WiRTXKR : Hemipif-Ra OF Wf.stf.rn Pennsylvania. 221 



Family JASSIDiE. 



Subfamily A COCEPHALINjE. 

 Genus ACOCEPHALUS Germar. 



335. A. albifrons Linnaeus. 



Greensburg, Sei)tember 5, 1901, in the cemetery on the roots 

 of blue-grass ; Penn Station, August 12, 1904, in woods under 

 matted grass. 



Genus XESTOCEPHALUS VanDuzee. 



336. X. pulicarius VanDuzee. 



Greensburg, June 18, August to October 28, 1899. On high 

 ground in an open wood. 



337. X. tessellatus VanDuzee. 



Greensburg, May 25, at the same place as the preceding. 



Subfamily JASSINyE. 



Tribe Dorydaria. 



Genus PARABOLOCRATUS Fieber. 



338. P. viridis Uhler. 



Patton, taken with nymphs, June 19, 1903, on willows. 



Genus PARAMESUS Fieber. 



339. P. twiningi Uhler. 



Penn Station, June 4, in numbers; September 14, 1903. On 

 weeds, blackberry bushes and underbrush of various kinds. 



340. P. vitellinus Fitch. 



Greensburg, June 23, 1901 ; Penn Station, July 4, 1904. 

 Sweeping bushes. 



Tribe Deltocephalaria. 



Genus PLATYMETOPIUS Burmeister. 



341. P. acutus Say. 



Greensburg, May 16 to June. A second brood appears from 

 August to October. On grass, especially in oi)en woods. 



342. P. frontalis VanDuzee. 



Greensburg, Patton. This species is also double-brooded, and 

 often occurs in the company of P. acutus in shaded places. 



