200 CLASS INSECTA. 



cylindrical, and thinner at the base ; the corresponding arti- 

 culation of the exterior maxillary is likewise nearly cylindri- 

 cal ; all these palpi are nearly of the same thickness through- 

 out, or sometimes thinner at the extremity. 



A first very natural subdivision, and which includes sea- 

 rites of Fabricius, except the preceding species, will be 

 composed of bipartite carabi, whose two anterior legs are 

 palmated, or at least digitated at the end ; that is to say, 

 terminated exteriorly by a long spine-like point opposed to 

 an internal strong spur. Their antennae are grained with the 

 second articulation, as long, and often longer than the fol- 

 lowing. The mandibles, those of a small number excepted, 

 are robust, prominent, angular, or toothed on the inner side. 

 The labrum is very short, transverse, and crustaceous. The 

 ligula is, in general, entirely corneous, beset with hair or 

 lashes, much emarginated, or widened at the top with the 

 lateral angles advanced. 



Some have the mandibles very strong, jutting out, and 

 commonly toothed ; the crustaceous labrum is much indented 

 on the fore-edge ; the tongue is short, not extending beyond 

 the chin, entirely corneous, or crustaceous, beset with hairs, 

 and widened at the upper edge. Their fore-legs are always 

 palmated. The species are generally large. 



One of these sub-genera, 



Pasimachus, Bon. 



Approximates to the last, with reference to the jaws, which 

 are straight, and without a terminal hook. 



The antennae are of equal size. The body is very flat, 

 oval, with tlie corslet heart-shaped, widely truncated behind, 

 almost as wide at its posterior edge as before, and as the base 

 of the elytra ; this edge is nearly straight, and simply a 



