HETEROPTEROUS HEMIPTERA. 337 



3. S. uliginosa. — Blackish, corium brown, margin whitish : 

 feet yellowish. 



Inhabits United States. 



Body blackish, punctured : head with an oblique impressed line 

 before the middle, and a yellow exterior edge : hemelytra whitish ; 

 inner portion of the corium fuliginous ; sexual carina or ovi- 

 positor yellowish : rostrum and feet yellowish ; posterior thighs 

 dusky at tip. 



Length to tip of hemelytra over one-tenth of an inch. 



Resembles the preceding, but may be distinguished by its 

 darker color. It is less common. 



MYODOCHA Latr. 



M. opetilata. — Blackish ; feet white at base. 



Inhabits United States. 



Body piceous-black, deeply punctured : head black, impune- 

 tured, polished ; neck elongated ; antennae yellowish ; first joint 

 black, at tip yellowish ; ultimate joint and apex of the pre- 

 ceding [ 782 ] one fuscous ; thorax constricted in the middle ; an- 

 terior portion impunctured : hemelytra piceous ; lateral narrow 

 margin yellowish, expanding behind into a small dot; membrane 

 fuliginous with the nervures whitish; rostrum yellowish, first 

 joint piceous: feet yellowish; anterior thighs dilated, with a 

 few spines beneath beyond the middle, and with a piceous an- 

 nulus near the tip. 



Length over seven-twentieths of an inch. 



This insect is not [un] common in many parts of the Union. 



ASTEMMA Latr. 



A. MAVORTIA. — Thorax cylindrical constricted before the 

 basal margin. 



Inhabits United States. 



Body black: antennae honey-yellow: thorax, cylindrical, nar- 

 rowed before to the width of the head, constricted on the basal 

 submargin ; base hardly wider than the middle : hemelytra punc- 

 tured, piceous, a little shorter than the abdomen : wings imper- 

 fect: tergum rufous ; margin and tip black : feet honey-yellow : 

 anterior thighs dilated, with six or seven equal, equidistant 

 spines : anterior coxae with a short spine. 



22 



