COLEOPTERA. 315 



tinct. The three first joints of the anterior tarsi of the males are 

 dilated. 



PoGONOPHORUs, Lat. Gyllen. — Leistus, Frosl. Clairv. — Carabus, Fab. 

 — Manticora, Panz. 



Remarkable for the elongation of the exterior palpi, those of the 

 labium being longer than the head, for the mandibles, the external 

 side of which forms a salient and flattened angle, and for the projecting 

 ligula terminated by three spines. The head is suddenly narrowed 

 behind the eyes, and the joints of the antennae are long and slender. 

 All the species known belong to Europe(l). 



Nebria, Lat. 



The Nebriae only differ from the Pogonophori in negative charac- 

 ters, or in the much greater shortness of the palpi; in the want of 

 dilatation in the external side of the mandibles, which merely forms 

 a very small auricle, not extending beyond the base of the jaws; and 

 in the absence of the strangulation, or neck, in the head. The an- 

 tennae are also proportionably thicker, and compose^ of shorter 

 joints(2). 



Alpjeus, Bon. 



Mere apterous Nebriae, somewhat more oblong, that especially 

 inhabit high mountains(3). 



Sometimes the body, arched or convex above, is nearly orbicular, 

 the thorax very short, transversal, strongly emarginate anteriorly, 

 and wider and lobulate posteriorly. The scutellum is not apparent. 

 The first joint alone of the two anterior tarsi of the males — and 

 sometimes that of the intermediate ones as in the O. melange — is sen- 

 sibly dilated. 



Omophron, Lat. — Scolytns, Fa,b. 

 This subgenus is composed of a small number of species found on 



(1) Carabus spinibarbis. Fab.; Leisius coerukus, Clairv. Entom. Helv., II, xxiii, 

 A, a; — C. spinilabris. Fab.; Leistrus rufescens, lb. B, b; — C. rufescens. Fab.; Cara- 

 bus terminatus, Panz., Faun. Insect. Germ., VII, ii. For the other species, see 

 Spec. Dej., II, p. 212, et seq. 



(2) Nebria arenaria, Lat. Gener. Crust, et Insect., I, 2, vii, 6; — Carabus brevi- 

 collis, Fab.; Panz. lb. XI, 8; Clairv. lb. XXII, B;—C. subulosus. Fab.; Clairv., 

 lb. A; Panz. lb. XXXI, 4;— C. picicornis. Fab.; Panz. lb. XCII, 1;—C.psam- 

 modes, Ross., Faun. Etrusc, Mant. 1, v, M. 



(3) The C. Helwigii, Panz". lb. LXXXIX, 4, is an Alpxus. See Spec. Dej. IT, 

 p. 221, et seq. 



