LAWSON: KANSAS CICADELLID^. 57 



bust, and hence is readily distin^ished. Len^h, about 4 mm. Vertex 

 short, of about same length throughout. Pronotum more than twice as 

 broad as long, anterior margin broadly convex, posterior margin slightly 

 concave, humeral margins rounding to eye. There is a very distinct 

 bulge to the sides of the elytra that seems quite characteristic. 



Color: Varies from yellowish brown to almost dark brown. Usually 

 quite uniformly colored, except for the two dark spots on vertex and pro- 

 notum. Males and females colored alike. More uniform in color than the 

 following species. 



External genitalia: Female, last ventral segment three-fourths as 

 long as wide, tapering through posterior third, hind margin usually ele- 

 vated ; pygofers broad, exceeded by ovipositor. Male, valve about twice as 

 broad as long, slightly produced medially; plates broad at base, tapering 

 evenly to acute tips. The straightness and evenness of the plates is 

 characteristic. Pygofers shorter than plates and almost hidden by the 

 latter, 



Male internal genitalia: Styles club-shaped, terminating in two short 

 lobes, the inner of which is sharply pointed ; connective broad and well- 

 developed, consisting of a short caudally directed portion and a long part 

 directed cephalad to unite with the oedagus; cedagus consists of a broad 

 T-shaped portion from the base of which arises a very long slender proc- 

 ess extending caudad beyond the margin of the pygofers. 



Distribution: Douglas, Riley, Labette and Pottawatomie 

 counties have furnished the Kansas specimens hitherto col- 

 lected. There are specimens from Kansas City, Mo., in the 

 Snow collection. The range of th's species would seem to be 

 that of the preceding. 



Hosts: Osborn and Ball give the following host plants: 

 Horse-radish, beet, Helianthus, Eupatorium. 



Agallia constricta Van D. 



(PI. 2, figs. 7-10.) 

 Agallia constricta Van D., Can. Ent., XXVI, p. 90, 1894. 

 Agallia constricta O. & B., Proc. Dav. Acad. Sci., VII, p. 52, 189rt. 

 Agallia constricta DeL., Tenn. St. Bd. Ent., Bui. 17, p. 13, 1916. 

 Agallia constricta Van D., Cat. Heniip. N. A., p. 572, 1917. 

 Agallia constricta Lathr,, S. C. Agr. Exp. Sta., Bui. 199, p. 19, 1919. 



Form: A good deal like preceding species but somewhat smaller, not 

 so robust, elytra longer and narrower. Length, 3.5 to 4 mm. Vertex 

 slightly longer next the eyes than elsewhere, posterior margin slightly 

 elevated; pronotum twice as wide as long, anterior margin strongly con- 

 vex, posterior margin slightly concave, humeral margins distinctly de- 

 veloped at the expense of the practically obsolete lateral margins. 



Color: Much the color of Jf-punctata. The type shows a pair of large 

 black spots on vertex, and a pair on posterior half of pronotum. Vertex 

 with a median brown line extending the length of the pronotum and al- 



