Bui. 92, Bureau of Entomology, U. S. Dept. of Agriculture. 
Plate VIII. 
Pupa Cases of the Citrus and the Cloudy-Winged White Flies. 
Fig. 1.— Leaf showing pupa cases of Aleyrodes citri; also a few pnpse and eggs. Fig. 2.— Under 
surface of orange leaf, showing heavy infestation by citrus white fly. Fig. 3.— Leaf showing 
pupa cases of A. nubifera. Note delicate structure as compared with those of A. citri. (Original. ) 
