554} CLASS INSECTA. 



the two fore-legs are broader, and strongly indented on the 

 outside. The corslet is dilated before, like a heart, broadly 

 truncated. 



GoNOPUs, Lat. 



The third articulation of the antennae is elongated and 

 cylindrical, as well as the two or three following ; those which 

 come after are granulated, the last is ovoid or a little longer 

 than the foregoing. The anterior edge of the head is con- 

 cave, and the mentum in a transverse square. The inner side 

 of the thighs is trenchant, with a furrow ; the two anterior 

 have a tooth, the four "hind legs are straight, arched with 

 some indentations ; the tarsi are glabrous. {Blaps tibialis, 

 Fab.) 



The other insects of this tribe, and with feet alike in both 

 sexes, differ from the preceding by their mentum, which 

 occupies transversely the greater part of the under side of 

 the head, and has the shape of a heart truncated at its base. 

 The corslet is always transversal, emarginated or concave in 

 front, and arched laterally, whether trapezoid, and larger 

 behind, or much dilated laterally, and narrowed toward the 

 posterior angles. The labrum is emarginated. Most of 

 them are ash-coloured, and live in the ground, in sandy 

 places. 



Sometimes the corslet is enlarged in front, near the middle 

 of its side, and narrowed behind. The base of the jaws is 

 exposed. 



Heteroscelis, Lat., 



Present, at the external side of the first four legs, two strong 

 teeth, one at the middle, the other terminal. The posterior 

 extremity of the presternum is prolonged in the manner of a 

 flatted lamina, and received into an emargination of the me- 

 sosternum. The body is oval, rounded at the two ends, with 



