458 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE LXIV 



Fig. 1. — The Locust Twig Borer (EcdytolopJia 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. 



