TllK CANADIAN ENTOMOLOGIST. 341 



Described from one female and one male from Ames, Iowa. Readily 

 separated from any of the species with angled vertices by the genitalia. 



Ckoloroteitix stohita, n. sp. — Form and general appearance o{ lusoria 

 slightly narrower and without the mark on the vertex. Length 7-8 mm.; 

 width 1.5 mm. Male slightly smaller. 



Vertex nearly flat on disc, rounding anteriorly, one third longer on 

 middle than against eye, twice wider than long, front convex line between 

 vertex and front distinct, ocelli prominent, transparent, distant from eyes ': 

 elytra long and very narrow, venation as in lusoria, indistinct. 



Colour : vertex pale yellow, sometimes with a greenish cast,pronotum 

 olive, the disc with a fulvous cast; elytra hyaline green, with an iridescent 

 fulvous tinge. 



Genitalia : ultimate ventral segment of the female very long, truncate 

 posteriorly or very slightly emarginate, the centre with a brown mark ; 

 male valve as long as the last ventral segment, the apex rounding, the 

 margin notched at the middle, plates rather narrow at base, rapidly 

 roundingly narrowing to before the middle, then extending as long 

 attenuate finger-like points. 



Described from three females and one male from Cimmaron, Col. 

 Taken in a mountain valley. The genitalia of both male and female are 

 very much like those of unicolor, while in shape of head and general 

 appearance it is closely allied to liisoria and Titidaia. 



Lonaticra ?iebuIosa, n. sp. — Form and size oisalsura nearly, resembles 

 nodivaga, but with shorter ovipositor and longer elytra. Length, $3.5 

 mm., ^ 3 mm. ; width 1.25 mm. 



Brachypterous form : vertex slightly convex, one-fourth wider than 

 long, nearly twice longer on middle than against eye, not quite so long as 

 the pronotum ; front longer and narrower than in nodivaga, resembling 

 niegalopa ; elytra covering all but two segments of abdomen, evenly 

 rounding behind; venation rather weak, not reticulate. 



Colour : vertex dirty straw, a pair of large angular black spots back 

 of the point of the vertex, connected outwardly with a pair of slightly 

 smaller round ones just inside the ocelli ; back of these is an interrupted 

 transverse brown band, a brownish fuscous spot against each eye, inside 

 of which is an oblique, olive dash : pronotum pale olive and straw, with 

 a pair of brown spots on the anterior margin equidistant from the median 

 line and the eye, elytra subhyaline, the veins on the inner half milky- 



