458 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE LXIV 



Fig. 1. The Locust Twig Borer (Ecdytolopha insiticiana) . Characteristic 

 injury to locust twigs with a larva exposed in its burrow. 



Figs. 2 and 3. Injury to the trunk of growing poplar by the larvae of the 

 poplar borer, Saperda calcarata. 



