LAWSON: KANSAS CICADELLHL-E. 



183 



Form: Much like seminudus. Length, 4.5 to 5.25 mm. Vertex one- 

 fourth longer on middle than next the eye, two and one-half times as 

 wide as long, with a faint transverse depression, and broadly rounded 

 apically. Pronotum over twice as wide as long, lateral margins rather 

 short. Elytra moderately long. 



Color: Vertex, pronotum and scutellum varying from yellowish ir- 

 rorate with brown, to reddish-brown. Elytra usually milky-white with 

 bands of brown at base, and across apical half of clavus. Frequently 

 these bands are so run together as to give the entire elytra a brownish 

 appearance. Face the color of the vertex. 



External genitalia: Female, last ventral segment long, lateral angle 

 broadly rounding, posterior margin notched on either side of a small 

 median notched lobe which gives the appearance of two median teeth; 

 pygofers broad, nearly or quite equalling the ovipositor, sparsely spined. 

 Male, valve broad, rounded posteriorly; plates broad basally then rapidly 

 narrowed, ending in elongate filamentous tips which exceed the pygofers. 



Internal male genitalia: Styles large, triangular, broad basally, termi- 

 nal process slightly convex on mesal margin, posteriorly straight on outer 

 margin; connective very stout, Y-shaped, arms about equalling the 

 basally broadened stem; oedagus with a wide, dorsal process to anal tube 

 membrane, terminal portion composed of a broad median strap-like and 

 terminally bifid process and a pair of lateral narrower and acutely pointed 

 processes. 



Distribution: Seemingly our most widely distributed mem- 

 ber of the genus, as shown by the following map : 



Hosts: This is the species producing the purple spots on 

 Chenopodium. De Long reports taking specimens from wild 

 rose. 



