OCR Text |
Show 290 INSECTA. glossre; the exterio1· palpi are terminated by an oval joint, acum(. 11ated at the extremity. They are small, frequent humid places, and are not strangers in northern countries. CLIVINA, Lat. Three stout teeth on the external side of the two anterior tibire, and one on that of the next two(l ). DYSOHIRIUS, Bon.-Clivina, Dej. Nothing but dentations or very indistinct and small spines on the t•xtel'nal side of the two antedor tibire, and where the extremity of this side is usually extended into a long point in the form of a spine, and opposed to another consisting of a stout spur on the in· ter·nal side. The last joint of the labial palpi is thicker in proportion than that of the Clivinre, and almost clavato-securiform. The thorax is usually globular(2). Our second and last subdivision of the Bipartiti will comprise those whose anterio1· tibire are neither dentated externally, nor bidigitated at the extremity, and where the second joint of the antennz is evidently shorter than the third. They closely approximate to the two last suhgenera in the organs ofmanducation, and have been confounded by some authors with the Scarites, which, in fact, they vet·y much resemble, both in appearance and habits. Some have a narrow elongated body, almost forming a parallelo· piped, with a nearly square thorax; the antennre either entirely or plntly granose; the last joint of the exterior palpi almost cylin· drical, and the same of those of the labium, nearly in the form of a reversed cone, or securiform. They are all exotic. MoRxo, Lat. Antennrc equal in size throughout; labrum pt·ofoundly emarginate; exterior palpi filiform; thighs oval, with triang-ular tibire(3). OzJENA, Oliv. Antennre thicket• or inflated at their extremity; labrum entire; ( 1) Tenebrio fossor, L.; Scarite8 are:narius, Fa b.; Clairv. En tom. Helv., ll, viil, A, a. The Clivina: of Count Dejean, Spec. 1, p. 411, l-7. (2) Clivina:, 8-21, of Count Dejean; but the eighth, or the arctica, seems to p1·csent the characters of a Cephalotus. . . ~3} Harpalus monilicornis, Lat. Gener. Crust. etlnsect. I, p. 206; MoriofTI(Jtllli· cornis, l>ej. Spec. I, p. 430; Scarites Georgire, Palis. de Beauv., VII, xv, 5;Morio brasiliensis, Dej. lb.;-Morio orienta/is, I d., lb. COLEOPTERA. 291 • 1 • terminating by a larger and almost securiform or trian-labJal P8 · · ptl• thighs and t1• b1• re narrow an d e Io ngate d( 1) • gular JOihn ' 9 The have an oval or oblong body, and the thorax either ot er · th'e shape of a cup or heart, or almost orbicular; the an-nearly 10 • f 1' d . 1 . . h l filiform and constst mostly o cy m r1ca JOmts, t e ast tenn:£ are ' , · r f . 1 1 • the others narrowed at base and nearly m the 1orm o PartJCU ar Y, • • . a reverse d c one'· the last jo. int of th. e exter1or palpt 1s almost oval or fusiform. The labrum lS emargmated. 1' . f h t They are peculiar to the h~t and sa.n y c 1stncts o · t e wes ern countries of the eastern contment. DtTOMUS, Bon.-Carabus, Calosoma, Scnurua, Fab. Palpi shorter than the head; thorax cordiform, or like a cup; tarsi short. . Some species, those to which Ziegler has rest01·ed the gener1~ ap- pe 11 au•o n of Ditomus ' have a more elongated body of equal •w 1dth; the head separated from each side of th~ thorax by a re-entermg an- I d usually armed, in the males, with one or two horns(2). g e, an .11 • z· h The othet·s, or those which compose the genus nstus,. teg., ~ve the body shorter, and wider before; the head.almost c~ntmuous with the thorax, anrl buried in it up to the eyes; Its antet·tor angles are pointed( 3 ). APo~o~ms, Hoff.-Scarites, Ross. The anterior palpi very long; thorax orbicular; tarsi filiform and elongated; exterior maxillary palpi much longer than :h.e head, and terminated by an ovoido-cylindrical joint; the same JO~nt of those of the labium elongated and fusiform. I have not percet ved a tooth in the emargination of the mentum( 4). 3. Our third section of the Carabici, that of the QuADRIMA:sx,- (1) Ozrena dentipe8, Oliv., Encyclop. Method.;-Ozama Rogerii, Dej., Spec. P· 434;-0zama brunnea, I d., lb. ;-Ozama Gyllhenalii, Id. lb. . (2) Dejean, Spec. I, p. 439, first division of Ditomus. The Oarabua calydomm of Fabricius, accot·ding to a label affixed by him to a specimen taken fro~ the collection of M. Desfontaines, forms a species very distinct from the Ditom~ calydonius of Dejean. The mandibles of the male are forked or d~vided as It were into two horns; the middle horn terminates in a point or rather 1s hastate at the extremity. The Oalosoma longicornis of Fabricius is probably the female of this species or of anothe1• that is closely allied to it. (3) Second division of Ditomus of Count Dejean, lb., P· 444·. • ,.. (4) Sc art' t esruf ua, Ol't v., C o1. lll , J·' 6, 11 , 13 , a• b·' Hossi, .Faun. Etrusc. I, n·, "'i .8potomU8 rufus, Dej., Spec. I, p. 450;-.9.potomua te8taceua, Id., lb ., P· 451. |