454 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE XLII 



. THE LOCUST BORER 



(Cyllene robiniae) 



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. 



