Tech. Series 27, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate XXI. 



Fig. I.-Aleurodicus holmesic Pup/e on Leaf, Showing Waxy Secretion. (Original.) 





r^^=^ ,. . / /^, J^^f; 



Fig. 2.-ALEUR0DICUS neglectus: Pup/e on Leaf, Showing Waxy Secretion. 



(Original.) 



