INHABITING NORTH AMERICA. 19 



Species. 



1. P. depressus black, glal)i'ous ; thorax and elytra margined 

 with purple ; elytra perfectly smooth. 



Length eleven-tenths of an inch. 



Carabus depressus. Melsh Calal. 



Scariles depressus. — Tliorax subquadratc, black ; elytra glabrous. Fabr. Sy»t. 

 Eleul., p. 123. 



Scarites depressus. — Antennx black, obscure at tip ; head with two impressed 

 lines before ; thorax with a loiisitudiiial impresseil line ; borders sometimes 

 black-blue ; tarsi black-brown. O/iv. If/., .Vo. 36, p. 5, t. 2, /. 13. 



Bodif glabrous, l)lack. ini[)uncUirc(l. 



Head transverse qiialratf, witlj two indented longitudinal 



lines njore than lialfits l('ni»;th; anteiiniv black-i)rownisI) at 



tip, first joint black : lahnim unequal : tf/andihles as h)ng 



as the head, strongly dentate in the middle ; tooth in tlic 



left one double. 

 Thorax with an impressed line and two indentations near 



the base ; exterior margin purple ; excurvcd near the 



base. 

 Eli/tra glabrous, perfectly smootli ,• outer margin purple, 



with a line of elevated granules. 

 Tarsi l)lack-brown. 

 far. a. I. ess iliiuted ; margins blue; elytra smooth, with a 



slight appearance of hues ; sternum striated at tip. — From 



the Missouri. — Cabinet of Nuttall. 



This fine large insect is of frequent occurrence iri the 

 United States beneath old logs, stones, ^c, and is very pro- 

 bably the same as tlie ilepresaua of Cayenne: to which coun- 

 try authors have referred this species. 



2, P. *mhsitJcatus l)lack, glabrous ; thorax and elytra mar- 

 gined with blueish-purple ; elytra with olisolete lines. 



f.rn!rf/i four-fiftlis of an inch. 

 Bodi/ black, impunctured. 



2 



