LAWSON: KANSAS CICADELLID^. 145 



valve, broad, obtusely produced posteriorly; plates broad basally then 

 narrowed and running with parallel margins to obliquely truncate apices : 

 margins with bristles on proximal two-thirds, exceeding the short 

 pygofers. 



Internal male genitalia: Styles very large, with large triangular 

 process for attachment to connective, lateral margin broadly and deeply 

 incised apically, incision bearing fine hairs forming a slender, curving 

 apex, crenulated on extreme inner margin ; connective narrow proximally, 

 then widening, then narrowing to parallel-margined apical portion, hol- 

 lowed for nearly entire length; oedagus very characteristic with broad 

 base sending two short arms dorsad, then slightly tapering to apex 

 where it widens and flattens out into two wings, from betvveen which there 

 extend dorsad two long slender processes with a pair of stout recurved 

 spines cephalad of these. 



Distribution : Taken in Douglas, Decatur and Pottawatomie 

 counties. 



Host>i: Blue grass seems to be the chief nost. 

 Deltocephalus misellvs Bail. 



Deltocephalvs miseUus Ball, Can. Ent., xxii. p. 191, 1899. 

 Pettocephaius mUellvs Uarb., Bui. Am. Mus. Nat. Hist., xxxiii, p. 533, iyi4. 

 Dettocephaiug museUus Gibs. & Cog., Ohio Jl. Sci., xvi, p. 75, ISJlo. 

 Deltocfphalti^ misellus Osb., Me. Agr. Erp. Sta.. Bui. 238, p. 117, 1915. 

 DeUoeephalus misellus Tan D., Cat. Hemip. X. A., p. 642, 1917. 



Form : Resembling sayi, but smaller. Length, 2.75 to 3 mm. Vertex 

 flat, as long as width between the eyes, obtusely angled apically. Prono- 

 tum over twice as wide as long, strongly convex anteriorly, posterior 

 margin slightly emarginate, fusing with humeral margins, lateral mar- 

 gins very short. Elytra broad and short, broadly rounding apically, 

 shorter than abdomen in female, exceeding abdomen in male. 



Color: Cinereous, marked with brown; vertex white, with two oblique 

 lines at apex whose base is joined by a brown line, two large brown spots 

 on the disc, and two .smaller ones at the base. Pronotun> showing faintly 

 four broad longitudinal lines, otherwise irregularly fuscous marked. 

 Elytra cinereous with white nervures generally strongly m.argined with 

 fuscous. Face fuscous marked with light arcs. 



External genitalia: Female, last ventral segment half longer than 

 preceding, somewhat naiTowed posteriorly, posterior margin somewhat 

 produced, especially medially; pygofers sparsely bristled, slightly ex- 

 ceeded by the ovipositor. Male, valve triangrular, obtuse apically; p.ates 

 together forming a triangle broader than long, spiny margins regu- 

 larly tapering to the acute, slightly divergent apices; pygofers very short, 

 very sparsely bristled, exceeded by the plates. 



Distribution: This species has not yet been taken from this 

 state but should be found in the northeastern portion. 



10 — Sci. Bui. — 3058 



