Bui. 102, Bureau of Entomology, U. S. Dept. of Agriculture. 



Plate IV. 



Fungus-Infected White Flies. 



[Red Aschersonia (levelopinjr on Ahi/rndts inconspicua infcstiiiK sweet-potato leaves (top); red 

 Aschersonia infecting the cloudy-winKed white fly (Alcyrodcs nubifrra) (lower left); red Ascher- 

 sonia pustules, enlarged, showing mycelium and pyenidia (lower right). (Original.)] 



