454 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE XLII 



THE LOCUST BOEER 



(Cyllenc rohiniac) 



Fig. 1. — The eggs much enlarged inserted in the crevices of a split limb. 



Fig. 2. — The adult beetle. Enlarged about three diameters. 



Fig. 3. — Characteristic burrow in the trunk of a young locust tree, showing 

 larva within. 



Fig. 4. — A young locust tree broken by wind as a result of the work of the 

 borer. 



