inch. [Belongs to Hetxnils Hald ; previously described as S- cinerea Oliv. — Leg. 5. S. VESTITA. — Very hairy ; brownish, varied with grayish j antennae as long as the body. [274] Body in every part with numerous long erect hairs, and shorter ones between them j numerous punctures placed irregularly : head 1826.] 332 ACADEMY OF NATURAL SCIENCES not indented : labrum piceous : thorax with a short tubercle on each side : elytra rounded at tip. Length less than than one-fourth of an inch. This species might perhaps be referred to the genus Lamia. [Belongs to Eupogonms Lee, which is allied to, and perhaps the same as CalUa Serv. There is another S. vestita Say, ante 1, 193.— Leg.] 6. S. OBLIQUA. — Elytra with four oblique, elevated lines. Body yellowish-brown, or pale ferruginous : head with an im- pressed line ; a broad fuscous line behind each eye : antennae rather longer than the body, gray, incisures fuscous; first joint rather thick, hairy, fuscous : thorax cylindrical, with four fuscous vittae : elytra with numerous, subinequal, irregularly disposed punctures ; four elevated, obtuse, parallel, oblique lines, commenc- ing at the exterior submargin, and proceeding backward to the suture, the anterior originating on the humerus; tip mucronate. Length three-fifths of an inch. This interesting species was brought by Mr. Thomas Nuttall from Missouri. STENOCORUS Fabr. 1. S. RiftiDUS. — Ferruginous; antennae robust, spinous be- neath. Body rather slender, ferruginous, with very short hairs : head, space between the antennae more elevated ; a longitudinal impress- ed line : mandibles at [275] tip black : antennae very robust, hairy, a little longer than the body; with numerous spines be- neath, particularly on the third or fourth basal joints : thorax rounded, a little narrower before, widest behind the middle : ely- tra very pale ferruginous; without any strife or punctures, instead of which, are very slight depressions, furnishing very short hairs ; on the middle of each elytron is a longitudinal obvious nervure ; tip acutely rounded : thighs, anterior ones more robust than the posterior pairs. Length more than three-fifths of an inch. The spines on the inferior surface of the antennae, are not confined to the tips of the joints, as in some species, but occupy [Vol. V. OF PHILADELPHIA. SS3 the surface from base to tip ; they arc obsolete on the first, second, and terminal joints. The species is rare. [Belongs to Sclcrocerus, and is the male of S. linearis Harris, Trans. Hartford Soc. Nat. Hist. 85.— Leg.] 2. S. QUADRIGEMINATUS. — Pale brown ; elytra each with two geminate spots ; basal ones eqnal. Body entirely pale yellowish-brown : antennae hardly more ob- Tiously hairy on the basal joints than on the others : thorax with two black tubercles above, rather before the middle, placed trans- versely, and a short spine each side on the middle of the length of the thorax : elytra rather paler than the thorax ; each with two double, somewhat elevated bright yellow, abbreviated very short lines ; the two members of the basal spot equal, the othe spot is placed on the middle, and its inner member is shorter than^the exterior one ; tip two-spined, the exterior spine longest . intermediate and posterior thighs two-spined at tip, the inner spine rather longest. [276] Length nine-tenths of an inch. This insect is not uncommon. It is related to S. A-macuIatu^ Fabr., S. macidosus Fabr., >S'. diJ^mus Oliv., all of South America, and >S*. stigma Oliv., of Cuba. It diflFers from the first, to which it is more closely related than to either, by the equality of the two members of the basal double spot of the elytra, and by having only two tubercles on the back of the thorax ; from the maculosus it may be distinguished by its greater size and simple pale color ; from didymus by its smaller size, and not hav- the third and fourth joints of the antennae more hairy than the other joints ; from stigma by having the basal spot of the elytra double. [Belongs to Ebtiria. — Lec] CLYTUS Fabr. 1. C. CONFUSUS. — Black, with spots of yellowish-white ; feet rufous, tarsi and knees black. Head covered with prostrate, short yellowish hair, excepting a longitudinal line on the vertex : antennae two-thirds the length of the body, black : thorax covered with hair, excepting a dilated dorsal vitta, and a naiTow obsolete longitudinal line each side : 1826.] 334 ACADEMY OF NATURAL SCIENCES scutel covered with white hair : elytra with irregular, inequal spots of short yellowish-white hair ; of these spots there is in many specimens, a series at the suture, another on the middle, and a third on the exterior submargin ; but in other specimens the series are obsolete, and in some, many of the spots are con- fluent; [277] tip truncate, emarginate : wings blackish: feet rufous ; knees, tarsi, and tip of the tibia black. Length about seven-twentieths of an inch. I obtained a small individual several years since in this State, and my brother B. Say took a specimen near Pleasant Mills, New Jersey, and I subsequently obtained another in the N. W. Territory. [This is the type of Atimia Hald., but not being recognized by him, was described as A. tristis. — Lec] 2. C. ANNOSUS. — Black, with short gray hairs; a triangular carina between the eyes. Body black, covered with short, gray, prostrate hair : head with a grooved prominence between the eyes, terminating in a short carina : antennae but little longer than the thorax : thorax with a naked dorsal vitta : elytra with the hair more densely arranged in some parts, so as to exhibit the appearance of small spots, which are arranged in two bands, in each of which are two spots each side, the second band is on the middle ; near the tip are one or two common spots ; tip entire. Length nearly one-half of an inch. I received this species from Mr. T. Nuttall, who brought it from Missouri. [Unknown to me. — Lec] CALLIDIUM Fabr. C. CUCUJIFORME. — Pale yellowish ; thorax a little contracted in the middle. Callidium cuctijiforme Melsh. Catal. Body depressed : head with a slight rufous tinge : antennje rather shor.ter than the body, tinged with rufous : thorax [278] longer than broad, obtusely contracted each side, rather before the middle : elytra irregularly punctured, without elevated [Vol. y. OF PHILADELPHIA. 335 lines : thighs dilated : pectus with a large discoidal, very slightly indented space on each side. Length three-tenths of an inch. [Belongs to Smodicum. — Leg.] LEPTURA Linn. Fabr. 1. L. SCALARIS. — Rufous, sericeous; elytra slender, with sericeous triangles along the suture. Body elongated rufous, more or less covered with golden seri- ceous ; impunctured : head with a transverse indentation before, and a longitudinal indented line; space behind the eyes promi- nent : antennae rather more than half the length of the body : thorax with a transverse impressed line before, and another be- hind : elytra slender, concavely arcuated on the outer edge be- hind the middle, rounded at tip, considerably shorter than the abdomen ; a darker rounded spot on the middle, and an oblong one behind the middle, so arranged as to exhibit two sutural golden-sericeous triangles on each elytron : posterior thighs blackish at tip : tergum longitudinally black in the middle : be- neath with brilliant golden sericeous hair. Length one inch. For this fine species I am indebted to my friend. Prince Musignano, who obtained it near his summer residence, at Point Breeze, New Jersey. It is much like the Ceramhyx longipes of Drury, 1, pi. 37, fig. 4, [279] but the thighs are not spinous at tip, as in that species. 2. L. NIGRELLA. — Blackish-brown ; thorax cylindrical. Leptura nigra Melsh. Catal. Body punctured, somewhat pubescent : head with confluent, small punctures; those of the nasus, and labrum sparse : antennas more than two-thirds the length of the body : thorax cylindrical, very slightly wider behind, punctured like the head ; an obtuse, lightly impressed, transverse line on the anterior submargin, and another on the posterior submargin : elytra with very obvious, numerous punctures, which are more particularly confluent near the base ; tip a little truncated obliquely : beneath dull silvery sericeous. Length nearly seven-twentieths of an inch. I received this species from Dr. J. F. Melsheimer, under the 1826.] 336 ACADEMY OF NATURAL SCIENCES name ■whicli I have here given ; that of nigra being preoccu- pied. The thorax approaches the form of that of a Saperda. ■ 3. L. PUBERA. — Black; thorax subglobular; elytra truncate at tip. Lcptura puhera Melsh. Catal. Body punctured, somewhat pubescent : head with dense small punctures : antennae rather more than two-thirds the length of the body : thorax convex, with rather large punctures : elytra with numerous, rather large punctures, at tip transversely a little truncated : beneath dull silvery sericeous. Length three-tenths of an inch. [ 280 ] This is very different from the preceding in the form of the thorax, as well as in color, &c. 4. L. c^RULEA. — Slender ; bluish ; feet pale rufous. Rliagium rufipes Melsh. Catal. Body slender, punctured : head transversely much indented near the nasus : palpi pale rufous : antennae situated on a tuber- cle : thorax with a small tubercle, rather behind the middle on eacn side ; an anterior and posterior, transverse, impressed line : elytra acutely rounded at tip : feet pale rufous ; beneath dull plumbeous. Length rather more than one-half of an inch. A very pretty little insect, belonging to the genus Toxotus of Megerle. The name rufipes, is pre-occupied in this genus. [The type of Encydops Newman, but described by him as E. pjaUipes. — Lec] 5. L. sPHiERicoLLis. — Black ; thorax contracted on the poste- rior margin ; feet varied with yellowish. Body with very short hairs, somewhat sericeous : labium and anterior margin of the nasus yellowish : mandibles and palpi yellowish, at tip piceous : thorax globular in the middle ; ante- rior and posterior margins much contracted : elytra punctured ; the punctures large at base, small towards the tip of the elytra : feet yellowish ; thighs at tip, and tibia at base, blackish. Length nearly one-third of an inch. I received this insect from Mr. Charles Pickering, of Salem, Massachusetts, to whom I returned for it the name of L. pubet-a; but on a strict comparison, I find that by the form of the thorax, [Tol. V. OF PHILADELPHIA. 337 it is quite different from that species, and much more closely re- lated [281] to the L.rnficoUis nobis, from which it differs chiefly in the color of the thorax. ORSODACXA Fabr. 1. 0. TRIPLA. — Rufous ; feet yellowish ; thorax dentate each side. Crioceris asparagi Melsh. Catal. Body rufous, punctured : head coarsely and confluently punc- tured ; before the antennae yellow : antennae with the basal joints yellow at their tips : mandibles black at tip : thorax widest in the middle, with coarse, confluent punctures ; lateral edge with about six unequal denticulations, of which the anterior one is yellowish, and forms the anterior angle : elytra with triple series of rather large impressed punctures, and alternate elevated lines : feet yellow ; tarsi rufous : venter yellow in the middle. Length from one-fifth to one-fourth of an inch. Var. a. Elytra pale ; abdomen yellow. Crioceris Jlavi'da Melsh. Catal. Seems to belong to the genus Auchenia of Megerle ; but I have not seen the characters of that genus. [Belongs to Syneta. — Lec] 2. 0. HEPATICA. — Head black; thorax rufous ; elytra brownish. Head black : palpi and base of the antennae yellowish : thorax yellowish-rufous, larger before the middle, with scattered punc- tures ; anterior angles rounded : elytra liver color, with numerous, irregularly disposed, rather large punctures : beneath piceous : feet yellowish. [282] Length less than a quarter of an inch. This species was brought from the Mississippi region, by Mr. Thomas Nuttall. DONACIA Fabr. 1. D. QUADRicoLLTS. — Brassy green ; thorax with the im- pressed line and lateral tubercle, obsolete. Head dull green bronze ; frontal line very profoundly im- pressed ; no distinct tubercle ; lateral lines very distinct and de- finite : antennae nearly black ; second joint but little shorter than the third : thorax quadrate, very slightly narrower at base ; 1826.] 22 338 ACADEMY OF NATURAL SCIENCES densely and confluently punctured ; the longitudinal line, as well as the lateral tubercles, indistinct ; color brassy-green : elytra a little inequal near the suture ; slightly truncated, and not de- curved at tip : with regular distinct striae of punctures : beneath dusky silvery gray : feet dull rufous ; posterior thighs with a small tooth ; all the thighs a little dusky above. Length less than two-fifths of an inch. This species is nearly equal in size to \h& pahiata Oliv., which is the D. anea of Melsh. Catal. ; but that common insect has the dorsal thoracic line and lateral tubercles well defined, the third joint of the antennae nearly double the length of the second, and the tips of the elytra more profoundly emarginated ; the thorax is moreover transverse. I may observe, with respect to the palmata, that the male only has the anterior tarsi dilated. [Previously described as D. suhtilis Kunze. — Leg.] [283] 2. D. METALLiCA. — Cupreous ; antennae and feet rufous; se- cond and third joints of the former equal. Donacia metallica Melsh. Catal. Body above cupreous, polished : head densely punctured, nearly opaque, with an acute impressed line transversely in- dented in the middle ; tubercles and lateral lines none : antennae pale rufous ; rather short ; less than half the length of the body ; with short joints, the second and third equal, the fourth nearly equal : thorax convex, gradually a little narrowed to the base, decidedly longer than broad, very highly polished, with very dis- tinct scattered punctures, an impressed, acute line ; lateral tu- bercle obtuse, obvious ; small tubercle of the anterior angle dis- tinct from the large tubercle, subacute ; posterior submargin in- dented : elytra, striae with impressed punctures ; a single obso- lete indentation passes from the humerus to the suture before the middle ; tip much decurved, rounded : beneath greenish sil- very : feet pale rufous : posterior thighs with a broad prominent angle. Length about three-tenths of an inch. Var. a. Antennas and feet dusky. Var. b. Green ; antennae and feet obscure rufous. The thorax is more convex and polished than in most other species. I have received a specimen from Dr. T. W. Harris, of Milton, Massachusetts. [Vol. V. OF PHILADELPHIA. [This is D. sulclcoUis Lac, which name must*be adopted, as there is a D. mctallica previously described by Ahrens. — Lec.J 3. D. RUFA. — Dull metallic rufous; front destitute of lateral impressed lines. Body totally dull rufous, with a metallic gloss, particularly on the elytra : head dusky, almost opaque, with much crowded, very small punctures; no appearance [284] of tubercles; a very dis- tinct, impressed frontal line extending down between the an- tennae ; no appearance of impressed lines near the eyes : antennaD somewhat paler than the body, and about half the length of the body; third joint distinctly longer than the second: thorax longer than broad, minutely punctured ; longitudinal line very distinct, deeply impressed ; a transverse impressed line on the posterior submargin ; lateral tubercles rather prominent, obtuse ; tubercle of the anterior angle distinct from the large tubercle, acute : elytra hardly obviously inequal near the suture ; with striae of punctures; tip decurved, almost truncated, or obtusely rounded : beneath, in a particular light, dull silvery sericeous : feet rufous. Length more than three tenths of an inch. I found this species in company with palmafa, on the bank of the Schuylkill river. [Continuation from Vol. 5, 1826, pp. 293—304.] 4. D. pusiLLA. — Green ; elytra brassy ; tibias and tarsi rufous; second and third joints of the antennae equal. Head brassy-green, very densely and confluently punctured ; a well impressed frontal line; lateral lines none ; no appearance of frontal tubercles : antennae short, much less than half the lenffth of the body ; second and third joints equal, fourth joint hardly longer ; joints dull rufous, blackish at tip : thorax green, a little tinged with brassy, longer than broad, as densely punctured as the head ; middle of the anterior edge a little elevated : longi- tudinal line none ; lateral tubercles obvious : elytra brassy-green, a little tinged with cupreous ; with striae of punctures ; three lon- 1826.] 340 ACADEMY OF NATURAL SCIENCES gitudinal indentations near the suture, of wliicli the anterior one is widest and deepest, with a slight impressed line extending obliquely to the base ; tip decuryed and rounded : beneath green, tinged with brassy : feet rufous : thighs at tip brassy-green, pos- terior pair with a prominent angle beneath. Length rather more than a quarter of an inch. The smallest species I hare seen ; it occurs in the Middle States, and I have also received a specimen from Dr. T. W. Har- ris, of Milton, Massachusetts. 5. D. coNFLUENTA [coNFLUENS.] — Brassy, tinged with cu- preous ; head with two tubercles ; second joint of the antennae shortest ; elytra truncate at tip. [294] Head rather obscure; a profound frontal line, on each side of which is an oblong tubercle; punctures confluent, small : an- tennae not quite half the length of the body, fuscous, first joint metallic, polished, third joint distinctly longer than the second : thorax nearly square, a little narrowed to the base, with very dis- tinct confluent punctures, and a slightly impressed dorsal line j lateral tubercles not prominent; anterior tubercles not distinct: Bcutel cinereous : elytra with punctured striae ; two subsutural impressed spaces, of which the exterior extends obliquely to the middle of the base ; tip hardly decurved, truncated : posterior thighs with a small angle beneath. Length less than three-tenths of an inch, I have found this insect in Pennsylvania, and also in Missouri, In some specimens, lateral impressed spaces of the elytra are very distinct, but in general they are not perceptible, LEMA Fabr. L. MELANOCEPHALA. — Above rufo-testaceous ; head and all beneath black. Head deep black, inequal; thorax rufo-testaceous, polished, abruptly very much contracted on the middle of each side, pre- senting the appearance of a profound vertical groove in that part: elytra rufo-testaceous, polished, with almost regular series of im- pressed punctures : beneath black, immaculate. Length nearly three-tenths of an inch. Eesembles the trilineata Oliv., in form, but it is [ 295 ] readi- [Vol. V. OP PHILADELPHIA. 341 ly distinguished from that well marked insect. It inhabits the N. W. Territory, where it was found by Major Long's party. I also received specimens from Dr. T. W. Harris. [Unknown to me. — Leg.] CASSIDA Fabr. C. BiviTTATA. — Yellowish ; elytra with two lines and suture black. Cassida hivittata Melsh. Catal. Body sub-orbicular, yellowish, tinged with rufous ; margin all round paler : elytra with regular striae of impressed punctures, those on the margin much larger and blackish; two black vittae on the middle, of which the exterior one is a little undulated, and the inner one rather shorter ; suture black ; beneath piceous Length one-fifth of an inch. EUMOLPUS Fabr. 1. E. PINT. — Brassy, with short whitish hair; antennae obscure rufous. Body rather dark brassy polished, punctured, with short whitish hair : head with an impressed longitudinal line on the front : antennae and palpi dull rufous : thorax, as well as the head, slightly tinged with cupreous : scutel cupreous : elytra destitute of striae or lines : beneath reddish-brassy, more densely covered with the whitish hair than the superior surface : feet not so thickly hairy, dark rufous. Length seven-twentieths of an inch. I received this insect from Dr. J. F. Melsheimer, [ 296 ] under the name which I have adopted ; he informed me that its favor- ite food is the different species of Pinus. [Belongs to Glyptoscelis Lee. Proc. Acad. Nat. Sci., Phila.^ 1859, 81, and was previously described as Eu. hirtus Oliv. — Leg.] 2. E. BARBATUS. — Brassy, with short ferruginous hair; an- tennae obscure rufous. Euniolpus harhatus Melsh. Catal. Body dark brassy ; tinged, particularly on the head and tho- rax, with cupreous ; somewhat polished ; punctured, and covered with short, ferruginous hair : head with a longitudinal, darker, 1826.] 342 ACADEMY OF NATURAL SCIENCES slightly impressed line : antennae and palpi dull rufous : elytra destitute of striae or lines : beneath reddish-brassy, covered with whitish hair : feet very dark rufous. Length nearly three-tenths of an inch. Resembles the preceding, but is always smaller, and it may be at once distinguished from it by the color of the hair, which on the superior surface is decidedly ferruginous. CHRYSOMELA Linn. Latr. 1, C. c^RULEiPENNis. — Blue polished ; thorax and feet ru- fous ; antennae and tarsi black. Head punctured, blue-black : antennce black, basal joint ru- fous beneath and at tip : thorax bright rufous, with numerous punctures ; an obsolete transverse dusky line on the anterior sub- margin, and another on the posterior submargin : scutel blue : elytra polished blue, numerously punctured, the punctures irre- gularly situated, sometimes confluent : beneath blackish-blue : feet pale rufous : tarsi black : anus rufous. [297] Length more than three-twentieths of an inch. A beautiful and rare species, an inhabitant ofthe North West Territory. I received a specimen from Mr. John P. Brace of Litchfield, and another from Dr. T. W. Harris. This is the very abundant C. polr/goni, which is probably in- troduced from Europe. — Lec] 2. C. spir^a[e]. — Green; elytra pale yellow, with green spots, a common and sutural line trifid at base. Head dark green, tinged with brassy : antennae and palpi ru- fous : thorax dark green, tinged with brassy : elytra pale yellow, sometimes tinged with rufous : each with about seventeen un- equal small green spots ; a larger lunate one originating on the humerus ; a common green sutural line, which sends off a lateral short branch on each side near the base : beneath blackish-green : feet rufous. Length a quarter of an inch. I received several specimens from Dr. Jno. F. Melsheimer, under the name which I have adopted. He informed me that he found them on the Spiraea opulifolia Muhl. Catal. I have also found them near Philadelphia, and in Missouri. It is very [Vol. V. OF PHILADELPHIA. 343 closely allied to the C. philadelphica Fabr., but is smaller, and the sutural line is always common ; whereas in the pMladelpMca there is a slender subsutural line on each elytron always insu- lated from the suture throusihout its whole length. It has also a general similarity to the multijyinictata nobis, but that species is larger and more oblong, the elytral spots more numerous, and arranged in a different manner, and the head and thorax are of a different color. [ 298 ] HELODES Fabr. H. TRiviTTATA. — Blue-black ; margin of the thorax and two elytral vittae yellow. Body punctured : head entirely blue-black, with an impressed frontal line divaricated before : thorax with somewhat sparse punctures ; lateral margins yellow, this color being contracted in the middle on the inner side : elytra with punctured stirse : su- tural margin yellow ; vitta on the middle not reaching the tip, and exterior edge blue-black : feet immaculate : venter with the caudal segment margined behind with dull yellowish. Length more than one-fifth of an inch. This insect was sent me by Mr. Charles Pickering, of Salem. It is so closely allied to the H. phellandrii Linn., in size, form, description, and disposition of colors, that I have hesitated to consider it as distinct. The chief difference which I have been able to discover, consists in the circumstance, that the feet in the phellandrii are partly yellow, whilst those of the present species are perfectly immaculate. Still it is highly possible that it may prove to be a variety of that well known insect. [This is a Chrysomela of the division Prasocuris. — Lec] GALLERUCA Fabr. 1. Gr. RUFOSANGUINEA. — Entirely rufo-sanguineou3, punc- tured. Head punctured, with an impressed frontal line passing down between the antennae, and more dilated [ 299 ] above ; an in- dentation each side near the eyes ; antennae black, dull rufous at base : eyes deep black : thorax with rather large numerous punc- tures, a large, indented spot each side, and a dilated longitudi- 1826.] 344 ACADEMY OF NATURAL SCIENCES tudinal line in the middle ; posterior angles subacute : scutel at tip very obtusely rounded, or somewhat truncate : elytra with very numerous, profoundly impressed, rather large, irregularly disposed punctures : wings blackish : beneath hardly paler in color than the superior surface. Length rather more than one-fifth of an inch. Not uncommon in some situations in the middle States. I have also received it from Dr. T. W. Harris. [Belongs to Adimonia. — Lec] 2. G. meraca. — Greenish-black ; antennae and feet yellow- ish. Body black, slightly tinged with green : head with a few scat- tered punctures, a longitudinal impressed line, and above the an- tennas a transverse one : antennae yellowish : labrum and mouth yellowish : thorax destitute of distinct punctures ; lateral edge a little excurved at the posterior angles, which are acute : elytra with obsolete irregular punctures : beneath black-blue : venter a little tinged with cupreous : feet yellowish : thighs at base black- ish: coxse yellowish. Length more than three-twentieths of an inch. [A species of Iniperus. — Leg.] ATTICA Fabr. A. suturella. — Testaceous; thorax with black spots; elytra with a black sutural edge. Body punctured, testaceous : head tinged with fulvous ; [300] an impressed frontal line, and two impunctured spots ; punctures numerous, dense ; antennae black, first joint beneath dull rufous : thorax tinged with fulvous, with fuscous spots or characters on the disk ; punctures numerous : scutel black : elytra testaceous, tinged with fulvous on the exterior margin ; punctures numer- ous, crowded ; raised line of the suture black, forming a common sutural line, which does not quite reach the apex : pectus testa- ceous, tinged with pale fulvous : postpectus black : feet black : posterior thighs dull rufous beneath : venter dull rufous. Length one-fourth of an inch. Very distinct from any other species I have seen. [Vol. V. OP PHILADELPHIA. 345 TRITOMA Fabr. 1. T. UNICOLOR. — Black; elytra striate; tarsi piceous. Tritoma unicolor Melsh. Catal. Body black, polisbed, minutely punctured : palpi yellowish : antennae ferruginous, the club blackish : thorax with the punc- tures scattered on the disk, dense each side : elytra with regular series of impressed punctures, obsolete towards the tip : tibiae all dilated and angular near the tip : tarsi pale piceous. Length nearly one-fifth of an inch. 2. T. ANQULATUM. — Black; beneath piceous; feet yellow- ish. piceuyn, j Body black, polished, punctures obsolete ; head piceous : palpi ferruginous : antennae ferruginous, the [301] club blackish : ely- tra with regular series of impressed punctures : beneath pice- ovs : feet yellowish : tibije dilated and angular near the tip. Length nearly three-twentieths of an inch. Resembles the preceding, but diflFers from it both in size and coloring. 3. T. PULCHRUM. — Black; elytra rufous on the basal half. Tritoma pukhrum Melsh. Catal. Body black, punctured, polished : antennas ferruginous ; club dark piceous : palpi yellowish : elytra rufous at base, deep black at tip, the line of division extending from behind the sutural middle, in an oblique direction rectilinearly towards the humeral angle, behind which it turns abruptly outward to the exterior edge ; striae of punctures regular : tibiae hardly dilated at tip : tarsi ferruginous. Length three-twentieths of an inch, nearly. The Triplax sanguinipennis and higuttata of vol. 4. p. 89, may, perhaps, with greater propriety be referred to the present genus. [This is T. cinctum Lac. subsequently described. — Leg.] 1826.] 346 ACADEMr OF NATURAL SCIENCES COCCINELLA Linn. 1. C. PULLATA. — Pale testaceous; elytra witt a yellow lateral margin, in which is a black spot. Head yellow : antennae blackish at tip : labrum piceous at base : thorax with a pale testaceous disk ; a narrow yellow an- terior margin ; a dilated, oval, yellow lateral margin, separated from the color of the disk by a black line, and including an in- sulated [302] black spot : elytra pale testaceous, with a dull yellowish lateral margin : beneath blackish. Length from more than one-fourth of an inch to three-tenths. I found an individual several years since, cast up by the waves on the eastern coast of Virginia, and I obtained another when in Florida with Mr. Maclure. [Belongs to Myzia Muls. as reformed by me ; C. notans Ran- dall, is a variety of it. — Leg.] 2. C BINOTATA. — Black ; lateral margin of the thorax and head yellow ; each elytron with a rufous spot. Coccinella hinotata Melsh. Catal. Body rounded-oval, convex, punctured, black, polished : head pale yellow : labrum and transverse line on the vertex piceous : thorax with a yellow lateral margin extending for a short dis- tance on the anterior margin ; anterior margin with an obsolete yellowish line interrupted in the middle : elytron each with a rufous, orbicular, central spot. Length less than three-twentieths of an inch. This species agrees with the Fabrician description of the C. ocidata, but it is a widely different species. 3. C. NORMATA. — Black ] elytron each with a rufous spot. C. bipustulata Melsh. Catal. Body rounded-oval, convex, black, polished, punctured : head and thorax immaculate : elytron each with a cental, orbicular, rufous spot. Length less than three-twentieths of an inch. This is very similar to the preceding species, but it is alto- gether destitute of any spot on the head and thorax. It is quite different in form from the C. hipustulata, Fabr. [Belongs to Hyperaspis. — Lec] [303] [Vol. V. OF PHILADELPHIA. 347 4. C. PROBA. — Black ; a lateral spot ou the thorax, and three on each elytron, yellowish. Body rounded-oval, black, punctured, convex : head immacu- late : antennae honey yellow : thorax with a large, oval, pale yellow spot on each lateral margin ; elytron each with a rather large, yellowish, orbicular spot somewhat before the middle, two smaller orbicular yellow spots placed transversely beyond the middle, and nearer the exterior and sutural edges than to each other. Length nearly one-tenth of an inch. [Also a Jlt/j^eraspis. — Lec] EUMORPHUS Fabr. 1. E. DISTINCTUS. — Rufous; elytra with a common vitta, and another on the exterior margin, black. Endomyclius distinctus Melsh. Catal. Body bright rufo-sanguineous : antennae dark piceous, terminal joint paler : thorax with an impressed line on the lateral sub- margin ; disk somewhat darker than the lateral margin : elytra with a rather broad, common, black vitta, commencing at the scutel, becoming a little narrower towards the tip, and abbreviated before the tip of the suture ; an elongated black spot on the middle of the lateral submargin, and occupying more than one- half of its length : beneath immaculate. Length less than a quarter of an inch. A fine species, 'by no means common. [Belongs to Mycetina Muls., and was previously described as Lycoperdina vittata Germ., or rather Tritoma vittata and Cataps vittahis Fabr. ; also as Endomyclius lineatus Oliv. — Leg.] 2 E. ANGULATUS. — Dark rufous, margin and feet paler. Endomychiis limhatus Melsh. Catal. [304] Body dark rufous or piceous : thorax a little convex; an im- pressed line on the lateral submargin ; lateral margin paler than the disk: elytra. a little convex, with a paler exterior margin, sometimes obsoletely so on its middle, the paleness being then confined to the humerus and tip : feet pale rufous : anterior tibias with a prominent angle on the inner middle. Length rather more than one-fifth of an inch. 1826.] 848 ACADEMY OF NATURAL SCIENCES Smaller and somewhat more convex than the preceding spe- cies. It is altogether diflFerent from the Umhatus Oliv., of Cayenne. [Belongs to Lycoperdina and was previously described as L. ferruginea Lee, Ann. Lye. Nat. Hist. New York, 1, 172. — Leg.] LYCOPERDINA Latr. L. VESTTTA. — Yellowish, hairy; disk of the elytra blackish. Body oval, covered with rather short hairs ; yellowish : an- tennae, the six terminal joints piceous : thorax with the disk somewhat darker ; lateral margin with an impressed line ; lateral submargin with an abbreviated impressed line at base : elytra dark piceous ; basal sutural and exterior margins yellowish : be- neath immaculate. Length more than three-twentieths of an inch. I have found this species on the Oak in June. [Belongs to Stenotarsus Perty, and was previously described as Erotylus hispidus Herbst, and subsequently as Ephehus limba- tm Guerin, Archiv. Entom. 1, 270. — Leg.] [From vol. 6, 1829 : pp. 149—178.] Descriptions of North American DIPTEROUS INSECTS. CULEX Linn. Meig. C. Musicus. — Tergum purplish, with lateral yellowish spots. Inhabits Indiana. Head dull honey-yellow : vortex blackish with yellowish hair : proboscis and palpi black : thorax black-purple, with yellowish hair or scales : wings dusky : poisers white, a little dusky at tip : tergum purple, or violaceous, with a band at base, and large lateral spot on each segment of yellowish hair or scales : feet black-violaceous ; thighs, excepting at tip, and coxas whitish, sericeous : tarsi, two terminal joints of the posterior pair white. Length more than one-fifth of an inch. [Vol. VI OP PHILADELPHIA. 349 CHIRONOMUS. C. T^NIONOTUS. — Stethidium green, trilineate; a black line on the middle of the anterior line. Inhabits Indiana. Body bright pea-green : head yellowish, terminal joint of the antennfe blackish : thorax with three dilated, pale honey-yellow vittae ; a black line along the middle of the anterior one : wings white : metathorax pale honey-yellow, with a blackish spot in the middle, divided by a green line : tergum [150] immaculate; pectus pale honey-yellow : feet pale greenish, anterior tibiae and tarsal incisures dusky. Length more than one-fifth of an inch 9 . C DEViNCTUS. — Tergum black, incisures white ; feet with black incisures. Inhabits Indiana. Body dusky : stethidium dusky livid : thorax trilineate with blackish : scutel dull honey-yellow : halteres and wings white : tergum brownish-black ; incisures, particularly those near the base, white : thighs black, anterior pale at base ; the others with a white annulus near the tip : tibiae and tarsi white, with black incisures. Length nearly one-fifth of an inch. CERATOPOGON Meig. C SCUTELLATUS. — Black; scutel yellow; abdomen whitish. Inhabits Indiana. Head blackish : mouth yellow : thorax pale yellowish, with three black lines, which are widely dilated before, and confluent: scutel yellow : wings dusky : poisers white : abdomen whitish : feet whitish. Length nearly one-twentieth of an inch. Appeared in considerable numbers on the last of August, soon after sunrise. LIMNOBIA Meig. L. LiviDA. — Tergum livid, with a yellowish margin. Inhabits Mexico. [151] Head yellowish -brown, with a longitudinal fuscous line : antennae 1829.] 350 ACADEMY OF NATURAL SCIENCES fuscous, paler at base : joints rounded: tliorax yellowish-brown, trilineate with blackish, exterior lines dilated, middle line capil- lary : metathorax with a gray reflection, yellow each side : poiserg elongated, reaching the tip of the second abdominal segment, yellow, with a lateral dusky line : wings with a slight yellowish- brown tint, cross nervures margined with dusky : tergum livid, with a darker dorsal, and submarginal line, and yellowish margin : pleura bilineate with fuscous ; superior line passing round the pectus before the anterior feet, and the inferior line behind them : feet yellowish, with an obsolete dusky band towards the tip of the thighs : venter livid, with a yellowish margin and obsolete middle line. Length more than one-fourth of an inch. The nervures are arranged nearly as in L. Ititea Meig. TIPULA. T. ANNULicoRNis. — Pale ; antennaj annulate with black. Inhabits Indiana. Body very pale honey-yellow : antennae with a black annulus on each joint : palpi black at tip : wings immaculate : tergum with obsolete, dusky, slightly undulated bands. Length under one-fourth of an inch. [152] PLATYURA. P. suBTERMiNAiiis. — Yellowish ; wings with a subterminal band. Inhabits Indiana. Body entirely pale honey yellow : antennae, excepting the two basal joints, fuscous: ocelli with a small black areola : thorax immaculate : wings with a slight yellowish tinge ; a blackish sub- terminal band, occupying on the costal margin all the space between the small cross nervure and the tip of the next long nervure, and extending to the thinner margin : tergum a little more dusky than the thorax ; tibiae and tarsi dusky. Length three-twentieths of an inch. Nervures as in P. Baumhaueri Meig., but the small cross ner- vure on the costal margin is perpendicular to the costal edge. [Vol. VI- OF PHILADELPHIA. 351 LEIA Meig, L. BiviTTATA. — Honey -yellow ; trunk bilineate, and terguni with two series of black punctures. Inhabits Indiana. Body rather pale honey-yellow : antennae black at tip : stem- mata very distinct, in a curved line : thorax a little hairy, on each side a dilated black vitta : wings fasciate near the tip : tergura on each side with a series of oval black spots : coxae white. Length over three-twentieths of an inch. Taken on the window in June. [153] MYCETOPHILA Meig. M. discoit)[e]a. — Thorax pale with a blackish disk ; wings with a fuscous spot. Inhabits Indiana. Head blackish: antennae whitish, at tip blackish: thorax pale honey-yellow ; disk blackish owing to three vittae of that color being confluent into one : wings hyaline, with a fuscous spot on the connecting nervures : tergum blackish, somewhat sericeous : poisers whitish : feet whitish, with blackish tarsi : abdomen whit- ish at base. Length more than one-tenth of an inch. Belongs to Meigen's first division of the genus. M. NUBILA. — Dusky; wings immaculate; feet whitish. Inhabits Indiana. Body dusky, brownish : antennae first and second joints yel- lowish : thorax on the humerus dull honey-yellow : scutel dull yellowish : wings hyaline, immaculate : poisers whitish, capituluni dusky before the tip : abdomen slender, gradually enlarging to the tip : tergum with the tips of the segments pale ; anal seg- ment pale : feet whitish, dusky towards the tips ; spines one-third the length of the first tarsal joint. Length three-twentieths of an inch. Belongs to Meigen's fifth division. SCIARA Meig. L. UNicoLOK. — Velvet black ; wings with a slight violaceous tinge. [154] Inhabits Mexico. 1829.] 352 ACADEMY OP NATURAL SCIENCES Body velvet black, with numerous short hairs : thorax with a minute humeral, obsolete piceous spot, and another at base of the wings : scutel with an obsolete piceous spot on each side ; wings large, black, with a violaceous tinge ; the apical furcate nervure, as well as all the other nervures, equally definite. Length nearly three-tenths of an inch. S. EXiLis. — Halteres nearly half the length of the abdomen. Inhabits Indiana. Body dusky : antennae as long as the body : stethidium yellow- ish-white : thorax blackish : wings dusky ; apical forked nervure wide, the inferior portion hardly arquated : halters subclavate, about half as long as the abdomen, a little dusky: abdomen a little hairy : feet pale. Length % one-thirtieth of an inch. PENTHETEIA Meig. P. HEROS. — Black; costal margin of the wings fuscous. Inhabits Mexico. Body entirely velvet black : wings dusky ; costal margin fus- cous ; costal edge black ; nervures of the disk-pale. Length 9 two-fifths of an inch. This I believe to be the largest species, yet discovered, of this small genus. The arrangement of [155] the nervures diflPer considerably from that of P. holosericea Latr., as represented by Meigen. The male is much smaller and nearly corresponds in the arrangement of its nervures. DILOPHUS Meig. D. STYGius. — Velvet black, immaculate. Inhabits Mexico. Body velvet black : thorax with a transverse series of approxi- mate spines on the collar, interrupted in the middle, and a series of smaller ones before the middle of the thorax : wings blackish a little tinged with violaceous : anterior tibia with a series of acute spines on the anterior middle and tip. Length one-fourth of an inch. [Vol. VI. OP PHILADELPHIA. 353 BERIS. B. FUSCiTARSis nob. — When describing this species I observed that " The scutel of my specimen is wanting, I cannot therefore ascertain its number of spines." I have since obtained individu- als in Indiana, and find that the scutel is altogether destitute of spines or radii. It differs in this respect from all the known species. XYLOPHAGUS Meig. X. FASCIATUS. — Wings dusky, fasciated ; abdomen fasciated. Inhabits Indiana. Body dusky : thorax posterior portion honey-yellow : [156] poisers blackish at tip: wings dusky, a more distinct band on the middle and at tip : feet honey-yellow ; hind tibiae blackish : tergum yellow, basal half of the four basal segments black ; remaining segments nearly all black. Length over t^o-fifths of an inch. By an accident the head and anterior part of the thorax of this fine specimen were destroyed, but the above description will sufficiently indicate the species. The wing nervures resemble those of the maculatus Fabr. THEREVA Latr. T. ALBIFRONS. — Black, with gray hair : thorax with a black- ish vitta. Inhabits Indiana. Body black, with numerous gray hairs : front silvery : an- tennas ■ — : rostrum dirty honey-yellow : thorax with a broad fuscous vitta : wings hyaline : poisers black at tip : tergum with the segments tipped with a more dense margin of gray hairs, wider and more obvious on the sides : venter, the two middle segments with a pale terminal margin : feet blackish ; tibia dirty honey-yellow. Length S three-tenths of an inch. ^esemhles frontalis nob., but is much smaller. ANTHRAX. A. EDiTiTiA. — Black, with fulvous hair : wings fuscous at base. [157] Inhabits '. 1829.] 23 354 ACADEMY OF NATURAL SCIENCES Body blacky covered with dense fulvous hair : cheeks naked : proboscis rather prominent, black : antennae, two basal joints yellowish : wings hyaline, basal half fuscous, including all the costal cellule and the middle transverse nervures which are darker than the other part ; two exterior transverse nervures margined with blackish : halteres reddish-brown, tip yellow : tergum each side and at tip yellowish : venter, except on the two or three basal segments yellowish : feet fulvous ; tarsi blackish. Length over two-fifths of an inch. Belongs to Wiedemann's fifth tribe. A. LiMATULUS. — Wings fuscous at base and with three fuscous points. Inhabits Indiana. Body brownish-black : occiput plumbeous, near the neck black, with a black indented line passing up to the vertex : wings dusky, fuscous at base, chiefly on the cOstal portion of it, which extends attenuating beyond the middle ; anastomosis, in the hyaline portion, margined with fuscous : tergum with four series of silvery points, or rather abbreviated transverse lines. Length % three-tenths of an inch. Length 9 two-fifths of an inch. [158] Var. a. Posterior cross nervure of the central wing cellule not margined. Belongs to Wiedemann's second tribe. DASYPOGON Meig. D. CEPPHicus. — Black, with short cinereous hair. Inhabits Mexico. Hypostoma, mystax, and gense silvery : antennae black, first joint of the style longer than the second : vertex concave, but not very profound : stemmata on a common elevation : thorax with a slight appearance of lineations before : poisers yellow at tip : nervures black : tergum with the segments having short white hair each side : metathorax also somewhat silvery each side : anterior coxae with a slender, arquated, transverse, black common line, and a longitudinal black line of separation : ante- rior tibiae with silvery hair. Length one-fourth of an inch. [Vol. VI. OP PHILADELPHIA. 355 The nervures of the wings are arranged more like those of an Asihis than of a Das^/pogon, but the bi-articulate style proves the generic aflGinity. LAPHRIA. L. SANIOSA. — Black ; abdomen sanguineous. Inhabits Indiana. Body blued-black : head black ; front with a silvery reflection : posterior and inferior orbits reflecting [159] silvery : wings black violet : abdomen sanguineous, first segment of the tergum blackish. Length nearly half an inch. RAMPHOMYIA Meig. R. RUFIROSTRA. — Black; thorax lineate. Inhabits Indiana. Body hairy, black : proboscis honey-yellow, black at base : thorax blackish-cinereous, opake, with three polished, black, equal lines obsolete behind, and two less obvious ones on each side, connected to the exterior of the dorsal ones in a humeral spot : wings with a yellowish tinge towards the base, and a large fuscous carpal spot; middle cellule very short, but little longer than broad : poisers honey-yellow, with a fuscous capitulum : tergum polished : feet very hairy, polished ; anterior tarsi, first joint as long as the tibia and rather more dilated. Length 9 three-twentieths of an inch. SARGUS. S. TRiviTTATUS. — Green ; thorax [with] dull darker lines : tergum fasciate. Inhabits Indiana. Body grass green, not metallic, nor brilliantly polished : an- tennae terminal joint rounded, yellow; seta black: stemmata equidistant, in a fuscous areola : thorax trilineate with dull red- dish-brown : poisers blackish at tip : tergum, segments, except- ing the [160] basal one, with a broad dusky band at their bases : feet dull yellowish, darker at their tips. Length from two-fifths to half an inch. A large species, destitute of the highly polished metallic color 1829.] 356 ACADEMY OF NATURAL SCIENCES SO striking in many species. The thoracic lines are so dilated as to o-ive the thorax the appearance of being entirely dull reddish- brown. NEMOLETUS Meig. N. POLYPOSUS. — Black ; feet yellowish ; thighs black at base. Inhabits Mexico. Body black, with a slight tinge of purplish, polished : wings white, costal and basal nervures yellowish : poisers white : feet honey-yellow; thighs, except at tip, black j tarsi, terminal joint black 3 posterior tibiae black in the middle : venter immaculate. Length more than three-twentieths of an inch. This is closely allied to the species which I described under the name of palUpes. STRATIOMYS. S. TRiviTTATA. — Greenish; thorax with three, tergum with one black vitta. Inhabits Mexico. Head yellowish-green ; front and vertex brownish, each with a transverse, somewhat undulated line: antennse reddish-brown, paler at base : thorax green, with three broad black vittae : scutel greenish, two-spined, [161] immaculate : poisers pea-green : tergum yellowish-green, with a dilated, crenate vitta : pectus with a broad black vitta : proboscis and point each side on the hypostoma, black. Length nearly seven-twentieths of an inch, S. GONIPHORA. — Black ; thorax with minute golden hairs : be- neath greenish. Inhabits Mexico. Head yellowish-white, two undulated black frontal bands : vertex black, yellowish behind : hypostoma with a lateral black dot, sometimes obsolete : proboscis black : antennas black : occi- put black : thorax with numerous small golden hairs ; a yellow- ish line over the wings : scutel black, posterior margin and spines yellow : wings hyaline ; costal nervures and cellule yellowish ; middle nervures blackish : tergum black, with lateral yellow triangles and tip ; beneath pale greenish : pectus on the disk [Vol. VI. OF PHILADELPHIA. 357 black : feet yellowish, a line beneath the thighs black : venter on the posterior disk ferruginous. Length more than three-tenths of an inch. BACCHA. B. COSTATA. — Body black ; tergum with white bands. Inhabits Indiana. Head silvery ; a shining black line from the vertex to the mouth, much constricted on the middle of [162] the front: an- tennae obsoletely honey-yellow at base : occiput plumbeous with a silvery reflection : thorax black : poisers white : wings hyaline with a somewhat narrow costal margin, not reaching the tip : scutel margined with yellow : tergum black ; first, second, and third segments with an oblique white spot on each side at base, and remaining segments tipped with white ; feet black ; anterior pairs, base of the tibia and tip of the thighs honey-yellow ; pos- terior tibia honey-yellow at base. Length half an inch. XYLOTA Meig. X. ARQUATA. — Blackish ; tergum fulvous with white arcs. Inhabits Mexico. Body blackish : head above with greenish hair, below the an- tennae with whitish hair : vertex blackish ; tubercle of the an- tennae black : antennae black-fuscous : hypostoma with a naked black vitta before, and another on each side, from the anterior can thus of the eye to the tip : thorax with short hair; with three slender lines on the disk : scutel yellowish at tip : wings hyaline : tergum fulvous ; first segment black ; remaining segments, ex- cepting the terminal one, with a blackish middle and whitish transverse arquated line each side : feet, knees and posterior tibiae honey-yellow : venter yellowish, more dusky at tip. [163] Length seven-twentieths of an inch. Var. a. Tergum black, with transverse arquated lines : poste- rior margins of the segments yellow. MILESIA Fabr. Meig. M. BARDA. — With yellow hair ; tergum black, yellow at base. Inhabits Indiana. Body black : hypostoma with silvery hair and longitudinal, 1829.] S'SS ACADEMY OF NATURAL SCIENCES polished, naked line : antennae piceous : front covered by yellow hair : thorax densely covered by yellow hair black in the middle : scutel piceous, covered by yellow hair : wings with a large fuscous spot on the middle, obsolete in the male : poisers piceous : tergum black, covered by black hair; basal segment and second segment at base covered by yellow hair : feet hairy ; tarsi piceous : posterior thighs of the male much thickened and with their tibiae arquated. Length three-fifths of an inch. This I formerly considered as Eristalis posticatus Fabr., but his attributed characters of " thorax inimaculatus " and " femo- ribus posticis dentatis " seem to prove it distinct. [Walker, List of Diptera of British Museum, 3, 598, refers this species to Merodon. — Sacken.] SYKPHUS Fabr. Meig. 1. S. STEGNUS. — Blackish-blue; tergum fasciate with glau- cous. [ 164 ] Inhabits Mexico. Body black-blue : hypostoma with dull cinereous irregular rugosities : antenna), terminal joint beneath dull honey-yellow : wings hyaline, between the mediastinal and postcostal nervures yellowish : poisers yellow : tergum velvet black, opake, with polished glaucous bands, the first one interrupted ; second and third occupying the basal half of the segments, the outer margin and the narrow tip, together with a longitudinal line ; terminal segment entirely glaucous : tibiae honey-yellow : venter cupreous. Length less than three-tenths of an inch. 2. S. MUTUUS. — Tergum yellow, with blackish bands and spots. Inhabits Mexico. Head beneath and behind plumbeous : posterior orbits dull yel- lowish : front and vertex brassy black : hypostoma prominent, yellow : antennae, beneath honey-yellow : thorax olivaceous, with a blue vitta, and yellow one over the wings : scutel dull yellow- ish, paler at tip : tergum with five broad blackish-purple bands, concealing the incisures, and on the middle of the third and fourth segments are two small blackish spots ; terminal band [Vol. VI. OF PHILADELPHIA. 359 somewhat trilobate : feet yellow ; posterior tarsi blackish : venter yellow, tinged at tip with ferruginous. Length one-fourth of an inch. Closely allied to S. mars not divided as it is in the latter genus, and it is worthy of particular remark, that in NotiopMlus there exists the spine and recipient cavity of Elater. Colliuris ig composed of two species, natives of the East Indies, and one of South America, distin- 1818.] 27 418 TRANSACTIONS OF THE guished by the cylindrically-conic thorax, more elongated body, and narrow, transverse mentuni, which is widely emarginated, without a conspicuous inner division, but in other respects much resembling Cicindela. A genus has been lately formed by Mr. Latreille, under the name of TJierates, for an insect of the South Sea Islands, which Fabricius had named C lahiata. This has a strikingly discrepant peculiarity in the form of the intermediate palpi, which are abbreviated into a spine-like process. Manticora includes two species, indigenous to the Cape of Good Hope, which resemble Cicindela by the form of the mentum, in M'hich there is scarcely any difference; the jaws also are similar, and the mandibles not unlike; but a good distinctive character rests in the palpi, of which the posterior are larger than the intermediate ones; the abdomen also is somewhat pedunculated, and embraced each side by the elytra. The last proximate genus which I shall notice, is that of Megacephala, of which at least two species, the Carolina and Virginica, are natives of this country, and are principally found in the Southern States. In this genus, as in those before adverted to, there is no difficulty in pointing out good and substantial characters, by which [ 405 ] it may be read- ily known ; the anterior palpi are elongated, and reflected, not equal to the intermediate ones, as in Cicindela; the inner divis- ion of the mentum is much shorter and the front of the head convex. Having thus noted the diflferences existing between this genus and each of its neighboring genera, I shall next proceed to lay down its chai'acters, distinguishing them into Essential, Artifi- cial and Natural, for the first of which the preceding remarks will furnish materials ; and finally, I shall endeavor to desci'ibe the species with such accuracy and detail, that they may be readily known. [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 419 Order Y.—COLEOPTERA. Section I. Pentamera. — Family I. Entomophaga. — Tribe I, ClCINDELET^. CICINDELA. Oicindela Linn. Fabr. Latr. Buprestes GeojBT. Essential Character. — Maxilloe monodactyle ; mentum tvifid, inner division scarcely shorter ; intermediate and posterior palpi subequal, filiform ; tibiae simple. Artificial Character. — Antennae filiform; clypeus shorter than the labrum ; maxillae with two very distinct palpi, of which the exterior one is nearly equal to the labial palpi, penultimate joint of the latter hairy ; [406] mentum trifid, the divisions nearly equal in length ; feet slender, elongated. Anterior tibia with- out a sinus near the tip. Natural Character. — Body oblong, of a medium size, agile, winged, hairy, above depressed, and punctured. Head as large as the thorax, exserted, inclined, suboval. Ver- tex rugose, elevated each side upon the eyes, concave on the disk. Antennae filiform, eleven-jointed, shorter than the body, first joint dilated, attenuated at base, and inserted in the anterior canthus of the eye, with which and with the clypeus it is nearly in contact; second joint very small, rounded, third cylindi'ieal, longest, and with the next dilated at tip, succeeding ones subequal, or gradu- ally decreasing in length, and furnished with a few rigid hairs at their tips, terminal one obtuse. Clypeus transverse, very short, contracted in the middle. Labrum coriaceous, very large, trans- verse, often dentated, exserted, prominent. Mandibles advanced, prominent, attenuated and incurved towards the tip, dentate within, a large compound tooth at the base, and about three other distinct ones nearer the tip. Maxillae corneous, recurved, 1818.] 420 TRANSACTIONS OF THE linear, a little gibbous at the insertion of the palpi, deeply ciliate with rigid bristles within, and armed with a terminal, distinct, moveable, partly incurved nail. Palpi six, filiform ; anterior pair biarticulatc, first joint elongated, rectilinear, a little dilated at tip, almost attaining the apex of the maxilla, second joint linear, incurved over the point of the maxilla and attaining the termination of the nail. Intermediate palpi with the preceding, situate on the back of the maxillae, quadriarticulate, first joint [407] abbreviated, attenuated at its insertion, second joint cylin- dric, elongated beyond the tip of the maxilla and equa to the two succeeding ones conjointly, third shorter than the terminal one, gradually dilated to the apes, fourth somewhat enlarged to- wards the extremity, truncate. Posterior, or labial palpi pe- dunculated, approximate at base, nearly equal to the preceding- pair, triarticulate, first joint minute, attaining the tip of the in- ner division of the mentum, second elongated, cylindric, very hairy above, terminal one glabrous, half as long as the preceding, truncate at summit. Labium membranaceous, short, concealed behind the mentum. Mentum, corneous, transverse, somewhat concave, trifid, inner division conic, as long or nearly so as the latei'al ones, and a little more advanced, lateral ones dilated, and rounded on the external margin, tip conic, the separating sinuses admitting the free motion of the labial palpi. Eyes large, very .prominent, reticulate, obovate, distant from the thorax. Trunk. — Thorax subquadrate, length and breadth nearly equal, generally with an anterior and posterior impressed, transverse line connected by a dorsal, longitudinal one giving to the disk a bilobate appearance. Scutel triangular, conspicuous, acutely margined. Pectus hairy, punctured or scabrous, brilliant, prominent between the anterior coxse, (sternum) about half as long as the coxae, con- cave at tip. Epigastrium usually hairy, punctured, brilliant. Elytra rigid, as long as the abdomen, depressed, incumbent not deflected, rounded behind, wider than the thorax, humerus pro- minent, rounded before, suture and margin nearly parallel, disk punctured, granulated, granulas exceedingly minute. [408] Wings, hyaline, with a few nerves ; costal margin strong, stigma dilated, with three hyaline spots. Feet elongated, sub-compress- tidj slender, formed for running; hind pair longest; anterior [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 421 pair shortest; coxa) of the four anterior ones conic-ovate, of the posterior pair minute and concealed ; trochanters of the two an- terior pairs subtriangukr, of the posterior ones large, reniform and prominent ; thighs nearly equal to the tibioe, two anterior pairs, a little dilated near the base and attenuated towards the tip, hind pair linear ; tibiie slender, linear, not emarginate with- in, heel armed with two spines ; tarsi five-articulate, filiform, longer than the tibiivs, joints cylindrical, first joint longest, second, third and fourth gradually decreasing in length, the latter not bilobate, terminal joint as long as the third and furnished with two simple, incurved, acute nails; first, second and third joints of the anterior pairs in the male dilated, hairy beneath. Ahdomcn. — Subcordate or subtriangular, of six distinct seg- ments, five in the female; tergum concave on the disk, with an elevated margin ; venter convex, first segment divided into two re- mote, almost triangular portions, forming the antei'ior lateral angles, second segment with two deep, rounded sinuses near the middle for the reception of the third pair of coxas, separated by a sub- triangular, obtuse portion of the segment; third, fourth and fifth subequal,- conspicuously falcate behind at the margin, rather di- minishing in size, the last more rapidly narrowed in the male, the sixth segment with an obtuse sinus at the middle tip ; tail convex above, truncate beneath, with a deeply indented line near the tip in the female. Larva. — Body soft, cylindrical, elongated, whitish, with a double, erect, dorsal spine on the eighth segment; [409] head coriaceous, colored, depressed and concave above, beneath con- vex, much broader than the body, rounded, furnished with strong, prominent mandibles, short antennae and two stemmata on each side ; first, second and third segments, each furnished beneath with a pair of scaly feet, the former with a coriaceous disk ; tail simple. Food. — Insects, worms, &c, in the different stages of their ex- istence. Season. — Spring, summer, autumn. Color. — Green, purplish or black, often varied with the two for- mer, and exhibiting brilliant metallic tints, the elytra usually with abbreviated bands, lunules, and spots of white or yellow. 1818.] 422 TRANSACTIONS OF THE Ohs. The sexes may be distinguished from eacli other by the three first anterior tarsal joints of the male being dilated, and hairy beneath ; the last segment of the body, with an obtuse sinus. The tarsi of the female are simple, the tail canaliculate towards the tip. 1. C. VULGARIS. — Obscure, on each elytron three whitish bands, two of which are curved, and the intermediate one re- fracted. Length more than three-fifths of an inch. Inhabits North America. Desc. Head blackish or obscure cupreous, green at base above, front with cinereous hair ; antennae, first, second, third and fourth joints green, furnished with a few white hairs before, ori- gin of the hairs in punctures, which are more obvious on the basal joint, remaining joints black, opaque ; labrum white, with three [410] black teeth at tip and four marginal punctures, one of which behind each of the lateral teeth, and one at each an- terior angle ; mandibles white at the base, black within and at the tip ; palpi above green, beneath purple, the second joint of the labials white. Trunk, thorax quadi'ate, inconspicuously nar- rowed behind, obscure cupreous, with distant hairs, submarginal impressed lines blue ; feet green ; thighs usually brassy-red above; elytra cupreous brown or blackish obscure, with minute, irregular, green punctures ; suture and external edge cupreous, each ely- tron with an external lunule or curved line, originating on the humerus, sometimes interrupted on the margin and curved in- wards towards the tip of the elytron, intermediate band refracted, at the centre of the elytron, in an obtuse angle, curved down- wards, and terminating near the suture, posterior band, some- what lunate, terminal. Abdomen, tergum greenish blue, segment brownish or pale at tip ; venter blue with a purple shade ; tail, and sinus of the male purple. This species I have always been accustomed to refer to C. fri- fasciata, and it is not without considerable hesitation that I ven- ture to give it a distinct name. Mr. Melsheimer considered it as trifasciuta, and that name in his catalogue refers to the in- sect under consideration ; it is also true, that it corresponds in [A^ol. I. * AMERICAN PHILOSOPHICAL SOCIETY. 423 every particular with the short description of that insect in the Syst. Nat. and also in the Syst. Eleut., but this circumstance alone is not sufficient to warrant us in concluding it to be the same, for in this instance, as in veiy many others wherein brief descriptions are concerned, several distinct species may be re- ferred with equal propriety to the same trivial name. Olivier, in his celebrated work, gives us a few additional characters of the trifasciata, the most important of which " on voit une raie interrompue, le long de la suture, jusqae vers le milieu," is with respect to our insect a [411] good discriminative charac- ter, in which this line or vitta never has existence ; the size also as depicted by him, tab. 2, fig. 18, is not quite half an inch, whereas that of the vuhjaris is full three-fifths. From these characters it must be evident that OUvier's trifasciata is a dif- ferent insect from the one here described, and as he examined the various cabinets in which the insects described by Fabricius are preserved, I rely upon his knowledge of the Fabrician spe- cies, particularly as he gives the synonym of that author. Against the correctness of this decision it might be urged, that Fabricius, in his subsequent work, Syst. Eleut., does not refer to the above mentioned figure, neither does he quote Olivier at all under his description of trifasciata ; but this objection, how- ever plausible, will have no weight, when we know that he refers to this very figure, the 18th, of tab. 2, for the C. punctuhifa, an insect with which it has no other than a generic affinity, and for which, on comparison, it could not be mistaken. [Afterwards described as C. ohliquata Dcj. — Leg.] 2. C. HIRTICOLLIS. — Obscure cupreous, beneath bluish-green, trunk each side cupreous brilliant, hairy ; elytra with two luuules, intermediate refracted band and outer margin white. C. hirticollis, Journal of the Academy of Natural Sciences, vol. 1, No. 2, p. 20. Length rather more than half an inch. Inhabits Pennsylvania. Dcsc. Head cupreous, varied with green or blue, front with cinereous hair; terminal joints of the antenna) black, opaque ; labrum white^ sinuate on the anterior edge, and furnished with a 1818.] 424 TRANSACTIONS OF THE sino-le tooth and eight submarginal punctures prodixcing hairs ; mandibles white at the base, within dark green, tip black : palpi white, terminal joints green. Trunk, thorax with the submarginal liaes blue, quadrate, not straitened behind; elytra obscure, punc- tured irregularly with green, punctures larger than in [412] the preceding species, more conspicuously serrate at the hind margin and mucronate at the inner tip : anterior lunule originating on the humerus, continued a short distance on the margin, aad curved rather towards the base of the elytron, intermediate band divari- cated on the margin, so as to attain the lunules, but is sometimes interrupted before the posterior, refracted in a somewhat acute angle at the centre of the elytron, thence recurved nearly parallel with the suture, and dilated at its termination ; posterior lunule terminal ; feet red-cupreous, hairy ; trochanters purple. Abdo- men, venter blue, segments tipped with brassy ; tail purple. This insect does not appear to have been described except in the work to which the synonym refers ; it had been previously overlooked, probably in consequence of its proximity in point of colors and marking to the preceding species, which it generally accompanies ; but a small degree of scrutiny will detect a suffi- cient number of discriminative characters to warrant us in con- stituting of this insect a distinct species ; in size its female is equal to the male of 0. vulgaris, the punctures of the elytra are much larger, the intermediate band is so widely spread out upon the margin, as nearly to connect the anterior and posterior lunules, and the tip of the anterior lunule is curved towards the base of the elytra, and not obliquely towards the tip, as in the preceding species ; a striking difference also is perceptible in the upper lip which in that insect is three-toothed, but in the C. hlr- tk-oUia it is one-toothed. Neither this nor the preceding species have been observed to vary in their colors or markings. [Ante, 2 ; this description and figure evidently refer to the species afterwards described as C. alhohirta Dej. The figure is quite characteristic, and can by no means be regarded as G. hal- timorensu Herbst., (^rejjanda Dej.) — Lec] 3. C. UNIPUNCTATA. — Dull cupreous, obscure, naked, base of the mandibles, labrum and marginal dot on each elytron, white. [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 425 C. nnipunctata, subpurpurascens, labio clytrorumque puncto albis. Fab. Syst. Eleut. pars 1, p. 238. [413] C unipunctata, violette, brilliante eii-dcssoiis, obscure en-dos- tiis ; elytres avec vin point blane. Oliv. Inst. 33, tab. 3, fig. 27. Length nearly seven-tenths of an inch. Inhabits the southern States. Dec. Head entirely rugose, neck above granulate ; clypeus narrowed in the middle ; labrum much broader in the middle, white, edge brown, strongly three-toothed before, of which the intermediate one is larger, margin with four punctures, of which two are at the lateral angles and the others at the base of the lateral teeth; mandibles white at base, tip black; palpi green. Trunk, reddish-purple on the sides; thorax with the lines not deeply impressed or differently colored, a little narrowed be- hind ; elytra with a slight shade of greenish-olive, convex, with- out a sutural angle or spine behind, irregularly punctured with green ; on the posterior half are some larger, scattered, impress- ed green dots, a few at the base and in an undulated line near the suture ; surface somewhat unequal, a conspicuous indenta- tion towards the base of each near the suture and an oblique, abbreviated, obscure one in the centre of the elytron near the marginal spot, which is subtriangular, white and placed on the middle of the margin ; a minute, obsolete, white dot is situate at the posterior curve. Abdomen, venter rcddiiih-purple each side near the base; tail black. Of this insect I have seen but a single specimen, for which I am indebted to Mr. J. Grilliams, who caught it in the state of Maryland. It is very possible that it may be a distinct species from the C. unipunctata as the figure of that insect by Olivier above referred to is rather smaller and of a somewhat different habit ; nevertheless as his description agrees very well [414] with our insect, I shall consider it as the same until those who have an opportunity of seeing the original may decide. 4. C. SEXGUTTATA. — Grecnish-blue polished, each elytron with three marginal white dots, the two first, nearly equal, the last transverse and terminal. C. ^-guttata, viridis, nitida, elytris punctis tribus marginali- bus albis. Fab. Syst. Eleut. 1, p. 241. 1818.] 426 TRANSACTIONS OF THE C. Q-guttata, d'un vert bleuatre brilliant; elytres avec trois points blanchatres, sur le bord exterieur. Oliv. Ent. No. 33, pi. 2, fig. 21, a. C. 6-ffuttata, elle brille du plus beau verd-bleu. Le pattes sont bleueS; les yeux blaucs. Herbst. Arch. p. 159, pi. 27, fig. 17. Lengtli of the male more tban half an inch. Inhabits North America. Desc. Head green, sometimes glossed with blue; antennas, four basal joints green, remainder black-brown ; labrum white, edged with brown, three triangular teeth before, and six margi- nal blackish punctures each of which latter furnishes a hair ; mandibles white above, tip black ; palpi green ; eyes brown. Trunk green, tinged beneath with blue, but without a cu- preous tint, hairs remote and short; feet green; trochanters brassy ; intermediate tibia with more numerous short hairs near the tip behind ; elytra green, brilliant, behind the middle blu- ish-purple, which deepens towards the tip, hind margin rounded, obscurely serrate, sutural margin not abbreviated nor mucronate at tip, each elytron marked by three marginal white dots, the first placed in the middle of the margin, one at the posterior curve, and the third transverse and terminal ; inferior page blackish, marginal spots testaceous. Abdomen, venter bluish- green, segments margined, bronzed, edge and tail purple. [415] Var. a. Elytra each with an additional spot, which is fulvous or white, and generally inconspicuous, placed behind the middle triangularly with respect to the two anterior, marginal ones. Var. /?. Each elytron with a single marginal spot, the two posterior ones wanting. This insect is common in Pennsylvania, but not so frequent as either vulgaris or hirticoUis. Its characters are strong and discriminative, so that our synonymes are free from doubt, al- though that of Herbst represents the eyes as white; but this color is, as in some of the Carabi and many other insects, only to be found in the dried specimen, and is by no means universal. The second variety was brought from the banks of the Missouri, above the confluence of the river Platte, by Mr. Thomas Nuttall. 5. C. DORSALIS. — Bronzed, elytra white, each with two curved [Vol. L AMERICAN PHILOSOPHICAL SOCIETY. 427 lines on the disk, suture, and curved branch near the base, green ; tail testaceous. C dorsalis, Journal of the Acadeui}' of Natural Sciences, vol. 1, p. 20. Length nearly three-fifths of an inch. Inhabits New Jersey. Dt'sc. Head bronzed, naked, edges green ; antennje brown, basal joints green, the third hairy before; labrum white, not emarginate at the anterior angles, broad before, and furnished with a single tooth, eight punctures very near the edge, of which six are equidistant on each side of the tooth, the others remote j clypeus almost obsolete above ; mandibles white above and be- neath, tips and teeth within [416] black-green, a very strong tooth beneath, near the tip of one mandible, the other simply a little angulated in that part; palpi white, tip of the terminal joint of each blackish. Trunk cupreous, covered each side by short, dense, prostrate, cinereous hair ; thorax bronzed, varied with green, margin and longitudinal dorsal line hairy ; scutel green or bronze ; elytra white, with very minute, irregular punctures, and a few larger ones on the anterior margin; suture and a lunated branch near the scutel, curving on each elytron and abbreviated behind, the middle of the base green, disk with two abbreviated green brack- et-formed lines, of which one curves outwards and the other in- wards, respectively terminating at one end opposite the centre of the other. Abdomen, venter bronzed, segments margined with purple, having dense, cinereous, prostrate hair each side; tail and tip of the last abdominal segments testaceous. This very fine and beautiful species I discovered a few years ago on the sea beach of New Jersey. In several of the Cicinde- lae there is a strong tooth on one of the mandibles near the tip, beneath pointing downwards, which is very conspicuous in the present species; these teeth are I believe never found on both mandibles, otherwise the mouth could not be properly closed, ac- cordingly the tip of the armed jaw is always beneath the other in repose ; neither is the weapon confined to the right or left mandible, but is found upon either indifi'erently, whilst upon the corresponding part of the other, is usually a very small angle. It must be remarked that this insect seems to approach a species 1818.] 428 TRANSACTIONS OP THE described by Fabricius, as a native of the island of St. Thomas, and I here i-ubjoiiT his definition, " C. viridi-aenea, elytris albis : autura lunulaque viridi-cEneis. Syst. Eleut." [417] [Ante, 1 ; afterwards described as C..st'(jnataJ)ej. — Leg,] 6. C. MARGINATA. — OHvaceous, obscure, sometimes with cu- preous reflections; cheeks, sides of the trunk and of the abdomen, with short dense hair, each elytron with a whitish margin, two abbreviate branches, an intermediate refracted one, and two dots at base. C. mai-ginata, viridis, elytris punctis quinque, lunulaque apicis albis. Fabr. Syst. Eleut. 1, p. 241. Length of the male more than half an inch. Desc. Head greenish, olivaceous varied with purple, and edged with blue ; antenna2 purple at base, terminal joints brown; front with prostrate hair ; labrum white, with several minute, obtuse teeth, in the male, with a single more prominent one, and about ten marginal punctures, lateral angles rounded; cheeks covered with dense hair; palpi white, terminal joint of each black at the tip. Trunk, on each side cupreous, concealed by short, cinereous hair ; thorax bronze or olivaceous, posterior impressed line green or reddish ; elytra olivaceous-obscure, or tinged with cupreous, margin pale, uniting the anterior and posterior lunules, the former with an accessary spot at the middle of the base, and a smaller one interrupted from its tip, the latter continued a short distance upon the sutural margin, intermediate band refracted in a very acute angle, at the centre of the elytron elongated, and dilated behind, terminating at the suture, in a transverse line drawn from the tip of the posterior lunule ; trochanters testaceous. Abdomen, venter very hairy each side, segments bronzed and margined with purple ; tail testaceous, of the female blackish- purple. [418] The markings of the elytra are in many specimens so far obso- lete, as to be only distinguishable in a particular light; and they are always less obvious than those of the vulgaris, hirticoUis, &c., to the latter of which, this insect, in the distribution of its bands and lunules, bears some resemblance. [Afterwards described as C. varicgata Dej. — Lec] [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 429 7. C. OBSCURA. — ]?lack, each elytron with two white marginal spots and a terminal lunule. C. obscura, nigra, elytris piinctis duobus marginalibus, lunula- que apicis alba. Fabr. Syst. Eleut. 1, p. 238. Inhabits North America. Desc. Head black, naked; antennae brown at tip; clypcu.s lai'ge ; labrum white, three-toothed, not eniarginate, at the ante- rior angles, margin with about sis punctures, of which one is placed each side of the larger central tooth ; mandibles white on the exterior base above ; palpi piceous. Trunk, black, imma- culate ; elytra tinged with brown on the posterior half, puncturc.« minute, not deeply impressed, two white marginal maculae, of which the anterior one is smaller, rounded, and placed near the humerus, the other large, triangular, situate in the middle of the margin, lunule terminal ; tarsi piceous. Abdomen, black, naked, immaculate. Yar. a. Labrum black or piceous, anterior marginal spot of the elytra wanting. Very distinct from any other species with which I am ac- quainted, for the variety I am indebted to Mr. J. Gilliams, who caught it in the State of Maryland. [Not the C. obscura Fabr., which is the European 0. ger- manica; it is a black race of C. riiglfrons Dej., and was described Z.S, C. modestaDe']. — Leg.] [419] 8. C. PURPUREA. — Head, impressed lines of the thorax and margin of the elytra green, the latter with a central, reclivate, oblique, abbreviated band, terminal line and intermediate dot white. C. purpurea, purpurine en-dessus, d'un vert bleuatre en-des- sous; elytres avec une band courte, et deux points blancs. Oli-' vier, Ins. 33, t. 3, fig. 34. C. marginalis ? thorace elytrisque cupreis ; margiuibus viridi- bus, elytris lunulis duabus albis, Fabr. Syst. Eleut. 1, p. 240. Length of the male about three-fifths of an inch. Inhabits North America. Z>i?.sc. Head red-cupreous, hairy with green edges, and two distinct green lines between the eyes, originating at the base of the antennae, and approximating towards the vertex ; antennai 1818.] 430 TRANSACTIONS OP THE (Teen at base, tip brown : clypeus blue ; labrum wliite, three- toothed, edge black and with about eight marginal punctures; mandibles black within and at tip ; palpi green. Trunk, green, each side golden; thorax with a cupreous disk; elytra oliva- ceous-green to a brilliant cupreous-red, margin bright green, each with an oblique, reclivate band near the middle, originating at the green margin, and terminating at a distance from the su- ture, a transverse line at tip and an intermediate submarginal dot, white ; trochanters purple ; tibiae hirsute behind. Abdo- men, venter green, sides purple. Var. o. Elytra destitute of the intermediate dots. G. ramosa JVIelsheimer, Catalogue, p. 46. YciT. 0. Head and thorax green ; elytra as in the preceding variety. Var. y. Head and thorax green ; elytra immaculate. [420] Var. i. Black, opaque above, beneath polished ; labrum, lines and spot of the elytra, as in the species ; cheeks and venter a little glossed with purple. C tristis ? nigra, elytris macula media flava. Fabr. Syst. Eleut. 1, p. 235. (Var.) This insect is subject to numerous varieties in color and mark- ings, but those above described are the most striking of any that liave fallen under my observation ; the anterior band is sometimes obsolete towards the tip, so as to leave a very short perfectly transverse line attached to the margin. The variety o, is much more common in Pennsylvania than either of the others. It is probable that the marginalis of Fabricius will prove to be the same with this, but Olivier's designation, having the right of priority, will of course be adopted. The variety 8 is a memora- ble departure from the appearance of the species, no trace of the original coloring remains upon it, but that of the bands, &c., of the elytra ; is seems a link in the connecting chain which unites the purpurea with the species described by Fabricius, under the trivial name tristis, and seems to be alienated from it, only by the presence of an intermediate dot and terminal line; the central re- clivate band is precisely the same in form. Nevertheless it is highly probable that the tristis is a distinct species, although for the present I have placed it here as a variety, having no oppor- tunity of examining a specimen. [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 431 9. C. PUNCTULATA. — Obscure cupreous, beneath varied with blue and purple, each elytron with a few white points and ter- minal lunule, an undulated line of distant green punctures near the suture. C. punctidata, bronzee cn-dessus, bleu en-dessous; elytres avee quelques points blancs, et una suite de pointes enfonces brillans. Oliv. Ins. No. 33, tab. 3, fig. 37, a. b. [421] 0. puiuiulata , capite, thoraceque cupreis, elytris punctatis ob- scuris : punctis lunulaque apicis albis. Fabr. Syst. Eleut. 1, p. 241. C. ohscura Melsh. Catal. Length about half an inch. Inhabits North America. Dcsc. Head cupreous obscure, margin, cheeks and two lines between the eyes blue ; antennjs brown, base cupreous ; front naked ; labrum white, sinuated on the edge, with a single promi- nent tooth and six submarginal punctures ; palpi, labials white, last joint green, external maxillary ones piceous, third and fourth joints green. Trunk, deep blue, varied with purj^le beneath, sides cupreous J thorax color of the head,impiessed lines and lateral mar- gin blue"; elytra color of the thorax, irregularly punctured with green, on each an undulated line of distant larger green punc- tures near the suture, and a i'ew at the middle of the base; five small white dots, of which three are on the disk arranged in an oblique line, one near the humerus, the second central, third near the suture, the fourth and fifth dots marginal situate oppo- site the two preceding ones, terminal lunule straight, not ascend- ing the suture. Abdomen, venter varied with purple and blue; tail bronzed. Var. a. Elytra destitute of the white dots, the lunule only re- maining. A very common insect, its variations are confined to changes in the number and magnitude of the spots of the elytra ; the anterior marginal dot is always minute, and of all the others most frequently wanting, the two anterior spots of the disk also are often invisible. Fabricius by mistake refers to fig. 18, tab. [422] 2, of Olivier's Insects, for this species, which is intended for the C. trifasciata, a native of South America, rather smaller than this insect and totally distinct in its characters. 1818.] 432 TRANSACTIONS OF THE 10. C FORMOSA. — Hed-cupreous brilliant ; elytra with a tliree- branclied, broad white margin. C. formo^a, American Entomology, pi. 6. Journal of the Acad, of Nat. Sciences, p. 19. [Ante, 1, 35.] Length seven-tenths, breadth one-fourth of an inch. Inhabits the sandy alluvions of the Missouri, above the con- fluence of the river Platte. Desc. Head red-cupreous, brilliant ; front hairy ; antenna; fuscous, basal joint green, second bronzed, third and fourth pur- ple ; clypeus and cheeks deep purple, the latter hairy ; labrum white, with a blackish three-toothed edge, and six marginal punctures; mandibles black, base above white; palpi, basal joints testaceous or pale, terminal one green tipped with bronze. Trunk, deep purple, sides green, hairy ; thorax color of the head, scabrous ; pectus green before : feet purple ; coxae hairy ; tro- chanters bronzed ; elytra color of the head and thorax, with a dilated, white, uninterrupted margin, and bluish edge, anterior and posterior branches, short, intermediate band flexuous and oblique, nearly attaining the suture, and with the other branches dilated, equal to the margin ; hind angle not conspicuously mu- cronate. Abdomen, venter exclusively purple, covered with cinereous hair ; tail bronzed. The most beautiful, and one of the largest of the North American species ; in the arrangement of the bands, &e. [_ 423 ] of the elytra, it has some resemblance to the C. lilrticolUs, but is a perfectly distinct species. [Fig. 10 of the plate by an error represents a variety of C. pusilla. — Say, MS. correction.] 11. C. DECEMNOTATA. — Green above, tinged with cupreous; elytra margined with bright green or bluish, four white spots and an intermediate refracted band. G. 10-notata American Entomology, pi. 6. Journ. Acad. Nat. Sciences, p. 19. [Ante, 1, 34.] Length three-fifths of an inch, nearly. Inhabits with the preceding. Desc. Head green, varied with cupreous and blue ; front hairy, labrum white, unequal, edge black, and tridentate ; an- tennae fuscous, basal joints variegated ; palpi dark purple, varied with green. Trunk, green, a little bronzed each side ; thorax [Vol. L AMERICAN PHILOSOPHICAL SOCIETY. 433 bluish, tlie bilobate disk cupreous ; scutel blue ; elytra dull olivaceous-green, with a slightly cupreous tint and blue margin, four white dots and refracted band ; of the anterior marginal dots, one is placed on the humerus, and the second equidistant from the band, which is refracted at the centre of the elytron, and terminated near the suture, in a transverse line with the penultimate spot ; this last is large, submarginal, and orbicular ; terminal spot transversely triangular, and with the first interrupt- ing the margin ; sutural angle not mucronate. Abdomen, venter bluish-green, with a few hairs each side ; tail purple. The specimen from which this description was taken is a female; it resembles C. purpurea in its diflferently colored elytral margin, but is sufficiently distinct from that insect by its more numerous spots, &c. [424] [The figure is so different from that given in American Ento- mology, ante 1, 34, that it is impossible to believe that both have been taken from the same specimen. The present figure evi- dently belongs to one of the western varieties of C. punctulata, but the description does not agree with that species. — Leg.] 12. C. PUSILLA. — Body above blackish obscure, beneath black-blue or greenish ; trochanters testaceous ; elytra with two lunules, an intermediate band, which is divaricated on the margin. C. jiitsiUa, Jonrn. Acad. Nat. Sci., p. 21. [Ante, 2.] Length less than half an inch. Inhabits with the preceding. Desc. Head dark green, obscure ; antennae fuscous, bronzed- testaceous or greenish at base ; labrum white sinuate, and brown on the edge, with sis or eight marginal punctures ; palpi testaceous, bronzed at tip ; front naked. Trunk obscure ; thorax with the impressed lines not diflferently colored ; elytra black, each with two lunules and a recurved band, attenuated, anterior lunule elongated, much narrowed, acute at tip, posterior one not dilated at the suture, and incurved from the margin ; band dilated near the margin into a triangle, recurved before the mid- dle, and passing very obliquely and nearly in a right line, to its termination near the suture, sometimes obsolete at tip ; feet testa- 1818.] 28 43)4 TRANSACTIONS OF THE ceous, thighs dark green. Abdomen, venter dark blue, segments tipped with bronze, almost naked each side ; tail purple. Var. a. Elytra destitute of the intermediate band. This is the smallest of our species, being less than punctulata, and of the most sombre coloring j the lunules and band hardly relieved by a contrast with the general surface, as they are very narrow. The preceding descriptions were drawn out from specimens in my possession, the three last species, were caught by [425] Mr. Thomas Nuttall on the Missouri, and now form a part of his collection ; to him I am indebted for the permission to de- scribe them. Specimens of those for which I have referred to Melsheimer's Catalogue, were sent me by the Rev. John Melshei- mer of Hanover, a zealous entomologist, and son of the author of that work, who may justly be entitled the father of entomology in this country. In order that the present paper may comprehend all the known North American species of this genus, and thereby pre- sent a complete Monograph, I subjoin from Fabricius, three de- scriptions of species, which have not fallen under my notice ; I therefore have taken the liberty to translate his description as follows : — 13. C. viOLACEA. — Bright blue polished ; labrum white. Inhabits Carolina. Cabinet of Mr. Bosc. Desc. Of a medium size ; body bright blue, polished, covered with elevated scabrous punctures ; antennae dark brown at tip • labium (labrum) and base of the mandibles above white. Syst. Eleut. part 1, p. 232. Is not this referable to the genus MegaccpTiala ? 14. C. ABDOMINALIS. — Black, labrum and lunule at the apex of the elytra white ; abdomen rufous. Inhabits Carolina. Cabinet of Mr. Bosc. Desc. Smaller than C germanica ; head and thorax cylindri- cal, black-cupreous, a little polished; labrum [426] white; ely- tra black, an obscure line of impressed punctures at the suture, [Vol. I. AMERICAN PHILOSOPHICAL SOCIETY. 435 and white lunule at tip; body aad feet greeuish-brassy, polished; abdomen ferruginous. Syst. Eleut. part 1, p. 287. 15. C. MICANS. — Head and thorax cupreous polished; elytra obscure ; minute points and lunule at the apex white. Inhabits North America. Syst. Eleut. part 1, p. 238. It is highly probable that this description was intended to de- signate an insect very similar to the C. puactulata, perhaps the same, or only a variety of it, for it is as characteristic of that species as it can be of any other. [From Transactions of the American Philosophical Society, New Series, Vol. 2, No. 1, 1823.] Descriptions of Insects of the Families of CARABICI and EYDBOCAN- THABI of Latreille, inhabiting North America.* Read August 26th, 1819. In the first volume of the New Series of the Transactions of this Society, I commenced the regular description of our North American insects, by a Monograph of the indigenous Cicindeletx j a Linnasan genus which occupies the first station in the improved classification of Latreille. I now proceed to lay before the Society descriptions of such of our native insects, as were included by Linne, in his three genera, Carahus, D^tiscus, and Gyrinus. The two former of these, but more particularly the first, are now considered as great families, constituting numerous genera, and agreeably to the or- der in which I have enumerated them, immediately succeeding the Cicindeletx, in the system which I have adopted. *The title page of the 2d vol. of the New Series of these Transactions bears date 1825, which was the time of completion of the volume, but the late Dr. T. W. Harris informed me in a letter, that he received from Mr. Say a copy of this paper, with the following addition to the title : — "Printed and published by Abraham Small, 1823." This, of course, gives Say's names precedence of those published by Germar in his Sp. Ins. Nov. in 1825. — Leg. 1823.] 4S6 TRANSACTIONS OF THE The Carabii are very numerous, are insectivorous, terrestrial, commonly inhabiting moist places, under stones, or [ 2 ] fallen trees, under bark or on flowers, &c. They generally run briskly when disturbed, and many species diffuse a foetid odor, or dis- charge a peculiar, pungent, acetous gas. The Dytiscii are much less numerous than the preceding, but are equally nourished by animal food. They inhabit the waters, occasionally visiting the surface for the purpose of respiration ; they move with rapidity and ease through the water and the air but on land their gait is embarrassed by the natatory form of the posterior feet. The Gyrinii, which are now included in the same family with the Dytiscii, are comparatively few in number of species, and those few are so intimately united in nature by a similarity of character and habit, that no division has yet been found neces- sary in the genus, which still remains unchanged as it was first established in the artificial system. These insects, like those of the preceding Linnsean genus, are insectivorous and aquatic ; they do not, however, like them, remain at the bottom to seek their prey, but chiefly confine themselves to the surface. They de- scribe graceful curvatures or gyrations on the surface of the water with a pleasing facility of movement, without exhibiting to the eye the oar-like feet by which that celerity is effected. When alarmed, they dive to the bottom with swiftness, carrying with them a globule of air, that their respiration may not be suspend- ed. When irritated, they eject a lactescent fluid, which, in many instances, diffuses an agreeable odor, somewhat similar to that of the Galycanthus jioridus of botanists. They fly with much ease and chiefly at night, but their movements on land are uncouth and embarrassed. After thus briefly noticing the most prominent features exhib- ited by these insects, it may be proper to observe, that the de- scriptions are drawn out from such specimens only as have fallen under my own observation, and which I had an opportunity of examining and comparing together, in order the more effectually to indicate their differential characters. The individuals are chiefly preserved in my cabinet ; and for such as I do not pos- sess, I have carefully referred to those collections from which I [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 487 have described them. I have scrupulously [3] retained all the specific names, which have been given by the late Rev. F. V. Melsheimer, in his Catalogue of the insects of Pennsylvania ; ex- cepting only such as have been previously employed in the same genera by other entomologists ; and so far as I could ascertain them by the aid of the scientific intelligence of his son the Rev. J. F. Melsheimer, who has liberally furnished me with specimens from his collection. I am also indebted to Mr. Thomas Nuttall, who has confided to my care his entire collection, with permis- sion to avail myself of the opportunity of describing such of them as are new. I have not thought it necessary to draw out the generic de- scriptions at length, as this has already been done with sufficient detail by Professor Bonelli of Turin ; whose excellent papers I have not yet had the good fortune to peruse. If, in the descrip- tion of some of the species, I have been anticipated by the labors of this, or any author, I shall immediately relinquish my claims, and do justice to the real discoverers, when their labors shall meet my eye. To the inflexible Linnsean entomologist, who may object to the numerous genera which are here adopted, I will merely observe, that each of those divisions which are here called families, he may regard as only genera, (as they coincide with those of Lin- nasus,) and to each of the species described he may add the char- acters of those divisions which are, in this essay, called genera ; thus the system as it stands, complicated as it is by the vast accession of discoveries of recent date, will afibrd him every fa- cility, which he might suppose to result from a scrupulous adhe- rence to the Linnaean method. The modern entomologist will readily perceive that I have not adopted all the genera of M. Bonelli, but that many of these are included under the genus Feronia of Latreille. In this respect I had no option ; having no definitions of such genera, with the exception of those contained in the Regne Animal, many of which are too brief to be exclusively relied upon. 1823.] 438 TRANSACTIONS OF THE ENUMERATION OF SPECIES. Brachinus. B. fumans. Cymindis. 1. C. sinuatus. 2. C. decorus. 3. C. viridipeniiis. 4. C. purpureus. 5. C. pilosus. Lebia. 1. L. tricolor. 2. L. vittata. 3. L. atriventris. 4. L. ornata. 5. L. viridis. 6. L. platicollis. Galeeita. G. americana. Odacantha. 1. 0. pennsylvanica. 2. 0. dorsalis. SCAEITES. S. subterraneus. Pasimachus. 1. P. depressus. 2. P. subsulcatus. Clivina. 1. C. bipustulata. 2. C. viridis. 3. C. lineolata. 4. C. pallida. 5. C. sphcericollis. 6. C. globosa. 7. C. pallipennis. MoEio. M. Georgise. Harpalus. 1. H. caliginosus. 2. H. bicolor. 3. H. erraticus. 4. H. pennsylvanicus. 5. H. faiinus. 6. H. herbivagus. 7. H. similis. 8. H. viilpeculus. 9. H. iripennis. 10. H. viridis. 11. H. hylacis. 12. H. rusticus. 13. H. carbonarius. 14. H. agricolus. 15. H. baltimoriensis. 16. H. csenus. [5] 1. Feeonia. 2. 1. F. musculis. 3. 2. F. basillaris. 4. 3. F. impuncticoUlis. 5. 4. F. angustata. 6. 5. F. obesa. 7. 6. F. lineola. 8. 7. F. pallipes. 9. 8. F. atrimedia. 10. 9. F. longicornis. 10. F. unicolor. 1. 11. F. stygica. 2. 12. F. moesta. 3. 13. F. sigillata. 14. F. placida. 1 15. F. tartarica. 2. 16. F. muta. 17. F. submarginata. 1. 18. F. impunctata. 2. 19. F. ventralis. 3. 20. F. adoxa. 4. 21. F. gregaria. 22. F. terminata. 1. 23. F. autumnalis. 2. 24. F. limbata. 25. F. parmata. 1. 26. F. cupripennis. 2. 27. F. convexicollis. 3. 28. F. honesta. 4. 29. F. 8-punctata. 30. F. nutans. 31. F. cincticoUis. 32. F. decora. 33. F. decentis. 34. F. extensicollis. 35. F. ochropeza. 36. F. lucublanda. 37. F. chalcites. 38. F. caudicalis. 1. 39. F. interstitialis. 2. 40. F. obsoleta. 41. F. punctiformis. 3. 42. F. recta. 4. 43. P. hypolithos. 5. Abax. 6. A. coracinus. 7. Epomis. 8. E. tomentosus. 9. Chl^nius. C. sericeus. C. sestivus. C. lithophilus. C. emargiuatus. C. pusillus. G. laticoUis. . C. impunctifrons. C. nemoralis. C. solitarius. C. pennsylvanicus. DlC^LUS. D. purpuratus. D. dilatatus. D. furvus. Panag^us. P. crucigerus. P. fasciatus. CYCHR0S. C. elevatus. C. unicolor. C. stenostomus. C. bilobus. Calosoma. C. scrutator. C. calidum. [ 6 ] CARABrS. C. sylvosus. C. interruptus. C. limbatus. C. serratus. Nebria. N. pallipes. Omopheoit. 0. labiatum. Elaphrus. E. riparius. NOTIOPHILUS. N. semistriatus. Bembidium. B honestum. B. punctato-stria- tum. B. Isevigatum. B. dorsalis. B. contractum. B. niger. B. oppositum. B. affinis. B. inornatum. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 439 10. B. flavicaudus. 11. B. proximus. 12. B. Isevutn. 13. B. variegatum. 14. B. tetracolum. Trechus. 1. T. conjunctus. 2. T. partiarius. 3. T. nipestris. Dytiscus. 1. D. firabriolatus. 2. D. verticalis. 3. D. mediatus. 4. D. taeniolis. COLYMBETES. 1. C. erythropterus. C. fenestralis. C. ambiguus. C. seriatus. C. nitidus. C. bicarinatus. C. venustus. C. glyphicus. C. obtusatus. C. stagninus. Laccophilus. 1. L. maculosus. 2. L. proximus. HyriROPORPS. 1. H. undulatus. 2. H. oppositus. 3. H. nigor. 4. H. catascopium. 5. H. lacustris. 6. H. affinis. IlYDROCANTHrS. H. iricolor. Haliplus. 1. H. 12-punctatus. 2. H. triopsis. Gyrinus. 1. G. americanus. 2. G. emargiuatus. 3. G. analis. 4. G. limbatus. [7] Order and Section.— COLJEJ OF TUBA PENTAMERA. Tribe I.—ENTOMOPHAGA. Family II.— CARABICI. BRACHINUS Web. Fabr. Anterior tibia emarginate ; elytra truncated at tip ; palpi fili- form; labium subquadrate ; neck none; abdomen with interior vesicles iirclosing a caustic, volatile, and detonating fluid ; nails simple. B. FUMANS. — Ferruginous; elytra blue-black; venter, testa- ceous-black. Brachiniis fiimans, ferruginous ; elytra blackisb-azure. Fabr. Syst. Eleut., p. 219. Body ferruginous, with numerous minute hairs ; head, front longitudinally impressed, each side near the base of the an- tennae; thorax with a longitudinal impressed line from the head to the scutol ; scutel minute, blackish-brown ; elytra blackish- azure ; about seven slightly impressed, very obtuse grooves, more distinct near the suture, and obsolete at the outer margin ; sepa- rating lines rounded ; venter dark reddish-brown. Length eleven-twentieths of an inch. Bather common under stones, &c., in various parts of North America. In common with the other species of the genus, it discharges from the posterior extremity of the body, when [8] alarmed or irritated, a caustic fluid; this is remarkable by an 1823.] 440 TRANSACTIONS OF THE audible detonation, with its accompanying cloud of smoke as in the discharge of a gun. CYMINDIS. Anterior tibiae emarginate ; elytra truncated at tip ; exterior maxillary palpi filiform; labials terminated by a securiform joint; neck none ; body depressed and destitute of the secretory organs which furnish the detonating fluid ; nails pectinated. 1. C SINUATUS. — Black; feet testaceous; elytra with a pale humeral spot and margin. Length one-fourth of an inch. Body punctured, glabrous; antennae, labrum, and palpi rufous; thorax transverse, slightly contracted behind, lateral edge ab- ruptly and minutely excurved behind, forming a minute acute angle, basal lines obsolete, basal edge sinuately rounded ; elytra blackish-brown, with a pale, rufous, humeral spot, margin and obsolete geminate spot behind, strias acute, punctured, inter- stitial lines flat broad ; postpectus, punctures obsolete ; feet tes- taceous; venter impunctured. Found by Mr. J. Gilliams in Maryland. [Afterwards described by Dejean as C. puatulata ; it belongs to the genus Ajwnes Lee. Ann. Lye. Nat. Hist. New York, 5, 174.— Lec] 2. C. DECORUS. — Head blue ; thorax rufous ; elytra green polished. Length three-tenths of an inch. [9] Carabus decorus, alatus, cyaneus, thorace pedibusque rufis. Fabr. Syst. Eleut. Head blackish-blue, obsoletely punctured; beneath purple black : antennae fuscous ; two basal joints rufous-obscure ; mouth black ; mandibles rufous beneath ; trunk rufous, impunctured ; beneath somewhat paler ; thorax with an impressed line and ob- solete transverse rugae ; elytra green polished, with punctured striae ; deflected edge purplish ; feet rufous ; tips of the thighs and base of the tibiae black ; penultimate tarsal joints bilobated ; venter obscure bluish-black. Found by Mr. Nuttall on the Missouri. [Belongs to Calleida Dej. — Leg.] [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 441 3. C. VIRIDIPENNIS. — Elytra green, polished, margined with cupreous. Carabus prasinus Melsh. Catalogue. Inhabits Pennsylvania; rare. Body destitute of hairs ; head purple-black ; vertex gla- brous ; front impressed each side near the antennae ; antennae testaceous, rather darker towards the tip ; thorax green, tinged with purple ; a longitudinally impressed line, and trans- verse, minute, parallel rugae ; posterior angles angulated ; be- neath purple-black, green each side ; feet purple-black, paler to- wards the tips; penultimate tarsal joint bilobate; scutel testa- ceous ; elytra striate, green, polished, reflecting in some lights a slight purpurescent tinge; outer margin cupreous; striae distinct, acute, distant, the marginal one with distant punctures from the humerus to the apex ; venter blackish. Length half an inch. This was sent to me by Dr. J. P. Melsheimer ; I have not found a specimen, and therefore have considered it as a rare [10] spe- cies. The name prasinus having been already applied to a dif- ferent species has rendered it necessary to change it. [Belongs to Calleida, and described by Dejean as C. margi- nata. — Leg.] 4. C. PURPUREUS. — Purple or violaceous; antennas, mouth and tibiae black. Length seven-twentieths of an inch. Head obsoletely punctured, deep violaceous ; antennae fuscous, three basal joints rufous, obscure ; trunk deep violaceous ; a lon- gitudinal impressed line, and transverse obsolete rugae ; elytra deep violaceous, obsoletely punctured, and with minutely punc- tured, acute, distant striae ; a line of marginal punctures ; tibiae and tarsi black-brown ; penultimate tarsal joint bilobate ; venter violaceous; tail black. In form and magnitude resembles C. vindipennis, but is more depressed and wider. Brought by Mr. Nuttall from the Mis- souri. [I have referred this species to Glycia Chaud., but have since failed to find sufficiently distinct characters for that genuB to enable me to confirm this reference. The present species be- 1823.] 442 TRANSACTIONS OP THE longs to a genus, which, like Apenea, has the labial palpi rery much dilated, and the clypeus separated from the front by a well defined line ; it difi"ers, however, by the thorax not being pedun- culated at base, but only very slightly rounded, nearly truncate. — Leg.] 5. C. PiLosus. — Black-brown, punctured ; mouth, antennae and feet rufous ; elytra with punctured striae and interstitial lines. Carahm pilosus Melsh. Catalogue. Body somewhat hairy ; head deeply punctured ; no distinct frontal impression ; antennae and mouth rufous ; thorax with nu- merous, profound, approximate punctures, and a longitudinal, impressed line which hardly attains the anterior edge ; elytra with punctured obtuse striae which are subequal to the inter- stitial lines; punctures transverse, dilated, approximated; inter- stitial lines punctured) epipleura rufous, punctured; feet rufous; pectus punctured; venter obscure, rufous, with distant minute punctures. Length two-fifths of an inch. [11] I have not met with a living specimen of this insect : it is rare. Var. a. A longitudinal, rufous, humeral spot ; punctures of the interstitial lines numerous, dilated. In the Philadelphia Mu- seum. Var. /?. Thorax margined with rufous ; a longitudinal, ru- fous, humeral spot. Var. y. Thorax, head, and humeral spots rufous. The thorax of this species seems to vary in the length of its transverse diameter. [Afterwards described as C. puhescens Dej. — Leg.] LEBIA Latr. Bonell. Anterior tibias emarginate ; elytra truncated at tip ; palpi fili- form; terminal joint cylindrical, hardly truncate ; thorax wider than long ; penultimate tarsal joint bilobate ; nails pectinated. 1. L. TRICOLOR. — Head black ; mouth, antennae, thorax and feet ferruginous ; elytra green, polished. Length about three-tenths of an inch. [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 443 Head black, polished; front minutely corrugated; vertex glabrous ; mouth lubrum, and antennae ferruginous or pale tes- taceous ; thorax ferruginous, glabrous, very minutely rugose ; a longitudinal impressed line ; margin depressed and somewhat ciliated ; angles rounded ; beneath ferruginous ; feet, color of the thorax ; scutel color of the thorax ; elytra profoundly striate ; striae impunctured ; interstitial lines convex ; marginal line in- terrupted by punctures from the humerus to the apex ; venter blackish. Length about three-tenths of an inch. [12] Not uncommon in Pennsylvania. Found also by Mr. T. Nut- tall on the INIissouri. The name of Lehias has been more re- cently applied by Cuvier, to designate a genus of fishes. 2. L. viTTATA. — Rufous ; elytra black, with a white fillet and yellowish margin ; feet black. Length rather more than one-fourth of an inch. Winged ; thorax orbicular, rufous ; elytra black, with a white vitta. Fabr. Pyst. Eleut. 1, p. 202, Mus. D. Yeates. Antennce black ; head rufous ; scutel small, rufous ; elytra glabrous, shining black with a longitudinal white fillet in the middle ; body ferru- ginous ; legs black. Turt. Antennae black ; head rufous ; eyes black ; thorax rufous, hardly broader than the head ; scutel rufous ; elytra black, slightly striated ; exterior margin and triangular spot around the scutel rufous ; a longitudinal white line on each ; beneath fulvous ; feet black with half of the thighs rufous. (Length of figure one-fourth of an inch.) Oliv. 3, p. 98, pi. 6, fig. 69, a, b. Body impunctured, nearly destitute of hairs ; head rufous ; antennae black-brown, rufous at base ; palpi black ; trunk rufous, glabrous ; thorax with an impressed longitudinal line ; elytra with acute distant striae ; two parallel black vittje, — the outer one originating on the humerus and abbreviated near the middle of the tip, — inner one originating at the middle of the base, becomes common before the middle of the suture, and is abbreviated near the inner angle of the tip ; an elongated common whitish triangle at base, a white vitta on the middle, and a pale rufous margin and tip ; feet black; nails pectinated ; coxse rufous; venter ru- fous. Var. «. Color of the outer margin extended round the base to 1823.] 444 TRANSACTIONS OP THE the scutel, thiglis rufous at base, common black vitta continued to the tip. If the figure given by Olivier be correct, the specimens [13] here described must be considered a variety. Several individuals were brought from the Missouri by Mr. Nuttall. They are occasionally taken in Pennsylvania, on flowers. When recent, it is of a much more bright red than when long preserved in the cabinet. The red becomes pale and the white vitta yellowish. Caught in Mr. R. Haines's garden, Grermantown. 3. L. ATRiVENTRis. — Ferruginous ; elytra deep purple ; venter black. Length one-fourth of an inch. Body impunctured, naked or with very few hairs ; antennae brown, three first joints ferruginous; palpi blackish; thorax, disk convex ; margin towards the hind angles depressed, hind angles rounded ; a longitudinal impressed line ; elytra deep blue, with acute, distant, not deeply impressed striae, a series of punc- tures on the external margin from the humerus to the middle of the tip ; punctures more distant on the middle of the margin ,' nails pectinated ; venter black. Found under stones, &c. 4. L. ORNATA. — Rufous ; head and elytra black ; the latter with a yellowish edge and four spots. Carabus 4-notatus Melsh. Catal. Length, male one-fifth — female one-fourth of an inch. Body impunctured and almost destitute of hairs ; head black ; three basal joints of autennse rufous ; trunk rufous, paler beneath ; thorax with an obsolete longitudinal impressed line ; disk some- what convex ; margin depressed ; feet pale ; nails pectinated ; elytra striated ; striae acute, distant ; two large subtriaugular or subovate spots near the base ; two smaller ones near the tip ; and outer edge yellow; [14] venter pale yellow or reddish-brown. Var. a. The two basal spots of the elytra wanting. Var. /J. Head corrugated. Probably a distinct species. This species varies in the form of the basal spots, which are sometimes elongated or confluent with the margin, and either ab- breviated or attaining the base. The posterior spots also occur enlarged, so as to be confluent with the apical margin. It [Vol. II. AMERICAN PHILOSOPHICAL SOCIETY. 445 strongly resembles Dromius A-maculatus, but the venter is not black, and the spots of the elytra are differently formed. On flowers, (the blossom of the blackberry, &c.) in May, June, July and August. Not uncommon. The name 4i-notatus has already been made use of in this genus ; I have therefore been compelled to change it. [The species afterwards described by Dejean as L. analis is subsequently claimed as this species, and it is certain that varie- ties at and 0 are so correctly referred : with regard to the type, however, I believe that Say has described L. axillaris Dej.,thus confounding these two very distinct species. — Lec] 5. L. viRiDis. — Green, polished, immaculate ; antennse, palpi and feet black. Length upwards of one-fifth of an inch. Body impunctured, nearly destitute of hairs; head green, with a few obsolete punctures ; antennae black-brown ; labrum and palpi blackish ; nasus cupreous ; trunk green polished, beneath darker ; thorax with an impressed line ; elytra obsolete ', striae distant, acute ; outer margin punctured ; a single punc- ture near the inner tip; feet black; nails pectinated; venter blackish-green. Var. a. Dark purplish blue ; striae of the elytra indistinct, beneath purple-black ; antennae black. Very common on flowers. The thorax and elytra, when ex- amined by a high magnifier, are granulated. 6. L. PLATICOLLIS. — Kufous ; elytra black-brown edged with rufous ; margin of the thorax depressed. [15] Length nearly two-fifths of an inch. Head dark rufous, tips of the mandibles and eyes black ; tho- rax rufous, impunctured, rather wider than long, widest befoFC the middle, somewhat narrowed behind ; hind angles very obtuse ; margin depressed ; dorsal line slightly impressed ; basal lines obsolete ; elytra blackish-brown, with a pale rufous edge ; striae acute ; interstitial lines flat ; feet testaceous ; venter dusky, blackish towards the tip, and on the tips of the segments. Var. a. A humeral, submarginal, pale rufous, longitudinal spot ; disk of the thorax dark rufous, margin pale. Museum of Mr. Peale. 1823.] 446 TRANSACTIONS OF THE This species is perhaps a Dromia, \_Dromius.'] ("Afterwards described as Gymindis complanata Dej. ; it belongs to the genus Pinacodera Schaum, Ins. Deutschl. 1, 294. — Lec] GALERITA Fabr. Anterior tibia emarginate ; elytra truncate at tip ; palpi secu- riform ; tongue exserted, coriaceous in the middle, membranace- ous each side, and pointed at tip ; neck distinct ; penultimate tarsal joint bilobate. Gr. AMERICANA. — Black J thorax and feet ferruginous ; elytra black-blue. G. americana black ; thorax ferruginous ; elytra azure. Fab. [Syst. Eleut. 2, p. 214. Latr. Regne Animal. Carabus Janus Fab. Syst. Eleut. 1. 136, 51. Carabus bicolor Drury Ent. 1, tab. 42, fig. 2. Zuphium americanum Lamarck, An. San. Vert., Vol. 4, p. 505. Antennae reddish, filiform, a little longer than half the body ; head black, advanced ; thorax narrow, subcordate, reddish ; elytra black or blueish black, striated ; beneath black ; feet reddish, long. N. Amer. Cab. of M. Gigot d'Orcy, Oliv. 3, p. 63, t. 6, f. 72. Galerita americana Edinb. Encyc. Length three-fourths of an inch. [16] Body with very short dense hairs ; head black ; front with two indented lines ; vertex with an obsolete rufous spot ; antennje testaceous; second, third, fourth, and tip of the first joints black ; palpi testaceous ; thorax and feet ferruginous ; elytra black-blue opake ; about eight distant, acute, impunctured strias. Very common under stones, &c. in various parts of the United States, and in Florida. Found also by Mr. Nuttall on the Missouri. [6^. Jamis is the name now adopted for this species. — Leg.] ODACANTHA Fabr. Anterior tibiae emarginate ; elytra truncated at tip ; head at- tenuated behind ; palpi filiform ; tongue exserted, coriaceous in the middle, and membranaceous each side. 1. 0. PENSYLVANICA. — Black ; elytra rufous with punc- tured striae at the base ; marginal spot, sutural spot and tip black. [Vol. M. AMERICAN PHILOSOPHICAL SOCIETY. 447 Agra pensylvanica'Edmh. Encyc. Drypta pensylvanica Lamarck, An. San. Vert. 4, p. 505. Body with a few distant hairs ; head black, destitute of punc- tures, polished; antennae, four basal joints rufous; thorax black, with excavated punctures each side, which disappear near the tips, a longitudinal impressed line each side above; feet pale testaceous; knees dusky or black; tarsi, penultimate joint entire ; elytra rufous, striate with punctures which are obsolete behind the middle ; a large, common, longitudinally oblong-oval black spot on the middle, and a common, transverse, terminal larger one, which is connected by the black hind [17] margin with a spot on the middle of the margin, which is also generaUy connected with the common middle one ; venter glabrous, black, often with a slight testaceous shade before. Not uncommon beneath stones, &c. Found also by Mr. T. Nuttall on the Missouri. It has been referred to the genus Agra, but the palpi are decidedly those of Odacantha as de- scribed by M. Latreille. [Belongs to Casnonia. — Lec] 2. 0. DORSALis. — Head black ; thorax rufous ; elytra testa- ceous ; suture black. _ Length three-tenths of an inch. 0. dorsalis Fabr. Syst. Eleut. 1, p. 239. Head black ; clypeus, labrum, mouth, and antennae rufous. Thorax cylindrical, somewhat contracted before the base, punc- tured; punctures numerous, minute, sparse or wanting on the disk; a longitudinal dorsal impressed line, and an obsolete, dilated, dusky vitta on each side ; elytra yellowish-white, striate ; striae regularly and distinctly punctured; a common blackish sutural line, dilated before the tip ; pectus pale rufous ; feet testa- ceous, tarsi, penultimate joint bilobate ; venter blackish. Inhabits the Southern States. This ought unqestionably to form a distinct genus from that of the preceding species. [Belongs to Leptotrachelus. — Leo.] 1823.] 448 TRANSACTIONS OP THE SCAEITES Fab. Anterior tibia emarginate and crenate ; elytra entire ; antenna) short, tbird and fourth joints moniliform, subequal; labrum short, dentated ; mandibles elongated, dentate ; palpi filiform ; tongue dilated, very short, emarginate at tip ; thorax rounded behind ; body subcylindrical. [18] S. SUBTERRANEUS. — Black, immaculate; head bisulcate before; elytra striated ; feet, second pair, with two permanent spines on the tibiae. Length about nine-tenths of an inch. Black; anterior feet digitated ; head sulcated before ; elytra striated ; striae smootii. Fabr. Syst. Eleut. I., p. 124. Carahus interruptus Fuess. Arch. 161, t. 29, f. 4. Black ; head with two longitudinal impressions ; elytra striated. Oliv. 3, p. 8, pi. 1, fig. 10. Head with two indented parallel lines before, half the length of the head ; mandibles profoundly canaliculate above, teeth above striated ; antennas attaining the base of the anterior feet, ferrugin- ous, darker at base ; labium subcarinate on the middle, with a double impression at base ; gula with an impressed line which is furcate before. Trunk somewhat scabrous each side beneath ; thorax, a longitudinal impressed line and a transverse anterior one ; posterior edge emarginate ; feet, second pair, armed with two permanent prominent spines, on the outer edge below the middle, of which the inferior one is larger; elytra distinctly and rather strongly striated ; striae impunctured ; margin scabrous ; epipleura glabrous ; humerus carinated before, carina terminating abruptly in an angle. Very common in almost every part of North America. PASIMACHUS Bonell. Latr. Anterior tibia emarginate and crenate ; elytra entire ; antenna3 short, third and fourth joints not moniliform ; labrum dentated ; mandibles strongly dentate ; palpi filiform ; tongue dilated, very short, and emarginate ; thorax subcordate, truncate behind ; body dilated, depressed. [19] 1823.] AMERICAN PHILOSOPHICAL SOCIETY. 449 1. P. DEPRESSUS black, glabrous ; thorax and elytra margined with purple ; elytra perfectly smooth. Length eleven-tenths of an inch. Carabus depressus Melsh. Catal. Scarites depressus, thorax subquadrate, black ; elytra glabrous. Fabr. Syst. Eleut., p. 123. Scarites depressus, antennje black, ob scure at tip ; head with two impressed lines before ; thorax with a longitudinal impressed line ; borders sometimes black-blue; tarsi black brown. Oliv. 3, No. 36, p. 5, t. 2, f. 15. Body glabrous, black, impunctured ; head transverse quadrate, with two indented longitudinal lines more than half its length j antennas black-brownish at tip ; first joint black; lab rum unequal ; mandibles as long as the head, strongly dentate in the middle ; tooth in the left one double ; thorax with an impressed line and two indentations near the base ; exterior margin purple ; excurved near the base ; elytra glabrous, perfectly smooth ; outer margin purple, with a line of elevated granules ; tarsi black-brown. Var. a. Less dilated ; margins blue ; elytra smooth, with a slight appearance of lines ; sternum striated at tip. From the Missouri. . Cabinet ofNuttall. This fine large insect is of frequent occurrence in the United States beneath old logs, stones, &c., and is very probably the same as the depressus of Cayenne ; to which country authors have referred this species. [Var. a is a distinct species, afterwards described by me as P. elongatus. — Lec] 2. P. SUBSULCATUS. — Black, glabrous ; thorax and elytra mar- gined with bluish purple ; elytra with obsolete lines. Length four-fifths of an inch. Body black, impunctured; [20] head impressed, frontal lines profound ; antennae with ferruginous hairs toward the tip ; thorax margined with blue-purple, slightly contracted behind ; edge near the posterior angles slightly excurved ; dorsal and basal lines very distinct; elytra with broad shallow sulcations ; with (in some parts] obsolete rudiments of punctures; interstitial lines slightly elevated, 1823.] 29 460 TRANSACTIONS OP THE convex, obtuse; margin blued-purple, with a regular series of minute, elevated, ocellate granules. I found several specimens of this insect in Georgia and Florida. It is sufficiently distinct from the preceding ; being smaller, more of an oval form, the thorax less contracted at the base, and the elytra subsulcate ; the lateral edge also is excurved at the base, which character distinguishes it at once from the marginatus of Fabr. and the .sw6Zasi)isof Palisot. IIow closely it may correspond with the sulcatus of Macleay I am unable to determine, not having yet seen his work. I have to regret the circumstance of my not having it in my power to refer to M. Palisot de Beauvois's splendid work on the insects of Africa and America. The seventh number only, belong- ing to the library of the Philadelphia Museum, has yet met my eye ; although I have made several attempts to procure an entire copy of the work from Paris. CLIVINA Latr. Anterior tibiae emarginate and crenate ; elytra entire ; labrum entire ; mandibles with obsolete teeth ; tongue prominent, mem- branaceous each side ; thorax rounded. 1. C. BIPUSTULATA. — Black ; thorax impunctured ; elytra with punctured striae, and a large obscure rufous spot near the tip and at the base of each. Length three-tenths of an inch. [21 J Scarites bipustulatus ? black ; elytra striated ; a large ferruginous spot behind. Fabr. 1. p. 125. Scariies bipustulatus, Melsh. Catal. Scarites A-maculatus Palisot de Beauvois. Body blackish ; beneath piceous : head somewhat unequal before J antennae and palpi reddish-brown; thorax black, impunc- tured; a longitudinal impressed line joining a transverse angu- lated one before ; lateral carinated edge abbreviated and recurved at the tip ; elytra brown-black, strongly striated ; striae nearly equal to the intermediate lines and punctured, punctures exca- vated ; a large obsolete spot at the base, and a large and more distinct spot near the tips of each, rufous ; epipleura with large and profound punctures at base. [Vol. IT. AMERICAN PHILOSOPHICAL SOCIETY. 451 A large species by no means common. I think it highly prob- able that the 4-mon Amer. Philos. Soc. — This species has been referred to this geaus by Dejean ; the palpi are not sufficiently securiform for Epomis. 3. C, CIRCUMCINCTUS. — Green, tinged with violaceous j edges rufous. Inhabits L<»uisiana, Body green, more or less tinged with vi^jlaceous and brassy, punctured ; head minutely and confluently punctured ; in the middle tinged with bronze ; lateral edges dark purplish ; anten- nae reddish brown, three basal joints pale yellow with rufous in- cisures J labrum and mandibles honey yellow ; the latter black at tip ; palpi yellow ; terminal joints honey yellow ', thorax deep- ly punctured, sparse near the anterior angles, and almost want- ing each side of the middle; dorsal Jine acute, almost obsolete j basal lines widely indented ; lateral edge regularly arquated ; dull rufous ; basal edge rectilinear in the middle and a little ob- lique each side, making the angles rather more than rectangular j green a little tinged with brassy ; scutel dark purplish ; elytra with profound, obsoletely punctured striae; interstitial spaces flattened, punctuated, [419] sericeous ; rather dull green with a slight violaceous reflection ; exterior and apical edge dull ru- fous ; beneath black ; feet yellow, Joints a little rufous ; venter on the margin yellowish. For this pretty species I am indebted to Mr. J, Barabino of New Orleans. [Afterwards described as C. virens Chaud. — Leg.] 4. C. VIGILANS. — Head and thorax brassy ; antennae at base and feet ferruginous ; elytra violaceous. Inhabits Mexico, Pubescent ; head impunctured, brassy-green, polished ; two ob- solete indentations between the antennas ; labrum transverse!/ narrow, truncated, and with the palpi dull rufo-ferruginous ; antennae fuscous, pubescent, three basal joints subglabrous, rufo- 1834.] 5g2 TRANSACTIONS OF THE ferrno'Tious; thorax brassy-green, with rather dense, very short hair poh'shed ; dorsal and hasal impreg«ed lines distinct ; pos- terior angles not excurved, but obtusely angalated, almost rounded ; elytra bluish violaceous, with punctured strise ; intei- gtitial spaces pubescent, depressed, and minutely granulated, beneath blackish ; feet rufo-ferruginous. Length half an inch. Much like C- nemoraUs Say, but the antennae of that species are entirely rufoferruginous, its posterior thoracic angles are slightly excurved, &c. 5, C. SOCCATUS. — Blackish; feet ferruginous with blackish tarsi and joints. Inhabits Mexico. Body blackish, with a slight violaceous tinge; sninutely pubes- cent, punctured; head blued-black, glabrous, two slight indenta- tions between the antennae, aad an obsolete transverse one be- tween the eyes ; antennae pubescent, blackish, three basal joints dark pieeous ; palpi piceous ; thorax short ; lateral margin regu- larly arquated ; posterior angles rounded ; impressed lines dilated ; elytra with punctured striae ; interstitial spaees minutely granu- lated, depressed ; beneath blaekish ; feet rufo-ferruginous, joints and tarsi blackish-piceous. Length nearly half aa inch. Resembles vigUans Nob., but the thorax is shorter and the lateral curvature is more regular, that of the preceding species being almost rectilinear from near the middle to the posterior angles ; the colors also are different in their arrangement. [420] Of this genus I have sixteen North American described species, OODES Bonel. 0.? PAHALLELUS. — Black; thoracic angles rufous; feet pi- ceous. Inhabits Louisiana. Body black, very slightly tinged with piceous ; head with but a slif'htly impressed point between the antennae ; antennae red- dish brown, three basal joints honey yellow ; palpi honey yellow ; mandibles piceous ; thorax narrowed before, smooth, dorsal line [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 533 distinct, not extended on the margins; basal lines distinct, ob- lique; region of the posterior angles a little, but widely, depressed, rufous or sanguineous, and by transmitted light it appears reti- culated; impunctured ; posterior angles rounded, but not ob- tusely so; greatest width a little behind the midle; elytra with the striae continued parallel to the tip, well impressed, minutely punctured; interstitial spaces depressed, third with a single slight puncture on the posterior fifth from the base ; beneath black ; posterior angles of the pectus, epipleura and feet piceous ; anterior tarsi with four not widely dilated subquadrate joints, the fourth joint being as large as the third, and all beneath with dense fastigiate hairs ; intermediate tarsi also somewhat dilated. Length less than two-fifths of an inch. The elytra are hardly perceptibly sinuous near the tip. The speciiuen, for which I am indebted to Mr. J. Barabino of New Orleans, is a doubtful congener of the 0. hehpoidts Fabr., than which the body is somewhat more elongated, the thorax more gradually narrowed before. It has at first sight more the appearance of the Harpalus terrtiinatus ox Calaihus gregarius Say. The intermediate tarsi are somewhat dilated, the anterior tarsi are not widely dilated and the terminal joint is as large as the preceding one. I place it in this genus provisionally, more speci- mens may show this arrangement to be incorrect. The parallel- ism of the striae of the elytra to their termination is a remarka- ble character, even more obvious than in the helopoides. [The type of Lachnocrepis Lee. Trans. Amer. Phil. Soc. 10, 391.— Lec] [421] DIC^LUS Bonelli. 1. D. PURPURATUS Bonelli. — Since described by Dejean under the name of chaJyhseus Sp. Gen. 2. 2. D. ELONGATUS Bonelli Say, Trans. Amer. Philos. Soc. — Dejean is of the opinion that this is not the elongatus of Bonelli, and has described it with the name o^ ficrv us, hut he has not stated the reasons for this opinion. \_D. furvus Dej. is totally distinct from D. elongatus: it is allied to, and perhaps identical with D. ovalis Lec. — Lec] 1834.] 534 TRANSACTIONS OF THE POGONUS Zeigl. p. RECTUS Say, (Feronia) Trans. Amer. Philos. Soc. — I may add to the description that the striae are well impressed and punc- tured rather densely on the sides ; third interstitial line with about three punctures, excepting the middle one, hardly distinct from the punctures of the striae. [Belongs to Loxandrus ; the anterior tarsi of the male are ob- liquely dilated, which accounts for the error of Say in referring it to Pogonus. — ^Lec.} PATROBUS Meg- P. LONGICORNIS Say, (Feronia) Trans. Amer. Philos. Soc. — Recently described by Dejean under the name of amcricanus, Sp. Gen. 3, p. 34. Why he has added a synonym in this case, I know not. ANCHOMENUS Bonelli. 1. A. DECENTis Say, (Feronia) Trans. Amer. Philos. Soc. — Has been recently described by Dejean under the name of ga- gates. 2. A. ciNCTicoLLis Say, (Feronia) Trans. Amer. Philos. Soc. — Since described by Germar under the name of blandus, Sp. Novae, p. 12, and recently by Dejean by the name of co/twws Sp. Gen..3, p. 109. 3. A. EXTENSicoLLis Say, (Feronia) Trans. Amer. Philos. Soc, is also referred by Dejean to this genus. 4. A. DECORUS Say, (Feronia) Trans. Amer. Philos. Soc. is also refered to this genus by Dejean. 5. A. coLLARis. — Black with a hardly obvious tinge of pur- ple ; tibise and tarsi piceous ; thorax subquadrate ; elytra with three punctures on the third interstitial line. Inhabits Indiana. Body black, polished, glabrous, with a few, rather long, marginal [422] hairs ; head impunctured ; base of the first joint of the antennae, of the mandibles black-piceous ; antennae at tip brownish, third joint of the same length as the fourth ; [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 535 impressions between the eyes rather deep ; thorax rather short, wider than long, subquadrate, impunctured ; lateral edge regu- larly curved ; margin slightly elevated, narrow, broader towards the posterior angles ; dorsal and anterior lines distinct ; posterior lines dilated, suborbicular, slightly rugous ; posterior angles verj- obtuse ; anterior and posterior margins subequally broad ; elytra with acutely impressed striae, regularly punctured; punctures small, obsolete towards the tip ; third interstitial line with three punctures, two at the third striaj and the terminal one at the second striae; interstitial lines much depressed; tibiae, tarsi, knees and extreme base of the thighs piceous. Lepgth seven-twentieths of an inch. This species is rather more robust in proportion to its length than the other American species. The thorax is much broader and shorter. The species is .perhaps more like scitteUaris Say, than any other ; that insect is remarkably depressed about the region of the scutel. AGONUM Bonelli. 1. A. SUTURALE. — Green, polished ; suture cupreous. Inhabits Mexico. Above metallic green, polished, impunctured ; head with a slight coppery reflection ; labrum, antennae and palpi blackish : thorax varied with cupreous; dorsal line and basal dots obviously indented ; elytra with very slender strias ; interstitial spaces wide and plain, first one cupreous, third with three punctures, equidis- tant, basal one on the third striae, middle one on the second strife ; beneath piceous black ; coxae piceous. Length three-tenths of an inch. This is a brilliant species, equalling in this respect the ^-punc- tatum Fabr., and errans nob. and but little inferior to cupripenne nob., all of which, together with nutans nob., belonging to this genus, although I referred them to the including genus Feronia, Latr. The cupripenne nob., is equal in splendor, though not in magnitude, to the Q-punctatum Fabr. In comparison with parum- punctatum F., the form is more robust, thorax more brilliant, wider, and is as wide at base as anteriorly ; the interstitial spaces also are much more flattened. [423] 1834.] 536 TRANSACTIONS OF THE 2. A. ORBICOLLIS. — Black ; thorax rounded ; third interstitial line with three punctures. Inhabits Mexico. Body black, polished, impunctured ; antennae , basal joint and palpi piceous ; thorax orbicular, truncate before and slightly so behind; lateral edge regularly arquated, not depressed, but with a simple and equally elevated edge; dorsal line obsolete, anterior and posterior transverse lines obsolete ; basal impressed lines or dots distinct ; elytra with well impressed striae, which are crenate, not punctured ; interstitial lines convex, the third from the suture with three equidistant punctures ; feet piceous ; Length nearly seven- twentieths of an inch. Size of A. viduum Fabr., with the similar punctures on the third interstitial line, excepting that they are equidistant, and these lines are more convex, the thorax is much more orbicular, the feet diflferently colored, and there is no brassy reflection. This cannot be the melanarium Dej., for the striae are as obvious as in the viduum, and although the thorax agrees with that insect in being " plus etroit " than that of the viduum, yet it would not be described as " subrotundato," as that author ap- plies the same term to designate the form of the thorax of vidmim. It is much like A. punctifornie Say, but it is a little more elon- gated, the thoracic lines are much less distinct, &c. 3. A. NUTANS Say, (Feronia) Trans. Amer. Philos. Soc. — Since described by Dejean with the name of striatopunctahim. 4. A. ERRANS Say, (Feronia) Journ. Acad. Nat. Sci. — The in- terstitial space has three punctures, of which the first and second are somewhat nearer than the second and third. 5. A. PUNCTIFORME Say, (Feronia) Trans. Amer. Philos. Soc. I have an individual that has four punctures on the third inter- stitial space, as Dejean describes his alhicrus to have. 6. A. OBSOLETUM Say, (Feronia) Trans. Amer. Philos. Soc. Since described by Dejean by the name of luctuosum, Sp. Gen. 3, 172. 7. A. LIMBATUM Say, (Feronia) Trans. Amer. Philos. Soc. Since described by Dejean by the name of palliatum, Sp. Gen. 3,174. [424] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 537 OLISTHOPUS Dejean. 1. 0. PARMATUS Say, (Feronia) Trans. Amer. Philos. Soc. Dej. Sp. Gen. 3, p. 181. 2. O. ciNCTUS. — Blackish; edge of the thorax, elytra and feet dull rufous. Inhabits Pennsylvania. Body blackish ; head impunctured ; antennae dusky, pale rufous at base ; palpi piceous ; thorax with the dorsal and anterior lines almost obsolete ; lateral narrow margin obviously rufous ; lateral basal impressions very distinct, suborbicular and sparsely punc- tured : elytra dull reddish brown, with a slight perlaceous re- flection; striae well indented, impunctured; interstitial spaces depressed, third space with an impressed puncture beyond the middle ; feet yellowish piceous, posterior pair darker. Length less than three-tenths of an inch. Much like the parmatus Say. It is more slender. [A specimen was given me by Dr. Melsheimer ; not different from 0. parmatus. — Leg.] FERONIA Latr. Dej. PcECiLus Bon. 1. F. CONVEXICOLLIS Say. — Resembles F. chalcifes Say, but is shorter, the thorax more convex, and the punctures of the third interstitial stria of the elytra are three, of which the terminal one is near the tip. Steropus Meg. 2. F. OBSOLETA. — Blackish-ferruginous; elytra, strise obsolete each side and at tip. Inhabits Indiana. Body very dark rufous, polished ; labrum, palpi, mandibles at base, antennae, feet and abdomen honey-yellow ; head impunc- tured ; a slightly raised line over the antennae, inside of which the front is slightly corrugated transversely each side ; thorax with the surface obsoletely corrugated, visible in a particular direc- tion ; dorsal line acute, slightly impressed ; basal lines indented, single, viewed from above orbicular, definitely and rather deeply 1834.] 538 TRANSACTIONS OF THE impressed ; base a little emarginate, not wider than the abdomi- nal i^etiole ; elytra with punctured^ not deeply impressed striae, obsolete at tip and on each side ; marginal ocellate punctures about seventeen, in a continuous series rather sparse in the mid- dle : near the tip very slightly sinuated ; third interstitial space with a puncture [425] near the middle of the second stria. Length two-fifths of an inch. Closely allied to iS. llligeri Panz., but the thorax of that spe- cies is not so narrow at base, and itselytral striae are not obsolete at tip, and not even decidedly so on the sides. It is excedingly like S. ventraUs N., but it is more robust, and the sides of the elytra are more arquated. The characters of this species agree very well with the descrip- tion of tenebricosa Dej., excepting that the elytra are not " assez fortement sinuees posterieurement." 3. F. OBSCURA. — Black; tibias and tarsi dark rufous; elytral striae obsolete on each side. Inhabits Indiana. Body black ; labrum and base of mandibles tinged with rufous ; palpi dull honey-yellow ; antennae blackish ferruginous ; front with two indented lines ; head impunctured ; thorax not so nar- row at base as the petiole ; dorsal line acute, not deeply im- pressed ; basal lines well indented, definite, impunctured, not or- bicular, viewed in any direction, very slightly arquated ; elytra striate; the stride not distinctly punctured, obsolete on the lateral submargin, and not so obvious at tip as on the disk ; marginal ocellated punctures about seventeen ; near the tip rather slightly sinuate ; third interstitial tripunctured, the two anterior punc- tures at the third stria. Length less than nine-twentieths of an inch. Resembles the preceding, but the thorax at base is wider, and the body is longer. In the proportion of the base of the thorax it corresponds with F. llligeri Panz., but aside from color, it may be distinguished from the obsolete lateral striae, the much less dilated thoracic basal lines, &c. [Vol. lY 0 AMERICAN PHILOSOPHICAL SOCIETY. 539 Platysma Sturm. Dej. 4. F. OBLONGONOTATA. — Dark reddish-ferruginous ; elytra with five or six large subsutural punctures. Inhabits North West Territory. Body with a hardly perceptible metallic gloss ; head darker ; thorax with the dorsal line very distinct ; lateral basal lines well indented and with obsolete confluent punctures; posterior angles angulated; elytra striated; five or six large indented punctures placed somewhat [426] alternately on the second and third striae ; marginal ocellate punctures with their regions indented. Length nine-twentieths of an inch. This is the analogue of the F. ohlongopunctata F., correspond- ing in the punctures of the elytra, but difi'ering in color, and liaving the thorax somewhat more robust. 5. F. deparca. — Reddish-brown ; thorax punctured on the anterior and posterior margins. Inhabits Mexico. Body reddish-brown, rather pale ; head much darker, tinged with blaekish, impunctured; antennae short, not reaching the base of the thorax ; thorax rather abruptly contracted behind ; anterior and posterior margins deeply punctured, the punctures of the former not extending to the lateral margin ; lateral mar- gin with a puncture furnishing a hair on the middle and another on the posterior angles, which are rectangular ; dorsal line dis- tinct, but not deeply impressed ; basal impressions dilated, and with all the base punctured ; elytra with slender striffi, not deeply impressed, but with very distinct punctures ; stria obsolete to- wards the tip ; epipleura and all beneath paler. Length nearly half an inch. The light color, with the punctured anterior and posterior thoracic margins, will distinguish this species. It was taken by William Bennett and presented to me by Mr. Maclure. Abax Bonelli. 6. A. CORACINUS Say, Trans. Amer. Philos. Soc. — I think this is the insect that Dej can has recently placed in Ziegler's genus 1834.] 540 TRANSACTIONS OF THE MyaSjSind described under the name of of ci/anescens ; tlie insect agrees perfectly with his description, but as the palpi of my only remaining specimen are deficient, I cannot be certain of its ge- neric identity. 7. F. [A.] PERMUNDA. — Black, with a perlaceous reflection ; third interstitial line three-punctured. Inhabits Indiana. Body black; antennae piceous, dull honey-yellow towards the tip; distinctly compressed; joints, in profile a little narrowed to the base ; palpi piceous, not at all securiform, terminal joint less dilated at tip than that of the preceding joint ; thorax with a slight perlaceous reflection, rather narrower at tip than at base ; lateral margin depressed, [427] punctured, gradually reflected to the edge, which is but little arquated ; posterior angles rect- angular ; disk impunctured ; dorsal line well indented ; basal lines two on each side, punctured within, deeply impressed, the ex- terior one very short; elytra brownish-black, somewhat irides- cently pearlaceous ; striae deeply indented, impunctured ; scutel- lar striae short, but definite ; interstitial spaces convex ; third three-punctured, first puncture near the base on the third stria, second on the middle on the second stria, third towards the tip, also on the second stria ; beneath piceous ; sides very distinctly and numerously punctured. Length half an inch. I obtained this fine species a few days since under an old log. It does not at all agree with either of the descriptions of Dejean. The labrum is not emarginate. The terminal joint of the palpi is less dilated towards the tip than that of the A. parallelus Duftschm., or A. mctallicus Fabr. MoLOPS Bonelli. 8. F. CONSTRICTA Say, Journ. Acad. Nat. Sciences. STOMIS Clairv., Dej. S. GRANULATUS. — Black, antennae dull rufous, blackish piceous towards the base. Inhabits Mexico. Body black, apterous, polished ; head impunctured ; impressed lines between the antennae very obvious ; antennae blackish-pi- [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 541 ceous to the fifth joint, which with the others are dull rufous ; first joint hardly as long as the third j labrum a little prominent, piceous, widely but not deeply etuarginated before ; palpi dull rufous, not very widely truncated at tip ; labial not securiform ; mandibles prominent, very acute ; thorax as long as broad, not remarkably convex ; impunctured ; dorsal line distinct, not ex- tending to the base, which is a little depressed ; lateral margin depressed and reflected, narrow, wider near the posterior angles, which are somewhat acute ; lateral edge excurved near the pos- terior angle ; basal lines distinctly indented and dilated ; base considerably wider than the peduncle ; elytra somewhat de- pressed, ovate-oval ; surface composed of very minute granules ; striae slender, deeply impressed, impunctured ; third interstitial space with three nearly [428] equidistant punctures, the termi- nal one much the largest, with minute elevated centres ; tip very obtusely sinuous ; tarsi dull rufous. Length less than two-fifths of an inch. Taken by William Bennett, during his stay in Mexico with Mr. Maclure. It will be obvious from this description, that our species does not well correspond with the S.jynmicatus, Panz., but agreeably to the tables given by Dejean it cannot be placed elsewhere. It is larger and more dilated than pumicatus, the basal joint of the antennae is shorter, the palpi are not so obtusely truncated, and its habit and appearance quite difi"erent. PELOR Bonelli. P. AVIDUS Say, (Zabrus) Journ. Acad. Nat. Sc. [Ante, 95.] AMARA Bonelli. In my paper on the CaraSici and Mydrocanthari, published in the Trans. Amer. Philos. Soc. vol. 2, new series, as above quoted, I described five species of the United States, under the genus Feronia, agreeably to the arrangement of Latreille, indicating, however, at the same time, that they belonged to Bonelli's Amara. But Dejean and many other distinguished entomologists give the group a separate station. 1. A. MUSCULis Say, (Feronia) Trans. Amer. Philos. Soc. — Dej. Sp. Gen. 3, 477. 1834.] 542 TRANSACTIONS OP THE 2. A- BASILLARIS Say, (Feronia) Trans. Amer. Philos. Soc. 3. A. IMPUNCTICOLLIS Say, (Feronia) Trans. Amer. Philos. goc. — Dejean thinks it the same as A. trivialis, Duftschm., but I have not yet compared it. 4. A. ANGUSTATA Say, (Feronia) Trans. Amer. Philos. Soc. 5. A. OBESA Say, (Feronia) Trans. Amer. Philos. Soc. 6. A. IMPUNCTATA Say, (Feronia) Trans. Amer. Philos. Soc. — Dejean thinks it the same as the familiar is, Duftschm., but I have not satisfactorily compared them. The following species appear to be new : [429] 7. A. DOLOSA. — Black; oblique line near the thoracic angle obviously impressed ; elytra with impunctured striae. Inhabits Mexico. Body black, impunctured ; head with the impressed lines be- tween the antennse absolete ; antennas fuscous, joints rather short, three basal joints honey-yellow ; palpi black piceous, thorax rather short, lines not deeply impressed ; oblique line near the posterior angles very distinct; hair of the lateral margin situated at one- .third of the distance between the anterior and posterior angles, another hair at the basal angle ; elytra with impunctured capillary striae : interstitial lines depressed, hardly convex ; feet piceous- black ; tibiae and tarsi a little paler. Length nearly three-tenths of an inch. Resembles A. impuncticollis, nob., and A. communis and vul- qaris Fabr., but differs from all in color, greater brevity of the thorax, more robust form, &c. Viewed in a particular light, a tint of blue may be, with some difficulty, detected. 8. A. SERA. — Greenish black ; three basal joints of the anten- nae yellowish. Inhabits Mexico. Antennas fuscous; first, second, third and base of the fourth joints yellowish ; thorax impunctured, basal angles rectangular, with the oblique line not deeply impressed ; basal lines rather deep, abbreviated, definite, impunctured; dorsal line distinct; elytra with the strise impunctured, acutely impressed ; basal ab- breviated striae rather long ; interstitial lines with a very slight [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 543 convexity, nearly flat ; near the lateral tip slightly and rather acutely sinuated ; tibiae and tarsi-piceous. Length three-tenths of an inch. The thorax is longer than that of the preceding species, and the interstitial lines are a little convex, which will readily dis- tinguish it from ^4. impunctuoUis, N. The colors of the antennae .as strongly contrast as those of A. vulgaris F. 9. A. FURTIVA. — Palej thorax punctured at base ; elytra with punctured striae. Inhabits Indiana. Body honey -yellow, more or less tinged with dusky j antennae, palpi and all beneath paler ; head with the frontal impressed lines dilated, distinct j thorax a little contracted at base, the posterior angles slightly excurved and acute ; dorsal line well impressed, particularly behind the [430] middle ; basal lines deeply impressed and definite, punctured ; impressed lines of the posterior angles, distinct and rather deep, punctured ; base punc- tured ; elytra with punctured striae ; the punctures orbicular and close set ; near the tip obtusely, but not deeply sinuated. Length less than two-fifths of an inch. Resembles the A. fidva, 111., particularly in the form of the thorax. The color has sometimes a very slight metallic tinge, but never so obvious as in i\\Q fulva, 10. A.? GROSSA. — Alternate interstitial spaces punctured. Inhabits N. W. Territory. Body short, robust, convex, blackish piceous; head ; thorax convex, descending much each side, transverse, oblong- quadrate ; dorsal line almost obsolete ; anterior transverse line hardly obvious ; basal margin depressed and somewhat rough ; lateral margin depressed, but not elevated except near the poste- rior angles lightly ; elytra with a sinus near the tip ; striae well impressed, impunctured ; interstitial spaces with from five to eight distinct punctures on the third, fifth and seventh spaces ; marginal series of punctures small, almost indistinct. Length of thorax and abdomen nine-twentieths of an inch. This species I found in the north western part of the United States when traversing that country with Major Long's party. It is a remarkable insect, readily distinguishable by the peculiar [Vol. IV. 544 . TRANSACTIONS OF THE puncturing of the elytra. I have two specimens, both of which are mutilated, so that I am not perfectly sure it belongs to this genus. [This is probably Notliopus zahroides Lee. formerly described by me as Euryderus zahroides, but the description is hardly sufficient. — Lec] DAPTUS Dej. D. INCRASSATUS Dcj. — This insect appears to be rare. — I ob- tained an individual in Pennsylvania. It has not yet occurred to me in the western States. [The type of Geopimis Lec. — Lec] CK AT ACANTHUS Dej. C. PENSYLVANicus Dej., is a common insect. — But it is not confined to Pennsylvania, as the name would seem to imply; it is abundant in this state, and I obtained three specimens near the Pvocky Mountains ; [431] these are somewhat smaller than the inhabitants of this vicinity, and of a paler color. PANGUS Zeigl. P. CALIGINOSUS Fabr. — Dejean refers this large species to Pangus, which he makes a division of his genus Selenophorus. ANISODACTYLUS Dej. 1. A. DTLATATUS. — Black; thorax transverse quadrate, not contracted behind; impunctured; first joint of the antennae tes- taceous. Inhabits Mexico. Body black, impunctured ; antennae not reaching the base of the thorax; first joint pale testaceous, second joint darker, re- maining joints blackish; impressed frontal lines very distinct ; thorax without any appearance of puncture, not narrowed behind ; lateral edge regularly arcjuated ; posterior angles rounded ; dorsal line not very obvious ; basal indentations much dilated, not pro- found ; minute longitudinal lines or wrinkles at the middle of the base, and less obvious ones on the anterior margin ; elytra, striae profound, impunctured; interstitial spaces depressed; tip very 1834.] AMERICAN PHILOSOPHICAL SOCIETY. 545 obtusely sinuous; abdomen, terminal and anal segments above punctured. Length less than half an inch. This species is closely allied to the A. cxnus Say, and its form is perhaps still more like that of an Amara in being more obtuse and robust. It is much larger and more rounded behind. It was taken in Mexico by William Bennett, and was presented to me by Mr. Maclure. 2. A. BALTiMORiENSis Say, (Harpalus) Trans. Amer. Philos. Soc. ; Dej. Spec. — A very bad name, as the species is found as well in Indiana as in Baltimore ; but it is a specific name, and therefore unchangeable. 3. A. RUSTicus Say, (Harpalus) Trans. Amer. Philos. Soc; Dej. Spec; A. mendus? Crermar. [^4. mcnda is quite different. — Leg.] 4. A. C.ENUS Say, (Harpalus) Trans. Amer. Philos. Soc ; De- jean Spec. 5. A. AGRICOLUS Say, (Harpalus) Trans. Amer. Philos. Soc ; Dej. Spec [432] 6. A. cARBONARius Say, (Harpalus) Trans. Amer. Phil. Soc 7. A. L.ETUS ? Dej. — An insect is found in this vicinity which I have referred, but very doubtfully, to the Isetus. Its characters correspond to the description, but if it be indeed the same a very important character must be added. My specimen is a male. The alternate interstitial spaces are cupreous, and the remaining part is green. It has a very much dilated, slight indentation behind the middle of the elytra, and a smaller one nearer the tip. OPHONUS, Zeigl. 0. INTERSTITIALIS Say, (Feronia) Trans. Amer. Philos. Soc. Since described by Dej can under the name of Uarpalus ohscuri- pennis. HAEPALUS Latr. 1. H. VULPECULUS Say, Trans. Amer. Philos. Soc. — Since described by Dejean under the name of ni'iji'ijMninis. It differs however from his description, by having an impressed puncture 1834.] 35 546 TRANSACTIONS OF THE on the third elytral stria ; but I have a variety altogether des- titute of the puncture. 2. H. viRiDis Say, Trans. Amer. Philos. Soc. — Subsequently described by Dejean under the name of assimilis. ^ 3. H. MEXICANUS Dej. Sp. Gen. — This appears to be a com- mon species. Mr. Maclure has recently sent me specimens by Wm. Bennett, and I obtained it also in that country. 4. H. IRICOLOR Say, has been recently described by Dejean under the name of dichrous. I obtained a specimen formerly, with a collection I purchased in New York as having been re- ceived from New Haven, and I have since found two in Indiana. [No species of the name cited is to be found in Say's writings. — Leg.] 5. H. terminatus Say, (Ferouia) Trans. Amer. Philos. Soc. Dejean, Sp. Gen., refers this species to the present genus. The anterior pairs of the tarsi of the male are clothed with dense hairs beneath. 6. H. AMPUTATUS. — Elytra greenish, truncate at tip. Inhabits N. W. Territory. Body blackish ; head with the frontal lines rather slightly indented ; antennae, palpi, tibiae and tarsi honey-yellow, the tibise darkest ; thorax with the basal angles rounded ; edge obscure rufous; dorsal line [433] obsolete, or slightly impressed ; basal lines substituted by dilated, slightly indented spaces, in which are numerous small punctures ; posterior lateral margin with small punctures ; basal margin obsolctely tinted with greenish ; elytra with impunctured striae, more or less green, sometimes bright creen J suture, outer and terminal edges obscure rufous; tip widely and somewhat obliquely truncate. Length less than two-fifths of an inch. Var. a. Elytra reddish brown, with hardly any tint of green. Readily distinguished by the truncated appearance of the tip of the elytra, from H. seneus F., which has the elytra decidedly sinuate at tip, and even abruptly so. 7. H. ocreatus.— Black green ; impunctured ; feet pale yel- lowish. Inhabits Mexico. [Vol. IV. 9 AMERICAN PHILOSOPHICAL SOCIETY. 547 Body very dark green, impunetured ; head black, with hardly any appearance of green ; antenna honey-yellow, the joints, ex- cepting the first and second, with darker centres ; palpi and base of the mandibles honey-yellow; labrum with a slight projecting angle in the middle of the emargination ; thorax blackish green, hardly narrower at base ; dorsal line indistinct, but more obvious in the middle ; basal indentations dilated not profound ; lateral edge dull honey-yellow ; posterior angles obtuse ; elytra obviously tinged with green ; a little wider at base than the thorax ; striae very slendei-, impunetured ; interstitial spaces flat, third space with a puncture at three-fourths the length from the base ; lateral edge near the tip and suture near the tip obscurely piceous ; tip deeply and rather obtusely sinuous ; beneath black, the greenish tinge hardly perceptible; feet yellowish; tarsi rather darker; first joint of the anteriors of the male somewhat smaller than the second ; these tarsi have beneath close set hairs. Length over seven-twentieths of an inch. This species has almost the Amara like form of some species of Anisodactylus, in which genus I should have placed the spe- cies but for the angle in the emargination of the mentum. It is very closely allied to ferminafus Say, but is rather more robust, the head and thorax are difierently colored, the posterior lateral margin is more depressed, &c. [434] It must resemble closely ff. agilis Dej., of which it may possibly be a variety. It was obtained by William Bennett, and presented to me by 3Ir. Maclure. STENOLOPHUS Meg., Dej. S. ciNCTUS. — Dark piceous ; margin and suture of the elytra honey-yellow ; feet pale yellow. Inhabits Massachusetts. Body blackish piceous; antennas fuscous, three basal joint.? and labrum honey-yellow ; mandibles piceous, black at tip ; tho- rax rather convex, a little narrowed behind gradually ; base rec- tilinear, each side a little arquated to the posterior angles, which are obvious but almost rounded ; lateral edge but slightly arquated, nearly rectilinear behind the middle, near the posterior angle hardly perceptibly excurved ; dorsal line very distinct 1834.] 548 TRANSACTIONS OP THE anterior transverse line distinct, obtusely arquated ; basal lines so much dilated as to extend to the lateral angle, including a few sparse, profound punctures ; base and tip and exterior edge paler piceous; elytra with inipunctured, deeply indented striae, less profound towards the margin ; rudimental striae none ; sutural interstitial space paler piceous ; dilated exterior margin honey- yellow ; lateral series of punctures, with the exception of a small one, widely interrupted in the middle ; feet pale yellow. Length less than three-twentieths of an inch. For this insect I am indebted to Dr. Harris. On a cursory examination I considered it identical with JS. ochropezus Say, notwithstanding its great inferiority of size, which may at once distinguish it. The thoracic posterior angles are much more ob- tusely rounded in that species, the punctures of the basal lines are much more numerous and extend nearly to the basal middle, the dorsal line is obsolete, &c. [This is a variety of Bradycellus rupestris ante, 505. — Lec] ACUPALPUS Latr., Dej. 1. A. PARTiARius Say, (Trechus) Trans. Amer. Philos. Soc. — Since described by Dejean under the name of testaceus. I have recently received a specimen from Louisiana, for which I am indebted to Mr. J. Barabino. [Ante, 504.] [435] 2. A .CONJUNCTUS Say, (Trechus) Trans. Amer. Philos. Soc. — Since described by Dejean under the name of misellus. 3. A. RUPESTRIS Say, (Trechus) Trans. Amer. Philos. Soc. — Since described by Dejean under the name of tantillus. [Ante, 505.] 4. A. DEBILIPES. — Piceous black ; base of the antennae and feet pale yellowish. Inhabits Indiana. ' Body very dark piceous, almost black ; head impunctured ; between the antennae on each side a dilated very obvious inden- tation ; antennae brown, three basal joints yellowish; mandibles at tip black ; palpi yellowish, rather pale ; thorax widest before the middle, gradually narrowed, by a regular arquation of the edge, to the base; basal angle obtusely rounded; anterior and [Vol. IV. AMERICAN PHILOSOPHICAL SOCIETY. 549 posterior margins oa their middles obviously piceous ; dorsal line well impressed, very distinct, not abbreviated; anterior transverse line obvious in all its length, arquated; basal lines dilated, orbicular, obvious, with a few, small, sparse punctures within or rather near the base; elytra with slender stride; inter- stitial spaces flat, third with a puncture between the middle and tip ; marginal and sutural edges towards their tips piceous ; rudi- mental stria none, but instead of it is a puncture at base of the second stria ; feet pale yellow. Length less than three-twentieths of an inch. (^Unknown to me. — Lec] 5. A. OBSOLETUS. — Dark piceous; striae of the elytra obso- lete. Inhabits Mexico. Body dark piceous, impunctured ; antennae, labrum and palpi honey-yellow ; thorax with pale piceous anterior and basal mar- gins ; lateral margin with eight or nine hairs ; dorsal line almost obsolete ; basal impressions dilated, oval ; elytra with the basal, exterior and apical margins paler piceous ; striae obsolete, except- ing the subsutural and lateral ones ; a series of large punctures behind the middle of the exterior margin ; feet pale honey-yel- low. Length one-fifth of an inch. * [435] BEMBIDIUM Latr. 1. B. IN^QUALE Say, Journ. Acad. Nat. Sc. Vol. 3, p. 151. — Very closely allied to paludosum, Panz., and may possibly be only a variety of that European species, nevertheless it is some- what smaller, the thoracic impressed lines are more distinct, par- ticularly the transverse basal one, and the striae of the elytra are more dilated and the punctures more obvious. As it is the * Count Dejean has done me the favor to send me the four volumes of his "Species des Coleopteres, " which have now been published. This work is indispensable to all those who study the Coleoptera. It contains the descriptions of a great number of North American species, and has greatly facilitated my examination of the insects described in the preceding part of this paper. 1834.] 550 TEANSACTIONS OF THE analogue of pdludosum, it belongs to the genns Bemhidium, as at present restricted. 2. B. HONESTUM Say, Trans. Amer. Philos, Soc. — When de- scribing this species 1 stated that the elytral stria are " not ob- solete behind." This may be corrected by substituting the phrase '' almost obsolete behind." The punctures of the striae are large and obvious at base, but are obsolete, or rather entirely wanting on the posterior third. The exterior margin and epipleura are blackish green. 3. !B. PUNCTATOSTRIATUM Say, Trans. Amer. Philos. Soc. — The posterior angles of the thorax are very acute ; the basal and anterior margins are slightly longitudinally wrinkled, the dorsal line transversely wrinkled on its margins, an/rophse,na vinida, or G. dissimilis Er. — Lec] 5. A. INDENTATA. — Yellowish ; head, thoracic disk, ' elytral spot and middle of the tergum, black. Inhabits Pennsylvania. Head not obviously punctured ; eyes not remarkably large or prominent ; antennae reddish-brown, pale at base ; mouth honey- yellow ; thorax dull yellowish, dusky in the middle ; a longitudi- nal impressed line, and an indentation on the middle of the base ; elytra with small, numerous punctures ; yellowish, with the su- tural edge and a triangular spot, extending from before the middle to the posterior outer angle, but not reaching the suture ; tergum reddish-yellow, the two middle segments blackish; beneath yel- lowish ; postpectus and middle of the venter black ; feet whitish. Length about one-fifteenth of an inch. Var. a. Thorax with the dusky disk obsolete. Kesembles the dichroa Grav., in having the indentation on the [470] middle of the base, but it diiFers in many respects, and obviously in coloring. [A species of Homalota. — Lec] 6. A. 4-PUNCTATA. — Thorax rufous, with four punctures placed transversely. Lihabits Missouri and Lidiana. Head piceous black, with one puncture on the inner orbit, and three or four behind the eye; antennae, reddish-brown, three basal joints honey-yellow; palpi piceous; thorax honey-yellow with four distant punctures before the middle, placed in a transverse line, the lateral ones less distinct; elytra dull honey-yellow, with min- ute punctures, having prostrate hairs ; tergum piceous, paler to- wards the tip ; beneath dark piceous ; feet yellowish. Length over one-tenth of an inch The four punctures of the thorax is an obvious character. [I have not identified this nor the two succeeding species. — Lec] [Vol. IV. AMERICAN PHILOSOPHICAL SOCIEXr, 587 7. A. PROPERA. — Blackish ; thorax depressed on the posterior middle. Inhabits Indiana. Body with very numerous small punctures, furnishing pale yellowish hairs ; antenna) black fuscous, three or four basal joints piceous ; mouth piceous ; thorax black piceous, conspicuously hairy; on the middle of the base indented; elytra piceous brown, obviously hairy, a little depressed on the basal margin and in the region of the scutel ; tergum black ; feet pale piceous. Length over or about one-tenth of an inch. The depression, almost or quite amounting to an indentation at the base of the thorax is sometimes geminate. 8. A. SEMICARINATA. — Blackish ; thorax with a carina on the basal half. Inhabits Missouri. Body black with a piceous tinge ; thorax with an elevated line or two parallel impressed striae, from the middle to the base ; • elytra with a slightly impressed sutural groove on the basal half; abdomen black; feet pale piceous. [471] [Continuation from Vol. VI. N. S., 1S36, pp. 155-190.] 9. *A. SIMPLICICOLLIS. — Blackish; antennae, feet, inner tip of the elytra and posterior margins of the segments of the tergum reddish-brown. Inhabits Missouri. Body with short prostrate hairs ; head black ; antennas reddish- brown; transverse joint somewhat darker; elytra on the sutural margin, particularly towards the tip, obscure reddish-brown ; common emargination at tip very obvious : tergum with the pos- * In the description of the preceding species (J., semicarinata see Vol. IV. N. S., p. 470,) the following details were accidentally omitted : — Length less than one-tenth of an inch. Resembles A. propera, but may be distinguished by the double tho- racic groove, forming an inclined carina. 1836.] 588 TRANSACTIONS OF THE terior margins of the segments dull reddish-brown ; feet reddish- brown or honey-yellow. Length about one-tenth of an inch. Distinguished from the two preceding species by the simplicity of the thorax and the margined segments of the tergum. [I have not yet identified this species. — Leg.] 10. A. FALSIFICA. — Black ; with converging hairs ; elytra and feet yellowish. Inhabits Indiana. Body black, with rather long, prostrate hairs : head with the hairs [156] converging to the middle line and directed forward, antennae blackish ; basal joints obscure piceous : palpi dxill yel- lowish ; thorax with the hairs converging to the middle line and directed forwards : elytra dull yellowish, darker on the base, su- ture and outer margin ; the hairs somewhat arranged so as to re- semble striae : feet honey-yellow. Length about one-tenth of an inch. [I have not yet identified this species. — Leg.] 11. A. VERNA. — Black; distinctly punctured; inner top [tip':*] of the elytra dull yellowish. Inhabits Missouri. Body with scattered hairs : head polished, with sparse irregu- larly arranged, rather large punctures : antennae of the basal joints hardly tinged with piceous : thorax polished, with numer- ous, rather large, unequal and irregularly scattered punctures ', middle line destitute of punctures : feet black-piceous. Length about one-tenth of an inch. The more conspicuous and irregular puncturing will distinguish this species from the above described. [If for to]) we read tij), this is A. nitida Grav. — Leg.] 12. A.EXIGUA. — Black; punctured; antennae and feet hardly tinged with piceous. Inhabits Indiana. Body black, a little polished, with short hair ; punctures nu- merous, somewhat regular : antennae at base and palpi very sli ghtly tinged with piceous : elytra a little indented at the scutel : [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 589 at tip the common emargination obtuse, not profound : feet black- piceous. Lengtli one-twentieth of an inch. [A Ilomahta, probably the same as OJlyoia jiedicularis Mels. — Leg.] 13. A. MINIMA. — Black ; elytra and feet dull yellowish. Inhabits Indiana. Body black, with numerous prostrate hairs : antennae towards the base with a very slight tinge of piccous : elytra dull yellow- ish : tergum dirty yellowish at tip : feet whitish yellow, dull. Length nearly one-tenth of an inch. Var. a. Thorax nearly the color of the elytra. [Also a Ilomalota. — Lec] 14. A. BILOBATA. — Dark reddish-brown ; thorax subcordate, canaliculate, feet pale. Inhabits Missouri and Indiana. Body very dark reddish-brown, with numerous regular punc- tures : antennae, two basal joints paler : mouth beneath, excepting the terminal joints of the maxillary palpi, pale testaceous : thorax rounded before and narrower behind; very deeply canaliculate ; groove abruptly abbreviated on the basal margin : elytra at tip and sides with smaller [157] punctures than the thorax; suture ir dented : feet pale testaceous : tergum, segments with dilated punctures at base. Length less than three-twentieths of an inch. The thoracic canal is less dilated, but at least as profound as that of the canaliculata Grav.; the thorax is more contracted behind, and the head more prominent, and distinctly separate from the thorax by a short neck. The genus Aleochara, as is obvious to entomologists, needs re- formation. The present species, and some others of Grraven- horst's first divisions, may be separated from it under the follow- ing name and characters. Genus Aleodorus. — Head prominent, with a distinct neck, not inserted into the thorax ; antennae inserted into the anterior in- ternal orbit of the eye ; three basal joints longest ; maxillary 1836.] 590 TRANSACTIONS OF THE palpi long, terminal joint acicular; thorax longitudinal, rounded on the sides, or without lateral edge ; feet simple.* [Belongs to Falagria. — Leg.] BUPRESTIS F. 1. B. VIRGINICA. — Turton's Linn. p. 411 ; Drury's Ins. vol. 1, p. 66, pi. 30, fig. 3. This species very closely resembles B. mariana L., and not- withstanding the magnitude of Drury's figure, it is somewhat smaller than the latter species, the posterior part of the thorax is a little narrower and the curvature of its lateral edge is some- what different. It inhabits the Eastern and Middle States. [Belongs to Clialcopliora. — Lec] 2. B. LIBERIA Germ. — This differs more in color from the virginiensis, than the latter species does from the mariana; but it corresponds with virginiends in the form of the thorax. I am still inclined to consider it a variety of that species, which Germar does not refer to in his description of liherta. [Also a Chalcophora. — Leg.] 3. B. LURiDA F. (and Melsh. Catal.) This is the corrosa Deg. MSS. Herbst. Olivier did not ob- serve the anal points, which are sometimes obscured by the hair. [A species of Dkerca. — Leg.] 4. B. DIVARIGATA nob. — That this insect is closely allied to acuminata F., there can be no doubt, and Dejean (in a letter) considers it the same ; but, on reference to the description of that species by Gyllenhal (Insecta Svecica*,) I find the following characters, " thorax ante scutellum puncta duo impressa ; anus emarginatus." In the present species is only a single indenta- tion at the base of the thoracic groove, and immediately anterior * I am indebted to Professor Wiedemann for the two very useful works on " Coleoptera Microptera " by Gravenliorst. They contain detailed descriptions of many Xorth American species of the Linna?an genus Staphylinus, which now constitute a large family. fFor this very accurately descriptive work, I am indebted to the politeness of the author. [Vol. VL « AMERICAN PHILOSOrHICAL SOCIETY. 591 to the scutel, and the anus is tridentated, the middle tooth being more slender and acute. A variety in my collection is destitute of the punctured strise of the elytra. [Also a Dicerca. — Lec] 4. B. OBSCURA F. (and Melsh. Catal.) Herbst says the side of the thorax is rectilinear, not arcuated. This would agree better with hirida F.; my specimens of oh- scura are rectilinear only from before the middle to the base. [Also a Dicerca. — Lec] 5. B. DENTIPES Germar. — This is the characteristica of Mel- sheimer's Catalogue ; but, as no mere catalogue can establish a name, Germar's must be of course retained, because it is the first name recognized by a description. [This and the two following belong to Chri/sohothn's. — Lec] 6. B. HYBERNATA F. — From the specimen in my collection, I am led to believe that the liijhcrnata F., is but a variety of the frontalis Olivier, and that both have serrate elytra; but I have not at present the means of referring to Olivier's work. My specimen is reddish purple ; thorax immaculate ; elytra serrate, with but five green spots ; and the anterior thighs are armed with a prominent tooth. 7. B. SEXGUTTATA nob. (Journ. Acad. Nat. Sc.) — This name being preoccupied by Herbst for an American species, we change it to sexsignata. 8. B. GiBBicoLis nob. (Journ. A. N. S.) — This name is pre- occupied by Illigcr for an European species, it must therefore be changed. [A species of Ptosima, ante, 104. — Lec] 9. B. PULCHELLA Herbst. — The volvulus F., is probably the same species ; but which of the two names has the priority I cannot now ascertain, not having the date of Herbst's volume. There is some confusion amongst the species of the small group to which this belongs, in consequence of the short descriptions of Fabricius. Herbst's description of this species cannot well be mistaken. I have found it in Pennsylvania, [ 159] Florida and Arkansa. It is the ornata of Dejean's Catalogue; and LS36.] 592 TRANSACTIONS OF THE Germar, in a letter, considers it a new species under tlie name of olydonia. [This and tlie two succeeding species belong to Acmscodera. — Leg.] 10. B. ORNATA. — About the size of the preceding, though perhaps a little more robust, of a much darker color ; and may also be distinguished from it by the thorax having the dorsal line deeply indented, more especially on the posterior margin, and being obtusely angulated behind the middle of the lateral edge. Dejean supposed it a new species, and gave it, in MSS., the name of multiguttata, but I think there is no doubt that it is the Fabrician species. 11. B. TUBULUS F. — This species is described as having but five yellow punctures on the elytra, placed 2, 2, 1, the latter being the largest. But it varies considerably in this respect, sometimes having eight or nine spots, and again other specimens occur with not more than are indicated by Fabricius, if we con- sider the posterior larger one as being composed of two confluent ones. The rest of the description agrees precisely, and even the noted size corresponds with our insect; as Fabricius says, *' statura omnino G. volvul\, at duplo minor." It may indeed be at once distinguished from pidchella by its much inferior size, very different color, and the greater regularity of its elytral spots ; but the lateral edge of the thorax has a similar curvature. It is the smallest of our species of the group distinguished by the want of scutel, &c.. and approaches the ornata by its coloring and the somewhat similar arrangement of the elytral spots, but differs in the regular curvature of its lateral thoracic edge. It is the volvulus of Dej can's Catalogue. Germar believed it new and gave it the name of xcmithocyma ; it is the culta of Weber ; and Dr. Harris has described it under the name of geranii. 12. B. ACORNis. — Brassy black; antennse short; scutel green; beneath cupreous. Inhabits Indiana. Body with dense, rather large, confluent punctures : head a little tinged with cupreous, particularly towards the tip; tip of the clypeus not narrowed, not emarginate, but with a slight con- [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 593 cave curvature : labrum hardly prominent, not visible "when viewed from above : antenna) very short, not reaching the vertex, the three basal joints together about as long as all the others combined ; thorax in breadth at least [ 160 ] twice the length, with transverse confluent punctures :^ scutel bright green : elytra with transversely confluent punctures ; serrate from near the humerus ; surface obsoletely undulated : beneath cupreous : an- terior thighs with a prominent acute spine. Length seven-twentieths of an inch. A small and distinct species. [Belongs to Actenodes Lac. Gen. Col. 4, 72. — Leg.] 13. B. IMPEDITA.* — Elytra bluish-green, grooved and punc- tured. Inhabits Pennsylvania. Head confluently punctured, green with a cupreous reflection : antennae steel-blue, at base green : labrum green, ciliate at tip : thorax cupreous, with green confluent punctures ; on some parts of the disk the punctures are sparse : scutel oval, regulai'ly con- cave, green ; elytra densely punctured, with five dilated grooves and four elevated lines, the latter sparsely punctured; green, gradually shaded into a blue vitta along the middle ; suture and outer margin cupreous ; tip somewhat truncated : beneath green cupreous. Length three-fifths of an inch. The specimen was taken near Philadelphia. It is evidently related to salisburie^isis, as described by Weber, to decora F., and splendens F., of China. But Weber's description states the former to have striated elytra, without elevated lines. The splendens has only three elevated lines on the elytra, and the decora is larger, with the tip of the elytra two-toothed. Neither can it be the striata Oliv., as the elytra are not slightly bidentate, nor are their two inner elevated lines abbreviated. A variety found by my brother, B. Say, in New Jersey, is much tinted * Dr. Harris is of opinion that this species, the auridenta of Linnaeus and Olivier, and the striata of Fabricius are the same ; and that the decora F. and salifiburiensis Weber and Herbst, are identical. The latter differ from the auridenta L., in not having elevated lines on the elytra. 1836.] 38 594 TRANSACTIONS Or THE with copper, and is smaller, but the sculpture and form are the same. I may add, as closely allied to the impedita and to the salis- huriensis Web., in point of coloring, a specimen which I found in New Jersey many years since, and which I then described under the name of ultramarina ; but the description was mis- laid and never published, and the specimen is now deprived of its head and thorax. The following is a description of what re- mains of it. [160] Scutel orbicular, disk indented : elytra blue on the disk ; sub- margin and subsuture green, passing into golden towards the margin and suture which are brilliant coppery or red golden ; basal margin green golden ; surface with seven or eight striae of dilated profound punctures; the interstitial lines with each a single series of smaller punctures ; elevated lines ; tip truncated, with a slight projection at the inner angle : beneath green-golden, with a slight coppery tinge : tibiae coppery. Length of the elytra two-fifths of an inch. It is more brilliant than either the impedita or salisburiensis. From the former it is distinguished by being destitute of elevated lines on the elytra, and from both by its regular series of large profound punctures. [I agree perfectly with the opinions of Dr. Harris expressed in the note on the preceding page, except in regard to the £. aurulenta mentioned, which is not that of Linnaeus, but of Oli- vier and several later authors. The description of Linnaeus, Syst. Nat. 1, 661, makes no mention of the elytral costae, and applies better to A. decora than to A. striata ; the name has produced so much confusion, that it should not be applied to any species, but should rather be altogether dropped ; B. ultra- marina is an Ancylochira very closely allied to A. decora, but of a broader form, with the intervals of the elytra less irregularly punctured, especially towards the suture, with the tips rounded or truncate and not bidentate. Messrs, Laporte and Gory, by unaccountable carelessness, have affixed this name to a species of Chrysohothris. — Lec] 14. B. VIRIDICORNIS nob. — This has been mistaken by an European entomologist for the Agrilus ruficollis F.; but it is [Vol. VL AMERICAN PHILOSOPHICAL SOCIETY.. 595 very different in form, which is much more like that of a true Buprestis ; and the color is also different, though that of the head and thorax probably deceived him, being coppery in each, though much more obscure in our insect. I have taken a variety in this State differing greatly in color, so much so, that it might lead to error unless actually compared. The color is bright green ; thorax on the disc tinged with coppery, with a common green triangle extending from the humerus to beyond the middle; beneath the green color is less brilliant. Another variety has the cupreous color of the thorax confined to the lateral margin, the remainder being of the color of the elytra. I may add to the specific description that the head has an or- bicular indentation between the eyes, and a slightly indented line on the vertex ; the scutel is altogether destitute of a trans- verse elevated line; it is convex, and widely triangular; the elytra are minutely serrate at tip. This species has characters in common with Buprestis and Agrilus, and it may perhaps belong to the latter. [Two species of Antliaxia are here confounded together : one is A. quercata, the other a variety of A. idridicornis. — Leg.] AGRILUS Megerle. 1. A. RuncoLLis F. — We may add to the Fabrician charac- ters that the head is profoundly indented on the vertex ; the in- dented line is continued down the front ; the elytra are scabrous, and at tip, as well as that of the abdomen, serrate. Var. a. Thorax obscure green. [ 162] Var. b. Thorax color of the elytra. The great indentation of the vertex distinguishes this species from others of this country. Herbst's figure only tends to mis- lead, if indeed it can be intended for this insect at all. It is too robust, the thorax is not represented as indented, and the elytra are punctured in striae, with large punctures. 2. A. GEMINATUS nob. — A numerous species ; the color of the head and thorax often resembling those of the preceding species, but the acute, arcuated elevated line at the posterior angles, is 1836.] 596 TRANSACTIONS OF THE similar to that of the linearis "¥., of Austria, which it very much resembles. 3. A. POLITUS nob. — Much like arcuatus, but a little more ro- bust, and of a brilliant color. Like the other species its elytra are denticulated at tip. Having examined numerous specimens, I find that it is not of a larger size than geminatus. 4. A. ARCUATUS nob. — A little larger than geminatus, and re- sembling it in the character of the elevated line at the posterior thoracic angles, but the antennae are much more slender and elongated. 5. A. GRANULATUS nob. — This species has three hardly visible fulvous spots on the elytra; one on the depressed base, one near the suture before the middle, and one behind the middle, also near the suture. I have a specimen in which these spots are not at all visible. The elevated line at the posterior angles of the thorax is short, but very obvious. 6. A. BILINEATUS Weber, nob. — In my printed description an error occurs. When describing the elytral vittae, instead of " extended towards the tip, where it gradually approaches the scutel," I should have said suture instead of "scutel." 7. A. LATERALIS nob. — I stated in the description that the elytra are entire ; I would add that they are not obviously denti- culated at tip. 8. A. pusiLLUS nob. — The smallest North American species I have yet seen. The above species of Agrihis, excepting the first, I described in the Journal Acad. Nat. Sc, and the Annals of the Lyceum of Nat. Hist., of New York, under the genus Buprestis, to which most entomologists yet refer their kindred species. [ 163 ] 9. A. FALLAX. — Elytra with about three spots on each, which exhibit a difi'erent reflection. Inhabits Indiana. Brassy-greenish : head green, sometimes cupreous on the ver- tex ; impressed line hardly obvious : thorax with a dorsal and lateral indented line j the former more obvious behind, the latter [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 597 oblique and dilated ; more or less tinged with cupreous ; an arcu- ated, elevated line at the posterior angles ; posterior angles acute : elytra with the basal indentation, subsutural spot behind the middle, composed of minute prostrate hairs, producing a differ- ent reflection from that of the general surface ; tip denticulate : beneath blackish-brassy. Var. a. Dull cupreous ; thorax brighter. Length more than one-fifth of an inch. Distinguished by the elytral spots offering a different reflec- tion from the remainder of the surface- In some positions they are hardly obvious; but seen from before or behind they are dis- tinct, particularly the posterior one. 10. A. PUTILLUS. — Thorax transversely indented before and behind the middle ; elevated line of the posterior angle none. Inhabits Indiana. Body blackish-brassy : head greenish ; longitudinal impressed line very distinct : thorax with a transverse indentation before, a much larger transverse indentation behind the middle, and a more profound lateral one parallel with the lateral margin ; pos- terior angles destitute of an elevated line, retangular or rather more obtuse ; elytra, basal indentation ovate-oblong, oblique ; tip denticulated, from the suture to the middle concave; suture rather prominent. Length over one-tenth of an inch. Only three of the before mentioned species are destitute of an elevated line at the posterior thoracic angles, viz. the ruficoUis^ Ijilincata and lateralis, to these we may add the cogitans Weber. From all these the present is separable by its inferior size, ex- cepting the lateralis, which has no denticulations at the tip of the elytra. One of my specimens has the head green before. 11. A. OTiosus. — Line of the thoracic angles short and ob- tuse ; front but slightly punctured. Inhabits Indiana. Body greenish, or brassy-blackish, rather slender : head with the punctures obsolete, excepting on the vertex, where they are not profound [164] or well defined; beneath the middle of the front with short whitish hairs : thorax with two slight indenta- 1836.] 598 TRANSACTIONS OF THE tions placed longitudinally, a more obvious one on the lateral margin, and another each side of the basal middle ; elevated line of the posterior angles less than one-fourth of the length of the lateral edge, but slightly elevated and obtuse : elytra depressed from the suture to the middle ; tip denticulated. Length nearly one-fifth of an inch. Resembles geminatus, but its form is rather more slender, the frontal punctures are obsolete, and the elevated line of the thora- cic angles is much shorter and less distinct. 12. A. COGITANS Wc^er. — The thorax is described to be serrate ; but on close exapjination the edge will be found to be entire, and the upper surface of the edge, or extreme margin only, is serrate. The body is more dilated than in any other of our species. [Belongs to Rhsehoscelis Chevr. and was also described as B. vjnara Fabr. — Lec] TRACHYS F. 1. T. TESSELLATA F. 2. T. ovATA Weber, Obs. p. 76. Our species vary greatly or are very numerous. [These species belong to Brachys. — Leg.] METONIUS Say. Thorax short, wide, and deeply emarginate before for the re- ception of the head ; not lobate behind : antennae subclavate, concealed when at rest in a groove of the thorax ; body short, wide before and narrow behind : tibise angulated, and when at rest the tarsi are applied to the outer edge : prsesternum promi- nent to the mouth, and behind applied evenly to the poststernum by a transverse line. This genus differs from Trachjjs in the thorax being not lobed behind ; in the praesternum terminating by a straight line ; by the dilatation of the tibiae, &c. [This genus is the same as the subsequently described Pachys- celis Solier, which is united with Brachys by Lacordaire. — Leg.] 1. M. OVATUS nob. (Trachys) Ann. Lye. New York. — Those who will retain this species in Trachys must change the name to laevigafus, as the other is preoccupied in that genus. [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 599 2. M. PURPUREUS. — Ovate, black ; elytra purple. Inhabits Indiana. Body black : head with distinct punctures ; front with an in- dented, [165] abbreviated line placed low down : thorax with scattered discoidal punctures ; no lateral indentation : elytra pur- ple ; indented at the middle of the base and behind the hume- rus ; punctures rather large but not deeply impressed, placed in series and obsolete behind : tibiae angulated. Length under three-twentieths of an inch. This insect is certainly congeneric with the preceding, but it cannot be placed in Trachi/s, or even in Aphanisticus, if jjusillus, Olivier, can be considered as a type of it. APIIANISTICUS Latr. A. GRACILIS nob. (Tmch)/s) Ann. Lyc. New York. — The tho- rax is not laterally dilated and reflected. [Belongs to Taphrocerus Solier, which is united with Brachys by Lacordaire. — Leg.] MELASIS Oliv. M. NIGRICORNIS nob., Journ. A. N. S. I was deterred from referring this species to Ccroplnjtum Latr., by the character "le penulti^me article des tarses bifide. Le corps est ovale." Our insect cannot therefore be the Melasis picea Beauv., which is referred to CeropTiytum. ELATER L. ■j" Tarsi not lohed heneath. 1. E. OBLESSUS nob. (discoideus Fabr.) — The Fabrician phrase, when describing the elytra, is, " elytra striata, atra, mar- gine baseos lateralique late albo ;" but as the whitish portion occupies about two-thirds of the whole surface and might lead to error, it would be better to say, elytra whitish, with the sutu- ral margin and exterior edge, excepting at base, black . I change the Fabrician name, because it is preoccupied by Weber for a very different species of this country.* * Dr. Harris says that Weber's species here referred to, is the hamatus of Fabricius ; and that Mr. Say does not seem to have known the Elater discoideus of Fabricius, which is quite distinct from the above named ohlessHS. 1836.] 600 TRANSACTIONS OF THE 2. E. MORio F. Herbst. E. Ixvigatus F. Herbst. E. piceus Degeer, Turton's Linn. [166] This species is subject to vary tlirough all the intermediate gradations between smooth elytra and deeply striated elytra; which is the cause why several species have been made of it. The lateral edge of the thorax is grooved. [Belongs to the genus Melanactes Lee. — Leg.] 3. E. ABRUPTUS nob., Ann. Lye. Nat. Hist. New York. Like morio, but more convex above, more impressed at the junction of the thorax and abdomen ; more densely and minutely punc- tured; a little more robust; each joint of the antennae originates much nearer the posterior angle of the preceding joint; and the lateral edge of the thorax is destitute of a groove, of a somewhat different form, and the head is not impressed, but is rounded on the front. [Belongs to Ludlus, ante 1, 390. — Leg.] 4. E. ATTENUATUS. — Reddish brown; elytra somewhat atten- uated, blackish and mucronate behind. Inhabits the United States. Body bright reddish-brown, almost sanguineous, with small close set punctures : head not indented before : antennae, joints not elongated : thorax convex, lateral margin arcuated ; narrowed before ; line from the posterior angle rectilinear, acute, diverging from the lateral edge so as to be as near to the inner edge: region of the scutel rather widely indented : elytra with smaller punctures than those of the thorax; with obsolete striae; termi- nal oblique third black ; tip somewhat attenuated and mucronate : feet a little darker. Length four-fifths of an inch. A variety occui's of which the elytra are obscure, but still the terminal third, and the exterior margin also, are black. In a particular light is a slight sericeous effect. [Also a Ludius, ante 1, 392. — Leg.] 5. E. VIRIDIPILIS nob. — The thorax in form resembles those oculatus and myops F. but is proportionally longer. The posterior angles are curved considerably downward. It is rare. [A species of Chalcolepidius. — Leg.] [Vol. VI. AMERICAN PHILOSOPHICAL SOCIETY. 601 6. E. CYLINDRIFORMIS nob. — In the description " a promi- nent edge above the antennae, which disappears before ;" instead of the three last words, read, which is obtusely emarginate. The head, thorax and base of the elytra have rather long, prostrate hairs ; the remainder of the elytra has short hairs. Tarsi simply hairy beneath. It may be referred to the genus Campylus Fischer, but the head is inserted nearly to the eyes in the thorax ; and the palpi are hardly filiform. [Belongs to Lhnonius. — Lec] [167] 7. E. RUBRicoLLis Herbst, Nob. (Journ. Acad. Nat. Sc). This is the verticinus Beauvois, but I do not know which has the priority.* 8. E. LIMBALIS. — Thorax fulvous, disk black; elytra black- ish, with a testaceous margin. Inhabits United States. Head blackish ; antennae wide, deeply serrate ; three basal joints taken together not longer than the fourth joint; second and third very short, equal, transverse; thorax fulvous testaceous ; disc in the middle, basal and posterior part of the lateral margin black ; elytra testaceous all around, and blackish along the mid- dle : beneath black piceous ; pectus with an oblique, fulvous spot near the posterior angles; feet piceous. Length less than half an inch. This is the limbalis of Melsh. Catal., and I have it noted in my MSS. interrogatively as the limhalis of Herbst, but I have not now his work to refer to. 9. E. ECTYPUS. — Blackish brassy; antennae and feet rufous; thoracic spines very short. Inhabits United States. Blackish or dark brown, tinged with brassy ; clypeus very ob- tuse, almost truncated before, not appressed ; above plane, with two obsolete indented lines ; antennje dark rufous, not dilated, and hardly serrate ; second joint more than two-thirds the length * Dr. Harris remarks that Herbst's name undoubtedly has the priority ; for that of Palisot de Beauvois does not seem to have been sanctioned by a description. 1836.] 602 TRANSACTIONS OF THE of the third; terminal joint not abruptly contracted near the tip : thorax convex ; dorsal line obvious ; spines short, their ex- curvature hardly obvious, carina nearly parallel with the exterior edge ; scutel a little convex ; elytra with punctured striae ; inter- stitial spaces with numerous, small, definite, orbicular punctures ; feet rufous ; tarsi simple. Length nine-twentieths of an inch. It may be distinguished from the appressifrons nob., which it resembles, by the more convex thorax, of which the spines are much shorter and not much excurved ; the antennas are more slender, and the terminal joint is not abruptly narrowed near its tip, and the punctures of the interstitial spaces of the elytra are obviously orbicular, and definite. [Belongs to Limonius. — Leg.] 10. E. PYRRHOS Herbst. — Elongated; the thorax is narrow, the spines [168] hairy ; the joints of the antennae are in length about three times their greatest breadth, even the second joint is in the same proportion with respect to the third : the length of the antennae is equal to half that of the body : clypeus sub- quadrate, concave towards the tip. Length seven-tenths of an inch. [Belongs to Gorymhites, ; Atlious pyrrliicus Hald., A. vagrans Mels., and A. eequalis Mels. are synonyms of the female. — Leg.] 11. E. SULCICOLLIS nob. (^. paraZfc^2:hri.o. Probably C. bicolor, but it does not appear to agree with Fabricius's description. [Previously described as Mdasis piceus Beauv.; a variety was subsequently described by me as Zeiioa vidiicmta. — Leg.] LYCUS Fabr. 1. L. MODESTUS. — Black; thorax fulvous, with a black disk. Inhabits Ohio. Body black, opake; antenna;, second joint minute, nearly half 1835.] 632 BOSTON JOURNAL the size of the third : mandibles? rufous j palpi, terminal joint rather oval than securiform ; thorax broader than long, as wide as the base of the elytra, reddish-fulvous, with a black disk ex- tending to the base, disk a little convex, without any carinate line, each side a little concave, lateral edge nearly rectilinear, the posterior angles not excurved, and not very acute at tip, an- terior edge regularly arcuated : elytra black, with elevated, lon- gitudinal lines, and in the intervening spaces are numerous trans- verse, elevated lines, and a small longitudinal one ; wings black, tinged with rufous on the costal base. [154] The insect was lost before the measure of its length was taken. [Belongs to Eros Newman, Anai-hi/nchus Gruer. — Lec] 2. L. OBLiQuus. — Black ; margin of the thorax and basal mar- gin of the elytra fulvous. Inhabits Mexico. Body rather slender, black; antennae compressed, serrate; palpi white, terminal joint black; thorax with a wide lateral ful- vous margin and an elevated fulvous line in the middle, posterior angles rather prominent and acute ; elytra with elevated longitu- dinal lines and transverse ones in the intervening .spaces, forming large subquadrate punctures ; a dilated fulvous margin at base, occupying the surface to the sutural stria, before the middle be- coming narrower until it terminates on the costal edge beyond the middle ; coxsb white. Length seven-twentieths of an inch. Allied to dimidiatus Fabr., but the antennae are not flabellate. 3. L. CANALICULATUS. — Black ; thorax with a yellowish mar- gin and an impressed line on the basal margin. Inhabits Missouri. Mandibles pale ; antennje serrate, third joint rather shorter than the fourth ; thorax yellowish rufous, a large, black, sub- quadrate spot on the disk, anterior edge very prominently arcu- ated; basal margin with an abbreviated impressed longitudinal groove ; elytra with elevated longitudinal lines and intermediate transverse ones. Length one-fourth of an inch. [Also an Eros. — Lec] [Vol. I. OF NATURAL HISTORY. 633 OMALISUS Geoffr., F. 1. 0. MARGINELLUS Fabr, (Lycus) Syst. Eleuth. Inhabits Pennsylvania; Massachusetts, Harris. [155] [This and the five following species belong to Eros. — Leg.] 2. 0. cocciXATUS. — Sanguineous; head and beneath black. Inhabits Pennsylvania and Indiana. Body sanguineous; head black; mandibles pale reddish; tho- rax darker than the elytra, its depressions dusky; two longitudi- nal elevated lines, distant in the middle, and meeting on the anterior and posterior edges of the thorax, enclosing a rhomboi- dal space ; from their middle an elevated line proceeds to the lateral edge; the margin elevated : scutel blackish : elytra with four elevated lines; interstitial spaces with a longitudinal slightly elevated line, and transverse ones about the distance of their own length from each other ; wings blackish : beneath black. Length over two-fifths of an inch. 3. 0. MUNDUS. — Bright sanguineous ; antennae black. Inhabits Indiana. Body entirely bright sanguineous : antennae, excepting the three basal joints, black: eyes black : thorax with two longitu- dinal elevated lines, distant in the middle and meeting before the anterior and posterior edges of the thorax, enclosing a rhom- boidal space ; from their middle an elevated line passes to the lateral edge, and an elevated abbreviated line on the posterior submargin : elytra with four elevated lines; interstitial spaces with a longitudinal, very slightly elevated line, and transverse ones, about the distance of their own length apart ; venter black : tarsi dusky. Length one-fourth of an inch. Much like the preceding, but is only half as large, and its colors are differently arranged. 4. 0. HUMERALis F. (Lycus) Syst. Eleuth. [156] Inhabits also Indiana ; Massachusetts, Harris. It varies in having the humeral margin obsolete. 5. 0. scuLPTiLis. — Piceous; thorax with elevated lines, yel- lowish each side. 1835.] 634 BOSTON JOURNAL 0. picuritcs ? Knocli. in Melsli. Catal. Inhabits Missouri and Pennsylvania. Antennae black, second joint minute ; third joint as long as the others: head black; cljpeus anteriorly a little produced, impressed in the middle ; thorax with three elevated, parallel lines before the middle, and two behind the middle, a lateral somewhat oblique line proceeding to the lateral edge, which is obtusely a little contracted in that part : elytra with four elevated lines, interstitial spaces with transverse, elevated, somewhat irregu- lar lines nearer to each other than their own length. Length about one-fourth of an inch. 6. 0. OBLiQuus. — Black ; base of the elytra and each side of the thorax yellowish. Inhabits Indiana. Body black : antennae, second joint more than half as long as the third : front tinged with ferruginous : thorax reddish-yellow, with elevated lines enclosing a turbinate space in the middle, with an elevated line extending from its centre to the anterior edge, and an oblique one each side, extending to the lateral edge ; edge elevated; disk black, extending to the base : elytra reddish- yellow on the basal half, terminated obliquely at the middle ; elevated longitudinal lines and intermediate transverse ones; a quadrate black spot, including the black scutel. Length less than two-fifths of an inch. [157] PHENGODES Ploffm. P. PLUMOSA Oliv. p. testacriis Leach, Zool. Journ. 1824. Not uncommon for a short period in the autumn. Attracted by the candle, they enter the house in the evening, and fly re- peatedly against the ceiling in their efforts to escape. LAMPYRIS Lin. 1. L. TRILINEATA. — Grayish-brown ; elytra with the margin and three lines yellowish. Inhabits Mexico. Head on the front, pale carneous or yellowish : antenna) black- cinereous, basal joint whitish : thorax varied with dull yellowish, [Vol. I. OP NATURAL HISTORY. 635 blackish and rosaceous, sometimes a blackish vitta trilobate at base, and a lateral marginal spot : scutel blackish : elytra gray- brown, the edge and sometimes the margin all around, and two or three lines on each elytron, yellowish : beneath blackish, generally varied with rosaceous and yellowish. Length over half an inch. Var. a. An oblong-subquadrate, marginal, yellowish spot be- hind the humerus. A large species, wider and shorter than L. versicolor Fabr., which it somewhat resembles in the charfictcr of the elytra, as it does L. angulata nob., in that of the thorax. 2. L. BTFARIA. — Antennae with two processes from the base of each joint. Inhabits North Carolina, Harris. Body black, densely punctured: head with a carinate [158] line : antennoe at the base of each joint, excepting the first, second and ultimate ones, with two opposite processes at least as long as the joint and nearly as thick : thorax fulvous, with a di- lated black vitta not reaching the anterior edge ; an impressed line ; elytra confluently punctured, appearing granulated. Length nearly seven-twentieths of an inch. Remarkable by the form of the antennte. [Afterwards described as PoUadasis ovata Newman, and is placed by Lacordaire in Cali/ptoceplialus. — Leg.] CANTHARIS Lin. 1. C. TRICOSTATUS. — Elytra widened and rounded laterally, with three elevated lines. Inhabits Pennsylvania ; Massachusetts, Harris. Body black, with small dull yellowish hairs : head piceous at base J front yellow, oval margin blackish ; before the eyes and base of the mandibles yellow : antennae, second joint nearly equal to the third, which is obviously shorter than the following- ones : maxillary palpi much longer than the labials, black : tho- rax transverse, yellow ; disk fuscous ; each side widely concave ; anteriorly widely truncate; posteriorly widely emai'ginate : elytra laterally roundedly dilated; three prominent lines; humerus prominent: feet dark piceous; knees paler. 1835.] 636 BOSTON JOURNAL Length nearly half an inch. Var. Thoracic margin rufous ; front obscure. The width of the elytra and the form of the elevated lines are like some species of Lampypris ; but although the palpi are very unequal, yet those of the maxillae are not acute at tip, and the antennae are distant. [Belongs to Podahrus; afterwards described as TelepJiorus Bennettii Kirby. — Lee] 2. C. INVALIDA. — Blackish ; sides of the front of the thorax, and margins of the elytra, yellowish. Inhabits Indiana. [159] Body brown-black, covered with short hairs : head each side beneath the antennas yellowish : mandibles yellowish at base : antennae, first and second joints yellowish beneath : thorax mar- gined, black, each side yellowish ; dish rather unequal : elytra rather rough irregularly, with three or four obsolete nervures ; base of the exterior margin of the suture and elevated humerus, yellowish : pectus each side and before, yellow : venter, segments laterally margined with yellow. Length less than one-fourth of an inch. Var. a. Margin and suture of the elytra yellowish to the tip. It differs from rufipes nob., and scitula nob., in being more ro- bust and hairy ; from angidata nob., which it most resembles, by the entirely black feet, yellowish humerus and basal elytral mar- gins, yellow lateral ventral margins, somewhat more dilated ter- minal joints of the palpi, &c. [I have not identified this species. — Leg.] 3. C. PERCOMis. — Black, thorax rufous, immaculate. Inhabits Massachusetts, Harris. Body black, somewhat polished : antennae with the basal joint tinged with piceous; second joint less than one-third the length of the third, which is a little shorter than the fourth : thorax transversely oval, bright rufous, the edge a little elevated and dusky : elytra with a slightly uneven appearance, not amounting to punctures or granulations. Length nearly one-fifth of an inch. I have seen but one specimen which was presented to me by Dr. Harris. [Vol. I. OF NATURAL HISTORY. 637 [Belongs to Silis, and is the female of the species afterwards described by me as >S. hngicornis. — Lec] 4. C. BiDENTATA nob. Joum. A. N. S., may prove to be a Silis Meg., but as my specimen is imperfect, I cannot determine. MALTHINUS. [160] M. MARGiNiLis nob. (Molorchus) Joum. A. N. S. 1824, read to the Society the preceding year. Malthimis latl]}ennis ? Germar, Spec. Novae, p. 72, 1824. DASYTES Payk. Fabr. To this genus, as I now understand it, belong sevei'al species, which I published under the genus Malachius ; such as termi- nalis nob., &c. TILLUS Fab. T. ? TERMiNATUS. — Black; terminal joint of the antennae as long as the head and thorax. Inhabits United States. Body black, densely punctured and with numerous cinereous hairs : eyes reniform, emargination very profound : antennae, radical joint suboval ; second joint globular ; third, fourth, fifth and sixth, very short, transverse, approximated ; seventh, eighth and ninth, rather larger, serrate ; terminal one greatly elongated, longer than the head and thorax, and about three times as long as all the preceding joints conjunctly, much compressed, linear, with dense minute black hairs, tip and base rounded : labrum rounded at tip : mandibles bifid at tip : thorax cylindrical, hardly narrowed at base, margin rufous : tarsi distinctly five articulate ; first joint longer than the second ; penultimate one bilobate : nails dentated : abdomen sanguineous ; terminal segment black. Length rather more than one-fourth of an inch. I obtained two specimens of this curious insect, at the [ 161 ] cantonment of Major Long's party near Council Bluff on the Missouri river. It occurs also in Indiana and Pennsylvania. By the form of the tarsi, palpi and thorax, it approaches the present genus ; but the extraordinary conformation of the an- tennae seems to require a separation from the other species, at least in a distinct subgenus. 1835.] G38 BOSTON JOURNAL It varies in having the rufous thoracic margin very narrow and even interrupted on the lateral margin. [Afterwards placed as a distinct genus 3Iacrotelus Klug, Mono- l-ilvjlla Spin., both of which names were preoccupied ; I have therefore substituted for them the name Elasmocerus. — Leg.] PKIOCERA Kirby. P. INORNATA. — ^Black-piceous ; antennae and palpi yellowish ; maxillary palpi with the last joint rather small. Inhabits Indiana. Body elongated, blackish-pieeous, with pale hairs, punctured : head, punctures somewhat confluent, so as to present a rather granulated appearance : antennas honey-yellow, terminal joint hardly larger than the preceding one : labrum piceous, obtusely emarginate : mandibles piceous at base : maxillary palpi with the terminal joint small : thorax with an obtuse tubercle each side of the middle, on which is an indentation ; an impressed, transverse line before the middle and a contraction behind the middle ; an indentation on the basal margin ; punctures not pro- found, transversely confluent : elytra with deeply punctured striae : coxae and tarsi honey-yellow. Length two-fifths of an inch. This species agrees with all the characters of the present genus, as laid down by Kirby, with the exception of the magni- tude of the terminal joint of the maxillary palpi, which is much smaller than that of the type of the genus. It is rare. [Belongs to Gi/matodera. — Leg.] [ 162 ] To this genus, which was separated from TiUus by Kirby, the following species appear to belong. TiLLUS BiGOLOR nob. Journ. A. N. S. vol. 5, p. 194. TiLLUs UNDULATUS nob. ibid. p. 174. CLERUS Fab. 1. C. QUADRisiGNATUS. — Posterior two-thirds of the elytra black, with two broad whitish bands. Inhabits North Carolina. Harris. Body rufous, somewhat hairy; antennse black : palpi rufous, dusky at base : thorax with an angulated impressed line : elytra black, basal third rufous ; a broad yellowish-white band on the [Vol. I. OF NATURAL HISTORY. 639 middle and a narrower one near the tip ; more obviously and densely punctured at base : feet black. Length two-fifths of an inch. Very different from G. ichncumonem F., and trifasciafus S. by the bands of the elytra. The middle one of the latter is ru- fous or fulvous, and of the former black, and as long as wide, whilst in the present species the middle band is not so long as the width of the elytra, and the posterior band is at least half its size and of the same color. 2. C. SANGUINEUS. — Elytra sanguineous ; head and thorax dusky. Inhabits United States. Body dark piceous : antennoe, terminal joint paler : thorax with a longitudinal dorsal, and lateral rounded indentations : scutel dark piceous : elytra with numerous, obvious, profound, irregu- larly disposed punctures : venter and feet somewhat paler. Length about one-fifth of an inch. [163] Found in most parts of the Union. Dr. Harris sent me an in- dividual from Massachusetts. [Belongs to Thaneroclerus. — Lec] 3. C. OCULATUS. — Thorax and margin of the elytra yellowish, the former with two black dots. Inhabits Massachusetts. Head black : antenna) yellowish : thorax yellowish, cylindrical, with a black dot on each side of the middle : elytra black, with the suture, exterior and terminal margins yellowish ; regular series of large punctures : feet yellowish. Length over one-fifth of an inch. Sent to me for examination by Dr. Harris. [An EnopUum afterwards described as Pelonium marginipenne Spin. — Lec] 4. C. UNDATULUS. — Elytra black, with a zigzag cinereous band near the middle, and a siaiple one behind. Inhabits New Hampshire. Body sanguineous, punctured, hairy : head blackish : labrum, antennae and palpi rufous : thorax with an angulated, deeply im- pressed line on the anterior submargin ; anterior margin black- 1835.] 640 BOSTON JOURNAL ish : elytra black, with a very small rufous portion at base ', be- fore the middle a deeply zigzag narrow cinereous band in the form of a W, the middle angle pointing anteriorly, wider on the lateral margin ; anterior to the band are large punctures in regu- lar strice ; posterior band broader, cinereous, not undulated : post- pectus with a black middle. Length one-fifth of an inch. May be distinguished from nigrifrons S. and nigripes S. by the intermediate angle of the anterior band pointing forward, and from dubius F., which it closely resembles, by its blackish head, middle of postpectus, and by the form of the posterior band, which is not undulated as in that species. It was sent to me for examination by Dr. Harris. [Belongs to Thanasimus, and afterwards described as abdomi- nalis Kirby, which name being preoccupied was changed by Klug to nubilus, without recognizing the identity with Say's species. — Lec] [164] 5. C. HUMERALis S. Journ. Acad. Nat. Sc. vol. 3, pt. 1, 1823. C. humeralis Germar, Sp. Novae. 1824. TRICHODES Fab. 1. T. NUTTALLi Kirby, Trans. Linn. Soc. vol. 12. T. apivorus Germar, Sp. Novae, p. 81. It has also received a name in Dejean's Catalogue. 2. T. VERTiCALis. — Blackish; head yellow, with a black vitta; feet and base of the elytra yellowish. Inhabits United States. Blackish, somewhat bronzed : head yellowish, with a black vitta on the vertex : thorax somewhat cylindric, a little larger in the middle : elytra shorter than the abdomen, not meeting at the suture, a little narrowed to the tip, which is rounded, densely and irregularly punctured, punctures rather large ; a large, yel- lowish spot extends from the base nearly to the middle : feet yellowish. Length three-twentieths of an inch. Var. o. tenellus. Thorax dusky : elytra entirely pale yellowish white, at tip only a little dusky. [Vol. I. # OF NATURAL HISTORY. G41 Var. /?. Thorax with a hiteral abbreviated vitta on the anterior margin : spot of the elytra slender, and nearer the suture. Dr. Harris sent me a specimen from Massachusetts. I have obtained it on the common Hickory (Carya) in June. [Belongs to Hydnoccni. — Lec] ENOPLIUM Latr. 1. E. LATICORNE. — Black ; front and each side of the thorax fulvous. [165] Inhabits North Carolina. Body black, punctured : head fulvous : mouth, eyes and an- tennae black; the latter, with the three ultimate joints as broad as long, subquadrate, narrowed at base, the last one oval : thorax fulvous, of nearly equal width ; a transverse rectilinear, indented line on the anterior submargin, and indented points each side : elytra with regular striae of large punctures, much wider than the interstitial lines. Length less than one-fourth of an inch. The only specimen I have seen was sent to me by Dr. Harris for examination. [Belongs to Ichnea Lap. — Lec] 2. E. DAMICORNE F. (Tillus.) — In his description Fabricius says, "Antennarum articulis duobus ultimis dilato-compressis, acutis," but there are, of course, three dilated ultimate joints. PTINUS L. P. HUMERALIS. — Reddish-brown ; thorax quadrituberculate ; elytra with two bands widely interrupted by the suture. Inhabits Pennsylvania ; Massachusetts, Harris. Head pale reddish-brown, with incumbent pale ferruginous hair ; vertex glabrous : thorax reddish-brown, with incumbent, pale ferruginous hair ; an acute, elevated tubercle on each side, and two longitudinal obtuse ones on the disk, separated by a groove : scutel with prostrate, cinereous hair : elytra dark red- dish-brown, somewhat paler at base, with rigid elevated hairs and regular striae of rather large, impressed punctures ; two remote whitish bands interrupted at the suture. Very closely allied to P. fur F.,hnt the body is less [166] 1835.] 41 042 BOSTON JOURNAL rounded ; the punctures of tlie elytra are smaller^ and thoracic grooves less profound. DORCATOMA Herbst. D. siMiLis. — Rounded, blackish ; head dark piccous ; elytra with two stria) and a half. Inhabits North Carolina, Harris. Body rounded, very little oval, convex, punctured j with short, yellowish hairs : antennas dull rufous ; not very robust ; basal joint piceous ; antepenultimate joint extending inwards into a conic process, and exhibiting the form of an equilateral triangle, shorter than the preceding part of the antennae; two ultimate joints equal : elytra with three lateral striae, of which the supe- rior one is half the length ; humerus elevated, compressed, acute. Length less than one-tenth of an inch. The D. hicolor Germar has a sanguineous thorax, and the oculata S. is larger, its antennsG more robust, and the terminal joint arcuated. HYLECCETUS Latr. H. LUGUBRis.— Elytra and postpectus black ; abdomen and feet honey-yellow. Inhabits Indiana. % Body punctured, with short hairs ; labrum tinged with pi- ceous : antennae, third joint obscure yellowish ; vertex with a glabrous line : thorax with an indented line and a little unequal each side ; scutel glabrous and carinate in the middle : elytra with slightly elevated lines; wings dusky, nervures black: be- neath black : feet and abdomen honey-yellow. [ 167 ] Length from two-fifths to nearly half an inch. 2 Head rufous: antennas black, three basal joints yellowish : thorax and pectus rufous. Yar. a. Elytra dull yellowish on the basal half. I observed it in considerable numbers, on the 16th of April, flying about a prostrate sugar maple, and running briskly upon it. It is infested by a species of Gmnasus. [Unknown to me. — Lec] [Yol. I. OF NATURAL HISTORY. 643 CUPES Fabr. 1. C. CINEREA. — Brownish-cinereous; elytra with fuscous spots and undulations. Inhabits Indiana, Ohio, and Louisiana. Body pale brownish-cinereous ; head on each side above the eyes, with a series of three tubercles, of which the posterior one is convex, the middle one is most prominent and acute, and the anterior one is at the superior base of the antennae ; eyes promi- nent, black, polished; antennae nearly as long as the body, robust: thorax with a carinate line on the middle, widely impressed each side and with four indentations on the anterior margin ; anterior angles emargiuate : elytra with elevated lines and intervening series of large regular punctures, several abbreviated dark red- dish-brown lines and spots which form about three undulated bands, of which one is near the base, one on the middle, and one near the tip : venter paler, somewhat testaceous. Length over seven-twentieths of an inch. This is the second species of this rare genus that has yet been discovered ; I obtained numerous specimens in the vicinity of New Harmony, Indiana, and one near Springfield, Ohio, and the specimen from Mr. Barabino proves that it inhabits a considerable portion of the [ 168 ] Union. The species is widely diiferent from the capitata, which I have not found in this region. [The following description of the foregoing species was found among Mr. Say's papers, and, as it contains some particulars not noticed above, we have thought proper to insert it m this place. — Puh. Com. 2 C. CINEREA. — Cinereous; elytra with abbreviated blackish lines. Inhabits Indiana. Body cinereous, covered with minute scales : head inequal : thorax inequal, anterior angles not excurved : elytra with largely punctured striae, the interstitial lines convex, subequal, the alter- nate ones a little larger; numerous abbreviated fuscous or black- ish lines, hardly to be traced into three or four very oblique bands. Length seven-twentieths to two-fifths of an inch. 1835.] 644 BOSTON JOURNAL A larger species than the capitata Fabr., and very distinct, though the inequalities of the head and thorax are somewhat similar. It is common about old frame houses. I have received a specimen from Mr. Barabino. [6'. concolui- Westwood, Zool. Journ. 5, 440, and C. ti-ilincuta Mels., do not appear to diflfer from this species. — Leg.] SILPHA. S. CAUDATA S., Jour. Acad. Nat. Sci. 1823. S. TUBERCULATA Germar, Sp. Novae, 1824. IPS Fabr. 1. I. OBTUSA. — Black ; elytra each with two nearly orbicular rufous spots. /. 4-notata ? Melsh. Catal. Body oval, convex : antennae piceous : head and thorax [ 169] with small, regular, subequidistant punctures : elytra punctured, regularly rounded at tip, and rounded at the sutural angle : slightly elevated transversely on the posterior margin ; each ely- tron with two rufous, rounded spots, of which one is at the mid- dle of the base, and the other beyond the middle of the elytron ; beneath piceous black. Length from three-tenths to seven-twentieths of an inch. The largest species I have seen ; the name A-notata is preoccu- pied. 2. I. 4-siQNATA. — Black ; elytra each with two yellowish spots, of which the basal one is sublunate. /. A-nignata Melsh. Catal. Body oval, deep black : antennae piceous : head and thorax with small, regular, subequidistant punctures : elytra punctured, very obtusely rounded at tip, almost truncate ; each elytron with two yellowish spots, slightly tinged with rufous ; the basal one arcuated so as to enclose the humerus ; posterior one behind the middle transversely oval, not sinuated ; terminal lateral margin obscurely piceous : beneath pieeous-blackish. Length slightly more than one-fifth of an inch. Very similar to the Nitidula fanciata Oliv., but it may be dis- tinguished by its uniformly small spots. The Engis conjluenta [Vol. L OF NATURAL HISTORY. 645 nob., strictly belongs to this genus, as well as the Nltidulafasci- ata and samjuinolcnta of Olivier. 3. I. 4-MACULATA. — Bkck J elytra with a basal and terminal ferruginous spot. /. i-macuJata Melsh. Catal. Body black, polished, oblong-oval, punctured : clypeus, at tip, tinged with piceous; antennae piceous : elytra [170] with a large ferruginous spot at the middle of the base, and another some- what longer one at tip of each : feet and tip of the venter rufous. Length more than one-tenth of an inch. [Belongs to Engis. — Leg.] 4. I. viTTATA. — Blackish-brown ; elytra with whitish, abbre- viated vittae. Inhabits Arkansaw. Body dark brownish ; elytra with a whitish vitta abbreviated beyond the middle and abruptly curved at base towards the scu- tel : another much abbreviated, somewhat oblique one, hardly reaching the middle of the humerus, and an intermediate one hardly more than one-fourth of the length of the elytra; tip obliquely truncated. Length less than three-twentieths of an inch. This species was presented to me by Mr. Nuttall, who obtained it during his expedition to Arkansaw. [Unknown to me. — Leg.] HYDROPHILUS Fabr. H. CASTUS. — Oblong-oval, black; palpi rufous; thorax with an oblique line each side. Inhabits Louisiana. Body black, polished : head with a dilated, hardly impressed oblique line each side before, in which are scattered punctures with short hairs, another narrower impressed line nearer the eye: antennae, first joint of the club with an acute ciliated process: second joint triangular, small, the anterior angle prominent, acute; terminal joint subovate, rounded at tip: palpi rufous, last joint hardly as long as the preceding one : labrum slightly and very widely emarginate, the anterior edge piceous, and about two small punctures on the middle : thorax with a rather slender 1835.] 646 BOSTON JOURNAL arcuated line each side beforehand laterally [171] witli a few scattered, slightly impressed punctures : scutel rather large : ely- tra with^ four striae of impressed punctures and an approximate marginal one : feet, excepting the base of the thighs, piceous. Length nearly three-fifths of an inch. A specimen was sent to me by Mr. J. Barabino. The whole surface is covered with very minute crowded punctures, not at all visible without a jw'etty good lens. [Does not differ from ll^drocliares ohfusatiis, ante, 130. — Leg.] HYDROPHILUS Fabr. 1. H. MERGUS. — Black, highly polished ; sternum not reach- ing the middle of the venter. Inhabits Mexico. Body highly polished, black, oblong-oval ; head with an ab- breviated line of impressed, confluent punctures on the inner or- bit ; a much arcuated line of punctures from the anterior can- thus terminates between the eyes ; thorax with a much abbrevi- ated, oblique line of punctures each side ; elyti'a with three se- ries of distant, obsolete punctures ; exterior series remote from the others ; sternum not canaliculate, not extending to the mid- dle of the venter; feet more or less piceous. Length nearly seven-twentieths of an inch. In comparison with H. natator nob., which it closely resem- bles, the surface is more highly polished, the sternum much shorter and without any appearance of a groove between the an. terior pairs of feet. 2. H. EXSTRiATUS. — Subsutural stria none, black; thoracic edge and beneath piceous. Inhabits Louisiana. Body short-oval or rounded, convex, glabrous, black ; [172] with small, equal, equidistant, numerous punctures ; polished ; palpi and base of the antennae pale yellow ; three last joints of the latter fuscous ; thorax piceous on the lateral and posterior margins ; scutel small, with but few punctures ; elytra destitute of strias, and without any appearance of one on the sutural mar- [Vol. I. OF NATURAL HISTORY. 647 gin ; punctures on the basal margin obsolete ; beneath pieeous ; tarsi yellow, brighter beneath. Length less than three-twentieths of an inch. This species was sent to me by Mr. Barabino. It is smaller than the orhicidarls F., which it resembles much in the punctur- ing and form ; but that species has the subsutural stria extend- ing from before the middle to the tip of the elytra. [Belongs to Cydonolum. — Lec] 3. H. Fuscus nob. — Corresponding, almost unvariedly, with specimens found in Pennsylvania. I obtained it in company with IL/drocanfhus atnpennis nob. SPILERIDIUM Fab. S. MELLIPES. — Black ; beneath honey-yellow. Inhabits Mexico. Body very minutely, and densely punctured, black ; antennae and palpi honey-yellow ; thorax with the anterior and lateral margins obsoletely pieeous ; an impressed puncture on the lateral margin before the posterior angle ; elytra with punctured striae, and minute, dense punctures on the flat interstitial spaces ; im- maculate; beneath honey-yellow. Length less than one-fifth of an inch. The largest North American species which I have seen ; rather larger than S. hi-pustulatum Fabr., but somewhat less robust. [173] ONTHOPHzlGUS Latr. 1. 0. INCENSUS. — Clypeus with two elevated, transverse lines ; thorax with an anterior double prominence. Inhabits Mexico. Body black, polished, punctured; head with two transverse, elevated lines ; posterior line between the eyes, and slightly emar- ginate in its middle ; anterior line a little more elevated in the middle, equidistant from the tip of the clypeus and posterior line ; tip slightly contracted ; antenna? ferruginous ; thorax on the mid- dle of the anterior submargin with a transverse, sub-bilobate, or slightly and widely emarginate elevation ; an indented dot each side; elytra with punctured striae; interstitial spaces plane, mi- 1835.] 648 BOSTON JOURNAL nutely punctured ; head and thorax with a hardly perceptible tinge of green. Length over three-tenths of an inch. The specimen is probably a female. It is smaller than the 0. taurm Linn., the female of which it resembles in the form and disposition of the lines of the clypeus. It is much larger than 0. latebroms Fabr., from the female of which it differs consider- ably in the form of the elevated lines of the head, but agrees in having a thoracic prominence ; this prominence, however, is more obvious, and widely emarginate. 2. 0. VIRIDICATUS. — Green; clypeus bidentate ; elytra smooth. Inhabits United States. Scarahseus smaragdulus Fab. Melsh. Catal. Body robust, green ; head bidentate at tip ; antennae black- ish ; thorax on the lateral edge a little angulated before the mid- dle ; elytra smooth, impunctured, or with [174] three or four hardly perceptible impressed lines ; beneath dark green. Length nearly one-fifth of an inch. Certainly not smaragdulus of Fab., but it is related, in point of size and form to Cojms suhseneus Pal. de Beauv., of which, how- ever, he remarks, " Clypeo integro, transverse bicarinato," and " ses 6lytres sont d'un noire terne, lesstries peu marquees, et une rangee de points eleves entre chacune/' which prove it to be very different from our species. [A species of Canthon previously described as Atexiclms viridis Beauv. — Leg.] 3. 0. OVATUS Fabr. Our specimens are subject, like the European, to vary consid- erably in magnitude and some other characters ; but I have not observed any trait which can justify the separation of it from the Fabrician type. Var. a. — Elevated linesof the clypeus obsolete or entirely want- ing. Var. j3. — Anterior elevated line of the head obsolete. Var. y. — Head bidentate before. Var. S. — Posterior elevated line of the head interrupted in the middle. [Vol. L OF NATURAL HISTORY. 649 Var. £. — Elytra with dull ferruginous spots, Arkansaw. It appears to be an inhabitant of nearly all parts of the Union. COPRIS Fabr. 1. C. COLONICA. — Thorax somewhat retuse ; head with a short elevation between the eyes. Inhabits ^Mexico. Body black ; head a little rugose, with a slightly elevated, com- pressed, rounded horn, broader than high, situated between the eyes and not surpassing the line of [175] their anterior canthi ; tip of the clypcus rather acutely rounded ; thorax somewhat ab- breviated dorsal line behind the middle, and a deeply indented, oval impression on the middle of the lateral margin ; punctures small, very numerous ; elytra with indented, punctured striae ; interstitial spaces convex. Length nine-tenths of an inch. Resembles G. caroUna Fab., but is not so robust, and the tho- rax is much less elevated behind. The horn of the head, also, in Carolina is equidistant between the eyes and the tip of the clypeus. - It is also like Nkanor ? as figured by Drury i. pi. 35, fig. 1. 2. C. INCERTA. — Thorax simple, with an impressed line ; head horned ; elytra striate. Inhabits Mexico. Body black, somewhat polished ; head with dense, shallow punctures ; a short, conic, vertical horn on the middle ; tip of the clypeus acutely and rather deeply emarginate ; thorax punc- tured except on the posterior disk ; a deeply impressed line from a little before the middle to the base, and an impressed oval spot each side ; anterior margin rather abrupt ; elytra with deeply impressed, crenate striae ; interstitial spaces convex, impunc- tured. Length nearly seven-tenths of an inch. I should be inclined to consider this as as the female of the procidua nob., but in that species the larger horn is very near the anterior termination of the head, and the posterior horn is much shorter and remarkably inclined ; whilst in the present in- sect no tubercle exists to mark the locality of the larger horn, and 1835.] 650 BOSTON JOURNAL the liorn that it possesses is larger than the posterior horn of that insect, with which it corresponds in locality but not in di- rection. [176] 3. C. QUADRiDENS. — Thorax angulated, four-toothed ; head horned. Inhabits Mexico. Body blackish-viokceous ; head densely punctured, and with an elongated, recurved, trigonate horn, which is as long as the thorax, punctured and acute ; thorax rugose, angulated ; poste- rior angles compressed, elevated, subacute ; on a line between them are two remote, short, vertical, conic denticulations ; ante- rior margin near the middle with two short, vertical, conic den- ticulations separated by a raised line ; elytra with obsolete striae. Length seven-tenths of an inch. A fine species, not so brilliantly colored as the carnifex Fabr,, or even as the triangularis nob., from both of which it is emi- nently distinguished by the thoracic denticulations. 4. C. PROCIDUA. — Thorax three-hoi-ned ; head two-horned. Inhabits Mexico. Body black ; head punctured, two-horned ; anterior horn ver- tical or hardly recurved, not as long as the head ; posterior horn very short, inclined ; thorax punctured, with three horns, the middle one very obtuse and emarginate, lateral ones acute, in a transverse line on the anterior submargin ; anterior margins de- clivous ; anterior angles rounded; an impressed, abbreviated, dorsal line and a lateral indented spot ; posterior disk impunc- tured ; elytra with impressed, punctured striae ; interstitial spaces convex, impunetured. Var. a. Highly polished. Length more than three-fifths of an inch. The armature of the thorax is very similar to that of C. luna- ris Linn., but it is less robust, and is widely distinguished [177] from that species, by having two horns on the head. The variety resembles C. Ammon Fabr., anaglyptka nob., in the thoracic sculpture. [Vol. L OF NATURAL HISTORY. 651 APHODIUS Illig. 1. A. INNEXUS. — Black; elytra with a dull yellowisli margin. Inhabits Mexico. Head widely emarginate before, punctured ; disk convex im- puuctured : antenna; cinereous at tip ; palpi honey-yellow : thorax punctured, excepting on the disk, anterior margin and middle of the lateral margin ; margin, at the anterior angles, obsoletely dull honey-yellow : scutel impunctured : elytra with impressed, very regular crenate striae, exterior and terminal margins rather pale honey-yellow ; this color dilates towards the tip, and is deeply undulated on the inner edge : feet honey -yellow. Length less than one-fourth of an inch. About the size of ^4. ater Fabr. 2. A. SERVAL. — Black; elytra dull whitish, with black spots. Inhabits Indiana. Body piceous black, punctured ; head widely emarginated before, and with a dull rufous margin ; thorax with a dull rufous lateral margin : elytra yellowish white, with seven or eight subquadrate black spots, and a lateral, abbreviated, black, double, confluent vitta : with slender punctured stride ; interstitial lines flat, im- punctured. Length over three-twentieths of an inch. Very closely allied to the inquinatus Fabr., and resembles also A. contaminatus Fabr., but the clypeus is much more deeply emarginated, and is acutely angulated [178] at each end of the emargination. This latter species is hairy. PSAMMODIUS Gyll. P. INTERRUPTUS. — Thorax with three lateral, transverse undu- lations. Inhabits Indiana. Body dark chestnut, punctured : head deeply and somewhat acutely emarginated ; with very numerous raised points : thorax with about three, lateral, transverse, but little impressed grooves, obsolete above; with a dorsal, longitudinal, impressed line, obsolete before; edge ciliated; surface somewhat rough; elytra grooved, and somewhat punctured. 1835.] G52 BOSTON JOURNAL Length three-twentieths of an inch. In the sulcicollis 111., the thoracic grooves are not interrupted on the back ; it is also smaller than the present species. ODONT^US Meg. 0. MUSCULUS. — Small, brown, with short hairs; elytra with punctured striae. Inhabits Indiana. Body small, light chestnut brown, darker before, with very numerous short hairs, punctured : head, between the eyes, with a hardly elevated, arcuated line, above which is a transverse indentation, then a hardly perceptible raised line : labrum emarginate; mandibles concave above, convex beneath, regularly arcuated, exterior edge entire : clypeus not trilobate at tip, entire : antennae yellowish at tip : thorax convex, laterally a little dilated towards the base; an indentation on the middle of the lateral submargin ; elytra with somewhat impressed and punctured [179] striae, which are obsolete on the humerus ; interstitial lines depressed, with minute punctures furnishing hairs. Length over one-fifth of an inch. A rare insect; I have found but one specimen, which is probably a female. It is even smaller than the O.filicornis nob., and in form more like the Lazarus Oliv. than the cephus Oliv. [A species of Ochodsens, afterwards described as 0. americaniis Westwood, Trans. Ent. Soc. London, 2d ser. 2, 66. — Leg.] TROX Fabr. 1. T. ALTERNATUS. — Elytra with cinereous, elevated lines interrupted by black spots. Inhabits United States. Body black, or black slightly tinged with brown : head bituber- culate : thorax with obtuse, elevated, interrupted lines, irregularl}- punctured ; posterior angles obtusely dentate : scutel, posterior margin cinereous : elytra striate with dilated punctures ; alternate interstitial lines more elevated, cinereous, interrupted by black spots. Length over half an inch. This species is readily known by the cinereous and black alternation of the more elevated interstitial spaces. A variety [Vol. I. OF NATURAL HISTORY. 653 occurs, of which the elytral punctures are much less dilated, and the thorax is less deeply sculptured. I have found the species in Pennsylvania; Nuttall obtained it in Arkansaw, and Mr. Barabino sent me an individual taken near New Orleans. A label, attached to a specimen in my cabinet, states that it cannot be the crenatus Oliv., with which I am now unacquainted. [Belongs to Omorgus, and was previously described as T. pHMctatus Germ. — Leg.] 2. T. GLOBOSUS. — Blackish-bronze ; elytra denticulated on the lateral edge. Inhabits Pennsylvania. [ 180 ] T. glohosus Melsh. Catal. Body blackish-bronze, punctured : head entire, unarmed ; thorax with an impressed line on the anterior lateral submargin : elytra with oblong, deeply impressed, rather distant punctures ; posterior declivity with four or five elevated, converging lines^ the two exte- rior ones continued towards the humerus ; exterior edge with numer- ous, approximate teeth : posterior tibiae much dilated and compressed. Length about one-fifth of an inch. [Belongs to Acanthocerus. — Leg. J 3. T. SPLENDIDUS. — Dark brassy ; elytra with series of punc- tures, and on the posterior declivity with elevated lines. Inhabits United States. T. splendidus Melsh. Catal. Body rather short, oval, polished, dark bronze j punctured : head unarmed, entire : thorax with an impressed line on the anterior lateral submargin : elytra with regular series of rather long, deeply impressed, approximate punctures ; on the posterior declivity four or five elevated, converging lines, the exterior one extending towards the humerus; posterior tibias much dilated and impressed. Length nearly one-fifth of an inch. Readily distinguishable from the preceding by the more approxi- mate punctures of the elytra, and the simplicity of the lateral edge. They both exhibit a remarkable difference, in their smooth surface, from the greater number of the species of this genus. [Also an Acanthocerus, previously described as Mclolontha aphodioides llliger, and Scarabseus latipes Germ., and subse- quently as A. Imvistriatus Lap. — Leg.] 1835.] G54 BOSTON JOURNAL MELOLONTHA Fabr. M. INTEGRA. — Reddish-brown, hairy ; clypeus entire. Inhabits Mexico. [181] Body reddish-brown, hairy on every part: head with rather large dense punctures; tip of the clypeus obtusely rounded; thorax with the hair equal, reflected : scutel with rather short hair : ely- tra destitute of elevated lines; hair longer near the base : post- pectus with long hair : feet with sparse hair. Length less than three-fourths of an inch. Distinguishable from all the other known North American species by its rounded clypeus colnbined with its universal hairy vesture and magnitude. ANOMALA Meg. 1. A. GEMELLA. — Yellowish-white, varied with blackish, ely- tra with geminate striae. Inhabits Mexico. Body pale, varied with blackish : head punctured, cupreous : thorax with minute, distant punctures ; edge blackish-cupreous ; disk blackish ; this color reaches the middle of the anterior mar- gin, is sinuate on the sides and profoundly so behind ; a blackish dot on the middle of the lateral submargin : scutel piceous : ely- tra with rather distant, large and blackish punctures ; three double series of impressed punctures similar to the others, but approximate, and a single subsutural series ; edge all around blackish, a humeral spot and middle of the exterior margin blackish. Length half an inch. In some respects resembles A. -umfasciahis nob., but it is larger, with a shorter head, and is very different by other characters. 2. A. CINCTA. — Bluish-green, elytra pale brownish. Inhabits Mexico. [182] Head cupreous, punctured : thorax slightly punctured, bluish- green : scutel bluish-green, punctured : elytra pale brownish, or a little testaceous, with punctured striae and a broad line of ir- [Vol. I. OF NATURAL HISTORY. 655 regular punctures near the suture: suture and edge all around and spot on the humerus blackish-green : antennae and palpi fer- ruginous. Length over half an inch. This insect and the preceding may be only varieties ; never- theless, having three specimens that are similar to each other, I may state that it differs from A. gemella nob., in the more ob- viously punctured thorax, in not having the stride of the elytra so obviously in pairs, and in the color. HEGETER Latr. H. PUNCTATUS. — Thorax transverse; elytra punctured, and with obsolete series of punctures. Inhabits Mexico. Body black, densely punctured : antennjB and palpi piceous ; terminal joint of the maxillary palpi rather large : thorax trans- verse, convex : elytra irregularly punctured, and with regular series of punctures: feet piceous. Length less than one-fourth of an inch. EURYCHORA Thunb. ■ E. iN^^QUALis. — Body inequal, with elevated points and lines, and indentations and punctures. Inhabits Mexico. Body black, oblong-oval; head minutely rugose, with an obtuse indentation each side: thorax inequal, with [183] elevated obtuse lines and indentations, and numerous small, elevated dots; pos- terior angles acute : elytra with many small elevated dots, and deeply impressed, distant punctures; several elevated, obtuse^ abbreviated lines, of which the largest one is near the middle and extends to the posterior declivity ; on this declivity are three large, elevated tubercles ; an abbreviated line extends from the humerus, and a very short basal one is nearest the suture : beneath, with numerous, small, elevated dots. Length three-fifths of an inch. This occurred in abundance in an elevated situation, under old logs. [p]vidently a species of A^osoderma. — Lec] 1835.] 656 BOSTON JOURNAL BLAPS Fabr. 1. B. RUIDA. — Elongated; elytra rugose. Inhabits Mexico. Body black, punctured : thorax somewhat longer than broad, punctures confluent each side and behind ; a transverse, sub- basal, indented band, obsolete in the middle; lateral margin rounded, the marginal, hardly elevated line being so low on the side as not to be visible from above : elytra convex, covered in every part with irregular rugosities. Length less than one inch. [These species all belong to Eleodes. — Leg.] 2. B. IMPOLITA. — Opaque ; thoracic basal angles slightly ex- curved ; elytra simple. Inhabits Mexico. Body black, nearly opaque, very minutely punctured : head, transverse line between the antennae, obsolete : thorax rather wider than long, greatest width a little before the middle; lateral edge a slightly elevated line, abruptly a little exeurved at the posterior angle, exhibiting [184] in that part a very small, acute, lateral projection : elytra smooth to the eye, but on close inspec- tion minutely and irregularly rugose and punctured ; lateral margin rounded. Length over three-fifths of an inch. Much like B. sequalis, but distinguishable by its almost total want of polish, the minute prominence of its posterior angle, and the microscopic roughness of its elytra. 3. B. MAURA. — Elytra with impunctured, obtuse striae. Inhabits Mexico. Body black: head punctured, an impressed line between the antennae : thorax with hardly discernible punctures ; wider than long; posterior angles not rounded; lateral edge a vertically ele- vated line, not in the slightest degree curved outwards near the posterior angle : elytra somewhat depressed, obtusely striated or grooved, the grooves impunctured, but viewed in a particular direction they appear obsoletely rugose; interstitial lines convex; lateral margin rounded and evidently irregularly punctured ; epi- pleura impunctured ; feet punctured. Length more than three-fifths of an inch. [Vol. I. OP NATURAL HISTORY. 657 4. B. OBLITERATA. — Elytra with obsolete grooves ; lateral margin rounded. Inhabits Mexico. Body black, immaculate : head slightly punctured ; an impres- sed line between the antennas: thorax wider than long; lateral edge a slightly elevated line, a little excurved at the posterior angle, which is consequently somewhat acute : elytra with obso- lete groove?, minutely punctured; lateral margin rounded and smooth : thighs not obviously punctured. [185] Length less than three-fifths of an inch. Resembles the preceding, but difi'ers in the excurvature of the lateral thoracic edge near the posterior angle, and in the grooves of the elytra being obsolete. 5. B. CELSA. — Body somewhat elongated ; elytra with traces of grooves and punctures. Inhabits Mexico. Body brownish-black, minutely punctured, somewhat elongated: head with the impressed line between the antennae obsolete: an- tennae at tip, and palpi piceous : thorax rather wider than long ; lateral edge a slightly elevated line, not excurved at the posterior angles; an obsolete, abbreviated, oblique, impressed line near the posterior angles ; somewhat attenuated behind ; lateral margin rounded. Length more than three-fifths of an inch. More slender than the maura and ohliterata, which have no appearance of an indentation near the posterior angles of the thorax. 6. B. u^QUALis. — Elytra smooth, simple; thoracic basal angles rot excurved. Inhabits Mexico. Body black, minutely punctured : head with the impressed line between the antennae, obsolete : thorax broader than long, broadest in the middle ; lateral edge a slightly elevated line, not at all excurved near the posterior angle; elytra destitute of any appearance of the rudiment of a groove or of striae ; rounded on the lateral margin. Length over three-fifths of an inch. 1835.] 42 668 BOSTON JOURNAL Shorter and more robust than B. celsa noh. ; allied [185] ruore closely to B. ohliteratn nob. ; but the elytra of that species are much more rough, and its posterior thoracic angles are slightly cxcurved, 7. B. PARVA. — Lateral thoracic edge reclivate ; elytra with punctured strias. Inhabits Mexico. Body black, punctured : head with two obsolete indentations between the antennas : thorax emarginate before for the recep- tion of the head ; anterior angles acute ; lateral edge with a hardly prominent line, curved convexly before and concavely be- hind, forming an acute posterior angle ; greatest breadth rather before the middle : elytra with large punctures in regular series ; interstitial lines irregularly punctured. Length nearly three-tenths of an inch. The smallest species I have yet met with in North America. Of this genus I have described sixteen North American species, each of which has only the three ultimate joints of the antennae moniliform ; whereas in all the exotic species of my col- lection, nine in number, the four ultimate joints are moniliform. OPATRUM Fabr. 1. 0. STRIATUM. — Clypeus obtusely emarginate ; elytra with punctured striaa. Inhabits Mexico. Body punctured, black, with a slight brassy tinge : head densely punctured ; emargination of the tip much dilated ; tho- rax densely punctured, posterior edge not deeply sinuated : ely- tra with impressed, punctured strias : tarsi piceous. [1S7] Length three-tenths of an inch. Resembles 0. puUum nob., but is smaller, and the base of the thorax is more rectilinear. 2. 0. NOTUM nob. Specimens found near New Orleans vary from those of more northern regions, in being a little polished, and in having the elytra! punctures larger. [Vol. I. OF NATURAL HISTORY. 659 TENEBRIO Lin. 1. T. SUPPRESSUS. — Thorax large; clypeus entire; elytra with punctured striae. Inhabits Mexico. Body black : head densely but minutely punctured ; clypeus a little reflected and entire: labrum nearly concealed: thorax densely and minutely punctured ; rather large ; a large, slightly indented spot on the posterior submargin ; posterior angles acute; posterior margin with an impressed line : scutel triangular : ely- tra with impressed, punctured, and crenate strife ; interstitial spaces convex, impunctured ; lateral edge acute : anterior tibiae with a strong tooth. Length half an inch. In comparison with T. rejlexus nob., the thorax is larger, more arcuated on the lateral edge, and more narrowed behind ; the anterior tip of the clypeus is not so prominently reflected, and the contraction towards the junction of the thorax and abdomen is more obtuse. 2. T. RUFiNASUS. — Suboval; black; head before, antennae and feet ferruginous. Inhabits Louisiana. Body oval, a little oblong ; densely punctured : head on the anterior part obscure rufous ; antennae obscure, [188] ferrugin- ous; joints transverse, subtriangular or conic : palpi and mentum ferruginous : thorax regularly punctured ; basal edge undulated ; basal angles rectangular : scutel densely punctured : elytra with regular series of punctures ; interstitial spaces slightly convex, particularly the lateral ones, and with three or four irregular series of small punctures : beneath ferruginous, punctured. Length over one-fifth of an inch. Sent to me by Mr. Barabino from New Orleans. [Belongs to Heteropliaga. — Lec.J ULOMA Meg. U. FERRUGINEA Fab. Several specimens occurred at Vera Cruz, but I suspect it to be a naturalized foreigner, as it is with us. 1835.] GGO BOSTON JOURNAL t a^]DEMERA Oliv. (E. APiCALis. — Pale reddisli-brown ; elytra black at tip and ■with four elevated lines. Inhabits United States. Body rufo-testaceous, densely punctlired: eyes obvious emar- ginate : mandibles black at tip : thorax dilated each side before the middle, narrowed behind: elytra with four narrow, slightly elevated lines, on each side of which is a series of more obvious punctures ; third line obsolete before the middle ; tip black ; postpectus, abdomen and feet black, a little sericeous : wings blackish. Length about half an inch. I have found it in Pennsylvania and other parts of the Union, and Mr. Barabino sent me an individual from Louisiana. [This is the common Naccrdes melanura, imported from Europe. — Leg.] [189] LACxRIxi Fabr. To this genus, as it is at present constituted, it seems probable that the following species belong, rather than to Anthicus, under which I published an account of them, stating, at the same time, that they differ from the other species of the genus that had fallen under my observation, viz : — Lagria luguhris, L. collaris, L. terminalis, L. kibiata, and L. ■impressa nob., but the orbicular thorax, the nails being armed with a tooth or abrupt angle beneath, &c., seem to justify, if not the formation of a new genus, certainly a division of the present, under the name of Corjihi/ra. [As will be seen ante, 311, these species all belong to Fcdilus. Leg.] RHIPIPHORUS Fabr. R. LIMBATUS Fabr. — Sanguineous ; thoracic disk and margin of the elytra black. Inhabits the United States. Body rather slender, yellowish-sanguineous : antennse black, basal joint yellowish : mandibles black at tip : thorax deeply si- [Vol. I. OF NATURAL HISTORY. 661 nuated betiiul, and with a more or less dilated, black spot on the middle : elytra with a whitish disk, more or less broadly mar- gined with black : thighs at tip, tibiae except at base, and tarsi, except the base of the first joint, black. Length to tip of elytra a quarter of an inch. Var. o. Vertex black. Var. 0. Elytra black, immaculate. Var. y. Beneath varied with black. Fabricius was unacquainted with the native country of hi?* Umbatus, but as his description agrees very well with [190] our insect, and was made out from a specimen belonging to the same collection in which he described his dimidiatus,! have no doubt that it was intended to indicate this species. Dr. Melsheimer was of the same opinion, and has recorded the name in his cata- logue. I introduce the description for the purpose of preserving the Fabrician name for a species not commonly known. MORDELLA Latr. 1. M. HiLARis. — Blackish, silvery-sericeous ; elytra with a di- lated, irregular, dull yellowish band margined with whitish. Inhabits Indiana. Body black, somewhat purplish-iridescent, sericeous : head dull yellowish-sericeous : thorax varied with gray hairs : scutel silvery : elytra with a much dilated, dull golden sericeous, oblique band, occupying about one-third, spread widely towards the scutel, and margi ned before and behind with a whitish line, the anterior line much angulated and the posterior one reclivate ; tip rounded : beneath with purple and green reflections, and sil- very-sericeous. Length about two-fifths of an inch. This has some resemblance to M. hidentata nob., but it is widely distinct by the elytral band and the much more dilated terminal joint of the maxillary palpi. It is common about the flowers of the Hydrangia cordata Ph. Its movements are rapid. 2. M. OCULATA. — Black; elytra bifasciate, anterior bands with two dots. Inhabits Pennsylvania and Indiana. M, fasciata Melsh. Catal. [ 191 ] 1835.] 662 BOSTON JOURNAL Body black, whitisli sericeous : antennae dull rufous, dusky to- wards the tip : thorax with two slightly indented dots a little be- hind the middle : elytra with a yellow-cinereous band a little be- hind the middle, interrupted at the suture and contracted on each side, and a much larger basal band extending posteriorly on each elytra in a point, nearly to the middle, and having a subbasal obvious, definite, black dot each side of the suture : tibiae and tarsi dull rufous. Length over three-tenths of an inch. The two black dots on the basal band of the elytra are very obvious, and serve to distinguish it from M. fasciata Fabr., which it certainly resembles, and to which it has been referred. 3. M. SERVAL. — Blackish, spotted with yellowish. Inhabits Indiana. Body brownish-black : antenn o and palpi pale, dull rufous : thorax with numerous spots of short, yellowish hairs : elytra with numerous subequal spots of short, yellowish hairs, a dentated band behind the middle, and narrow terminal margin : beneath sericeous : venter each side with obsolete oblique, brown lines : tarsi, color of the antennae. Length three-twentieths of an inch. A very pretty species. APATE Fabr. K. BICAUDATA nob. — A variety of this species occurred in Mexico. It is large, the feet are nearly black, and the punctures of the elytra are somewhat larger than in those of this country. P AR ANDR A Latr . [ 1 92 ] P. POLITA. — Ferruginous, head and thorax impunctured. Inhabits Indiana. Body ferruginous, polished : head blackish-ferruginous, almost impunctured, excepting behind the eyes, where the punctures are numerous ; a longitudinal, slightly indented line before : an- tennae ferruginous at tip : mandibles with a large, prominent, rounded tooth near the base ; then a profound, rounded sinus, then a subterminal tooth : palpi ferruginous : thorax blackish-fer- ruginous, impunctured, gradually a little narrowed behind ; an ob- [Yol. I. OF NATURAL HISTORY. 663 solete indentation in the middle of the lateral margin ; lateral margin decurvred, the edging line hardly prominent, so that, when viewed from above, it is not visible ; posterior angles almost rounded : posterior edging line hardly visible : scutel small : elytra minutely punctured ; pectus and postpectus dark ferruginous. Length about seven-tenths of an inch. This species, by its size and color, may be readily mistaken for the P. hruunetis of authors, but it differs in many characters. It has a more slender thorax, which is not wider than the head. The teeth of the mandibles are but two, the basal one being very large and remote from the other, so that when the mandibles are closed, an oval interval appears, as in the fen'itjmea Sturm., which species, however, has the posterior angles of the thorax very obtusely rounded.' The P. brunnea has three subequal, subequidistant teeth in the mandibles; the head and thorax ob- viously punctured, the latter broader than the head, &c. The species is rare. [193] PRIONUS. P. DASYSTOMUS nob. — Occurred near Natchez, on the Missis- sippi. MONEILEMA Say. M. iNEQUALis. — Cinereous ; rough, with elevated points and tubercles. Inhabits Mexico. Body pale, brownish-cinereous : eyes small, distant from the antenna} : antennas nearer to each other than to the eyes ; first joint robust, longer than the second and third together ; half the length of the body : thorax cylindric-oval, covered with small, unequal, irregular elevations : elytra with many elevated tuber- cles, of which some form a regular arcuated series from near the humerus to the tip, and parallel with the suture beyond the mid- dle ; tip entire, as long as the abdomen. Length seven-tv>'entieths of an inch. Inasmuch as this species is apterous and has a similarity of habit, I place it in the present genus, although the approxima- tion of the antennae is an obvious distinction. 1835.] 664 BOSTON JOURNAL CLYTUS Fabr. 1. C. CHARUS. — Thorax yellow, with three black dots ; elytra black ; base, band behind the middle, and tip yellow. Inhabits Indiana. Body covered with short, dense, prostrate hair : head black ; a band on the vertex curving under the head, an abbreviated line above the antennae, and front yellow : thorax yellow, with three dorsal, transverse, abbreviated, [194] parallel, blackish bands : elytra black ; basal third a narrow, undulated band behind the middle, and tip in which is a small black spot, yellow ; a black dot on the humerus : beneath yellow sutures and feet black. Length nine-tenths of an inch. Somewhat like C. decorus Oliv., and sjjeciosus nob., but the bands of the elytra and other characters are essentially different. I first observed it near the end of August. It is a remarkably fine insect. [Belongs to Arhopalus as enlarged by me.] 2. C. CAPREA nob. — Occurred at New Orleans. STENOPTERUS Illig. (NECYDALIS Fabr.) S. SANGUiNlCOLLis. — Blackish, thorax sanguineous. Inhabits Indiana. Body black, with cinereous hairs, punctured : thorax sanguine- ous, inequal, with three more obvious elevations : elytra with a longitudinal, slightly elevated line; disk obscurely tinged with brownish : feet yellow ; club of the thighs and tip of the tibice Idack. Length seven-twentieths of an inch. It is more slender than S. jjr-seustus Fabr. ; but the thoracic and elytral elevations are somewhat similar. MOLORCHUS Fabr. M. MELITUS. — Black ; abdomen, feet and basal joint of the antennae honey-yellow. Inhabits Indiana. Body black : head indented between the antennse : antennae about as long as the body, basal joint rufous ; thorax subcylindric, contracted before the middle, and with an indented longitudinal [Vol. I. OF NATURAL HISTORY. 665 line : elytra -with a dull [ 195 ] honcy-ycllow vitta, external edge and obsolete spot on the basal middle : postpectus sericeous : feet honey-yellow ; tip of the posterior thighs, their tibiie and tarsi dusky : abdomen honey-yellow. Length % nearly three-fifths of an inch ; J over four-fifths. In the form of the thorax it is more like M. hiinaculatus nob., than ma/yinalis, hnt it is greatly superior in magnitude to either, and very distinct as a species. ACANTHOCINUS Meg. A. QUADRIGIBBUS. — Antennae annulate ; thorax four tuber- cled ; elytra with a cinereous spot on each. Inhabits Louisiana. Body dark brownish, when closely examined, varied with fer- ruginous and cinereous, short, prostrate hair : antennae hardly longer than the body, blackish ; the joints, excepting the basal ones, reddish cinereous at their bases ; basal joint clavate : head before remotely punctured ; behind the eyes, small, numerous punctures : labrum dull honey-yellow : thorax with distant punc- tures ; four tubercles nearly in a transverse line, and a longi- tudinal, elevated line: elytra quadrigibbous at base; inner gibbosity extended into a longitudinal elevated line, gradually declining and terminating before the tip ; numerous, distant, pro- found, punctures ; a dilated, undulated, cinereous spot, before the middle ; a sutural series of alternate, quadrate, small brown and cinereous spots, nearly opposite ; tip emarginate : thighs clavate. Length less than three-fifths of an inch. For an opportunity to described this species, I am indebted to Mr. Joseph Barabino, who obtained it near New Orleans. [Belongs to Acanthoderes. — Lec] [196] TETBAOPES Schonh. T. TORNATOR Fabr. — This species is subject to vary. I ob- tained an individual near the Bocky Mountains, so covered with short whitish hair as almost to conceal its color ; it was destitute of the large black spot of the elytra. Two specimens occurred in Mexico, both of which were destitute of the same spot. It is the T. tetroptliaJmiis Forster. 1835.J 666 BOSTON JOURNAL Of tliis genus are two species ; the tornator F., and the can- teriator Drapiez, both of North America. The latter has re- ceived three or four names from as many different authors, but as they are unaccompanied with descriptions, the above will of course, take precedence. HISPA Linn. H. ATRICORNIS. — Above yellowish ; antennae, thoracic line and tip of the elytra, black. Inhabits Mexico. Body above yellowish-fulvous : head impunctured : antennas black : thorax with rather large punctures ; a black dorsal line : scutel black : elytra serrate, with double series of punctures, and interstitial, slender, elevated lines ] tip black-brown, not more than one-fifth of the whole surface of the elytra : pectus and postpectus with a lateral black vitta dilating behind : feet black : thighs fulvous at base : venter black, yellowish each side. Length more than one-fifth of an inch. This cannot be H. qiiadrata Fabr., which has the elytra mar- gined with purple. [i97] CASSIDA Linn. C. UNIPUNCTATA nob. Journ. Acad. Nat. Sc. vol. iii. A variety of this species occurs in Mexico, of a smaller size, with sometimes a black, arcuated, transverse line behind the ab- breviated thoracic line. The inferior surface, in some specimens, is black, the feet vai'ied with whitish, and whitish triangular lateral spots on the incisures of the venter ; in others the inferior surface is pale greenish-yellow, more or less varied with black, the spiracles black. It is an abundant species. CLYTHRA Leach. Fabr. C. MUCIDA. — Black, metallic ; head, thorax, and beneath with white hair. Inhabits Mexico. Body blackish, punctured : head with a coppery tinge, and covered with prostrate white hair : labrum honey-yellow : palpi blackish : antenna piceous : thorax tinged with cupreous, with dense, small punctures, and covered with white prostrate hair : [Vol. I. OF NATURAL HISTORY. 667 scutel with prostrate white hair : elytra naked, with blue and coppery reflections, confluently punctured, lateral edge deeply arcuated: beneath covered with white prostrate hair: feet piceous. Length over one-fourtli of an inch. Much larger than C. dominicana Fabr., much more luiiry above, and the lateral edge of the elytra more profoundly ex- •avated. CHRYSOMELA Linn. 3. C. BARDA. — Green ; elytra with rounded whitish spots. Inhabits Mexico. [198] Body dark green, somewhat metallic, punctured : head with an impressed angular line between the antennas : antennae honey- yellow, at tip fuscous : labrum and palpi honey-yellow : thorax irregularly, and in parts confluently punctured, particularly on the sides ; on the disk the punctures are sparse : elytra with a cupreous tinge, and more or less arcuated and abbreviated series of punctures, including the whitish spots ; spots unequal, more or less rounded, between twenty and thirty in number, yellowish- white, the largest one on the humeral margin and bilobate, two geminate ones at base, none on the sutural margin : wings carne- ous : beneath tinged with cupreous, on the venter : feet honey- yellow. Length three-tenths of an inch. A common species, easily distinguishable from others. GALLERUCA Fabr. 1. G. LEPIDA. — Sanguineous ; elytra blackish, bifasciate with white. Inhabits Mexico. Head sanguineous : antennae white : thorax narrow, sanguine- ous, with a transverse, slightly indented line, impunetured : ely- tra blue-black, obsoletely and irregularly punctured ; a transverse, bilobate, abbreviated band before the middle, and a transverse, oval spot near the tip, yellowish-white : feet yellowish-white. Length less than one-fourth of an inch. Habit of G. ■^-matuktta Fabr., but not so much elongated. 1835.] 668 BOSTON JOURNAL At first sight, without inspection of its generic characters, it might be mistaken for a Lema. 2. Gr. CAVA. — Head with one, thorax with two impressed dots. [199] Inhabits Mexico. Head punctured, sanguineous, beneath the antenna3 whitish ; vertex with an impressed dot : antennas fuscous, or blackish, basal joints whitish beneath : thorax sanguineous, punctured, with two indented dots: elytra densely punctured, with a common suture and vitta blue, the latter originating on the humeral tu- bercle and abbreviated before the tip : pectus ferruginous : post- pectus and venter black ; feet white. Length one-fifth of an inch. Distinguishable from other species by the indentations of the head and thorax, combined with the elytral vittse and irregular puncturing. The G. vittata Fabr. is common in Mexico. AI^TICA Geofi-. 1. A. MELLicoLLis. — Head black ; thorax yellowish; elytra blue. Inhabits Louisiana. Head blue-black, with rather large punctures each side, be- tween the antennae convex, dark piceous : antennce black brown, three basal joints honey -yellow beneath : palpi black : thorax pale honey-yellow, punctures not obvious : scutel impunctured : elytra dark violaceous-blue, with numerous, small, distant, not profound punctures : pectus yellowish : postpectus blackish : venter black- ish, last segment dull yellow : thighs honey-yellow : tibia3 black, yellowish at base : tarsi black. Length nearly one-fifth of an inch. Related to collaris Hlig., and collata Fabr., and particularly the latter, from which it may be distinguished by its blue elytra and immaculate face. A specimen was sent to me by Mr. Barabino, from New Orleans. [200] 2. A. CRENicoLLis. — Yellowish ; thorax five-spotted ; elytra with black vittse. Inhabits Mexico. [Vol. I. OF NATURAL HISTORY. 6G9 Body pale yellowish : antennae blackish; three basal joints honey-yellow, with a black line above : vertex with a black spot thorax with two small dots, and an abbreviated line arranged tri- angularly, black, and a lateral, somewhat largei", oblique, oval, indented black dot : scutel black : elytra impunctured, destitute of striae; a common sutural black vitta, another in the middle, eomewhat narrower than the intervening portion, and a submar- ginal one : pectus yellowish : postpectus and venter black, the latter with yellowish margins to the segments : feet honey-yellow : tibiae and anterior and intermediate thighs with a black line. Length one-fifth of an inch. Very closely allied to A. alternata Illig-, the form and propor- portion of the elytral vitta being the same, but that species is somewhat larger, and is altogether destitute of the lateral thora- cic impressed dots. 3. A. CERACOLLis. — White ; head black, elytra violaceous. Inhabits Mexico. Body white, impunctured; head black, with an elevated line below the antennae : antennae black, second and third joints white, with a black line above : thorax immaculate : elytra violaceous, burnished ; tarsi and tips of the tibiae black. Length less than one-fifth of an inch. Resembles the A. collaris Illig-, {xantliomelas Dalman,) but is much more closely allied to A. collata Fabr. It is somewhat doubtful if it be a distinct species ; but as I possess specimens of the latter from Pennsylvania, Missouri [201] and Florida, all correspond in having green elytra, white front, and other dis- tinguishing traits, I have ventured to assign it a distinct name. EROTYLUS Fab. E. 4-PUNCTATUs. — Testaceous, beneath black : thorax with four black dots: elytra trifiisciate with black. Inhabits Missouri. Erofyhis ^-punctahis? Oliv. Enc. Meth. Head black : thorax testaceous, with an arcuated series of four subequal black dots : scutel black : elytra testaceous, with regu- lar series of impressed punctures, an interrupted band at base composed of a large common spot, and a smaller longitudinally ob- 1835.] 670 BOSTON JOURNAL long one originating on the humerus, an irregular hand on the middle, dilated on the suture, and a terminal, longitudinally ob- long spot, black ; edge black : beneath black : pectus each side, and a series of five spots on each side of the venter, testaceous. Length three-tenths of an inch. This insect I believe to be the E. 4c-punctata Oliv. and as it is but little known, I describe it more particularly to fix the spe- cies. [Belongs to Ischi/rus. — Leg.] LANGURIA. L. SIMPLICICOLLIS. — Black; head and thorax sanguineous im- maculate. Inhabits Mexico. Body blue-black : head sanguineous : antennae blackish-fuscous: thorax sanguineous, immaculate : elytra with [ 202 ] very dis- tinct series of well impressed punctures : pectus and head beneath sanguineous. Length nearly two-fifths of an inch. Much larger than L. Mozardi Latr., and with a proportionally shorter thorax, in these respects corresponding with L. puncti- collis nob., which it equals in magnitude, but has an immaculate thorax, more profoundly punctured elytral striae, and black post pectus and venter. COCCINELLA Linn. 1. C. MUNDA. — Elytra immaculate; thorax black, with a white margin and spots. Inhabits North America. Body black : head with dilated, white, inner orbits : labrum honey-yellow : thorax with a white anterior and lateral margin, and a white abbreviated line proceeding from the middle of the anterior margin : a lateral white dot sometimes confluent with the anterior margin : elytra immaculate, yellowish : tibiae and tarsi piceous. Var. The basal series of transverse nervures is very slightly dis- located. 3. P. BiGUTTATUS Fabr. — The individual described by Fabri- cius appears to be a female. Coquebert gives its length at nine- twentieths of an inch, but it sometimes exceeds half an inch in length. The male is over three-tenths of an inch in length ; it is destitute of the anterior white striga of the thorax, and the tip of the tergum has a white reflection ; the posterior half of the metathorax also has a white reflection. The basal series of trans- verse nervures is not dislocated, in this species. 4. P. LEPiDUS. — Black; abdomen and wings purplish. [304] Inhabits Mexico. ^ Body black, slightly sericeous : wings dark purplish ; sec- ond and third cubital cellules a little narrowed at the radial cel- lule, particularly the latter, which is less than two-thirds the length of the second cellule, in that part ; basal series of trans- verse nervures not dislocated ; metathorax with a very slight re- flection of purplish, and without any impi-essed line ; the poste- rior edge obviously reflected ; tergum with a distinct purplish re- flection ; beneath black ; in a favorable light a very slight pur- plish reflection may be perceived on the thighs. Length two-fifths of an inch. 5. P. 5-NOTATUS. — Tergum on the second segment with two white spots ; third segment with a white interrupted band. Inhabits Indiana. 9 Body black ; head with a slight white reflection before ; and a very slender white line on the posterior orbit : wings on the apical margin black ; basal series of transverse nervures not dis- located ; tergum with a white dot each side before the middle, on the second segment : third segment with a white, interrupted band at base, on the fourth segment at base is an obsolete, whit- ish spot each side, sometimes wanting ; anal segment with a white spot at base. Length two-fifths of an inch. Eesembles higuttatus Fabr., but is distinguished by the two or four more white spots on the tergum, as well as by the white spot on the anal segment. 1835.] * 746 BOSTON JOURNAL 7. P. MELLIPES. — Black ; feet yellowish rufous. Inhabits Indiana. S> Body black, somewhat sericeous with silvery hairs ; anten- nae, joints long, distinct ; mandibles piceous at tip : [305] palpi whitish : wings hyaline ; third cubital cellule very little con- tracted before, larger than the second ; first recurrent nervure entering the second cellule at the middle ; basal series of trans- verse nervures dislocated ; feet bright honey-yellow, the coxae only black. Length over two-fifths of an inch, 8. P. (Miscus) coRNicus [coNicus]. — Black ; wings a little dusky ; basal line of transverse nervures widely dislocated by the externo-medial nervure. Inhabits Indiana. 9 Body black, immaculate; wings dusky; nervures blackish; second cubital cellule somewhat conic, the anterior basal nervure entering the radial cellule in a much arcuated direction, so as not to form an angle with it ; third cubital cellule not much con- tracted anteriorly ; basal series of transverse nervures widely dis- located, that portion which is between the externo-medial and anal nervures is equal to the length of the dislocation ; abdomen polished ; mandibles at tip piceous. Length less than one-fifth of an inch. ■jj Wings less obscure ; anterior tibiae and tarsi obsoletely dull yellowish. Length one-fourth of an inch. 9. P. (miscus) petiolatus. — Tergum fulvous near the base; third cubital cellule petiolated. Inhabits Indiana. 9 Body black, a little sericeous : wings blackish ; third cubi- tal cellule decidedly petiolated : tergum with the terminal half of the first segment, and the greater portion of the second seg- ment yellowish-fulvous. Length over two-fifths of an inch. The petiolated character of the third cubital cellule resembles that of P. niger Fabr. The basal series of transverse nervures is distinctly dislocated. [306] [Vol. I. OF NATURAL HISTORY. 747 [Continuation from Boston Journal of Natural History, vol. 1, May, 1837, No. 4, pp. 361—416.] MERIA Jur. M. COSTATA. — 9 Black; tergum with yellow bands and two spots. Inhabits Indiana. Body black : head above the antennae with a transverse line, slightly interrupted in the middle, an orbital line, and short line behind the eyes, yellow : mandibles piceous : thorax with two transverse spots before, a small, triangular one above the wing- scale, a transverse one behind the scutel, and a bilobed one each side behind, yellow ; each side of the middle of the thorax are two abbreviated, somewhat oblique, impressed lines : metathorax with a double yellow longitudinal side and obvious transverse rugae : pleurae with a triangular spot under the superior wings, a small oblique line over the intermediate feet, yellow : wings with a brown costal margin : tergum [362] with a yellow band on the middle or before it, of each segment, excepting the last ; the second band interrupted into two transverse, oval spots : venter with a longitudinal, lateral spot on the second segment and a transverse lateral one on the third, yellow ; tarsi and in- termediate and posterior pairs of tibiae piceous; a yellow spot on the posterior coxae. Length half an inch. Var a. Middle of the thorax with a small double yellow spot. The observations which I had occasion to make relative to the generic affinities of Plesia marginata nob., are exactly applica- ble to this species. It agrees precisely with Jurine's character of Plesia, but differs from Mizine Latr. by having the mandibles entirely destitute of teeth, a character which it has in common with Meria 111., but the form of its wing-scale, will not admit of its being referred to the latter genus ; I have, however, in this instance, been guided by the characters laid down by Latreillc in the R^gne Animale (first Edition). 2. M. MARGINATA. — Flesia marginata nob., Western Quar- terly Reporter. 1837.] 748 BOSTON JOURNAL 3. M. coLLARis. — Collar with an interrupted band and two spots yellow. Inhabits Indiana. Body black : head with two spots above the antennae, frontal orbits, and dilated line behind the eyes, yellow : mandibles dark piceous, black at tip : collar with an interrupted band on the posterior margin and two spots before yellow : thorax with a small yellow spot above the wings : wing-scale dull honey-yellow with a yellow spot : wings yellowish, fuliginous, dusky on the costal margin towards the tip ; behind the scutel is a transverse [363] yellow line : metathorax somewhat sericeous, without any appearance of rugae, and with two yellow longitudinal spots : ter- gum with a somewhat varied reflection ; first and second seg- ments with a lateral yellow spot, (those of the former probably, in some specimens, obsoletely connected) ; third and fourth seg- ments with a lateral basal yellow spot, connected by a slender line ; fifth segment with an obsolete yellow lateral spot : pleura with a yellow spot under the anterior wings : feet, anterior knees and tibial dilated line yellow; intermediate and posterior tibiae and all the tarsi ferruginous : anal segment above minutely line- ated, and at tip, dull ferruginous. Length over three-fifths of an inch. This species is larger than costata nob., which it much resem- bles, but may be distinguished by the sericeous appearance of the metathorax and the absolute destitution of rugae on that part ; in the costata also, the lateral spots of the metathorax are double. SCOLIA Fabr. 1. S. EPHippiUM. — Black ; tergum bifasciate with fulvous. Inhabits Mexico. Body black : wings dark violaceous ; cubital cellules two, the second receiving two recurrent nervures, and with an abbreviated nervure proceeding from its base towards the tip of the wing : tergum violaceous-black ; second and third segments fulvous, with a narrow basal and terminal black margin ; beneath black : venter slightly tinged with violaceous : thighs not remarkably robust. Length % over one inch and one tenth. A large and fine species. [364] [Vol. I. OF NATURAL HISTORY. 749 2. S. DUBIA. — Black • abdomen ferruginous behind with two yellow spots on the third segment. Inhabits United States. Body black : head and thorax immaculate : wings dark violet blue : cubital cellules two, with no appearance of more than one recurrent uervure: abdomen, first and second segments black ; remaining segments ferruginous ; more hairy, somewhat, than the others ; the third segment, however, more or less tinged with blackish and with two transversely oval, a little oblique, bright yellow spots. Length four-fifths of an inch. A very fine, though rather common species, in various parts of the Union. 3. S. CONFLUENTA nob. Western Quarterly Reporter. — I think it highly probable that Drury's fig. 5, pi. 44, vol. i, is intended for this insect. I was deterred from quoting this figure in con- sequence of its yellow head and four-banded tergum ; but the head is truly, on its front and base, covered with yellowish cinereous haii', as well as the anterior part of the collar ; this may agree with Drury's observation that the " head is of a pale yellow, in front " and " the neck is hairy and of a lemon color." The species also probably varies in having four yellow bands. Drury's figure is that of a female, and my specimen agrees with it in having an immaculate thorax and.scutel, as in the /ossulana Fabr., which I believe to be in reality the female of this same species, and of course the same as that of Drury ; whereas he quotes Drury's figure as that of radula F. which appears to be the male, if I may judge by the " thorace maculato " and other corresponding characters. I have no index to the first volume of Drury, but Fabricius quotes the figure as [365] Sphex plumi- pes Drury. If this be correct, Drury has the priority, and the name and synonyms, will stand thus : JScolia plu7nipes Drur}'. " /ossulana Fabr. (female). " radula Fabr. (male). " conjiuenta Say, (female). 1835.] 750 BOSTON JOURNAL CEROPALES Lat. 1. C. INTERRUPTA. — Black, spotted and banded with yellow ; wings dusky ; antennae and feet honey -yellow ; tarsi yellow. Inhabits Indiana. Antennae honey-yellow ; first joint, bright-yellow : labrum yel- low, black at base : hypostoma yellow, with a quadrate spot and incisures black: orbits dilated, yellow, interrupted above: tho- rax impunctured ; margin of the anterior segment all around, longitudinal spot each side of the scutel and transverse spot be- hind the scutel, yellow : metathorax at tip bifasciate with yel- low, posterior band clavate each side on the pleura : wings fuli- ginous, particularly on the cubital cellules and tip : abdomen fer- ruginous, varied with obsolete yellow and black bands ; and with two yellowish spots on the first segment : pleura with a spot be- hind the wings and a larger one over the intermediate feet, yel- low : coxae varied with yellow : thighs honey-yellow, black at base : tibi^ honey-yellow, yellow at base : tarsi yellow. Length two-fifths of an inch. Closely allied to fasc lata nob. but the thorax is not distinctly punctured, the wings are dusky, &c. [366] 2. C. APiCALis. — Black ; wings black at tip; abdomen with a rufous band ; tip white. Inhabits Indiana. Body black : hypostoma hoary : collar on the posterior margin white : wings hyaline with a fuliginous tip, in which is an ob- solete hyaline spot or band : metathorax dull silvery ; abdomen rather slender towards the base; second segment, excepting on its posterior margin, fulvous ; anal segment white : posterior tibiae with a white line on the posterior side : intermediate and posterior tarsi with the second, third and fourth joints white, with black tips. Length over two-fifths of an inch. CHLORION Latr. C. CANALICULATUM nob. (Ampulex) Western Quarterly Re- porter, vol. ii. p. 76. The name Chlorion has priority over that of Ampidex given by Jurine. [Vol. I. OF NATURAL HISTORY. 751 BEMBEX Fabr. Latr. 1. B. LONGIROSTRA. — Rostruiii extending beyond the inser- tion of the intermediate feet ; superior wings with the marginal and last submarginal cells divided by a very distinct space. Inhabits Mexico. Body black, with short, dense, white hair: antennae tinged with piceous ; first joint white beneath: anterior orbits dull white : nasus whitish, with two black spots : terguni white, with a bilobate, black spot at base : rostrum honey-yellow; extending nearly to the origin of the posterior feet : collar, anterior and posterior margins white : [367] thorax with a very small ful- vous, abbreviated line each side of the middle, and a small, double, fulvous spot behind the middle : scutel with a white lateral spot : metathorax with a white line at base and an oblique one each side towards the tip : tergum varied with yellow and black or green and black ; the posterior margins of the segments dull rufous J about four distinct black spots : feet honey-yellow : thighs black beneath : tarsi paler : venter honey-yellow, with a black spot before the anterior spine. Length from seven-tenths to four-fifths of an inch. With the short maxillary palpi and the one-toothed mandible of Bembex, this insect has the radial and last cubital cellules as widely separated at their tips as in Monedula. The proboscis is not folded, but extended horizontally beneath the body. These characters may justify the formation of a distinct genus, or at least of a division, under the name of Steniolia. 2. B. FASCIATA Fabr. — A male in my cabinet has six bands upon the tergum and two spots on the ultimate segment : the first band is double the width of that of the female, and is inter- rupted by a very small space only; second band not interrupted, but its two lunules are so continued as to inclose two black spots ; third band with the lunules not or hardly interrupted ; fourth and fifth bands interrupted ; sixth band entire, undulated : spots on the ultimate segment, orbicular ; the female has but five bands. 1837.] 7o2 BOSTON JOURNAL GOKYTES Latr. G. PHALERATDS. — Black, sericeoiis, varied with yellow ; wings tlusky. Inhabits Indiana. [368] Body blackish, impunctured : head golden sericeous : antennae, basal joint yellowish : nasus and mouth, excepting the tip of the mandibles, pale yellow : thorax, posterior margin of the collar, abbreviated line over the wings, and wing-scale, yellow : scutel yellow : wings dusky, purplish-fuliginous, tinged with yellowish towards the base ; stigma small ; second cubital cellule obviously hexagonal : metathorax with two large, oblong-oval, yellow spots j triangle at base destitute of small lines and with but a single impressed line : tergum, basal segment yellow ; posterior narrow margin, and lobed spot on the disk communicating with the base, black : second segment yellow on the posterior margin, the yel- low rather dull and a little undulated on its inner edge : third and fourth segments with obsolete yellowish posterior margins : pleura somewhat silvery sericeous, with three almost confluent yellow spots in a line with the collar : feet pale, honey-yellow ; thighs and coxae, with more or less of black above. Length about half an inch. This is a large species. The character which Jurine mentions as common to all the species, of having behind the scutel a tri- angular space, in which parallel lines are sculptured, is so modi- fied in this species as to present the triangle with only a simple longitudinal impressed line. NYSSON Latr. N. AURINOTUS. — Black ; metathorax two-spined; tergum with three lateral spots. Inhabits Indiana. Body black, punctured : head before with a slight yellowish sericeous reflection ; mandibles piceous ; collar [369] with an ob- scure golden margin, terminating in a spot : metathorax with a golden spine each side, in a golden spot : wings dusky : tergum on the posterior edges reflecting whitish j at base of the first seg- ment, obscure golden sericeous ; posterior margins of the first, [Vol. L OF NATURAL HISTORY. 753 second and third segments, each with a yellow band widely inter- rupted in the middle, the anterior one largest : feet honey-yel- low : thighs black at base. Length three-tenths of an inch. Keadily distinguishable from i\\ ^-qmiosus nob. Eesembles ^. interrttptus F. but the areolae of the metathoracic spines are not gilded in that species. PSEN Latr. 1. P. MELLIPES. — 9 Black, with a silvery reflection ; antennae at base, tibiae and tarsi piceous. Inhabits Indiana. Body black : head beneath the antennae yellowish-silvery : oc- ciput with a silvery reflection : antennae to the seventh joint honey-yellow : mandible piceous : thorax with longitudinally confluent punctures, a slender transverse line before, four or six obsolete spots near the scutel and two large obvious ones near the insertion of the petiole of the abdomen : wings hyaline ; ner- vures black stigma brown ; second cubital cellule receiving both recurent nervures : abdomen immaculate, with a few hairs to- wards the tip; petiole as long as the posterior tarsi or rather longer, arcuated, piceous : tibiae and tarsi piceous or honey-yel- low ; anterior pair with dense, short, golden hair. Length nearly eleven-twentieths of an inch. Very similar in form and color to P. atratum Fabr., [370] which, however, has the second and third cellules each receiving a recurrent nervure, and the petiole is proportionally rather shorter. 2. P. LEUCOPUS. — Black; hypostoma silvery: tarsi white. Inhabits Indiana. 9 Body black, with a slight silvery reflection : antennae im- maculate : hypostoma entirely silvery : thorax with minute, lon- gitudinal lines on the disk : wings hyaline : nervures blackish ; second cubital cellule receiving the two recurrent nervures: ter- gum impunctured, polished ; petiole slightly arcuated, rather shorter than the posterior tarsus : tarsi white, dusky towards the tip. 1837.] 48 754 BOSTON JOURNAL Length over three-tenths of an inch. -r Lines of the thorax only visible at base and tip. Length over one-fifth of an inch. LYROPS Illig. t Stemmata, one. 1. L. ARGENTATA Beauv. — Black; terguni, segments mar- wined with dark glaucous ; metathorax with a few wrinkles on the posterior lateral margin. Inhabits the United States. $ Body black : collar having a gradually elevated angle on the middle : wings slightly dusky ; a darker band at tip ; by an obliquely transmitted light, opalescent, varying to purplish, and at tip, in the darker portion, tinged with green ; recurrent ner- vures entering the second cubital cellule very near to each other, but little more than their own width apart : metathorax, poste- rior lateral edge wrinkled transversely : tergum, posterior mar- fins of the [371] segments dark glaucous, without any bright sil- very reflection : posterior pair of tibiae at tip behind, with a fer- ruginous spot. % More slender, wrinkles of the metathorax less obvious, and the recurrent nervures at their entrance into the second cubital cellule not quite so close together. Length ? nearly half an inch. The color of the wings, by a particular, obliquely transmitted light, is very beautifully perlaceous and somewhat iridescent. 2. L. PEPTICA. — Black ; tergum fasciate with glaucous, re- flecting silvery. Inhabits Indiana. 9 Body black ; reflecting silvery, particularly on the head and feet : palpi piceous-yellowish : collar silvery on the posterior mar- gin ; thorax and scutel having their sutures reflecting silvery : wings hyaline ; nervures honey-yellow ; recurrent nervures mod- erately near each other at their junction with the second cubital cellule : tergum, segments excepting the ultimate one, on their posterior margins glaucous reflecting silvery : anal segment with a bright golden reflection : feet black, reflecting silvery ; last tarsal joint rufous. Length over half an inch. [Vol. I. OF NATURAL HISTORY. 7^5 ^ Head and base of the mandibles with a golden reflection : anal segment reflecting silvery. Length under half an inch. The black tibiae and tarsi will at once distinguish this species from aiirulenta F., than which it is also smaller. 3. L. AURULENTA F. {Larra) Syst. Piez. p. 220. [372] Lyroda. t t Stemmata, three. 4. L. TRILOBA. — Deep black, immaculate : head anterior to the antennae with a slight silvery reflection : mandibles dull ru- fous towards the base j collar somewhat trilobate, or having above an obvious angle in the middle and a more obtuse one on each side ; thorax having a distinct, impressed, longitudinal line be- fore ; wings purplish fuliginous, almost opake ; recurrent ner- vures rather distant at their junction with the second cubital cel- lule ; tergum in a particular light, more obviously sericeous on the posterior margins of the segments. Length over half an inch. This has very much the appearance of Larra sethiops nob., but is much larger. In that species also the collar is emarginate in the middle, the wings are but very slightly tinted, and the recur . rent nervures approximate at their junction with the second cu- bital cellule ; it has but one ocellus, and the mandibles are not obviously armed with a tooth on the inner edge. 5. L. SUBITA. — Black ; tergum, segments margined with a whitish reflection ; metathorax wrinkled above. Inhabits Indiana. 5 Body black : head before with a somewhat silvery reflec- tion : collar with an abruptly elevated angle in the middle ; wings at tip dusky ; recurrent nervures entering the second cubital cellule, at a distance from each other ; third cubital cellule but little narrowed : metathorax with small, transverse wrinkles on the disk as well as on the sides : tergum, posterior margins of the segment with a silvery reflection. Length [373] Resembles caliptera, but may be distinguished by the greater width of the third cubital cellule ; by the greater distance be^ 1837.] 756 BOSTON JOURNAL tween the recurrent nervures at their entrance into the second cubital, and by the more wrinkled metathorax. TRYPOXYLON F. Latr. 1. T. POLITUS. — Black; very highly polished: without any silvery reflection ; thorax and scutel with a slightly impressed, longitudinal line : wings black-purple, almost opake : abdomen rather less slender at base than that of T. Jigulus F., but the ba- sal joint is rather abruptly slender on its basal half; this segment has an abbreviated, impressed, longitudinal line before its tip j second segment with a similar line before its middle : on the head and stethidium are very numerous, small punctures, but none on the abdomen : posterior tarsi white, first joint at base, and pulvilli blackish. Inhabits Indiana. Length nine-tenths of an inch. Judging by memory, as I have not his work here, this is prob- ably the albitarsa Beauvois, but although it agrees with the short description of Fabricius, yet I greatly doubt if it is the albitarsa of this author, who gives its native country as South America, on the authority of Mr. Smith and of the Museum of Mr. Lund, from whom and from Mr. Sebestedt he obtained an opportunity to describe a great number of Hymenoptera of that portion of our hemisphere; and but two species from North America. For these reasons I have been led to consider the albitarsa F. as South American ; and as Latreille says that every thirty degrees of latitude exhibits a total change [374] in thg insect productions, I give a new name to this species. 2. T. CLAVATUS. — Abdomen at base slender and a little nodu- lous ; wings at tip dusky. Inhabits United States, Body black ; head and stethidium with silvery reflection : wings hyaline, terminal margin dusky : abdomen clavate : the first and second joints petioliform, a little nodulous at their tips : posteri- or tarsi white ; the terminal joint and base of the first joint black ; ^ with a spine on the posterior trochanter. Length about nine-twentieths of an inch. [Vol. I. OF NATURAL HISTORY. 757 Var. o. Terminal joints of the tarsi blackish j a yellow band at base of the second segment of the tergum. Judging from memory, as in the preceding instance, I suppose this to be the /use ipeunis Beauvois, but not that of Fabricius, for the reasons there adduced. I may also state that this species does not correspond with Fabricius' description in having " alas nigrae cyaneo parum nitidoe," neither does it agree with " Pedes nigri tarsis albis " inasmuch as the posterior pair only are par- tially white. 3. T. CARINATUS. — % Black : head and stethidium with sil- very reflection : a prominent, acute carina between the antennae, divaricating above the antennae into two cariuae : antennae emar- ginate beneath towards the middle : wings hyaline : a slight tint of dusky at tip : tergum gradually attenuated to the base ; three first incisures a little contracted ; feet, anterior pair of knees, tibiae and tarsi yellowish ; intermediate knees and tarsi yellowish in the middle above dusky ; posterior tarsi obscurely yellowish towards the tip. Inhabits Indiana. Length three-tenths of an inch. [375] Remarkable by the carina of the head and the emarginate an- tennae. It is much smaller than theJigultisF., and its abdomen is formed as in that species. OXYBELUS Latr. 1. 0. EMARGINATUS. — % Black J scutellar spine emarginate; tergum 4-spotted. Inhabits Indiana. Body black, with a slight silvery reflection, particularly on the anterior part of the head : antennse dull yellowish at tip : wing- scale honey-yellow : wings hyaline : scutel with a dilated process widely emarginate at tip, and a lateral eublanceolate, decurved, acute, white one ; tergum, first segment with a longitudinal, in- dented line, and a transverse, abbreviated, white line at tip each side ; second segment also with a similar line : tarsi pale honey- yellow : anterior thighs yellow at tip : tibiae yellow ; posterior pair black, yellow at base. Length three-twentieths of an inch. 1837.1 758 BOSTON JOURNAL 2. 0. 4-NOTATUS nob. Long's Expedition. The male is almost destitute of spots on the second segment of the tergum, and all the tibiae have a white line. This species resembles the 0. trispinosus Fabr., but that insect may be distinguished by the dilated figure of the spot on the basal segment of the tergum and by the tibiae being entirely honey- yellow. 3. 0. L^TUS. — Line on the collar, on the scutel and five lateral spots on the tergum yellow. Inhabits Indiana. % Body black, punctured ; head with a slight silvery reflec- tion : antennas ferruginous : mandibles yellow, piceous [376] at tip : collar with a transverse, somewhat undulated yellow line, interrupted in the middle : scutel with a double, transverse, yel- low spot; metathorax with the middle spine simple; the lateral ones depressed, whitish, margined on the inner side with bright yellow : tergum with five yellow spots on each side : knees, tarsi and tibiae yellow, the latter with a dilated black line on the inner aide. Length nearly one-fifth of an inch. Smaller than mucronatusF., which is destitute of the scutellar line. It may be distinguished from the preceding species, by the yellow color on the collar and scutel. CRABRO Fabr. C. CONFLUENTUS [coNFLUENs]. — Black, with large confluent punctures ; tergum interruptedly fasciate. Inhabits Indiana. 9 Body black, densely and confluently punctured, particularly on the stethidium, where they are sometimes longitudinally con- fluent, so as to exhibit lines between them ; they are largest on the metathorax ; hypostoma and anterior orbits behind the basal joint of the antennae, silvery : antennae, basal joint yellow; sec- ond joint honey -yellow ; collar yellow, slightly interrupted in the middle: scutel with a large, transverse, yellow spot; a yellow transverse line behind it ; wings slightly tinged with dusky : abdomen oval, rather abruptly narrowed at base : tergum with the incisures contracted, the segments being convex; approxi- [Vol. L OF NATURAL HISTORY. 759 mately punctured ; segments on their middles, each with an equal band which is interrupted for only a narrow space at the middle : pleura with a yellow spot at the humerus : knees, tibiae and tarsi yellow : venter immaculate. [377] Length over three-tenths of an inch. % Spot of the scutel interrupted or wanting ; antennae beneath, dull honey -yellow; the two posterior bands of the tergum gene- rally confluent in their middles; abdomen longer and more slen- der than that of the female. Length three-tenths of an inch. The sexes are more readily distinguished by the tip of their abdomen than by .the antennae. I have nine males and three fe- males : two of the latter measure two-fifths of an inch. The punctures of this species are larger and more dense than in our other species. C. ARCUATUS. — Metathorax with numerous parallel lines ; ter- gum with yellow spots and bands. Inhabits Indiana. Body black, with minute, dense punctures : front with a wide glabrous interval between the silvery orbits : antennae, basal joint yellow, with a black line near the inner base ; sixth joint arcua- ted, a little prominent inwardly at tip : hypostoma yellowish-sil- very : thorax with a slightly interrupted line on the collar, of a bright yellow ; a yellow transverse line beneath the scutel : wings a little tinged with dusky : metathorax with numerous, small, parallel lines, arcuated at base, and transversely rectilinear be- hind, extending upon the pleura beneath the wings : pleura with two small yellow spots before : tergum with an oblique some- what arcuated, yellow spot each side of the first segment; an oblique elliptic one on the second segment each side ; a reclivate, transverse, lateral yellow line on the third ; remaining segments each with an entire, slightly undulated, slender greenish-yellow band : anal processes acute, very deeply and regularly ciliated : feet yellow : coxae and trochanters black : thighs at the base black ; the black portion very small on the anterior [378] pair, but on the posterior pair extending on the inferior surface to the tip : venter immaculate. Length two-fifths of an inch. 1837.] 760 BOSTON JOURNAL STIGMUS Jur. Latr. 1. S. PARALLELUS. — This species resembles the fraternus nob. but it may be distinguished by the following comparative char- acters. The posterior thighs and middle of the tibiae are black. The stigma is a little smaller. The dividing nervure of the first and second cubital cellules is parallel to the posterior nervure of the second discoidal cellule; whereas in \h.Q fraternus, the latter is more oblique. The size is much the same. Inhabits Mexico. The Stiymus fraternus, is not uncommon in Ihdiana, and as in the present species, the hypostoma of the male is somewhat sil- very. 2. S. PUSILLUS. — Petiole obsolete : second cubital cellule large. Inhabits Indiana. Body black, polished : head before, and mouth, including the mandibles, whitish : antennae honey-yellow; basal joint before, whitish : wings hyaline ; nervures pale brownish ; stigma fus- cous; second cubital cellule large, somewhat longer than broad : feet honey yellow ; posterior pair blackish ; abdomen with a very short petiole, almost sessile. Length about one-twelfth of an inch. This is much the smallest species I have seen. The dividing nervure of the first and second cubital cellules is exactly opposite to the posterior nervure of the middle discoidal cellule. The hypostoma of the female is black. [379] PEMPHREDON Latr. 1. P. MARGINATUS. — Black; antennae at base, mandibles and feet honey-yellow. Inhabits Pennsylvania. Body polished ; antennae blackish ; first and second joints honey-yellow ; the former as long as the second and third to- gether, which are nearly equal : mandibles honey-yellow, not very obviously denticulated at tip : wings tinted with fuliginous; nervures brown ; stigma fuscous, not much dilated ; nervures of [Vol. L OF NATURAL HISTORY. 761 the second cubital cellule and second recurrent nervure margined with whitish, the latter abbreviated before the anal tip : abdomen subsessile ; with the exception of the first segment, piceous blackish : feet honey-yellow. Length over three-twentieths of an inch. The second cubital cellule is somewhat larger than usual, and the nervures which form it, as well as the second recurrent ner- vure, are less distinct than usual. 2. P. ANNULATUS. — Black ; mandibles white ; feet yellowish. Inhabits Indiana. 5 Body black, polished, minutely punctured : antennae, basal joint white; second joint piceous : nasus prominent in the mid- dle : mandibles and palpi white : wing-scale dull honey-yellow : wings hyaline ; nervures blackish, tinged with yellow at base ; first and second cubital cellules receiving their appropriate re- current nervures : metathorax with larger punctures and lines : abdomen polished, impunctured, subsessile, the petiole being very short : pleura with a small whitish dot under the wing-scale : feet honey-yellow. Length one-fifth of an inch. [380] % Hypostoma silvery : nasus rounded : antennae annulate, one-half of each joint being yellowish. Length over three-twentieths of an inch. ALYSON Jur. 1. A. OPPOSITUS. — Black; feet honey-yellow; tergum with two yellow spots. Inhabits Indiana. 9 Body black : mouth, hypostoma and anterior orbits yellow : antennae at base beneath yellow : thorax with an obsolete yellow spot before the wings each side : wings very slightly tinted with dusky, more particularly in an obsolete band toward the tip : ner- vures fuscous : stigma brown : recurrent nervures entering the petiolated cellule exactly opposite to its bounding nervures: spines very short: feet honey-yellow: tergum polished, first segment honey-yellow; second segment with a large, lobately- rounded, bright yellow spot each side at base; the base is also obsoletely honey-yellow. 1837.] 762 BOSTON JOURNAL % Antennae, terminal joint as long as the first, arcuated : wings not distinctly tinted with dusky except in the radial cellule : ab- domen, with the exception of the two yellow spots, black : tarsi paler than the tibiae and thighs. Var. a. Yellow spots of the tergum obsolete. Length three-tenths of an inch. In form, size and color, very similar to A. spinosus, (Pompilm,) Panzer. But in that species the feet are blackish, &c. 2. A. MELLEUS. — 9 Honey-yellow; head, pectus, and tip of the abdomen black. Inhabits Indiana. Thorax honey-yellow: head black : mouth, anterior [381] orbits and basal joint of the antennae excepting a line on the exterior side, whitish : region of the scutel dusky : wings with a dusky band : metathorax honey-yellow, with the elevated lines rather slender; the lateral lines of the dorsal area arcuated : tergum with the first and second segments honey-yellow, the latter with a lateral whitish spot ; remaining segments blackish ; anal segment ob- scure piceous : pectus black : feet, excepting the base of the posterior coxae, honey-yellow. Length under one-fourth of an inch. The prevailing honey-yellowish color distinguishes this spe- cies ; and the metathoracic lineations are much finer than those of the preceding species. The lateral lines of the dorsal area of the metathorax in the oppositus are nearly rectilinear. CERCERIS Latr. 1. C. FijMiPENNis. — % Black; tergum with a broad band and very narrow ones ; wings blackish. Inhabits Indiana. Body black, densely punctured : head with a golden, suborbi- cular, orbital spot beneath the line of the antennse, and dense golden ciliae each side at the mouth ; antennae entirely black : collar with two yellow spots : behind the scutel a transverse, yellow line : wing-scale with a small yellow spot : wings black- ish ; first recurrent nervure entering opposite to the dividing nervure of the first and second cubital cellules : tergum, incisures wide ; first segment rounded ; second with a broad, equable, ter- [Vol. I OF NATURAL HISTORY. 763 minal band ; remaining segments with each a terminal capillary baud, more or less interrupted in the middle; posterior band wider and somewhat irregular : tibiae yellow pale, [382] on the inner side and tip of the exterior side black : tarsi, anterior pair dull yellowish ; posterior pairs, except at base, blackish : venter immaculate. Length over two-fifths of an inch. Resembles C. dcscrta nob., but aside from other differences it may be distinguished by that species having somewhat clearer wings, and the inosculation of the first recurrent nervure being opposite to the middle of the second, or petiolated cubital cel- lule ; the antennae also in that species are yellowish before, towards the base ; the scutel has two spots in addition to the yellow line behind it, and the bands of the tergum are always broader than in the present species. The fallax nob. difi"ers in having the transverse yellow line on the scutel in a direct line between the origin of the posterior wings ; whereas in the pre- sent species it is behind the scutel. 2. C. SEXTA. — A broad band on each segment of the tergum ; metathorax with a lateral spot. Inhabits Missouri. Body black ; head before, base of the mandibles and basal joint of the antennae beneath, yellow; third joint of the antennae dull honey-yellow : collar with two large yellow spots : wing- scale and transverse line behind the scutel yellow; the triangular impunctured space behind the transverse line very obvious, with oblique lines and a longitudinal one in the middle : wings a little fuliginous particularly on the margin and tip ; nervures brown ; stigma yellow ; recurrent nervure of the second cubital cellule entering at its middle : metathorax with a large, oval, longitudi- nal, yellow, lateral spot : tergum with a broad yellow band on each segment ; that of the first or petiolar segment slightly in- terrupted in the middle ; the two ultimate ones almost ferrugin- ous : feet honey-yellow, [383] more or less varied with bright yellow : venter with interrupted bands. Length over half an inch. This was given to me by Nuttall. "With the exception of frontata and hidentata nob. this is the largest North American 1837.] 764 BOSTON JOURNAL species I have seen, and the much more dilated bands of the ter- gum are distinctive. PHILANTHUS Fabr. Latr. P. SOLIVAGUS. — Black, with small punctures ; tergum fasciate on each segment. Inhabits Indiana. % Body black ; punctures numerous, small : hypostoma, an- terior orbits, to the emargination, and large spot above the inser- tion of the antennae yellow : collar, margin yellow, slightly in- terrupted in the middle : stethidium immaculate : wing-scale yellow : wings very slightly tinged with dusky ; nervures fus- cous, towards the base and stigma honey-yellow : tergum, seg- ments having each a greenish yellow band on the posterior sub- margin, that of the first segment largest, the others subequal ; sixth segment immaculate: pleura, pectus and venter immacu- late : knees, tibiae and tarsi yellow : posterior pair of tibiae with a spot on the posterior tip and their tarsi above tinged with fer- ruginous. Length two-fifths of an inch. RYGCHIUM Spinola. 1. R. BALTEATUM. — 9 Black, thorax and head varied with ferruginous ; tergum with a yellow band. Inhabits Indiana. [384] Body black, punctured : head ferruginous ; region of the stemmata, black : antennae black, first and second and half of the third joints ferruginous : thorax with a broad ferruginous margin, including the scutel, and with more or less of ferrugin- ous in the middle j anterior margin with a slender yellow line interrupting the ferruginous margin : wings black-violaceous : feet yellowish : thighs dusky at base : tergum, first segment im- punctured, on the posterior margin a yellow band abruptly dilated each side ; second segment slightly punctured at base, posterior indented, with large punctures, and dull ferruginous; remaining segments punctured. Var. a. Behind the scutel a transverse, yellow, abbreviated line. [Vol. I. OF NATURAL HISTORY. 765 Var. 0. Posterior margins of the terminal segments of the tergum obsoletely ferruginous. Var. *. The ferruginous color predominates having but a small portion of black on the thorax ; the tergum is ferruginous with only a line of black on the first segment, and a triangle of black at base of the second segment ; but the yellow band on the first segment is still visible though less obvious. Length over four-fifths of an inch. Not a common insect. 2. R. 5-FASCiATUM nob. [Pterochilus,) Appendix to Long's second Expedition. I am not sure of the generic place of my specimens as they have lost their trophi. [Ante 1, 234.] 3. R. CRYPTICUM nob. {Odynerus,) "Western Quarterly Re- porter. [Ante 1, 168.] 4. R. ANNULATUM nob. [Odynerus,) Appendix to Long's second Expedition. [Ante 1, 235.] [385] ODYNERUS Latr. 1. 0. QUADRISECTUS. — Black; trunk before and behind, tergum before and a band, white. Inhabits United States. Body black, punctured : head with a small spot above the in- terval of the antennae, line on the basal joint of the antennje, superior lateral margin of the clypeus and slight spot on base of the mandibles obscure white : thorax, a bi-lobed band on the an- terior margin, spot beneath the wing, triangular spot each side on the scutel, transverse line behind the scutel, behind that again on each side is a very large triangular spot extending down al- most to the origin of the abdomen, white ; edge of the posterior declivity of the metathorax with a slight bifid, transverse, denti- culated crest : wings dark violaceous : tergum, first segment white, with a dorsal, triangular, lobated black spot communi- cating with the black anterior declivity ; second segment with an undulated, dull white band behind, and an obsolete, very small spot of the same color each side before the middle : feet with short, whitish sericeous hair. Length over seven-tenths of an inch. 1837.] 766 BOSTON JOURNAL This is much like the quadridens Linn., which is a true Odi/- nerus, but it is destitute of the metathoracic spines of that spe- cies, and besides other differences it has a band on the second abdominal segment. This latter character not being very obvi- ous may readily have been overlooked by Fabricius. The male differs but little from the female ; my specimens have two additional white spots on the anterior portion of the nasus. 2. 0. OCULATUS — % Black, tips of the abdominal segments and two points on the second segment, yellow. [386] Inhabits Ohio and Missouri. Body black, with dense, rather large punctures : clypeus yel- low, emarginate at tip : mandibles yellow, honey-yellow at tip : antennae, basal joint yellow, with a black line above : front with a yellow line from the base of the antennae, into the emargina- tion of the eye, and a small spot above the interval of the an- tennas, yellow ; thorax, a bilobed spot on the anterior margin, wing-scale and small spot beneath it, and transverse spot behind the scutel, yellow : wings dusky : tergum not so grossly punc- tured as the thorax ; first segment with a yellow posterior mar- gin ; second with a yellow small dot each side, and yellow poste- rior margin extending around the venter ; remaining segments obsoletely margined at tip with yellowish : feet yellow ; thighs black at base. Length over three-tenths of an inch. Like the acufus Latr., but may be distinguished by its more gross puncturing, as well as by the yellow dots on the tergum. A variety from Missouri, has the feet all yellow, 3. 0. QUADRIDENS Linn. ( Vespa,) Syst. Nat. ; Amoen. Acad. cinerascens Fabr. The remark " size of parietina " may refer to the male. 4. 0. UNCINATA Fabr. ( Veapa,) Syst. Piez. p. 25. — Fabri- cius mistook this species for the quadridens L., which is our largest and most common species, and sufficiently distinguished from the present, besides the denticulated metathorax, by many characters ; and the following is a detailed description of it. 2 Black ; tergum with a yellow band. Inhabits Indiana. [Vol. I. OP NATURAL HISTORY. 767 Body black, punctured : head, short line behind the eye, dot above the interval of the antennae, one exterior [387] to the an- tennas, one each side on the clypeus, and antennae beneath, brighter towards the base, dull fulvous : mandibles on the exte- rior margin, honey-yellow; thorax, bilobed spot on the anterior margin and transverse line behind the scutel, yellow : wing-scale piceous, black on the inner margin : wings blackish-violaceous : tergum, first segment on the posterior margin with a yellow band abruptly dilated each side ; second segment at tip with much larger and confluent punctures : feet orange :^ thighs, except at the knee, black. Length three-fifths of an inch. Diflfers from any of the varieties of our parktimis Linn., I have seen, though it is nearly allied to that species. 5. 0. ANORMis S. (Eumenes) Long's second Expedition, pro- bably belongs to this genus, but as the head of my specimen is destroyed, I cannot be certain whether it may not be a Pterochei- lus Klug. It is like the oculatus S. LETHUS F. Latr. L. SPINIPES. — Black ; clypeus broader than long ; fir.st abdo- minal segment somewhat white at tip. Inhabits Indiana. Body black, punctured : clypeus much wider than long : wings dark violaceous: tergum slightly punctured; peduncle rather slender, somewhat gibbous, with an indented spot above, near the tip, terminal margin with a piceous, dentate band ; second gegment with a distinct neck at base ; posterior margin abruptly and smoothly impressed ; and with the remaining segments im- maculate : tibiae, posterior pairs spinous behind. [388] Length seven-tenths of an inch. Difiiers from L. cyanlpennis F., which it seems to resemble most, in being smaller, more polished, having no testaceous at base of the petiole or on the sides of the metathorax ; the wings also are less opake. 1837,] 768 BOSTON JOURNAL POLISTES Latr. 1. P. METRICA. — Ferruginous ; abdomen black ; wings dark violaceous. Inhabits United States. Body ferruginous: antennae, fuscous ; first and second joints ferruginous beneath; five or six last joints fulvous beneath : hy- postoma with a few distant yellow, short hairs, not sericeous ; at the middle of the tip, a little prominent : thorax, with a black dorsal line abbreviated behind, each side of which is an obsolete line confluent behind, exterior to which at base is a black line attenuated before and abbreviated : wings dark violaceous : feet black ; tibiae within, excepting the posterior pair ; knees and tarsi yellowish : abdomen black ; first segment obsoletely piceous each side and on the posterior edge : second segment also with obscure ferru- ginous on each side, sometimes obsolete. Length over four-fifths of an inch. Resembles the annularis Fabr., but the ferruginous color is more prevalent ; the hypostoma is not sericeous, a little more prominent in the middle ; the basal abdominal segment is some- what larger and destitute of the annulation. I have obtained it abundantly in Indiana and Mr. Barabino sent it to me from New Orleans. 2. P. AREATA. — Thorax black bilineate and margined with yellow. [389] Inhabits Mexico. Head yellow : nasus with black sutures and line before from the middle, bifarious near the antennse : mandibles piceous at tip : antennae reddish-brown, darker above, and on the first joint yel- low beneath : vertex black, of which two broad lines descend to the antennae and one descends each side, for a short distance, posterior to the eyes ; a yellow oblique line from the summit to the tip of the eyes ; thorax black, with two yellow vittae : collar, with an abbreviated line before the wings, and a transverse ante- rior one, black ; wings slightly ferruginous on the costal margin : scutel and segment beneath it yellow, the former black in the middle : metathorax yellow, a black vitta, and lateral basal spot : abdomen, first segment petioliform, as long as the second : tergum [Vol. I. OF NATURAL HISTORY. 769 black, segments on their lateral and terminal margins yellow, the latter undulated before ; second segment yellow also at base ; be- neath yellow, with black incisures : feet yellowish ; posterior pair darker behind : venter yellow, with two or three slender obsolete dusky bands. Length less than half an inch. 3. P. VALIDA. — Yellow; middle of the thorax and base of the segments of the tergum ferruginous. Inhabits Mexico. 9 Body dull yellow, with ferruginous sutures : head above, and antennae at base, ferruginous : thorax on the disk ferrugi- nous : wings yellowish ferruginous : tergum with the segments ferruginous at base : venter greenish-yellow, at base ferruginous : feet ferruginous ; coxae and part of the thigh yellow. Length over one inch. A large and rather robust species. The male is more exclu- sively ferruginous with the posterior pairs of tarsi whitish ; the head in my specimen is destroyed. [890] 4. P. MELLIFICA. — Wings yellowish ; abdomen fasciate. Inhabits Mexico. Body blackish, sericeous, with a slight golden reflection : cly- peus not acute, but almost rounded at tip : mandibles at tip pi- ceous ; thorax with a distinct, longitudinal, impressed line be- fore, extending to the middle : wings yellowish ; dusky at tip : scutel truncate at tip, or rather very obtusely emarginate : meta- thorax almost vertical, with a distinct, prominent, robust angle each side ; abdomen, first segment, small and short ; second great- ly the largest ; all margined behind with orange yellow : venter with all the margins yellow excepting the basal one. % Basal joint of the antennae beneath yellow : nasus very se- riceous, having a whitish reflection : coxae and trochanters yel- lowish-white. Length over three-tenths of an inch. Not being able to find my notes relative to this species, I can only state, that near Jalapa, my attention was attracted by a group of Indians, who were eating honey from a paper nest, which was then so far dissected in their repast, that I could not 1837.] 49 770 BOSTON JOURNAL ascertain its proper form. The honey had a pleasant taste, and as far as I could gather from their gestures, the nest was obtained from a tree. Some of the specimens above described I found c rawling feebly away, and others I extracted frem the cells in a perfect state. The trophi agree with those of the P. nigripennis Oliv., except- ing that the obliquely truncated portion of the mandibles is a lit- tle longer, and the terminal joint of the labial palpi is equal to the preceding joint. I had made the above description and remarks before an op- portunity offered to compare the individuals with Latreille's de- scription of his P. lechegiLana (Ann. des [391] Sc. Nat. tom. 4, p. 335,) which I find it closely resembles, and to which I should refer it, but for the character attributed to that insect of having only the '' bord posterieur des cinq premiers anneaux de Fabdo- men jaune," whilst all the segments of the tergum of our species are margined with yellow, and the anal segment is also of that color, in all the specimens which I have seen ; all the segments of the venter, moreover, are margined with the same color ex- cepting the basal one. These differences induce me not to with- hold this description, as we may reasonably infer that others exist, which can be detected only by comparison. Whether this species is the artificer of either of the nests figured by Hernan- dez and copied by Latreille in Humboldt's Zoology, I cannot determine, but it seems highly probable. The observation of La- treille relative to the insects that construct those nests, (or at least one of them, for they are very unlike each other) seems ju- dicious, that " j'ai lieu de soupgonner que ces insectes sont iden- tique ou peu differens," from his P. lecheguana. COLLETES Latr. Klug. C. IN.^QUALIS. — Labrum with four indentations near the base. Inhabits Indiana. 9 Body black with pale cinereous hair : labrum on the basal half, with four obvious indentations ; thorax with the hair dusky on the disk ; wings hyaline ; nervures fuscous : tergum with very short dusky hair ; that of the anterior portion of the basal segment, and on each side of that segment, longer and whitish or [Vol. I. OF NATURAL HISTORY. 771 pale cinereous ; posterior margins of the segments with white hair, beneath [392] which the surface is dull piceous at tip ; basal segment with a longitudinal impressed line at base : venter. s:egments on the posterior margin with dull whitish hair. Length about half an inch. % With more dense and obvious hair on the front. Length less than half an inch. In warm days of March and April, this species may be ob- served flying about near the surface of the earth. SPHECODES Latr. S. CONFERTUS. — Bkck, abdomen rufous, black at tip ; punc- tures dense. Inhabits Indiana. Body black, with close-set punctures : head rather small with whitish hairs ; mandibles piceous black : thorax, middle thoracic longitudinal line very distinct, punctures equally close-set : scu- tel with the impressed line, continued from the thorax : wings hyaline : abdomen polished : three basal joints rufous; remain- der blacTc. Length three-tenths of an inch. Resembles the gibhus ¥., but is smaller; with a proportionally smaller head and much more dense puncturing on the thorax and scutel. HYL.^US Latr. H. MODESTUS. — 9 Black, opake : abdomen polished: hypos- toma on each side with a triangular whitish spot : collar with an abbreviated, transverse, yellowish line each side : pleura with a yellowish spot under the humerus : wings hyaline, with blackish nervures : feet with whitish knees. [393] Length over one-fifth of an inch. % Head beneath the insertion of the antennae, pale yellow : antenna beneath dull ochreous : basal joint beneath, pale yel- low : collar immaculate : tibias and tarsi pale yellowish, the former with a black spot near its tip. Length about one-fifth of an inch. The spots on the head of the female, arc like those of //. va/-i- egatus F., but it is a very different species- 1837.] 772 BOSTON JOURNAL ANDRENA Fabr. Klug. A. VALIDA. — 9 Entirely black, immaculate ; hair very sbort, dense, giving to the thorax and head a velvet-like appearance : head with the hair of the cheeks, tip of the nasus and outer in- ferior edge of the mandibles longer : mandibles with a rather strong tooth before the tip : wing-scale glabrous : wings purplish- fuliginous, the darkest portion at tip ; stigma honey-yellow : me- tathorax, surface not concealed by hairs, with separate punctures and except at base, canaliculate in the middle ; at base is a trans- verse space of much larger, confluent punctures, behind which space is a narrow glabrous space at the origin of the groove ; lateral margin hairy : tergum with very short hairs not conceal- ing the surface ; first segment concave and deeply canaliculate on the anterior face ; segments with a transverse, impressed, sub- marginal, posterior line ; on the first and second are two : venter, segments with long, rather dense hairs. Length seven-tenths of an inch. A large and fine species. [394] HALICTUS Latr. 1. H. NiGRiCORNis Fabr. (Centris.) This appears to be the male of H. viridula Fabr. (^Megilla), and the same as H. nigri- cornis Coqueb. (^Andrend) and H. sericea Forster. 2. H. RADIATUS. — 9 Green ; metathorax behind with a radi- ated disc. Inhabits Indiana. Body green, polished ; hairs numerous, short, cinereous, not obscuring the general color : antennae black, more or less tinged with piceous, particularly beneath : nasus before black, ciliate ; labrum piceous : mandibles yellow towards the base, piceous at tip : wings tinged with fuliginous ; nervures brownish, supple- mentary nervure at tip of the radial cellule very distinct : meta- thorax at base having numerous, elevated longitudinal or oblique lines ; on the posterior declivity is a somewhat orbicular disk, distinguished from the general surface by an elevated line equally distinct all around ; it is radiated with elevated lines : tergum sometimes tinged with blue or purplish ; each segment with a [Vol. I. OF NATURAL HISTORY. 773 slight inequality or impressed transverse line, near the middle : feet dark piceous ; tarsi and knees somewhat paler. Length over two-fifths of an inch. 3. H. LABROSUS. — 9 Greenish; tergum purplish, segments margined with blackish. Inhabits Mexico. Body green, with a purple reflection : antennae black : nasus at tip blackish : labrum black, much elevated at the middle of the tip ; the elevation grooved before ; mandibles black, tinged with piceous at tip : wings hyaline, slightly tinged with fuligin- ous ; nervures fuscous : metathorax [395] with the including line of the posterior disk, prominent only towards the petiole : tergum darker purplish than the thorax ; the broad posterior margins of the segments, blackish : feet, purplish and blue : tarsi blackish-piceous. Length about two-fifths of an inch. About the size of the preceding, from which it difiers mate- rially in color, and in the sculpture of the metathorax. 4. H.- PURUS. — Green ; first recurrent nervure confluent with the dividing nervure of the second and third cubital cellules. Inhabits United States. 9 Body green, polished, tinged with brassy or cupreous : an- tennae black : labrum and mandibles piceous, the latter sometimes almost honey-yellow : metathorax at base lineated ; no distinct posterior disk, but the groove is well impressed, and there are often near the petiole, a few, obsolete, raised, converging lines : wings hyaline, very slightly dusky at tip ; nervures brown ; radial nervure fuscous ; stigma pale yellowish ; second recurrent ner- vure exactly uniting with the tip of the dividing nervure of the second and third cellules : tergum obviously varied with brassy ; posterior slender margins of the segments dark purplish cr black- ish, sometimes not obvious : feet dull piceous : venter dull pi- ceous. Length less than three-tenths of an inch. % Head, thorax and metathorax, greenish-blue : mandibles and labrum, dull honey-yellow : thighs obviously tinged with bluish-green: venter on the middle segments green. 1837.] 774 BOSTON JOURNAL Length less than one-fourth of an inch. A very common species. I have found their nests in [396] the soft, decomposing sap-wood of the Oak and Hickory, between the bark and the solid wood. Their cells are oval, horizontal, not symmetrically disposed, though many are parallel. These cells are composed of particles of the decayed wood, agglutinated together. Each cell contains an individual, subsisting on a yel- low pollen, enclosed with it by the parent. In the same assem- blage are the young of all ages to the perfect insect. The male varies in having the tibiae and tarsi yellowish-white, with more or less of green on the middle of the posterior tibiae. The preceding species, distinguished by their polished green color, are also remarkable by the very obtuse emargination of their eyes, or, in other words, the curvature of the inner side of the eye : they might very properly constitute a division of the genus. 5. H. LiGATUs.-^Black ; tergum banded with whitish. Inhabits United States. 9 Body black, with whitish cinereous hairs on the head and stethidium : wing-scale honey-yellow : wings hyaline, tinged with yellowish towards the base ; postcostal nervure black ; first re- current nervure entering the second cubital cellule near, but not at the dividing nervure : metathorax at base having the depressed surface granulated or very minutely lineated ; posterior face sub- orbicular, slightly concave : tergum having the posterior margins of the segments white with prostrate hair, beneath which the surface is piceous : venter a little hairy ; posterior margins of the segments obscurely piceous : feet tinged with piceous, paler towards their tips ; the posterior with pale ferruginous hair. Length about three-tenths of an inch. -^ Antennae beneath, ochreous, excepting the first and [397] iiecond joints : nasus, labrum and middle of the mandibles, yel- low : wings with the nervures darker : tergum not so very obvi- ously banded : feet black J tibiae and tarsi, yellow; the former having a black spot on the anterior middle of the posterior pairs. Length three-tenths of an inch. A very abundant species. The male is a little longer than the female. [Vol. I. OF NATURAL HISTORY. 775 The seutelliform base of the metathorax is more or less sculp- tured with slightly elevated, longitudinal lines. 5. H. PARALLELUS. — Black ; terguni banded : wings and feet ferruginous. Inhabits Indiana. 9 Body black, somewhat hairy ; hairs yellow-cinereous : nasus ciliate with ferruginous hairs which extend over the labrum : antennae with the third joint but little longer than the fourth : wings pale ferruginous, dusky at tip ; second cubital cell quad- rate, the basal and terminal nervures being quite parallel : ter- gum, each segment with a very obvious posterior margin of whitish-yellow hairs : feet ferruginous, the base of the thighs and coxae more or less blackish. Length less than half an inch. CERATINA Latr. C DUPLA. — Blue ; much punctured. Inhabits Indiana. 5 Body deep blue, densely punctured, a little polished : an- tennae black : nasus with a white spot, sometimes obsolete : tho- rax with an impressed line ; disk with few punctures and more polished : wings but slightly dusky ; nervures blackish : wing- scale dark piceous, impunctured : [398] tergum more densely punctured towards the tip ; basal segment on the anterior face impunctured, polished ; remaining segments with a distinct line on their anterior submargins, curving backward on each side ; between this line and the basal edge, particularly on the third and fourth segments, the surface is but little punctured and is polished, resembling a small segment : feet blackish, with pice- ous tarsi and whitish hair : pleura with a small yellow point under the wing-scale. Length a little over three-tenths of an inch. S Nasus and quadrate spot on the labrum, white ; anterior tibiae whitish on their exterior edge. Length one-fourth of an inch. The spots on the nasus, labrum and pleura, as well as the line on the tibiae in the male corresponds with those of the male of C albilahris F.,but the general color is altogether different. A 1837.] 776 BOSTON JOURNAL variety? is destitute of the spot on the labrum and has but a very small spot on the nasus. The maxillary palpi sometimes appear to have six joints. I am not sure that the male above described, is that of the present species. STELIS Panz. S. OBESA.— Black, varied with yellow ; wings fuliginous. Inhabits Indiana. Body robust, convex, punctured, black : nasus, mandibles at base, orbits anteriorly and abbreviated line behind, yellow : tho- rax with a yellow, arcuated line each side extending on the ante- rior margin : scutel somewhat indented [399] towards the tip, margined behind with yellow, which is slightly interrupted in the middle: wings fuliginous; nervures fuscous: tergum, six yellow bands, the anterior one widely interrupted, the others gradually less so to the penultimate one which is confluent; the ultimate one broadest, entire : venter yellowish at base : feet yel- lowish ; thighs and posterior face of the tibiae partly black. Length over one-fourth of an inch. In the abdominal markings it resembles some species of Anthi- dimn, but the maxillary palpi have two joints. OSMIA Panz. Latr. 1. 0. LIGNARIA. — Dark bluish; thorax and base of the ter- gum, with cinereous hair. Inhabits United States. ? Body very dark bluish : head with cinereous hair : nasus very profoundly emarginated : antennae black : thorax with cine- reous hair ; wing-scale black-piceous : wings with a slight fuli- ginous tinge, particularly on the costal half of the radial cellule ; nervures blackish : tergum, basal segment with cinereous hair ; remaining segments with short blackish hair; anal segment blackish : beneath a little darker than above : feet and ventral hair blackish. Length about nine-twentieths of an inch. % Hair of the head before dense, rather longer, and whitish; pectus, pleura and feet with cinereous hair; venter blackish; uasus very slightly and obtusely emarginate. [Vol. I. OP NATURAL HISTORY. 777 Length about seven-twentieths of an inch. A common species, nidificates in old wood. Forms a [400] dilated oval cocoon of a ferruginous color. It seems to approach Megilla metaUica Fabr., which however is said to be large, black- bronze, with white wings. 2. 0. BUCCONis. — Black; tergum with slender white bands. Inhabits Indiana. 9 Body black, with rather short gray hairs, and obvious dense punctures : head rather large, long between the eyes and thorax : nasus entire : mandibles with a patch of dense prostrate hairs near the tip : wings hyaline : nervures fuscous : wing-scale piceous : tergum with short, blackish hairs ; segments rather convex, narrow, white bands of prostrate short hairs, wider each side ; towards the posterior extremity with numerous white, short hairs, obvious in profile ; posterior tarsi with longer hairs, tinted with ferruginous : venter with fulvous hairs. Length over three-tenths of an inch. % Resembles the female, but is smaller, and the tail has four distant denticulations. Length one-fourth of an inch. CCELIOXYS Latr. 1. C. 8-DENTATA nob. Appendix to Long's Expedition, p. 353. [Ante 1, 239.] 9 Body rather more slender than that of the male ; the abdo- men conic and polished ; head before a little pruinose, with short hairs ; thoracic lines white and less obvious than in the male ; feet black ; tibise and tarsi more or less piceous ; tergum, with the bands white and all of them single, those of the male are tinged with yellow. The Antliophora iiVZew^a^a F., which is said to be [401] a Coelioxys, is described as having the abdomen brown and with only two spines. The antennae of the tail of the S-dentata, resembles that of C conica L., but the middle spines are much more robust and obtuse; the bands are more distinct and the abdomen opake in the male. 1837.] 778 BOSTON JOURNAL 2. C. ALTERNATA. — Bands of the tergum alternately inter- rupted ; % tail 10-spined. Inhabits Indiana. % Body black, punctured ; the punctures not much crowded : head with short, white hair, almost naked on the vertex : front with long, white, dense hair : antennae, tip of the basal joint ob- scurely piceous : thorax an interrupted, arcuated, white line be- fore, curving over the wings ; a line before the scutel, and an- other at its tip, white : wing-scale dull honey-yellow : wings yellow fuliginous, more dusky at tip : tergum polished, punctures more sparse than on the thorax; segments, particularly the basal ones, white on their posterior margins ; and each segment excepting the ultimate and basal ones, with a white interrupted band before the middle ; tail concave above, with about ten spines : feet black, more or less piceous : venter banded with white. Length over two-fifths of an inch. 9 Hair on the front, short; wings destitute of the yellow fuli- ginous color, excepting on the stigma. Length over half an inch. NOMADA Scop. Latr. 1. N, viNCTA. — Tergum with yellow bands, which are obso- letely margined with ferruginous. Inhabits Indiana. [402] Body black : head beneath the antennae, ferruginous : orbits yellow : antennas ferruginous, dusky about the middle ; terminal joint paler : collar yellow : thorax each side over the wings, with a dull ferruginous margin ; before the wings a yellow spot : wing- scale honey-yellow : wings slightly dusky, particularly the ter- minal margin : nervures honey-yellow : scutel subbilobate, yellow line on the middle, posterior margin ferruginous : metathorax near the scutel with a transverse line and an irregular, longitudi- nal, quadrate spot each side behind, yellow : tergum with a yel- low band, gradually contracted towards the middle, and obsoletely margined with ferruginous, before the middle of each segment ; anterior band a little undulated or denticulated : pectus with a triangular, yellowish spot over the fore-feet : coxae, with a yellow [Vol. I. OF NATURAL HISTORY. 779 spot : thighs ferruginous, blackish behind : tibiae and tarsi ferru- ginous and yellow : venter with two yellowish bands ; towards the tip, honey-yellow. Length 9 nine-twentieths of an inch. S Ferruginous; orbits and head before, yellow; antennas blackish towards the tip ; first joint yellow beneath ; collar, line over the wings, two obsolete ones in the middle, wing-scale ex- cepting a dot in the middle, yellow ; scutel undivided, yellow ; metathorax in greater part, yellow ; abdomen yellow, posterior margins of the segments black, submargins ferruginous. Rather more slender than the female. 2. N. BisiGNATA nob. Appendix to Long's second Expedi- tion.— The male has the head black, with the nasus and mouth yellow ; antennae beneath, rufous ; the thorax has hardly any ap- pearance of ferruginous ; but the scutel in some specimens is of that color ; the thighs, particularly [403] the posterior pair have more black than those of the female. [Ante 1, 239.] ^^ar. Abdomen rufous, immaculate. EPEOLUS Latr. E. FUMIPENNIS. — Black ; thorax bilineate, ferruginous all around. Inhabits Mexico. Body densely punctured, black : head carinate between the antennae : antennae honey-yellow at base, beneath : labrum with an obsolete, minute, ferruginous dot each side : mandibles honey- yellow at base : thorax with two slender whitish abbreviated lines and whitish lateral edge: collar with a ferruginous disk, con- tracted in the middle ; a ferruginous dot before the wings : wing- scale and scutel ferruginous : wings fuliginous : tergum, first and second segments with a yellow band, the first broader and widely interrupted ; remaining segments with a whitish band, the last segment with the addition of an obscure rufous terminal margin : tibiae and tarsi honey-yellow. Length three-tenths of an inch. The hinatus nob. also has a bilineated thorax, but it is a larger species, has a whitish spot around the base of the antennae ; lunated spot at base each side of the tergum, &c. Smaller than mercatus F. and sciitellaris nob. 1837.] 780 BOSTON JOURNAL MACROCERA Latr. 1. M. OBLIQUA. — $ Thorax with yellowish hair; tergum fasciate, second segment with an oblique band. Inhabits Indiana. Body black : head and stethidium with long, dull yellowish [404] hair : hypostoma and labrum yellow : antennae, excepting the basal joint, beneath piceous : mandibles yellow at base, with a piceous spot, honey-yellow in the middle and blackish at tip : wings slightly fuliginous ; nervures dusky : tergum, first seg- ment at base, with hair as on the thorax ; second segment with a broad basal margin of whitish prostrate hair, and a narrow oblique one on the middle; third and fourth segments with oblique bands of the same color on their middles ; fifth with the band obvious and a little oblique, intermixed with longer hairs. Length nearly three-fifths of an inch. I have numerous specimens, all of which are males. The hair of the head and thorax is slightly tinted with ferruginous. 2. M. BINOTATA. — Black; wings blackish. Inhabits Indiana. 9 Body black : head and thorax, particularly the latter, with short hair, that of the occiput and behind the scutel a little longer : labrum with prostrate hair : wings blackish violaceous : tergum on some parts, with a slight purplish reflection ; fourth segment with a transverse-quadrate white spot of prostrate hair on each side, upon its posterior margin : posterior tibiae and tarsi, with the long hairs whitish. Length about nine-twentieths of an inch. '^ A little smaller than the female ; nasus and labrum pale yellow ; antennae beneath, dirty yellowish ; wings not so dark as in the female ; tergum immaculate. Although it has some points of specific similarity with the preceding, yet it difi'ers so widely from it in other respects, that with much hesitation, I have concluded to give it a distinct place. [405] 3. M. PRUINOSA. — -Tergum with much dilated white bands; double on the second segment ; hair on the thorax yellowish. Inhabits United States. [Vol. I. OP NATURAL HISTORY. 781 % Body black : stethidium clothed with yellow-ferruginous hair : head, hair on the superior part like that of the thorax : nasus with a large, yellow, transverse spot before : labrum with prostrate whitish hairs, and generally an obscure yellowish, longi- tudinal line : antennae, rather short, beneath excepting the basal joints, dull piceous : wings hyaline : tergum, first segment, ex- cept at its tip, hairy like the thorax ; second segment with a white band at base and another on the posterior submargin, united at the sides ; posterior margin and transverse middle black; third and fourth segments white with black posterior margins ; remainder white ; tarsi ferruginous. Length two-fifths of an inch. $ Antennae, color as in male : nasus immaculate : posterior feet with long ferruginous hair. Length nearly half an inch. A common species ; at first sight somewhat like ohliqua nob. which however is much larger, the bands of the tergum much narrower and more oblique than in the present species. In magnitude this species does not seem to difier widely from that which Drury names annularis ii. jpl. 37, /. 7. That figure is, however, a very uncertain one, even as respects its genus, and in my copy of the work, does not at all agree with the description which accompanies it. The bands of the tergum have a pruinose appearance in con- sequence of the shortness of the hair of which they are composed. The antennae of the male do not reach the posterior extremity of the thorax. [406] 4. M. RUSTiCA. — Tergum with white bands, double on the second segment; hair of the thorax whitish. Inhabits Indiana. % Body black, with whitish hair : antennae longer than the stethidium ; beneath, excepting the three basal joints, dull pice- ous : nasus white : thorax with whitish hair : wing-scale black : wings hyaline ; nervures fuscous : tergum, first segment, except- ing at its tip, hairy like the thorax ; bands white, not much di- lated ; second segment with one at base and another behind the middle, confluent each side ; remaining segments with a band on the middle of each : tarsi towards their tips ferruginous. 1837.] 782 BOSTON JOURNAL Length under seven-twentieths of an inch. 9 Body much more robust ; less hairy ; but the bands of the tergum are rather wider, sometimes almost interrupted in the middle ; hair of the posterior feet yellowish ; antennae rather short ; nasus black. Length nearly two-fifths of an inch, A smaller species than pruinosa and much like it ; but it may be distinguished by the much longer antennae of the male, by the nasus being all white, and by the whitish or almost uncolored hair of the head and thorax. When recent, the color of the eyes is light blue, with three or four transverse, moveable series of longitudinal dark spots. MEGACHILE Latr. M. POLLICARIS. — % Anterior tarsi dilated, deeply ciliated, ap- pendage rather long ; spines of the anterior coxae yellow. Inhabits Louisiana. Body not very hairy, black : wings with a slight fuliginous [407] tint, particularly at tip : tergum oblong sub-quadrate : anal segment with a sinus in the tip, each side of which are small inequalities of the edge : anterior feet, coxae with promi- nent yellow spines, rufous on the exterior tip ; thighs yellow, black at tip and base ; tibiae black, yellow within and at tip, on the posterior tip a very short, acute spine ; tarsi much dilated and deeply ciliated behind, yellow-white, covered in their great- est part by a yellow broad scale, which is honey-yellow at tip ; nails honey-yellow : intermediate tarsi cordate, the lobes of one side more prominent. Length eleven-twentieths of an inch. Mr. Barabino sent me this species. It differs in many respects?' from the M. latimanus nob. (Western Quarterly Reporter) which has in that species the anterior coxae black ; the appendage of the anterior tarsi shorter, &c., but it is perfectly congeneric with it, as well as with Anthophora lagopoda Fabr., if I may judge by the similarity of the anterior feet, though it certainly ap- proaches Steles in the paucity of ventral hair. The maxillary palpi of latimanus have the second joint rather longer than the first, [Vol. I. OF NATURAL HISTORY. 783 M. BREVis. — Black ; not remarkably hairy ; anterior tarsi simple ; abdomen short. Inhabits Indiana. $ Body black, somewhat polished : head densely covered with long, yellowish hairs in front : thorax with whitish hair, sometimes tinged with yellowish, and not concealing the surface : wings a little fuliginous, tinged with violaceous : venter not, or hardly longer than broad : tergum with small, dense punctures, and a narrow, white band on each segment; anal segment trans- versely concave, at its tip emarginate, in the middle and on each side, [408] the edge has several small denticulations : anterior tarsi simple : tarsi piceous at their tips. Length less than two-fifths of an inch. 9 A little larger than the male ; with very little hair on the front ; abdomen short conic-oval ; venter hairy. Length two-fifths of an inch. The male of this species closely resembles that of pugnata$. so much so, that it might readily be considered as the same ; but the anterior tarsi are not dilated, and the abdomen, although similarly terminated, is remarkably shorter. M. PUGNATUS. — Black ; anterior tarsi dilated in the male, with the first joint prolonged at its anterior angle beyond the tip of the second joint. Inhabits Indiana. % Body black, not densely hairy : head densely covered with long whitish hairs in front : thorax with whitish hair not con- cealing the surface : wings fuliginous, tinged with violaceous ; venter longer than broad : tergum with small, dense punctures ; and a narrow white band on each segment ; anal segment trans- versely concave, at its tip emarginate in the middle, and on each side the edge has several small denticulations : anterior tarsi whitish, dilated, and ciliated; anterior tip of the basal joint pro- longed a little beyond the tip of the second joint, and its whole length excavated before; anterior tip of the second joint also prolonged almost to the tip of the third joint; fourth joint not dilated : anterior tibise with dilated crowded punctures : anterior coxae, each with a prominent, black spine : intermediate and posterior tarsi piceous at tip. 1837.] 784 BOSTON JOURNAL Length over two-fifths to nearly half an inch. 1? Frontal hair shorter and less conspicuous; anterior feet simple ; venter with dense yellow hair. Length over half an inch. [409] It is smaller, much more slender and much less hairy than either latimanus, or poUicaris nob., and has a somewhat different habit. ANTHOPHORA Latr. 1. A. ABRUPTA. — % Black; thorax with cinereous hair; nasus and labrum whitish. Inhabits Indiana. Body robust : antennae on the anterior side of the basal joint, whitish : nasus, and each side of it to the eye yellowish, a little tinged with fulvous in the middle : labrum pale yellowish, hairy : mandibles having a whitish spot near their outer base : thorax, pleura and pectus, clothed with whitish cinereous hair : wings hyaline; nervures fuscous ; stigma not at all dilated: pleura with an oblique line of black hairs passing downward and back- ward from the posterior wings : tergum with much shorter and less dense hair than that of the thorax, and black ; that of the basal segment a little longer, and near the metathorax partaking of the color of the hair of that part : feet black ; the longer hairs of the anterior pair are whitish. Length over half an inch. It is less robust than A. pilipes F. and is equally well clothed with hair on the anterior part of the body, but the transition of color between the hair of the thorax and that of the tergum is much more abrupt. It has much the appearance of a small hum- ble-bee and also resembles Andrena thoracica F. 2. A. FRONTATA. — Thorax with yellowish hair; hypostoma and basal joint of the antennae beneath, and spot at base and near the tip of the mandibles, yellow. Inhabits Louisiana. [410] S Body black : hypostoma yellow and with yellow hair : an- tennae with the inferior longitudinal half of the basal joint yel- low, and with dense yellow hair : nasus yellow, with yellow hair : labrum black, covered by the hair of the nasus : mandibles with [Vol. I. OP NATURAL HISTORY. 785 a yellow oval spot at base and a slender obsolete one near the tip : maxilla with an obsolete yellowish spot before the palpi : palpi with a few rigid hairs ; terminal joint one-third the length of the preceding joint : tongue ferruginous : vertex in the middle, having a few yellow hairs : thorax with dense, long, yellow hair : wing-scale blackish: wings with a slight dusky tint; nervures black, exterior recurrent nervure entering the outer cubital cellule directly opposite to the outer nervure of the cellule : ter- gum hairy ; hairs black, rather long ; a few yellow hairs towards the middle of the first segment : anterior feet with yellow hair on the posterior edge : hind feet, hairs not much elongated. Length half an inch. Sent to me by Mr. Barabino. Differs from the abnqifanoh., in being less robust, the hair of the thorax being pale yellbw, and the mandibles having a white spot near their tips. 3. A. TAUREA. — Thorax pale, with a dusky central spot, from which proceed two lines to the anterior angles. Inhabits Indiana. Body .black with whitish cinereous hair: head, hair on the vertex dusky : thorax with whitish hair ; a large, obvious, cen- tral, dusky spot, with a line curving from it to each anterior angle of the thorax : scutel, hair dusky : metathorax and first segment of the tergum, with cinereous hair; remaining segments of the tergum with the hair very short and black, excepting on the posterior margins which are pure white : 9 ultimate segment with [411] a glabrous, subcarinate, triangular, oblong space above : wings hyaline ; nervures fuscous ; stigma not suddenly dilated : terminal third of the radial cellule slightly separated from the edge of the wing ; terminal nervure of the third cubital cellule inserted at the middle of the nervure of the radial cellule. Length $ about two-fifths ; 9 half of an inch. The thoracic spot will readily distinguish this species. The manners and habits of the species may be likened to those of the A. parietina Latr. It digs a cylindrical hole in compact clay or adhesive earth on the side of a bank, or in earth retained amongst the roots of an overturned tree. The hole is two or three inches in depth. The sides and bottom are of a dark brown color, quite 1837.] 50 786 BOSTON JOURNAL smooth and somewhat polished, containing a quantity of white pollen, considerably larger than the artificer itself. The entrance consists of a cylinder extending downwards from the mouth of the hole, more than an inch in length, and consisting of small pellets of earth compacted together, very rough on the exterior and smooth within. A species of Odynerus was numerous in the same locality in which I observed the above, and sometimes entered the holes ; but the exterior cylinder does not agree with that which is attributed to 0. muraria Latr. which Kirby and Spence inform us is composed of " little masses so attached to each other, as to leave numerous vacuities between them, which give it the appearance of filagree-work." Many of the tubes of the taurea, have a fissure above, throughout the whole length ; resembting in this respect the shell SiUquaria. It does not agree with Fabricius' description of Melecta remigata. [412] XYLOCOPA Latr. X. CAROLINA Fabr. — This species was referred by Fabricius to the genus Centris, and is even now generally considered as be- longing to that genus. But doubting the accuracy of that arrangement, I found on examination, that the labial palpi are rectilinear, the terminal joints being in a right line with the others, and the maxillary palpi are six-jointed. The] mandibles have only one large tooth, which is on the inner side. The cir- cumstance of Fabricius referring to Drury's fig. 1, pi. 43, of vol. i, for Bombus virgineus Linn., leads me to suppose that he had this species also in view in that description. But as that descrip. tion in the Syst. Piez. p. 346, agrees very well with one of our largest and finest species of Bomhus, rather than introduce a new name, I would transfer the quotation of Drury's figure to the description of X. Carolina, (^Centris), F. I add the follow- ing description of it, which I formerly drew out, with the name of valida, under the belief that the Carolina, is really a Centris, and therefore altogether different. Blackish ; a prominent, compressed, obtuse tubercle between the antennae; thorax hairy. Inhabits United States. 9 Body black, tinged with purplish ; head with close set, [Vol. I. OF NATURAL HISTORY. 787 discoidal punctures; an obvious, compressed tubercle between the antennne, rounded at its tip : labrum conic : thorax tinged with greenish ; with pale yellow hair, except on the middle : wings fuliginous, subopake at tip : tergum tinted with very ob- scure green: basal joint covered with pale yellow hairs: pleura beneath the wing, with yellow hairs. Length about four-fifths of an inch. ['413] % Nasus white. The tubercle of the head is very distinct. Common in the Union. The males may be distinguished by their larger and more approximate eyes and white nasus. It varies in having the hair of the thorax and of the first abdominal segment, almost ferruginous. 2. X. LATERALIS. — Violaccous ; abdomen with a posterior lateral cinereous spot. Inhabits Mexico. % Body blackish-violaceous : head black : nasus and labrum white : antennae with an anterior white line on the radical joint : genae with a few gray hairs : wings, first recurrent nervure enter- ing the third cellule within the distance of its own breadth from the nervure of intersection of the third cellule: abdomen, each side near the tip with a cinereous spot of hair, extending up- wards on each side of the venter, but becoming obsolete towards" the base. Length over seven-tenths of an inch. BOMBUS Latr. 1. B. SONORUS. — Yellow; head, thoracic band and abdomen behind black. Inhabits Mexico. Body yellow : head black : thorax with a broad black band in the middle : wings violaceous-black : tergum with the first, second and third segments yellow, the others black : beneath black. Length 9 four-fifths of an inch. Resembles the fervidus Fabr. so closely that it may readily be mistaken for it, but that species has only two segments of the tergum clothed with yellow hair; that of [414] the second one, however, is so much elongated as to conceal a considerable por- 1837.] 78o BOSTON JOURNAL tion of the next segment. The color is a much deeper yellow than that of fervida. 2. B. EPHiPPiATUS. — Black ; pleura and base of the tergum yellowish. Inhabits Mexico. Body black : pleura pale yellow : wings dusky, tinged with violaceous : tergum pale yellow towards the base j this color is gradually narrowed behind and terminates on the third segment, forming somewhat of a semioval, with its base to the thorax and confluent with the color of the pleura. Length less than half an inch. 3. B. TERNARius. — Yellowish; thorax faseiate; tergum ful- vous in the middle. Inhabits Indiana. Head black : thorax with dull yellowish hair, and a blackish band on the middle ; wings with a slight yellowish tinge ; ner- Tures fuscous : tergum fulvous on the second and third segments; first and fourth segments yellowish ; remaining segments black. Length % nearly three-fifths of an inch. TRIGONA Jurine, Latr. 1. T. BiLiNEATA. — O Blackish J antennae, beneath, labrum and two lines on the nasus pale. Inhabits Mexico. Body piceous black ; flagellum of the antennae beneath, obsolete narrow anterior orbits, two rather broad lines on the hypostoma, labrum and mandibles somewhat pale : wings hyaline, slightly tinged with fuliginous towards the base ; cubital cellules obso- letely divided into three by two [415] hardly perceptible ner- vures ; ultimate cellules hardly attaining to the tip of the wing ; the second receiving the recurrent nervure : feet not different in color from the body ; posterior tibise with the ciliae of the edge sparse. Length less than one-fourth of an inch. It is somewhat smaller, and less robust than the ruficrus Latr. of which the posterior tibiae are densely ciliated. I am indebted to Dr. Klug for a specimen of the ruficrus : and it is very differ- ent from the amalthea and spinipes Fabr. My specimens are [Vol. I. OF NATURAL HISTORY. 789 workers, and I did not find tlie nest or ascertain the kind and importance of the honey they make. The generic name is almost too much like Trigonia of Conchology, but as the pronunciation differs it can remain . 2. T. LIGATA. — O Blackish ; abdominal segments margined with ochreous. Inhabits Mexico. Body brownish-black, hairy; antennae beneath, particularly the basal joint, anterior half of the anterior orbits, line distin- guishing two lobes of the hypostoma and mouth, dull yellowish : wings slightly tinged with fuliginous, particularly towards the base ; nervures of the cubital cellules like those of the hilineata nob., but the first one is much more distinct : tergum shortly hairy ; posterior margins of the segments ochreous : feet dull honey-yellow ; tip of the posterior tibiae and base of the first tar- sal joint black. • Length about two fifths of an inch. Of this I obtained but a single specimen, which is a worker. It is widely different from the preceding species, particularly in being hairy, and is much larger and of a somewhat different habit. I have carefully compared it with Latreille's descriptions and figures of Melijtona [416]/«i'os« Ulig-, scuteUaris Latr.,/as- ciata Latr., interrupta Latr., and other species as given in Hum- boldt's Zoological Observations ; and even should it be referred to that genus notwithstanding its denticulated mandibles, I have endeavored to draw out such characters as may distinguish it from them. Latreille, however, says of Melipona, " Mandibles sans dentelures apparentes " which entirely includes this species, although it agrees in habit. 1837.] 790 ADDITIONS AND CORRECTIONS. ADDITIONS AND CORRECTIONS. Page • 35, in note,/or Weidmann reac? Wiedemann. ■ 57, line 6, for teegis[sa] read tekgis[s]a. 94, after description of F. scdtellaris, add : [A distorted specimen probably belonging to Platyrmt (Agonum) melanarius. Similar distortions are found in other species. — Lec] • 98, line 7 from bottom, for Copdotomus read Coptotomua. ■ 109, to note after E. obesps, add : at all approaching this species in size. — Lec] 130, line 6 from bottom, for Sp^fflRiciuM read Sph^erididm. ■ 153, line 8, for axtricata read exteicata. ■160, line 7 from bottom, for Ichnomera read Tschtiomera. "176, line 21, for Errhinus read Erirhinus, 177, line 19, for Crcuuo read Citrcplio. '212, line 18 from bottom, for stiata read striata. • 224, line 15, for Oriaceris read Crioceris. • 230, line 7 from bottom, for penicillatus read penicellatcb. ■272, line 16, for Hydaticas read Eydaticus. ■ 277, after description of C. jactata dele note, and add : [Belongs to Telephorus. — Lec] ' 301, line 11 from bottom, for primona T6a,d primoria. ■ 475, line 4 from bottom, for fascidita vead/astidita. • 477, after description of F. decora, add : [Also a Platynus. — Lec] 618, line 17, for 15-puNCTATrs read 12-puNCTATas. • 625, line next to bottom, /or Fabr. read Latr. ■ 528, after remarks on C. bipustulata, add : [This is the insect afterwards considered by Dejean th« same with the Brazilian C. crenata, but is known at present as Aspidoglossa subangulata. — Lec] • 584, line 8 from bottom, for T. faber read T. brunneus. ■ 590, in line 22, add [158]. ■ 637, line 6, for marginilis read marginalis, • 664, line 6 fi-om bottom, for melitps read mellitps. • 672, to title in line 1, add -May, 1836, and change the date »t bottom of pages 673—745, to 1836. INDEX TO VOLUME II. Abax coracinus Acaenitus decorus melleus Acanthia interstitialis Acanthocerus aphodiodoides globosus laevistriatus Acanthocinus quadrigibbus Acanthoderes quadrigibbus Acheta exigua Acilius mediatus Acmaeodera ornata pulchella tubulus Acordulecera dorsalis Acrydium flavovittatum Actenodes acornis Acupalpus conjunctus consimilis debilipes elongatulus luguhris misellus obsoletus partiarius pauperculus rotundicoUis tantillus testaceus Adelocera aurorata avita brevicornis discoidea impressicollis obtecta Adimonia externa rufosanguinea tuberculata Adrastus quietus recticollis Aeschna clepsydra constricta fraterna furcillata 482, 539 Aescbna heros 702 Janata 703 Junius 248 multicincta 653 obliqua 653 ^-guttata 653 stigmata 665 vinosa 665 Aethus bilineatus 238 Agabus ambiguus 508 arctus 592 erythropterus 591 gagates 592 infuscatus 672 nitidus 238 obtusatus 593 seriatus 548 stagninus 505 striatus 548 striola 505 Agathidium pallidum 504 Agatbis polita 504, 548 ornata 549 Agonoderus lineola 548 pallipes 505 Agrilus arcuatus 504 bilineatus 548 cogitans 548 fallax 618 geminatus 620 granulatus 618 lateralis 619 otiosus 620 politus 618 pusillus 222 putillus 344 ruficollis 221 Agonum cupripenne 623 errans 109, 622 femoratum, 390 foveicolle 389 limbatum 392 luctuosum 391 vwrosum 388 391 388 388 392 391 393 390 242 511 511 509 513 511 512 513 511 513 511 513 231 684 684 465 466 596 596 598 596 105, 595 104, 596 103, 596 597 596 596 597 595 475 536 476 481 536 481, 536 469 792 INDEX. Agonum nutans 536 Altica vians 225 obsoletum 536 uniguttata 229 8-punctatum 476 Alphitophagus bifasciatus 158 orbicoUe 536 Alyson malleus 762 palliatum 474, 536 oppositus 761 punctiforme 536 Amara angustata 463, 542 rufipes 481 avida 95 striatopunctatum 536 basillaris 463 542 suturale 535 conjinis 95 Agrion antenuata 410 dolosa 542 anomalum 409 furtiva 543 apicalis 410 grossa 543 hastata 409 impunctata 542 venerinotatum '409 impuncticoUis 463 542 verticalis 408 indistincta 463 Agriotes mancus 111 lucidula 463 striatulus 111 luctuosa 483 truncatus 111 musculis 462 541 Akis muricata 149 obesa 464 542 Aleochara bilobata 589 sera 542 bimaculata 101, 585 Amblycliila cylindriformis 89 521 exigua 589 Amnestui spinifrons 243 falsifica 588 Amphasia fulvicollis 481 fasciata 585 interstitialis 481 fuscipes 585 Amphicrossus ciliatus 288 indentata 586 Ampulex canaliculatus 750 lustrica . 585 Anaphia 9 minima 585 pallida 10 nitida 588 Anaspis rufa 309 obscuricollis 585 4-punctata 164 propera 587 triloba 163 4-punctata 586 Anax Junius 389 semicarinata 587 cincticoUis 534 simplicicoUis 587 collaris 534 verna 588 Ancbomenus coracinus 478 Aleodorus bilobatus 589 corvinus 477, 534 Allantus apicalis 676 decentis 534 bardus 678 decorus 477 534 cestus 677 deplanatus 477 epicera 677 extensicollis 534 epinotus 676 gagates 478 534 goniphorus 676 marginalis 477 pannosus 678 Ancylochira decora 594 AUecula nigrans 308 striata 594 obscura 308 ultramarina 594 Altica bimarginata 226 Ancyronyx variegatus 291 centralis 228 Andrsena valida 772 ceracoUis 669 Anisodactylus agricola 461, 545 crenicoUis 668 baltimorensis 461, 545 gibbitarsa 225 csenus 462, 545 mellicollis 668 carbonarius 460, 545 nana 227 dilatatus 544 picta 228 Isetus 545 5-vittata 227 luctuosus 460 senilis 228 merula 545 scripticoUis 226 rusticus 460, 545 suturella 344 St. Crucis 461 triangularis 226 striatus 461 INDEX. 793 Anisodactylus tristis 460 Anthrax Oedipus 61 Anobiuin bistriatum 281 scripta 59 carinatum 120 Simson 60 gibbosum 280 Anthribus alternatus 314 notatum 281 bimaculatus 314 tenuestriatum 281 capillicornis 313 Anomala binotata 301 coffecB 313 cincta 654 limbatus 314 gemella 654 lugubris 313 Anomalon attractus 696 notatus 312 densatus 698 4-notatus 313 divaricatus 699 tomentosus 315 ejuncidus 697 variegatus 314 emarginatus 699 Apate basillaris 181 humeralis 682 bicaudatus 180, 662 lineatulus 699 bicornis 180 mellipes 697 punctatus 320 recurvus 698 Apenes sinuata 440 Anomoglossus emarginatus 485 Aphanisticus gracilis 599 pusillus 486 Aphonus tridentatus 134 Anopheles crucians 39 Aphodius bicolor 136 ferruginosus 40 concavus 138 punctipennis 39 femoralis 139 5-fasciatus 40 innexus 651 Anoplitis scapularis 205 oblongus 138 Anteon tibialis 730 serval 651 Anthraxia quercata 595 strigatus 137 viridicomis 105, 595 tenellus 137 Anthicus basillaris 165 terminalis 137 bifasciatus 309 vittatus 295 bizonatus 310 Aphrophora bilineata 381 cervinus 310 obtusa 382 cmctus 165 parallela 382 coUaris 311 quadrangularis 382 constrictus 309 4-notata 381 Impressus 312 Apion rostrum 316 labiatus 311 Sayi 316 lugubris 310 Apocellus sphsericollis 571 pallidas 310 Aporosa rostrata 48 politus 310 Aradus 4-lineatus 249 terminalis 311 Arsecerus coflFeae 313 Anthocomus circumscriptus 119 Ardistomus viridis 451 flavilabris 279 Aretharea helluonis 524 scincetus 279 Arhopalus charus 664 terminalis 280 Asaphes bilobatus 611 Anthophagus brunneus 102 baridius 612 verticalis 578 decoloratus 617 Anthophora abrupta 784 hemipodus 612 frontata 784 memnonius 612 taurea 785 ruficornis 612 Anthrax analis 60 Asclera punticoUis 161 alternata 61 ruficollis 160 caliptera 62 thoracica 161 edititia 353 Asida anastomosis 151 irrorata 61 opaca 150 lateralis 59 polita 151 limatulus 354 Asilus sericeus 63 morioides 58 vertebratus 62 794 INDEX. Ateuchus ebenus 134 Bembidium nitidulum 550 nigricornis 133 oppositum 501, 553 obsoletus 133 postremum 551 viridis 648 proximum 502 Athous jequalis 602 punctatostriatum 498, 549 discalceatus 604 rupestre 504 pt/rrhicus 602 semifasciatum 552 vagrans 602 sigillare 499, 551 Atimia confusa 334 4-maculatum 501 tristis 334 stigmaticum 499 Atomacera cellularis 674 tetracolum 503, 551 debilis 674 troglodytes 503 Atomosia glabrata 66 tripunctatum 553 Atta fervens 734 ustulatum 504 Attagenus cylindricornis 290 variegatum 503 megatoma 290 Beris fuscitarsis 52, 353 spurcus 290 Berosus striatus 293 Attelabus pubescens 315 Bethylus cellularis 726 rbois 315 centratus 727 scutellaris 315 musculus 726 Aulonium parallelopipedum 324 pedatus 727 Bibio albipennis 69 Babia 4-guttata 208 articulatus 69 Baccba costata 357 heteropterus 69 fuscipennis 86 orbatus 69 Bsetis arida 412 pallipes 68 interpunctata 411 Blaps acuta 152 obesa 412 sequalis 657 verticis 412 carbonaria 152 Banclius sequatus 701 celsa 657 fugitivus 701 extricata 153 nervulus 700 bispilabris 152 Bassus gibbosus 704 impolita 656 limitaris 703 maura 656 sanctus 703 obscura 152 Baridius interstitialis 177 obliterata 657 Batrisus riparius 236 obsoleta 153 Bdella oblonga 19 opaca 154 Belomichus ephippiatus 563 parva 658 Bembex fasciata 751 ruida 656 longirostris 751 suturalis 152 Bembidium coxendix 97, 559 tricostata 154 insequale 97, 549 Blapstinus interruptus 155 inornatum 502 Bledius 100 affine 501 cordatus 577 antiquum 498 emarginatus 577 contractum 500 Boletobius angularis 580 decipiens 501 cincticollis 581 dorsale 499, 550 cinctus 102 ephippiatum 553 obsoletus 580 fallax 501 pygmseus 580 flavicauda 502 venustus 580 honestum 498, 550 Boletophagus corticola 305 incurvum 554 Bombus ephippiatus 788 inornatum 502 sonorus 787 Isevigatum 499, 550 ternarius 788 laevum 503 Boros unicolor 305 nigrum 500, 551 Bostrichus bicaudatus 181 index: 7S«) Boatrichus bicornis 180 Buprestis geminata 106 exesus 317 geranu 593 fasciatus 318 gibbicoUis 104, 591 pini 319 granulata 104 politus 318 bybernata 591 xylographus 318 ignara 597 Brachiacantha albifrons 233 impedita 593 Brachinus alternans 630 lateralis 103 cyanipennis 91 liberta 590 fumans 439 longipes 106 stygicornis 527 lurida 590 Brachycerus humeralis 316 obscura 391 Brachygaster reticulatus 682 ornata 592 Brachys gracilis 599 pulcbella 591 ovata 598 6-guttata 103 591 purpurea 599 tubulus 592 tesselata 598 ultramarina 594 Brachystylus acutus 174 virginica 590 Brachytarsus alternatus 314 viridicornis 105 ,594 brevis 315 volvulus 592 limbatus 314 Buthus 10 obsoletus 315 vittatus 11 tomentosus 315 Byrrhus alternatus 291 variegatus 315 Byturus unicolor 126 Bracon argutator 706 dorsator 705 Calandra compressirostris 179 explorator 710 Calathus gregaria 472 hebetor 705 Calleida decora 440 527 honestor 709 marginata 441, 526 inescator 709 purpurea 527 mellitor 708 smaragdina 527 paululor 709 viridipennis 441 526 pectinator 704 Calepteryx aequabilis 405 populator 710 maculata 405 puUator 709 opaca 405 rugator 704 virginica 405 rugulosus 707 virgo 405 scrutator 707 Callidium amoenum 193 thoracicus 711 brevilineum 194 tibiator 710 cucujiforme 334 transversus 708 discoideum 192 trilobatus 710 fulvipenne 194 vestitor 706 ignicoUe 193 viator 710 pallidum 193 Bradycellus atrimedius 466 sexfasciatum 194 autumnalis 473 suturale 192 rupestris 505, 508 Callisthenes luxatus 96 vulpeculus 458 Calobata antennaepes 83 Bruchus discoideus 171 pallipes 84 Bryaxis dentatus 236 Caloptenus bivittatus 238 Buprestis acornis 592 femoratus 238 atropurpurea 103 Calosoma calidum 491 , 529 campestris 106 externum 97 confluens 103 laeve 529 culta 592 longipenne 96 cyanipes 106 luxatum 96 , 529 dentipes 591 obsoletum 95 divaricata 105, 590 scrutator 491 796 INDEX. Calyptocephalus bifarius 635 Cecidomyia destructor 4 Camptorhina atricapilla 144 Centronipus calcaratus 303 Campylomyza scutellata 44 rufipes 304 Cantharis angulatus 117 Cerambyx solitarius 191 basillaris 117 Cerapbron armatus 724 bidentata 278, 637 destructor 6 bilineatus 118 stigmatus 724 fi-axini 118 Ceratina dupla 775 invalida 635 Ceratopogon scutellatus 349 j aetata 277 Cerceris fumipennis 762 laticornis 278 sexta 763 ligata 276 Cercopis bicincta 381 lineola 277 obtusa 256 modestus 116 quadrangularis 256 nigricornis 169 Cercus niger 124 parallela 277 pallipennis 124 percomis 636 Cercyon 294 rotundicollis 276 apicale 131 rufipes 118 Cermatia coleoptrata 29 scitula 278 Ceropales apicalis 750 tomentosa 275 interrupta 750 tricostata 635 Cerylon castaneum 321 Canthon ebenus 134 Cetonia barbata 140 nigricornis 133 inda 141 obsoletus 133 vestita 301 viridis 648 Cbalcis amoena 719 Carabus carinatus 529 debUis 720 depressus 449 Cbalcolepidius viridipilis 600 extemus 529 Chalcophana picipes 211 furcatus 465 Cbalcophora Uberta 590 Goryi 494 virginica S90 interruptus 493, 528 Cbauliognatbus marginatus 277 ligatus 529 Chelifer muricatus 11 limbatus 493 oblongus 12 lineatopunctatus 494, 589 Cbelonus basillaris 716 paUipes 465 parvus 715 serratus 494, 529 sericeus 716 sylvosus 492 Cbelymorpba cribraria 207 vinctus 403, 528 Chironomus devinctus 349 Cardiophorus cardisce 604 festivus 41 convexus 110 geminatus 42 curiatus 609 glaucurus 42 erythropus 109 lineatus 42 Carpophilus brachypterus 289 lineola 42 floralis 124 lobifer 41 niger 125 modestus 41 pallipennis 124 stigmaterus 42 unicolor 288 tsenionotus 349 Casnonia pennsylvanica 447 Chlsenius sestivus 484 rufipes 524 circumcinctus 531 Cassida bivittata 207 cohaltinus 484 cribraria 207 congener 484 erythrocera 341 elegantulus 486, 531 unipunctata 206, 666 emarginatus 485 Catops basillaris 124 impunctifrons 486 opaca 289 laticoUis 486 simplex 289 lithopbilus 485 vittatus 347 nemoralis 487 INDEX. 797 Chlaenius pensylvanicua 487 Cicindela marginalis 429, 523 pubescens 488 marginata 428, 522 pusillus 485 531 micans 435 sericeus 483 ohliquata 423, 522 soccatus 532 obscura 429 solitarius 487 obsoleta 91 tomentosus 483 ,531 pulchra 91 vicinus 488 punctulata 431 vigilans 531 purpurea 429, 523 virens 531 pusilla 2,433 viridanus 485 repanda 522 Chlorion canaliculatum 750 rugifrons 429 Chlorops proximus 730 scutellaris 89 Chceridium capistratum 132 6-guttata 425, 523 Chrysis carinata 731 signata 2, 428, 522 Chrysobothris dentipea 591 tristis 430 hybernata 591 unicolor 522 sexguttata 104 591 unipunctata 424, 522 sessignata 591 variegata 428, 522 ultramarina 594 violacea 434, 523 Chrysomela barda 667 vulgaris 422, 522 basillaris 217 Cinetus mellipes 756 dissimilis 217 Cistela amoena 158 flavomarginata 218 atra 307 formosa 217 basillaris 158 hybrida 216 brevis 158 multipunctata 216 erythroptera 158 auripennis 217 fraterna 159 obsoleta 217 obscura 308 caeruleipennis 342 sericea 159 polygon! 342 Clerus bumeralis 122, 640 spiraeas 342 nigrifrons 121 trivittata 343 nigripes 122 Chrysopa euryptera 414 oculatus 639 oculata 414 pallipennis 283 Chrysops 4-vittatiis 54 4-signatus 638 Chrysotus abdominalis 362 rosmarus 121 concinnarius 361 sanguineus 639 nubilus 361 trifasciatus 283 Cicada aurifera 252 undatulus 639 dorsata 252 unifasciatus 284 hieroglypbica 371 Clivina bipustulata 450, 528 marginata 251 globulosa 452 parvula 253 lineolata 451 pruinosa 251 pallida 452 rimosa 372 pallipennis 453 synodica 253 4-maculata 528 vitripennis 372 rostrata 451, 528 Cicindela 419 rufescens 452 abdominalis 434 sphaericollis 452 albohirta 2, 424 viridis 451 10-notata 1, 432 Clypeaster fasciatus 320 dorsalis 1 426 522 Clytus annosus 334 12-guttata 523 caprea 200, 664 formosa 1, 432 cbarus 664 falgida 90 confusus 333 hirticollis 2, 423, 522 hamatus 200 limbata 90 supemotatus 200 798 INDEX. Clythra mucida 666 Colymbetes gutticollis 556 4-guttata 208 interrogatus 557 Cnemidotus 15-punctatus 518 Maccullochii 508 Coccinella abdominalis 233 nigricoUis 272 albifrons 233 nitidus 511 binotata 346 obtusatus 513 bioculata 233 seriatus 511 bipunctata 233 stagninus 513 cacti 671 taeniolis 556 dentipes 671 venustus 98, 512, 557 humeralis 234 Conops marginata 73 labiculata 232 nigricornis 74 lugubris 232 sagittaria 73 lunatomaculaia 232 tibialis 363 mali 232 Conurus cinctulus 583 mnnda 670 crassus 582 notans 346 Copelatus IQ-striatus 513 parenthesis 232 glyphicus 513 15-punctata 232 Copris anaglypticus 131 tibialis 233 colonica 649 tridens 232 histeroides 132 20-mactilata - 234 incerta 649 undulata 231 procidua 650 puUata 346 quadridens 650 normata 346 triangularis 132 proba 347 Coproporus ventriculus 583 Coeliodes acepbalus 173 Coptera polita 728 Coslioxys alternata 778 Coptotomus interrogatus 98, 512, 557 8-dentata 777 serripalpus 558 Coslomera coryli 220 Copturus oculatus 172 Colaspis aterrima 212 operculatus 173 convexa 212 Cordulia obsoleta 402 10-notata 213 tenebrosa 395 denticoUis 215 Cordultgaster fasciatus 392 dubiosa 214 Cordylura qualis 366 favosa 214 Corethra punctipennis 43 interrupta 215 Coreus alternatus 243 ovata 211 armiger 244 pallida 211 lateralis 245 picipes 211 ordinatus 244 prsetexta 211 Corixa alternata 261 puncticoUis 212 interrupta 250 6-notata 213 Corthylus fasciatus 318 striata 212 Corticaria 8-dentata 183 4-notata 213 Corymbites pyrrhos 602 Colastus semitectns 288 sulcicoUis 602 Colletes insequalis 770 hamatua 605 Colydium bipunctatnin 183 fallax 606 lineola 324 vernalis 607 longiusculum 324 hieroglyphicus 607 parallelopipedum 324 Crabro arcuatus 759 Colymbetes ambiguus 510 confluens 758 bicarinatus 512 Cratacanthus pensylvanicus 544 calidus 508 Cratonychus 621 discolor 511 corticinus 113 erytliropterus 509 Cratoparis lugubris 313 f*»nestrali8 509, 557 Crypticus obsoletus 165 glyphicus 512 Cryptobium bicolor 670 INDEX. 799 Cryptobium cinctum 570 latebricola 570 Cryptocephalus abdominalis 208 nigricornis 208 fasciatus 209 punctipes 209 femoratus 210 recurvus 210 bivittatus 210 confluens 210 4-maculatu9 210 Cryptohypnus abbreviatus 113 choris 608 dorsalis 108, 608 pectoralis 608 silaceipes 113 Cryptops hyalina 30 postica 31 6-spinosa 30 Cryptorhynchus oculatua 172 operculatus 172 Cryptus caliptenis 690 cestus 690 conquisitor 689 discitergus 689 ductilis 690 grallator 692 inquisitor 690 micropterns 694 nuncius 693 orbus 688 pleurivinctus 691 subclavatus 693 tenellus 690 Ctenophora abdominalis 45 fuliginosa 44 Cucujns biguttatus 326 modestus 327 Culex damnosus 40 punctipennis 39 5-fasciatu3 39 taeniorhyncus 40 triseriatus 40 musicus 348 Cupes cinerea 643 concolor 644 trilineaia 644 Curculio acutus 173 auricephalus 173 Cuterebra noxialis 37 Cybister dissimilis 506 fimbriolatus 506 Cyclonotum exstriatum 647 Cydnus bilineatus 242 spinifrons 242 Cychrus bilobus 490 elevatus 490 stenostomiiB 490 Cychrus unicolor 490 Cymatodera bicolor 282 inornata 638 longicollis 283 undulatus 283 Cymindis complanata 446, 526 decora 440 laticollis 526 pilosa 442, 526 platicoUis 526 pubescens 442, 526 purpurea 441 pustulata 440 sinuata 440 viridipennis 441 Cyplion discoideus 272 ovalis 272 ruficoUis 273 Cytilus varius 291 Dacne lieros 126 Daptus incrassatus 544 Dasypogon abdominalis 64 argenteus 65 cepphicus 354 cruciatus 66 politus 65 6-fasciatus 64 trifasciatus 64 Dasytes 637 Dectes spinosus 330 Delphax tricarinata 255 Dendrophilus punctulatus 270 Dexia analis 367 vertebrata 366 Dermestes marmoratus 126 Diabrotica tricincta 222 Diaperis bifasciata 158 excavata 157 Dicselus chalybceus 533 dilatatus 489 elongatus 489, 533 furvus 533 ovalis 533 purpuratus 488, 533 sculptilis 489 splendidus 489 violaceus 489 Dicerca divaricata 106, 591 lurida 590 obscura 591 Dicrepidius soleatus 613 binus 615 Didymops Servillei 395 Dilophus orbatus 70 spinipes 71 stigmaterus 70 stygius 352 800 INDEX. Dilophus thoracicus 71 Eburia 4-geminata 333 Dioctria 8-punctata 63 Ecyrus dasycerus 329 Diopsis brevicornis 3 Edrotes rotundus 149 Diozodes pallida 193 Elapbidion mucronatum 202 Dipolepis armatus 716 Elaphrus cicatricosus 530 impatiens 717 fuliginosus 529 pedatus 717 riparius 496 B-lineatus 716 ruscarius 497, 530 stigmatus 717 Elasmocerus terminatus 638 Diplotaxis carhonaria 299 Elater abbreviatus 112 frondicola 300 abruptus 600 liberta 299 acanthus 615 sordida 299 agonus 606 testacea 300 apicatus 605 Discocephala ahdominalis 64 areolatus 108 rufiventris 64 armus 606 Ditoma 4- guttata 326 attenuatus 600 Dolichopus abdominalis 362 auripilis 112, 602 cupreus 76 auroratus 618 cuprinua 76 avitus 620 femoratus 76 baridius 612 obscurus 75 basilaris 111 patibulatus 76 bellus 108, 614 sipho 75 bilobatus 610 unifasciatus 75 binus 614 Donacia aequalis 202 bisectus 113, 614 confluens 340 cardisce 604 metallica 338 choris 608 quadricollis 337 cinereus 621 pusilla 339 circumscriptus 614 rufa 339 claricoUis 616 subtilis 338 clypeatus 628 sulcicoUis 339 communis 622 Dorcaschema alternatum 188 convexus 110, 603 nigrum 331 corticinus 113, 621 Dorcus brevis 303 cucullatus 613 parallelus 146 curiatus 609 Dorcatoma simile 642 cylindriformis 114, 601 Dortbesia fasciata 162 decoloratus 617 flavicornis 162 dilectus 613 Doryphora 10-lineata 218 discalceatus 604 3-maculata 219 discoideus 619 Dryobius 6-fasciatus 195 discoideus 599 Dytiscus biguttulus 510 dorsalis 108, 608 bimarginatus 556 ectypus 601 calidus 508 erythropus 109 confluens 554 extriatus 614 fimbriolatus 506 fallax 605 habilis 555 fenestratus 609 liberus 271 finitimus 616 mediatus 507 fissilis 621 Oolighukii 555 geminatus 614 taeniolis 508 hamatus 605 thoracicus 272 hemipodus 612 verticalis 506 hieroglyphicus 607 impressicollis 620 Ebaeus apicalis 280 inflatus ^il pusillus 279 insipiens 622 INDEX. 801 Slater inquinatiis 611 Engis heros 125 Icevigatus 600 4-maculata 645 leptiirus 619 Enoplium damicorne 641 linibalis 601 dislocatum 284 linteus 114 603 distrophum 284 lobatus 114 610 laticorne 641 maiicus 111 603 marginatum 120 marmoratus 618 oculatum 639 memnonius 611 4-punctatum 120 mendica 610 thoracicum 120 morio 600 Epeolus fumipennis 779 muscidus 624 Ephebus limbatus 348 nigricoUis 114 Ephemera hilaris 413 obesus 109 603 Ephydra hians 371 oblessus 599 Epicaerus imbricatus 178 obliquus 610 Epierus nigrellus 264 obtectus 618 Ep'phanis canaliculatus 625 operciilatus 618 Epitheca cynosura 403 pectoralis 608 seviiaquea 403 pennatus 619 Epomis tomentosus 483 pertinax 623 Epophthalmia cinnamomea 395 piceus 600 Epuraea rufa 287 pyrrhos 602 Erioptera caliptera 44 quietus 622 caloptera 44 rectangularis 620 Eripbus discoideus 192 recticollis 109, 611 622 ignicollis 193 rubricollis 115 601 suturalis 183 sanguinipennis 115 609 Erirhinus constrictus 176 scapularis 615 Eristalis trifasciatus 359 semivittatus 113 603 Eros canaliculatus 632 soleatus 612 coccinatus 633 sulcicoUis 602 humeralis 633 tenax 623 marginelluS 633 triangularis 110 628 modestus 633 unicolor 624 mundus 633 vemalis 607 obliquus 634 vespertinus 613 sculptilis 633 viridanus 603 Erotylus hispidus 348 viridipilis 600 4-punctatus 669 viridis 602 Erytlirseus mamillatus 16 Eimis cinctus 291 Evarthrus constrictus 94 4-notatus 292 heros 93 Eleodes 152, 656 sigillatus 469 Emathion atropos 626 unicolor 467 frontosus 625 Eucnemis amoenicornis 628 Embaphion muricatum 150 atropos 626 Emphytus platycerus 680 calceatus 626 recens 680 clypeatus 628 semicornis 680 cylindricoUis 627 tarsatus 679 frontosus 625 Empia cilipes 83 heterocerus 624 5-lineata 82 humeralis 628 scolopacea 83 muscidus 624 Encjclops cseruleus 336 obliquus 626 pallipes 336 quadricollis 624 Endomychus biguttatus 234 ruficornis 625 lineatus 347 triangularis 628 Engis confluens 125 unicolor 624 51 802 INDEX. Euderces pini 201 Peronia lucublanda 478 Eulophus basalis 721 maculifrons 93 dicladus 721 moesta 468 hircinus 722 morosa 470 Eumolpus barbatus 341 musculis 462 crypticus 215 muta 470 hirtus 341 nutans 476 pini 341 obesa 464 Sumorphus angulatus 347 oblongonotata 539 distinctus 347 obsoleta 481, 537 Euparia strigata 137 obscura 538 Eupogonius vestitus 332 ochropeza 478 Eurychora insequalis 655 8-punctata 476 Eurydactylus tomentosus 483 pallipes 465 Euryderus zabroides 544 parmata 474 Euryptychus keterocerus 624 permunda 540 Eurytoma orbiculata 720 placida 469 studiosa 721 punctiformis 481 Eurytrichus agilis 458 recta 481 terminatus 473 relicta 468 Eusattus reticulatus 148 rugicollis 468 Eustropbus tomentosus 305 scutellaris 94 Euschides opaca 151 sigillata 468 polita 151 stygica submarginata 467 470 Falciger acepbalus 173 superciliosa 92, 468 Falagria bilobata 590 tartarica 469 Feronia adoxa 472 terminata 473 angustata 463 tristis 472 atrimedea 466 ventralis 471 autiimnalis 473 vidua 469 basilaris 462 unicolor 467 caudicalis 480 Figit es impatiens 718 cbalcites 479 mellipes 718 cincticoUis 476 Flata bivittata 255 complanata 470 bullata 375 convexicollis 475, 537 conica 373 constricta 94, 540 humilis 376 coracina 539 nava 373 cupripennis 474 opaca 374 decens 477 pallida 374 decora 477 pruinosa 373 deparca 539 quinquelineata 375 errans 94 stigmata 255 extensicollis 478 Formica dislocata 733 fastidita 475 imparls 732 gregaria 472 lauta 731 heros 93 mellea 731 bonesta 475 sessilis 732 bypolithos 482 subsericea 734 impunctata 471 triangularis 733 impuncticollis 463 Formlcaleo gratus 413 interstitialis 480 obsoletus 413 limbata 473 Fornax calceatus 627 lineola 464 cylindricollis 628 longicornis 466 Fulg ora sulcipes 264 lucidula 482 luctuosa 480 Galerita americana 446 INDEX. 803 Galerita Janus 446 Gallenica attenuata 222 atripennis 224 atriventris 224 cava 668 circumdata 221 coryli 220 discoidea 221 decorata 223 dorsata 221 externa 222 lepida 667 longicornis 223 meraca 334 Olivieri 223 puncticollis 222 -i-maculata 223 rufosanguinea 343 tricincta 221 tuberculata 280 Gamasus antennsepes 17 juloides 18 musculus 17 nidularius 17 spinipes 17 Gambrinus armus 606 Gaurotes cyanipennis 200 Geophilus attenuatus 31 rubens 31 Geopinus incrassatus 544 Geotrupes excrement! 135 filicornis 136 Glycia purpurea 441 Glyptoscelis hirtus 341 Gomphus fraternus 393 stigmatus 394 Gonia frontosa 365 Gonyleptes ornatum 15 Gorytes phaleratus ^ 752 Gryllus sequalis * 237 bivittatus 237 nubilus 238 Gynacantha quadrifida 392 Gynandropus americanus 459 bylacis 459 Gyrinus americanus 519, 562 analis 520, 562 emarginatus 519 limbatus 520 obtusus 562 parous 562 vittatus 562 Gyrohypnus assimilis 568 consentaneus 568 Gyrophfena dissimilis 586 vinula ' 586 Halictus labrosQS 773 Halictus ligatus nigricornis parallelus purus radiatus Haliplus 12punctatus triopsis Harpalus ayilts agricola assimilis amputatus badius baltimorensis bicolor caenus caliginosus carbonarius compar dichrous erraticus faunus /minus herbivagus bylacis iricolor iripennis mexicanus nigripennis obscuripennis ochreatus opalinus paradoxus pensylvanicus rusticus similis terminatus viridis viridijeneus vulpeculus Hedychrum obsoletum speculum Hegeter punctatus Helodes/r