LAWSON: KANSAS CICADELLID^. 



217 



Distribution : Very common in the eastern part of the state 

 as shown by the following map : 



Hosts: Doctor Forbes when describing this species reported 

 it as injurious to oats, wheat, and corn. Professor Osborn says 

 it shows a distinct preference for annual grasses such as fox- 

 tail and the panic grasses from which it migrates into the cul- 

 tivated crops on the withering of the former. He also says it 

 is very common on bluegrass and timothy. 



Genus Chlorotettix Van D. 



The members of this genus are mostly rather large species 

 of a uniform green color, often fading to a yellowish-green in 

 preserved specimens. A few species, however, are small and 

 some are marked with spots or bands on the head, pronotum, 

 or scutellum. The vertex is broad, either rounded or distinctly 

 bluntly angled apically. The sides of the pronotum are moder- 

 ately long. The elytra are long and thin, subhyaline, with a 

 distinct appendix, the nervures indistinct. 



All the members of the genus are grass feeders and so no 

 mention will be made of the specific hosts of each species. 



The seven species keyed below have all been recorded from 

 Kansas. 



KEY TO SPECIES.* 



A. Vertex with anterior margin rounded, not distinctly angulate. 



B. General color brownish, elytra appearing striped. 



necopinus. 



* Adapted from key by DeLong, Ohio St. Univ. Bui., xxiii, No. 15, p. 4, 1919. 



