394 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE XXXII 



THE LOCUST LEAF BEETLE 



(Chalepus dorsalis) 



Fig. 1. The adult beetle enlarged about 8 diameters. 



After Garman. 



Fig. 2. The full grown larva enlarged about 7 diameters. 



After Chittenden. 



Fig. 3. The pupa enlarged about 7 diameters. 



After Chittenden. 



Fig. 4. A leaf of black or yellow locust bearing several mines of the locust 

 leaf beetle. As shown by the illustration each leaflet ordinarily bears but one 

 mine. 



Fig. 5. A typical view of the black locust areas of southern Ohio following 

 several seasons of injury by this insect. The dead trees are black locust and 

 the others are largely of other species, though a few locusts survived. 



