Technical Bulletin 1 49. U. S. Dept. of Agriculture 



PLATE 4 



r- 



Jim, 



© 



A.— Bees showing mixed infection with Aspergillus Jlavus and A, fumigatus. 



B.— Dissected abdomens of bees dead of Aspergillus mycosis produced experimentally, the penetra- 

 tion of the esoskeleton by the conidiophores having been prevented by keeping the bodies 

 in a dry atmosphere. 



