SUBFAMILY II. — ASOPIN^E. 189 



V. Rhacognathus Fieber, 1861, 347. 



Broadly oval species of medium size having the head moder- 

 ately declivent, longer than broad, its apex rounded ; cheeks 

 very broad, conjointly concave, longer than tylus and con- 

 tiguous in front of it ; beak reaching middle coxse, second joint 

 slightly shorter than third and fourth united, these subequal ; 

 antenna? slender, reaching base of pronotum, joints 2 and 3 

 subequal, 4 one-third longer, 5 the longest ; pronotum with 

 front portion declivent, side margins straight, their front 

 halves finely crenulate, humeri obtusely angled, not promi- 

 nent ; scutellum relatively short, its apical half as wide as 

 elytra, tip broadly rounded ; apex of corium oblique, feebly 

 curved ; connexivum broadly exposed ; membrane very slightly 

 surpassing abdomen ; osteolar canal scarcely evident ; second 

 ventral and front femora unarmed ; tibiae flat above. Two 

 species are known, one inhabiting the whole of Europe, the 

 other some of the northern states and eastern Canada. 



133 (219). Rhacognathus americanus Stal, 1870, 33. 



Broadly oval, subdepressed above, convex beneath. Fuscous or dull 

 clay yellow; above and beneath densely marked with coarse, irregularly 

 placed black punctures; antenna? and head black; pronotum with edge 

 of side margins and numerous smooth, irregular wavy transverse lines on 

 both it and scutellum, dull yellow; membrane fuscous-black; connexivum 

 with a yellow spot or cross bar at middle of each segment; under sur- 

 face black with numerous scattered smooth irregular yellow mai'kings; 

 legs in great part black, the base of femora and a broad ring at middle 

 of tibia?, yellow. Structural characters as above given. Length, 9 — 11 

 mm. ; width, 5.5 — 6.5 mm. 



Hessville, Lake Co., Ind., June 7 {Gerhard). Loudonville, 

 Ohio, June 14 (0 shorn). Described from Illinois and, up to 

 the present, definitely recorded only from that State, Ohio, 

 Massachusetts, Minnesota, and Winnipeg, Manitoba. Gerhard 

 (Ms.) reports the taking, June 10, of a single female at Maca- 

 tawa Beach, Mich. Uhler once recorded it from Nebraska, but 

 the station and specimen are both unknown. Probably not 

 more than a dozen examples are known, and, except one from 

 Wellesley, Mass., all from the Great Lakes region of our ter- 

 ritory. 



VI. Euthyrhynchus Dallas, 1851, 104. 



Rather large, elongate-oval species having the head porrect, 

 nearly twice as long as wide, its apex subtruncate ; cheeks 



