LAWSON: KANSAS CICADELLID^. 221 



Distribution: Van Duzee reports this species from Kansas. 

 The specimens in the Snow collection are from Colorado, 

 Nebraska, and Maine. 



Chlorotettix viridius Van D. 



Chlorotettix viridms Van D., Psyche, vi, p. 309, 1892. 

 Athysanvs viridhis Southw., Science, xix, p. 288, 1892. 

 Chlorotettix viridius Weed, Can. Ent., xxiv, p. 278, 1892. 

 Chlorotettix viridiits Osb., 20th Kept. N. Y. St. Ent., p. 538, 1905. 

 Chlorotettix viridius DeL., Tenn. St. Bd. Ent., Bui. 17, p. 86, 1916. 

 Chlorotettix viridius Van D., Cat. Hemip. N. A., p. 687, 1917. 

 Chlorotettix viridius DeL., Ohio St. Univ. Bui., xxiii, p. 15, 1919. 

 Chlorotettix viridius Lathr., S. C. Agr. Exp. Sta., Bui. 199, p. 84, 1919. 



Form: Like unicolor but smaller. Length, 6 to 7 mm. Vertex 

 slightly longer at middle than next the eye, over twice as wide as long, 

 broadly rounding with front. Pronotum scarcely twice as wide as long, 

 anterior margin broadly convex, posterior margin slightly concave. 

 Elytra greatly exceeding abdomen. 



Color-: Bright or apple-green. Vertex and anterior portion of pro- 

 notum yellowish. Elytra hyaline, nervures greenish. 



External genitalia: Female, last ventral segment with acute lateral 

 angles between which is a broad incision reaching nearly to the base, the 

 margins of the incision each with an obtuse blackish tooth near the 

 middle; the long sparsely spined pygofers slightly exceeding the ovi- 

 positor. Male, valve broad, slightly shorter than last ventral segment, 

 broadly rounded posterioi'ly ; plates short, produced beyond the valve 

 about the length of the latter, together nearly semicircular, margins 

 spiny, apices somewhat divergent; thin pygofers greatly exceeding the 

 plates. 



Distribution: Specimens of this species have thus far been 

 found in Labette, Bourbon, and Cherokee counties. Thus it 

 seems to be confined to the southeastern part of the state. 



Chlorotettix vividus Crmb. 



Chlorotettix vividus Crmb., Ann. Ent. Soc. Am., viii, p. 197, 1915. 

 Chlorotettix vividtis DeL., Tenn. St. Bd. Ent., Bui. 17, p. 88, 1916. 

 Chlorotettix vividus Van D., Cat. Hemip. N. A., p. 687, 1917. 

 Chlorotettix vividus DeL., Ohio St. Univ. Bui., xxiii, p. 19, 1919. 

 Chlorotettix vividus Lathr., S. C. Agr. Exp. Sta., Bui. 199, p. 84, 1919. 



Form: The smallest species of the genus in Kansas. Length, 5.5 to 

 6 mm. Vertex nearly twice as long at middle as next the eye, one and 

 one-half times as wide as long, convex. Pronotum scarcely twice as wide 

 as long, anterior margin strongly convex, lateral margins short, posterior 

 margin slightly emarginate. Elytra strongly exceeding abdomen. 



Color: Brownish-green; elytra more distinctly green than vertex, pro- 

 notum, and scutellum. 



External genitalia: Female, last ventral segment twice the length of 

 the preceding, lateral angles obtuse, posterior margin broadly and tri- 



