THE CANADIAN ENTOMOLOGIST. 



with the milk-white nervures margined with fuscous dots. Upper half of 

 the face fuscous. 



Genitalia : ultimate ventral segment of the female as long as the 

 penultimate, the posterior margin roundingly emarginate, with a broad 

 blunt tooth. Male, valve triangular, plates triangular, the margins 

 slightly concave, fringed with stout spines ; plates about three times the 

 length of the valve. 



Described from numerous specimens from Rocky Ford, Colo. This 

 species is apparently intermediate in structure between this genus and 

 Parabolocratus. The females are all brachypterous and have the elon- 

 gate head of a ffecalus, while the males are long-winged and have the short 

 vertex of Parabolocratus. 



Athysanus symphoricarp^e, n. sp. 



Form and size of instabilis, lighter coloured, resembling strialnlus, 

 but larger and lighter testaceous. Length, 4.5 mm.; width, 1 mm. 



Vertex twice wider than long, half longer at apex than against eye, 

 rounding to the broad almost parallel margined front, clypeus much 

 narrower than apex of front, parallel margined. Elytra stout, longer than 

 body as in instabilis, the central anteapical cell long, narrowed in the 

 middle, more than half its length beyond the apex of clavus. 



Colour : vertex and face yellowish testaceous, lines on front and 

 irrorations on vertex fusco-testaceous. Pronotum and scutellum paler, 

 with a slightly olive tinge. Elytra pale brownish or olive testaceous, 

 subhyaline, the nervures light. Legs and all below pale orange 

 testaceous. 



Genitalia : ultimate ventral segment of the female little longer than 

 the penultimate, the lateral margins narrowing, the lateral angles a little 

 produced, triangular, between these the posterior margin is slightly 

 rounding, shining black. One specimen has an acutely angular notch 

 either side the middle, one-third the distance to the margin, leaving a 

 broad central tooth ; one has only one notch ; and two, probably not 

 having copulated, have none. 



Described fiom four females from Ridge way, Colo. 



Athysanus varus, n. sp. 

 Form and colour oi alp inns and extrusns, but with a narrower body 

 and longer elytra. Male darker, resembling plntonins female. Length, 

 2 5 mm., £ 4.25 mm. Width, $ 1.5 mm., $ a little over 1 mm. 



