Mar., 1920] Generic Affinities of Certain Cicadellidce 



165 



which the larvae and adults occurred, as it was not taken from 

 any of the surrounding grasses. It is well adapted to the par- 

 ticular environment, being of practically the same color as the 

 grass on which it lives, and the reduction of wings is an indication 

 that it has acquired a definite restriction to the locality in 

 which it occurs. 



The micropterous form has venation similar to Lonatura 

 especially L. megalopa, but the macropterous venation is dis- 

 tinctly Deltocephaloid with both middle and outer anteapical 

 cells divided by cross veinlets. 



li. S,tt.v\v\.<"f«V 



Jl.pictm 



Fig. 8. a, dorsal view of female; b, vertex of male; c, genitalia of female; 6?,^gen- 

 italia of male Dellocephalus sandersi; e, dorsal view;/, genitalia of male 

 Dellocephalus pictus. (From drawings by Mr. J. D. Smith.) 



Deltocephalus pictus Osb. 

 Proc. Davenport Acad. Sci., Vol. X, p. 165. 



This species was described from one specimen collected 

 on Staten Id., but has since been taken in Tennessee by 

 DeLong, and I have taken it in considerable abundance in 

 North Carolina. The accompanying figures will assist in the 

 recognition of the species. 



