LAWSON: KANSAS CICADELLID^. 227 



AA. Species smaller — concluded. 



BB. Vertex with six black spots. 



C. Four of the black spots in a row on the margin of ver- 

 tex ; basal angles of scutellum black. lejnda. 



CC. Black spots of vertex in two rows of three each, the two 

 anterior pairs usually forming lines; basal angles of 

 scutellum unmarked. sexnotata. 



Cicadula piinctifrons (Fall.). 



Cicada iruncUfrons Fall., Hemip. Suee., Cicad., p. 42, 1826. 



Thamnotettix punctifrons Boh., Kong. Yet. Akad. Handl. for 1847, p. 33. 



Jasstts punctifrons Flor., Rhjn. LivL, p. 328, 1861. 



Liniotettix jninctifron.s Salilb., Cicad., jj. 244, 1871. 



Cicadula punctifrons Fieb., Revue d'Eut., iv, pp. 50, 58, 1885. 



Cicadula punctifrons Van D., Psyche, vi, p. 305, 1892. 



Cicadula punctifrons Mel., Cicad. Mitt. Eur., p. 34, pi. 11, figs. 1-4, 1896. 



Cicadula punctifrons Edw., Hemip. Homop. Brit. Isds., p. 185, pi. 21, fig. 3, 1896. 



Cicadida punctifrons Osb., 20th Rept. N. Y. St. Ent., p. 540, 1905. 



Cicadula punctifrons Yan D., Cat. Hemip. N. A., p. 692, 1917. 



Form: A robust species. Length, 4 to 5 mm. Vertex nearly parallel- 

 margined, very slightly longer on the middle than next the eye, broadly 

 rounding with front. Pronotum twice as wide as long, anterior margin 

 broadly convex, posterior margin very slightly emarginate, lateral 

 margins very short, humeral margins long. Elytra long and narrow, 

 greatly exceeding the abdomen, strongly overlapping apically, appendix 

 distinct. 



Color: Vertex, pronotum, and scutellum dirty-yellow. Vertex with 

 two large round black spots anteriorly. Elytra milky-white, washed with 

 yellow. 



External genitalia : Female, last ventral segment about as long as 

 preceding, posterior margin slightly produced medially; pygofers large, 

 widest at the middle, equalling or slightly exceeding the ovipositor. Male, 

 valve broad, rounded posteriorly, about three-fourths as long as last 

 ventral segment ; plates broad basally, about twice as long as valve, spine- 

 less margins narrowing somewhat concavely to the subacute somewhat 

 divergent apices ; pygofers broad, bristly, slightly exceeding plates. 



Distribution: Hamilton county has furnished the only speci- 

 mens of this species yet taken in the state. 



Hosts: Willow. 



Cicadula punctifrons var. repleta Fieb. 



(PI. 15, figs. 3-4.) 

 Cicadula punctifrons var. repleta Fieb., Eevue d'Ent., iv, p. 49, 1885. 

 Macrosteles punctifrons var. repleta Horv., Ann. Mus. Natl. Hung., vi, p. 566, 1908. 

 Cicadula punctifrons var. americana Yan D., Can. Ent., xxiii, p. 169, 1891. 

 Cicadula punctifrons var. americana Osb., 20th Rept. N. Y. St. Ent., p. 540, 1905. 

 Cicadula punctifrons var. americana DeL., Tenn. St. Bd. Ent., Bui. 17, p. 93, 1916. 

 Cicadula punctifrons var. repleta Van D., Cat. Hemip. N. A., p. 693, 1917. 



Form: Like the preceding but usually larger. Length, 5 to 6 mm. 

 The lateral margins of pronotum relatively longer than in typical puncti- 

 frons. 



