LAWSON: KANSAS CICADELLID^. 161 



half, equalling the ovipositor. Male, last ventral segment as long laterally 

 as preceding, but w^ith posterior margin concave; valve broad but short, 

 rounded broadly posteriorly; plates broad basally, spined margins taper- 

 ing to acute tips; pygofers exceeding plates, armed with a few stout and 

 many fine bristles. 



Distribution: Taken in Pottawatomie county only. 



Hosts: Osborn reports it as occurring on annual grasses. 



Genus Lonatura O. & B, 



The members of this genus have a conical head, over three 

 times as wide across the eyes as the length of the vertex, which 

 is obtusely angled. The pronotum is short, scarcely as long 

 as the vertex, only slightly emarginate posteriorly, covering 

 base of elytra and scutellum in brachypterous forms. Elytra 

 with obscure venation and only two anteapical cells, long and 

 narrow, with large appendix, or short and broad, covering only 

 second abdominal segment. 



At least three species of this genus should occur in Kansas, 

 only one, however, having yet been taken. 



KEY TO SPECIES 



A. Forms small, less than 3 mm. catalina. 



AA. Forms larger, 3 mm. or over. 



B. Forms large, elytra covering only first two abdominal segments 

 and each with at least one black spot. noctivaga. 



BB. Forms smaller, elytra longer, covering all but two last seg- 

 ments of abdomen and without spots. tiebulosa 



Lonatura catalina 0. & B. 



Lonatura catalina O. & B., Proc. Dav. Acad. Sci., vii, p. 83, pi. 4, fig. 2, 1898. 

 Lonatura catalina DeL., Tenn. St. Bd. Ent., Bui. 17, p. 93, 1916. 

 Lonntura catalina Van D., Cat. Hemip. N. A., p. 651, 1917. 

 Lonatura catalina Fent., Ohio Jl. Sci., xviii. No. 6, p. 184, 1918. 



Form: Very small, robust. Length of brachypterous form, 2.75 mm. 

 Macropterous females slightly larger than macropterous males, vertex 

 about as long as wide, sloping, broadly rounding to front, obtuse apically, 

 whole surface distinctly granulose. Pronotum shorter than vertex, an- 

 terior margin strongly convex, lateral margins short, humeral margins 

 distinct, broadly rounding with slightly emarginate posterior margin. 

 Scutellum large. Elytra long and narrow, exceeding abdomen. Brachyp- 

 terous forms have a slightly longer head, very short truncate elytra, the 

 pronotum seemingly covering the base of the elytra and the scutellum, 

 the latter appearing small, the abdomen of the male being shorter and 

 more robust than that of the female. 



Color: Macropterous females have yellowish vertex, pronotum, scu- 

 tellum and elytra greenish-gray. Macropterous males have a yellow ver- 

 tex, pronotum and scutellum yellovdsh-brown and elyLra deep, smoky- 



11— Sci. Bui. — 3058 



