ORDER COLEOPTERA. 215 



well marked, continuous, and extending as far as the 

 suture. 



Sometimes the corslet is almost square, or in the form of 

 a truncated heart, with the posterior angles acute. 



Those whose body is in a long or cylindrical square, with 

 the corslet almost square, and but little narrower behind than 

 before, form the genus Cophosus of M. M. Ziegler and 

 Dejean. It has been established on one species ( Cylindricus ) 

 of Austria. 



We will join to this the Omaseus 7nelanarius of M. le 

 Comte Dejean, as well as another species of Germany, inter- 

 mediate between the preceding and the Cophosus Cylinch'icus, 

 and which is, I believe, the Omaseus elongatus of M. Ziegler. 



Those whose body is generally oval, depressed, or but 

 little convex above, with the corslet large, almost square and 

 subisometric, always strongly edged laterally, as broad, or 

 almost as broad at its posterior edge, as at the base of the 

 elytra, compose the genus Abax of M. Bonelli. 



Germany furnishes many species of them. That which 

 has been named Metallicus and the Molops striolatus of 

 M. le Comte Dejean, which have the antennas composed of 

 shorter articulations, or which are almost grained, seem 

 proper to form a new genus, that of Cheporus. 



N.B. The platysma, described and figured by M. 

 Fischer, (Entom. de Russie, II. xx. 4, and 5,) are proba- 

 bly analogous to the above. 



We find very often in the cold or humid parts of the 

 forests of ovir environs. {Carabus striola. Fabri. Carahus 

 depressus. Oliv. col. III. 35, IV. 46.) 



Sometimes the corslet, always terminated posteriorly by 

 two well marked angles, or acute ones, is sensibly narrowed 

 behind. lis section approaches more or less to that of a trun- 

 cated heart. 



Among these species many have the body depressed or 



