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Show 282 lN5ECTA. the tarsi are dentated beneath in the manner of a comb, and com. mcnce with such as have their oval or ovoid head separated from the thorax by a sudden and marked strangulation forming a sort or knot or patella. The penultimate joint of their tarsi is always di. vided down to its base into two lobes; the preceding ones at·e broad and in the form of a heart or reversed triangle. The first joint of the antennce is but s~ightly elongated. All the species known belong to the western world. CTENODAOTYLA, Dej. Exterior palpi filiform, the last joint oval; body but slightly elon. gated and flattened; thot·ax almost cordiform, elongated, and trun. catcd posteriorly( 1 ). AGRA,Fab. Exterior maxillary palpi filiform; labial palpi terminated by a large triangular or securiform joint; the body long and narrow; tho· rax forming an elongated cone narrowed anteriorly. The mentum is suborbicular with a tooth in the middle of the emargination; the ligula nearly cylindrical, without very distinct paraglossc:e(2). Now the head is separated from the thorax by a very abrupt stran· gulation, in the form of a knot or patella(3). The joints of the tarsi arc entire in several, and the first are rarely dilated. The body is always flattened. The paraglossre are never salient, simply forming a membranous margin, rounded or obtuse at the end. Here the thorax is isometric, or longer than it is wide, cordiform, and truncated posteriorly. The body is elongated. Such are CYMINDIS, Lat.-Cymindis, Jlnomreus, Fisch.-Tarus, Clairv.-Ca· rabus, Fab. Exterior maxillary palpi filiform, or hardly thicker at the extre· mity, with the last joint cylindrical; the same of the labials, larger, almost securiform, or like a reversed triangle, at least in the males; the head not narrowed posteriorly; all the joints of the tarsi entire and nearly cylindrical( 4). ( 1) Cterwdactyla Chevrolutii, Dej. Spec. I, p. 227. [The only species known, and type ofthc genus. From Cayenne. .O.m. Ed.] (2) See Kliig's excellent Monogt·aph of this genus: also the Hist. Nat. Col d'Eur., and the Spec, des Coleop., Dej., 1. All the species belong to intratropical America. (3) Somewhat narrowed posteriorly in Demetrias and Dromius, but not fixed to the thorax by a patella. ( 4) See Hi st. Nat. Col. d'Eur., fuscic. II, and III, and Spec. Gen. des Coleop.J. COLf-:GPTERA. 283 CALLEIDA, Dej. Entirely similar to Cymindis, with the exception of the tat·si, the penultimate joint .of which is bifid; in the preceding it is triangular. Peculiar to America( 1 ). DEMETRIAs, Bon. Analogous to Calleida in the tarsi, but having an oval head narrowed posteriol'ly, and all the exterior palpi nearly filiform, with the last joint ,almost ovoid or subcylindrical. This subgenus, as well as the next, is composed of very small species, which usually frequent wet places. They are, nearly all, European(2 ). DaoMIAs, Bon. Genet·ally apterous; joints of the tarsi entire; otherwise similar to Demetrias(3). There, the thorax is evidently wider than it is long, forms the segment of a circle, or resembles a heart, widely and transversely truncated posteriori y. In some, the middle of the posterior margin of the thorax is extended backwards. Such is LEBIA, Lat.-Lebia Lamprirts, Bon. Exterior palpi terminating in a little larger and nearly cylindrical or oval joint truncated at the end; four first joints of the tarsi almost triangular, and the fourth more or less bifid or bilobate. One of the most common in Europe is L. cyanocephala; Carabus cyanocephalus, L., Fa b.; Bupreste bleu a corselet rouge, Geoff.; Panz., Faun. Insect. Germ., LXXV, 5; Hist. Nat. des Coleop. d'Eur., fascic. III, xii, 7. From two to two lines and a half long; blue or green and very lucent above; first joint of the antennce, the feet and thorax, fulvousred; extremity of the femur black; elytra marked with slight punctated strice. L. lu:emorrhoidalis; Carabus hmmorrhoidalis, Fab.; Hist. Nat. des Coleop. d'Eur., fascic. III, xiii, 8. Not above two lines in (1) See op. cit. Of American species, add the marginata, deCQra, rubricollis and 1maragdina. Jm.Ed. (2) Idem. (3) Idem. |
