LAWSON: KANSAS CICADELLID.^. 259 



Form : Length, 3 mm. Vertex one-half longer on middle than next the 

 eye, one-half wider than long. Pronotum twice as wide as long, anterior 

 margin strongly convex, lateral margins moderately long and widening 

 posteriorly. Elytra long and narrow. 



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

 Vertex %^-ith two broad red lines which meet at the apex and then extend 

 back across the pronotum. Scutellum red except for yellow median line 

 on basal half. Elytra with oblique reddish or orange lines on clavus and 

 on disc, and with the basal portion of costal margin red. Face marked 

 irregularly with reddish which sometimes covers the front and the clypeus. 



Exteryial genitalia: Female, last ventral segment long, produced 

 posteriorly into a large obtuse median lobe, on either side of which the 

 margins are distinctly concave; pygofers robust, slightly exceeded by the 

 black-tipped oxapositor. Male, valve large, quadrate, posterior margin 

 slightly concave; plates broad basally, margins suddenly narrowed near 

 base and spiny at this point, apices upturned and acute. 



Internal male genitalia: Styles large, widest at point of attachment 

 to connective and just before upturned apex, between which it is slightly 

 narrowed, the terminal claw very characteristic, being large, curving, and 

 pointed mesad; connective V-shaped, its arms about of equal thickness 

 throughout; cedagus. when viewed laterally, with long anterior arm to 

 connective, a pair of delicate ventral processes, a stout but tapering me- 

 dian process and a large dorsal process of which the anterior two-thirds 

 projects cephalad. 



Distribution: Specimens are at hand from Cherokee, Doug- 

 las, and Pottawatomie counties. It probably occurs through- 

 out the eastern portion of the state. 



Hosts: Found very commonly on grape and hibernating in 

 leaves. 



Erythroneura obliqua var. iicevus (Gill.). 



Typhlocyba obliqua var. ttcevus Gill., Proc. U. S. Xatl. Mus.. xx, p. 757, 1898. 

 Typhlocyba ohliqiia var. noevus Tuck., Kans. Univ. Sci. Bui., iv, p. 68, 1907. 

 Typhlocyba obliqua var. navus DeL., Tenn. St. Bd. Ent., Bui. 17, p. 105, 1916. 

 Erythroneura obliqua var. naerus Van D.. Cat. Hemip. N. A., p. 715, 1917. 



Form: In size and structure like typical obliqiia. 



Color: Just like typical obliqua except that the scutellum has the 

 basal angles black or is entirely black, and the pronotum often has the 

 posterior margin darkened. 



External genitalia: As in typical obliqua. 



Internal male genitalia: Agree in every particular with typical 

 obliqua. 



Distribution: Specimens are at hand from Douglas and 

 Pottawatomie counties. 



Hosts: Usually taken on grapevines. 



