LAWSON: KANSAS CICADELLID,^. 129 



Scaphoideus immistus (Say). 



(PI. 11, figs. 1-2.) 



Jassus imtnistus Say, Jl. Acad. Nat. Sci. Phila., vi, p. 306, 1831; Compl. Writ., ii, 

 p. 382. 



Scaphoideus immistus Uhl., Trans. Md. Acad. Sci., i, p. 33, 1889. 

 Scaphoideus immistus G. & B., Hemip. Colo., p. 94, 1895. 

 Scaphoideus immistus Osb., Jl. pine. Soc. Nat. Hist., xix, p. 204, 1900. 

 Scaphoideus immistus Osb. 20th Rept. N. Y. St. Ent., p. 525, 1905. 

 Scaphoideus immistus Osb., Ohio Nat., si, p. 259, 1910. 

 Scaphoideus immistus Osb., Me. Agr. Exp. Sta., Bui. 238, p. 116, 1915. 

 Scaphoideus immistus DeL., Tenn. St. Bd. Ent., Bui. 17, p. 58, 1916. 

 Scaphoideus immistus Van D., Cat. Hemip. N. A., p. 632, 1917. 

 Scaphoide^is immistus Pent., Ohio Jl. Sci., xviii, No. 6, p. 183, 1918. 

 Scaphoideus immistus Lathr., S. C. Agr. E.xp. Sta., Bui. 199, p. 69, 1919. 



Form: Length, 4.75 to 6 mm. Vertex about as long as broad, flat, 

 somewhat obtusely angled. Pronotum with anterior margin produced 

 medially, twice as wide as long. Elytra with postnodal cell widened 

 distally, with two to four oblique reflexed veins from outer anteapical 

 cell to costal margin and with no distinct cross veins between claval 

 veins. 



Colar: Vertex white with narrow black or brown m.arginal line and a 

 broad, transverse, brown band with a median tooth. Face white, two 

 black lines on upper part. Pronotum brown with faint whitish trans- 

 verse band in front of middle. Scutellum white, with three fuscous 

 bands, the apical half usually light. Elytra brown with darker nervures 

 and scattered white spots, of which usually two are on the clavus along 

 suture. 



External genitalia: Female, last ventral segment twice as long as pre- 

 ceding, posterior margin somewhat produced, black, and often slightly 

 notched medially; pygofers long and narrow, bearing a few scattered 

 bristles till near the apex, where each bears two tufts of long black 

 bristles; ovipositor exceeding the pygofers. Male, valve short, plates 

 broad but short, obtusely pointed, spiny margined, much exceeded by the 

 long pygofers, each of which bears two bunches of long, black bristles 

 preapically. 



Intei'nal male genitalia: Styles short, with long process for attach- 

 ment to connective equalling anterior end, a rounding lobe laterally past 

 middle, terminating in an acute, outw^ardly curved apex; connective 

 Y-shaped, the arms very short and curved, the stem long and thickened 

 basally; cedagus with a short, thick, knobbed process for attachment to 

 anal tube and two long obtusely pointed caudal processes. 



9— Sci. Bui. — 3058 



