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



Plate XLVl 



Pupa Cases of Aleyrodin/e. 



pupa rase oil loaf. Fis. .'i. -Pra/H/.s Mlocjy,, pupa case on leaf. Fir. b. -.l /.;/""/< .s spi,x<Mis, 

 pupa case on leaf. (Origmal.) 



