106 THE UNIVERSITY SCIENCE BULLETIN. 



males greatly exceed the abdomen, whereas in the short-winged males the 

 elytra are shorter than the abdomen. In any case the elytra are quite 

 broad. 



Color: The color varies from a light, brownish-gray to a dark ciner- 

 ous. Vertex and pronotum densely punctate with black. Vertex with 

 pair of black spots on posterior margin, a little further apart than the 

 ocelli. Pronotum often with series of anterior, submarginal dark spots. 

 Scutellum slightly punctate with fuscous, the basal angles dark. Elytra 

 very characteristically marked with fuscous, with impressed punctures 

 on either side of the nervures, and frequently having small fuscous spots 

 in the cells. Head, pronotum and scutellum sometimes lightly irrorate 

 with red. 



External genitalia : Female, last ventral segment longer than preced- 

 ing, posterior margin with a large excavation, reaching one-third of the 

 distance to the base, the base of which bears a distinct, obtusely-pointed 

 or rounded lobe; pygofers are broad and long, exceeding the ovipositor, 

 broadest at the middle, each bearing preapically a lateral, black, impressed 

 line. In the long-winged male the last ventral segment is somewhat 

 longer than the preceding one and the posterior margin is slightly con- 

 cave and elevated; plates are long and narrow, overlapping apically, 

 about equalling the ovipositors which bear a few stout hairs on apical half. 

 In the short-winged male, the plates seem to be further covered by a 

 relatively longer last ventral segment, so that they appear shorter. In 

 the specimens examined they were not found to overlap apically. 



Distribution: Taken in Grant and Pottawatomie counties. 

 Hosts: Williams records this species as common on Buffalo 

 grass in Kansas. 



Genus Xerophlcea Germ. 



The members of this genus differ from the other members of 

 the Gyponinse in having a much flatter head, with broad thin 

 margins. They also have the apices of the elytra perpendicu- 

 lar in position rather than in the more horizontal position 

 characteristic of the other genera. 



One of the two United States' species has been taken in the 



state. 



Xerophlfjea viridis (Fabr.). 



(PI. 10, figs. 5-6.) 



Cercopia viridis Fabr., Ent. Syst., iv, p. 50, 1794. 



Xerophhra grisea Germ,, Zeits. f. Knt., i, p. 190, 1839. 



XeropMfra virencens Stal, Of. Vet. Akad. Forh., xi, p. 253, 1854. 



X*rophl(ra viridia Stal, Hemip. Fabr., ii, p. 59, 1869. 



Parapholia pellata Uhl., Bui. U. S. Oeol. Geog. SurT., iii, 461, 1877. 



Xerophlwa peltala G. & B., Hemip. Colo., p. 82, 1895. 



Xerophlaa viridia O. & B., Proc. la. Acad. Sci., iv, p. 179, pi. 19, fijr. 1. 1897. 



Xerophlua viridia Osb., 20th Kept. N. Y. St. Ent., p. 512, 1905. 



Xerophlatt viridia DeL., Tenn. St. Bd. Ent., Bui. 17, p. 28, 1916, 



Xerophla-a viridia Van D., Cat. Hemip. N. A., p. 616, 1917. 



Xerophlira viridia Lathr., S. C. Agr. Eap. Sta., Bui. 199, p. 40, 1919. 



