HETEROPTEROUS HEMIPTERA. 343 



more than half the length of the second, and rather robust 

 hairy; second joint a little thicker at tip : thorax yellowish, 

 anterior margin, two dots, and a slight dot near the posterior 

 angles black; scutel yellowish, dusky on the middle of the base 

 and on the basal angles : hemelytra immaculate : feet with 

 minute pale points. 



Length to tip of hemelytra nearly one-fourth of an inch. 



Resembles insignis nob., but the second joint of the antenna; 

 of that species is not obviously thicker at tip ; the first joint i.s 

 naked, and much shorter than that of the present species, &c. 



14. C. circumcinctus. — Above black ; with a sanguineous 

 margin, thoracic line and scutel. 



Inhabits Indiana. 



Body black : head beneath excepting the trophi, sanguineous : 

 [788] thorax with the anterior and lateral narrow margins and 

 dorsal line acute before and gradually dilating behind, sanguine- 

 ous : scutel with a much dilated sanguineous line, broadest before 

 and gradually narrowing behind, occupying the greater portion of 

 the surface : hemelytra black with a sanguineous lateral margin, 

 extending as far as the membranous portion : pleura and pectus 

 sanguineous, with two black lines connecting the coxa) : feef 

 black ; venter sanguineous, a black line each side connected with 

 a large longitudinal spot behind the middle, extending to the tip 

 of the venter. 



Length one-fourth of an inch. 



Resembles C. medius nob., but may be distinguished by the 

 black thoracic vittse. 



15. C. confluentus [confluens]. — Above sanguineous ; 

 inner margin of the corium dusky; membrane black. 



Inhabits Missouri. 



Body sanguineous: head blackish on the disk, or with two 

 black lines confluent behind and before: thorax with a duskj 

 transverse line before the middle : corium a little dusky on the 

 inner margin; membrane black: scutel dark rufous or blackish: 

 pectus and postpectus varied with blackish: feet black: ventei 

 black at tip. 



Length about one-fourth of an inch. 



Several specimens were obtained by Nuttall in Missouri. Re- 

 sembles gonipliorus, but differs in many respects. 



