134 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



Color: head, pronotum, elytra, tergum, and touches on under sur- 

 face and legs, cinnamon brown. The lower part of the face inclines 

 to yellowish and the pronotum and scutellum have irrorations of this 

 color, while the propleura, margins of tergum, the venter and femora 

 are yellow or light stramineous. 



Genitalia: Last ventral segment of female scarcely longer than 

 preceding, pygofers broad, rugose or gibbous posteriorly, exceeded by 

 the ovipositor. Male valve short, obtusely rounded behind ; plates 

 narrow, finely ciliate. 



Described from one female and one male collected by Prof. C. H. 

 T. Townsend, Jicaltepec, Vera Cruz, Mexico, June, 1896. 



This species is marked by the large size, tumid front and lorse, and, 

 for the specimens in hand, by the distinct cinnamon brown color. 



Idiocerus suturalis Fitch. 



Idiocerus suturalis Fitch. Homop., N. Y. State Cab., p. 59, 185 1. 



Bythoscopus suturalis Walk. Homop., IV., p. 1162, 1852. 



Idiocerus suturalis \'an Duzee. Canada Ent., XXL, p. 8 ; Psyche, V., p. 

 388 ; Cat., 261 ; Gillette & Baker, Hemip., Colo., p. 80. 



Pale yellowish, a dark brown stripe along the suture, elytral nervures 

 indistinct. Length, $ 5.75 mm; cf, 5 mm.; width, 1.50 mm. 



Face rather long, genae nearly straight-margined below; clypeus 

 much expanded just before apex which extends below the gense. Face 

 and all beneath yellowish. Elytra yellowish hyaline, the apex dusky, 

 sutural margins broadly marked with brown, sometimes interrupted by 

 a white crescent, often continuing on to the scutellum and the poste- 

 rior part of the pronotal disc, outer anteapical cell broad, triangular, 

 the nervure curving away to the margin. Ultimate ventral segment 

 of the female about three times wider than long, posterior margin with 

 a roundingly produced median lobe ; male antennal disc elongate. 



Specimens are at hand from New York and Colorado. Mr. Van 

 Duzee has records of its occurrence for Ag. Coll, Mich. (G. C. Davis), 

 Douglass Co., Kas. (F. H. Snow), Mt. Washington (Mrs. Slosson), 

 Winnipeg (Jas. Fletcher). 



This is a somewhat variable species. Those with the darker inter- 

 rupted stripe are mostly males, though occasionally a female is found. 



Van Duzee reports it from willow, poplar and birch. 



