206 



THE UNIVERSITY SCIENCE BULLETIN. 



Form: Large, somewhat elongate. Length, 8 to 9 mm. Head slightly 

 wider than pronotum ; vertex one-fourth to one-half longer on middle than 

 next the eye, two and one-half times as wide as long, disc depressed, 

 margin acute, apex rounded to obtusely angulate. Pronotum transverse, 

 over twice as wide as long, anterior margin broadly rounding, humeral 

 margins a little longer than the lateral, posterior margin emarginate, 

 disc distinctly wrinkled. Elytra moderately long, broad, slightly over- 

 lapping apically and slightly flaring. 



Color: Vertex, pronotum, and scutellum yellowish, elytra whitish 

 fulvous. Vertex and pronotum irrorate with light brown, latter darker 

 on the disc. Scutellum pale with two dark marginal spots. Elytra 

 rather evenly and closely inscribed with light to dark brown. Face 

 yellowish, irrorate with brown. 



External genitalia: Female, last ventral segment about three times 

 as long as preceding, narrowed posteriorly to rounded, moderately pro- 

 duced, lateral angles, between which the posterior margin is emarginate 

 and with a small median notch; py gofers moderately robust, exceeded by 

 ovipositor, sparsely spined on distal half. Male, valve broad and tri- 

 angular, nearly as long as last ventral segment, obtusely angulated 

 apically; plates large, broad basally, three times as long as valve, margins 

 with submarginal spines nearly to the obtuse diverging tips which greatly 

 exceed the short and broad pygofers. 



Distribution: Found chiefly in western Kansas as shown by 

 the following map : 



Hosts: Osborn & Ball record this species from Panicum vir- 

 gatum. 



Phlepsius soUdaginis (Walk.). 



Acocephalus solidaginis Walk., List Homop., iii, p. 847, 1851. 

 Phlepsius humidus Van D., Trans. Am. Ent. Soc, xix, p. 76, 1892. 

 Phlepsius humidus Osb., 20th Rept. N. Y. St. Ent., p. 532, 1905. 

 Phlep^ins solidaginis Van D., Can. Ent., xli, p. 384, 1909. 

 Phlepsius humidus Osb., Me. Agr. Exp. Sta., Bui. 238, p. 143, 1915. 

 Phlepsius humidus DeL., Teim. St. Bd. Ent., Bui. 17, p. 74, 1916. 

 Phlepsius solidagivis Van D., Cat. Heniip. N. A., p. 674, 1917. 



