Misc. Pub. 344—U. S. Department of Agriculture PLATE 4 
A, Pygidium of P. oleae, from a specimen on olive,fcollected at Tucson, Ariz., 
by Wehrlein 1933. 3B, Pygidium of P. pergandii, from a specimen from lot marked 
type, and apparently collected on orange at Jacksonville, Fla., by Comstock in 
1880. X 340. 
