LAWSON: KANSAS CICADELLID^. 



121 



Parabolic ratiis riVWiV Osb., 20th Rept. N. Y. St. Ent., p. 515, 1905. 

 Parabolocratus viridis Gibs., U. S. Dept. Agr., Div. Ent., Bui. 108, p. 68, fig. 8, 1912. 

 Parabolocratus viridis DeL., Tenn. St. Bd. Ent., Bui. 17, p. 37. 1916. 

 Parabolocratus virUlis Van D., Cat. Hemip. N. A., p. 625, 1917. 



Form: The largest of the members of this genus. Length, females, 6 

 to 8.25 mm.; males, 5 to 6 mm. Vertex of female broadly rounding, thin- 

 margined, two-thirds as long as width between eyes. Vertex of male 

 distinctly angular, thin-margined, about two-thirds as wide as long. 

 Pronotum over twice as broad as long, lateral margins long and parallel, 

 humeral margins distinct, posterior margin emarginate. Scutellum large 

 and broad. Elytra of female either short and broad, exposing last two 

 segments of abdomen, or long and narrower, just showing ovipositor, 

 apically broadly rounded. Elytra of male long and narrow, exceeding 

 abdomen. 



Color: Yellowish-green, with nervures of elytra a bright green. 

 Vertex of male often with black line under margin. 



External geyiitalia : Female, last vential segment longer than preced- 

 ing, lateral margins parallel, posterior margin rounded, with sometimes 

 a wide but very short lobe on median third; pygofers tapering acutely, 

 exceeded by ovipositor. Male, last ventral segment longer than preced- 

 ing, widest posteriorly; valve small and triangular; plates wide basally, 

 tapering suddenly at basal third and then evenly to long acute tips, median 

 half of lateral margins with coarse spines; i^ygofers broad, separated 

 ventrally at the apices, exceeding the plates and covered with spines. 



Distribution: Found throughout the northern and eastern 

 portions of the state as shown by the following map : 



Hosts: A grass feeder, 

 grasses on low land. 



Taken by the writer on coarse 



