408 TEKTIARY INSECTS OF NORTH AMERICA. 



for the slight arcuation of the sides from the extreme base ; the apex fully 

 three-fourths as long as base, the front margin gently emarginate, the outer 

 angles hardly rounded ; surface punctate. Corium of hemelytra reaching 

 almost to the middle of the apical half of the abdomen, more or less obscure 

 and punctate ; abdomen uniformly dark fuscous, differing from the other 

 species in its relative narrowness, so that it is apparently not expanded 

 laterally beyond the margin of the hemelytra. 



Length, 6 mm ; breadth of thorax, 1.8 mm ; abdomen, 2.5 mm . 



Florissant. One specimen, No. 8927. 



20. EXITELUS gen. nov. (e'/r?Ac*). 



The body is long oval, more than twice as long as broad. Head a 

 little broader than long, as broad as the abruptly narrowed apex of the 

 thorax, but hardly half so broad as the base of the thorax ; eyes rather 

 small, situated in the middle of the head, the front between them strongly 

 and roundly produced, with no angulation ; antennae as long as head and 

 thorax together, the first joint barely surpassing the front, the last a little 

 incrassated and apparently the longest. Thorax trapezoidal, narrowing rap- 

 idly from base forward, abruptly at the very apex, not muoh more than halt' 

 as broad again as long, the sides a little convex. Fen.ora stout. Corium 

 of hemelytra extending beyond the middle of the abdomen, which, though 

 full, perhaps does not expand laterally beyond the closed hemelytra. 



A single species is known. 



EXITELUS EXSANGUIS. 



PI. 27, Fig. 2. 



Head and thorax fusco-fuliginous, the latter with a median snlcation, 

 both smooth, though the scutellum is faintly punctate ; front margin of the 

 thorax slightly emarginate. Corium of hemelytra reaching the middle of 

 the apical half of the abdomen, fuliginous with a central faint pallid spot, 

 faintly punctate; abdomen fusco-fuliginous with a premarginal, broad, 

 clearly denned, pale belt which traverses the abdomen in equal breadth 

 just beyond the scutellum. 



Length, 4.8.5"""; breadth of thorax, 1.9"""; abdomen, 2 mm . 



Florissant. One specimen, No. (iUTii;. 



