400 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE XXXV 



Fig. 1. Work of the catalpa sphinx, showing complete defoliation. Occa 

 sionally entire plantations are defoliated. 



Fig. 2. The Forest Tent-Caterpillar (Malacosoma disstria). A cluste 

 of larvae upon the trunk of a tree. 



Photograph furnished by Prof. P. J. Parrott. 



