18 DESCRIPTION OF INSECTS 



Species. 



S. subterraneus black, immaculate ; head bisulcate before : 

 elytra striated ; feet, second pair, with two permanent 

 spines on the tibia. 



Length about nine-tenths of an inch. 



Black ; anterior feet digitated ; head sulcated before ; elytra striated ; stria 

 smooth. Fabr. Syst. Eleut. I., p. 124. 



Carabus interruptus. Fuess. Arch. 161, /. 29, /. 4. 



Black ; head with two longitudinal impressions ; elytra striated. Oliv. III., 

 p. 8, pi. 1, Jig. 10. 



Head with two indented parallel lines before, half the length 

 of the head; majidibles profoundly canaliculate above, 

 teeth above striated ; antennce attaining the base of the 

 anterior feet, ferruginous, darker at base ; labium subca- 

 rinate on the middle, with a double impression at base ; 

 giila with an impressed line which is furcate before. 



Trunk somewliat scabrous each side beneath ; thorax^ a lon- 

 gitudinal impressed line and a transverse anterior one ; 

 posterior edge emarginate ; feet, second pair, armed with 

 two permanent prominent spines, on the outer edge be- 

 low the middle, of which the inferior one is larger ; ehftra 

 distinctly and rather strongly striated : strife impunctured ; 

 margin scabrous ; epipleura glabrous ; humerus carinated 

 before, carina terminating abruptly in an angle. 



Very common in almost every part of North America. 



Genus Pasimaciius. Bonell. Latr. 



Anterior tibia emarginate and crenate ; elytra entire ; anten- 

 nse short, third and fourth joints not moniliform ; labrum 

 dentated ; mandililes strongly dentate ; palpi filiform ; 

 tongue dilated, very short, and emarginate ; thorax sub- 

 cordate, truncate behind ; body dilated, depressed. 



