344 HETEROPTEROUS HEMIPTERA. 



16. C submarginatus. — Black ; disc fulvous, hemelytra with 

 whitish vittae. 



Inhabits United States. 



Body oblong, blackish; not distinctly punctured; head dull 

 fulvous, disc black : antennas black; first joint hardly one-third 

 the length of the second; second joint cylindric : thorax black; 

 disk dull fulvous : hemelytra with a broad submarginal whitish 

 vitta, originating at the humerus and curving outwards at tip : 

 beneath dull fulvous : feet dull fulvous. 



Length one-fifth of an inch. 



I obtained one specimen in Missouri and another in Indiana. 



17. C. geminus. — Black; a yellowish spot at tip of the 

 corium. 



Inhabits Indiana. [ 789 ] 



Body black; punctures distinct: antennae, basal joint white; 



remaining joints : hemelytra at tip of the corium with a 



large whitish yellow spot ; rostrum white : feet entirely greenish- 

 white. 



Length nearly one-fourth of an inch. 



The contrast between the hemelytral spot and the general 

 color, gives it a little the appearance of C. gothicus F., but it 

 cannot be confounded with that insect. 



18. C. stygicus. — Black; tibiae and tarsi whitish. 

 Inhabits Indiana. 



Body deep black, polished ; minutely punctured or somewhat 

 rugulose : antennas, first joint less than half the length of the 

 second: second joint very slightly larger at tip; third joint 

 three-fourths the length of the second ; incisure between the 

 first and second joints whitish : feet with the trochanters, knees, 

 tarsi, excepting at tip, and tibiae, excepting the base of the pos- 

 terior pair, white. 



Length over three-twentieths of an inch. 



13. C. eusiformis. — Blackish, with three yellowish vittae; an- 

 tennae, second joint fusiform. 



Inhabits United States. 



Body rather slender, blackish ; antennas, first joint rufous, 

 cylindric; second joint robust, fusiform, more slender at base ; 

 third joint with a white base : thorax, anterior edge white : scu- 



