LAWSON: KANSAS CICADELLID^. 211 



Distribution: Labette and Cherokee counties are the only 

 ones in which this species has yet been taken. 



Hosts: De Long reports taking this species from oak shrubs. 



Thamnotettix cUtellarius (Say). 



(PL 14, figs. 5-6.) 

 Jassus vlitellarivK Say, JI. Acad. Nat. Sci. Phila., vi, p. 309, 1831; Conipl. Writ., ii. 

 p. 384. 



Bythoscopiis cliteUariv.f Fh., Homop. N. Y. St. Cab., p. 58, 1851. 

 Thamnotettix cUtellarius Uhl., Stand. Nat. Hist., ii, p. 246, 1884. 

 Bythoseopus clitellarius Saund., Ins. Inj. Fruits, p. 188, 1886. 

 Thamnotettix cUtellarius Osb., Proc. la. Acad. Sci., i, pt. 2, p. 126, 1892. 

 Thamnotettix cUtellarius Osb., 20th Kept. N. Y. St. Ent., p. 534, 1905. 

 Thamnotettix clitellarius Osb., Me. Agr. Exp. Sta., Bui. 238, p. 134, 1915. 

 Thamnotettix clitellarius Van D., Cat. Hemip. N. A., p. 678, 1917. 

 Thamnotettix clitellarius Lathr., S. C. Agr. Exp. Sta., Bui. 199, p. 79, 1919. 



Form: Length, 4.5 to 5.5 mm. Vertex short, over twice as broad as 

 long, sloping, rounding to front. Pronotum twice as broad as long, 

 strongly convex anteriorly, humeral margins longer than the lateral, 

 posterior margin slightly emarginate. Scutellum large. Elytra charac- 

 teristic of the genus. 



Color: Vertex bright yellow except for two large black spots apically 

 and the somewhat brown posterior margin. Pronotum brown on anterior 

 third and along posterior margin, with a broad yellow band between. 

 Scutellum brown. Elytra brown with costal area hyaline and a very 

 characteristic oval yellow spot covering the greater part of the clavus. 

 Yellow on face and beneath. 



External genitalia: Female, last ventral segment long, lateral mar- 

 gins rounded with posterior margin which is deeply excavated on either 

 side of a median tooth, which exceeds the rest of the margin and has 

 its truncate apex slightly notched; pygofers long and narrow, basally 

 constricted, slightly exceeded by ovipositor, sparsely spiny. Male, last 

 ventral segment shorter than preceding; valve broad, triangular, margins 

 slightly concave, apex obtuse; plates very long, exceeding bristly py- 

 gofers, margins slightly concave past middle, tips divergent preapically 

 and apices curved. Pygofers with a large spine on apical margin. 



Internal male genitalia : Styles large, with very large laterally rounded 

 anterior process, a strong process to connective, after which the mesal 

 margin is weakly chitinized for a short distance, then tapering sinuately 

 to the obtuse apex which has a short but distinct lateral tooth, the entire 

 apical portion quite roughened, so as to give the lateral margins the 

 appearance of being serrate; connective stout, cleft at both ends, the 

 arms at the anterior end rounded, those at the caudal end straight; 

 cedagus with a weak dorsal basal projection which widens dorsally, the 

 terminal portion long and deeply bicleft apically, forming two strap-like, 

 curling, and acute appendages. 



Distribution: This species has been taken in Douglas, Potta- 

 watomie, and Riley counties. 



Hosts: Found on many different plants. 



