TRUE PARASITES. 



61 



Ahlerus clisiocampde Ashm. (fig. 9) was reared in the summer of 

 1905 by Messrs. Qaaintance and Girault from the San Jose scale 

 occurring upon pear upon the Department grounds, at Washington. 



Fig. S.—Prospalta aurantii, greatly enlarged (from Howard). 



It was also reared from Dtaspis 'pentagona Targ., occurring upon 

 the grounds of the Department. It affects also Chionaspis furfur us 

 Fitch, and is known to occur in North Carolina, in Illinois, and in the 

 District of Columbia. 



Fig. 9.— ^WgrMsdmocampse, female, greatly enlarged (from Howard). 



RJiopoldeus citrinus How. was reared in 1885 by Mr. Albert 

 Koebele at Truckee, Nevada County, CaL, from Aspidlotiis pern ieio- 

 sus on pear, and was described by the writer in the proceedings of the 

 U. S. National Museum, No. 1142, October 1, 1898. This record was 



