LAWSON: KANSAS CICADELLID^E. 91 



bifida; lower portion of chitinous processes extending down from anal 

 tube also relatively heavier than in bifida. 



Distribution: Taken in Cherokee county only. 



Hosts: De Long reports sweeping this species from weeds 

 and grasses in pastures, and especially from the ironweed, 

 Vernonia glauca. 



Kolla hartii (Ball). 



(PI. 7, figs. 6-7.) 



Tettiyonia hartii Ball, Proe. la. Acad. Sci., viii, p. 61, pi. 5, fig. 4, 1901. 

 Tetiigonia hartii DeL., Tenn. St. Bd. Ent., Bui. 17, p. 20, 1916. 

 Kolla hartii Van D., Cat. Hemip. N. A., p. 599, 1917. 

 Kolla hartii Ols., Bui. Am. Mus. Nat, Hist., xxxviii, p. 5, 1918. 



Form: Shorter and stouter than preceding species. Length, 3.75 to 

 5 mm. Vertex conical, obtusely rounding, twice as wide as long. Prono- 

 tum twice as long as vertex, about three-fifths as long as wide. Elytra 

 broad, venation simple, as in bifida. 



Color: Female, brownish. Vertex with pair of black spots on pos- 

 terior margin and brown arcs that cover front on either side of a light 

 median line extending up on to apex of vertex. Pronotum with irregular 

 dark spots near anterior margin. Scutellum with dark triangular spots 

 in basal angles. Elytra with nervures pale, claval margins lined with 

 light blue. Male, shining black, with space around ocelli and apex of 

 scutellum pale. Spot on apex of vertex white, front pale with dark arcs 

 on either side of median pale line which has black borders that often 

 enlarge to eliminate the pale line. 



External genitalia: Female, last ventral segment about three-fifths 

 as long as wide, posterior margin truncate, very slightly sinuate on 

 either side of a very small median tooth; pygofers broad and long, form- 

 ing median keel, exceeding ovipositor and bearing few large coarse hairs. 

 Male, plates wide at base but tapering to long acute point posteriorly, 

 with coarse hairs on lateral margins, much exceeded by the long, coarsely 

 haired pygofers. 



Internal male genitalia: Styles longer than in preceding members of 

 the genus, apices curved inward; connective as in preceding species; 

 oedagus U-shaped when viewed laterally, having two short processes ex- 

 tending more or less dorsad and a single process, twice as long, extend- 

 ing caudad, the base of the U being formed by this process; a very 

 characteristic club-shaped process extends downward from the base of 

 the anal tube. 



