186 long's second expedition. 



and thorax formed as in the preceding species [281] excepting that 

 the anterior angles of the thorax are subacute; striae of the elytra 

 as in the preceding; feet as in the preceding, excepting that the 

 antorior tibiae are gradually very much dilated at tip, and not 

 somewhat abruptly dilated near the tip, the line of the exterior 

 edge is therefore nearly rectilinear. 



Length from one-fifth to less than one-fourth of an inch. 



Var. a. thorax dull piceous. 



Var. /?. entirely piceous. 



EPITRAGUS Latr. 



E. canaliculatus. — Thorax with two lines and lateral edge 

 elevated. 



Inhabits United States. 



$ • Body blackish-brown, more or less bronzed, with ver}- 

 numerous short cinereous hairs ; thorax broader behind, some- 

 what lobed at the scutel ; angles produced, very acute ; lateral 

 edge rectilinear, elevated ; anterior edge abruptly undulated ; 

 disk with two elevated lines which become obsolete behind and 

 originate each in a flattened and porrect tubercle on the anterior 

 edge ; elytra with dilated, slightly impressed grooves. 



Length nine-twentieths of an inch. 



Var. a. grooves of the elytra obsolete. 



The female is very different in appearance from the male, by 

 being entirely destitute of the elevated lines and edges of the 

 thorax, and of the undulated form of the anterior edge of the 

 thorax. The elevated lines and lateral edge give the thorax the 

 appearance of having three dilated grooves. This insect is found 

 in Pennsylvania, but is more frequent in the Southern States ; I 

 also obtained specimens in Missouri. 



[282] EUSTROPHUS Latr. 



E. bifasciatus. — Dark reddish-brown, sericeous ; elytra black 

 bifaseiate with rufous. 



Inhabits United States. 



Palpi terminating with a large obconic joint, truncated ; tho- 

 rax sometimes blackish, nearly semicircular, somewhat truncated 

 before ; posterior angles rather less than a right angle ; scutel 

 transverse, very obtusely rounded behind; elytra with a rufous 



