Vol. 33, pp. 171-176 December 30, 1920 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



CERCOPIDAE OF THE VICINITY OF WASHINGTON, 

 D. C, WITH DESCRIPTIONS OF NEW VARIE- 

 TIES OF CLASTOPTERA (Homoptera). 



BY W. L. McATEE. 





The basic identifications upon which this paper is based were 

 made by Mr. Edmund H. Gibson, when he and the writer 

 planned a joint essay on all the Nearctic Cercopidae available 

 in Washington collections. That plan becoming impracticable, 

 due to Mr. Gibson's change of occupation, opportunity is 

 taken to list the Cercopid fauna of the District of Columbia 

 and vicinity. The manuscript of the paper has been prepared, 

 in its entirety, by the author, this including preparation of the 

 keys and more or less revision of the local forms of the genus 

 Clastoptera. Mr. Gibson, however, deserves credit for rec- 

 ognizing that the black variety of C. proteus lacks a name and 

 the name given to it on a subsequent page should be considered 

 of his authorship. 



The number of species of Cercopidae in the United States is 

 small and the District of Columbia apparently has a fair share ; 

 possibly one or two more species than here listed may occur. 

 The occurrence of species at Plummers Id., Md., and vicinity 

 is indicated in the list, either by the actual locality records 

 or by the initials: P. I. and V. P. I. 



Key to the Genera. 



A. Anterior margin of pronotum straight; front strongly swollen, with 

 a prominent median carina; tegmina dark with two yellow to 

 orange-red crossbands. Tomaspis. 



AA. Anterior margin of pronotum rounded or angular; insects lacking, 

 also, the combination of characters of the preceding genus. 



31— Proc. Biol. Soc. Wash., Vol. 33, 1920. (171) 



