152 



LEAF-BEETLES. 



Fig. 156. — Diabrotica loagicornis, Say. —After Forbes. 



named so from its long feelers. Its larva is a very serious pest. 

 As this species winters in the egg stage in corn-fields a simple 

 rotation is all that is necessary to keep it in check. It is not found 

 in Minnesota, at least no specimens have been seen or received, 

 while the two species already described are very common, and 

 the striped kind seems to lie rapidly on the increase. 



The genus Galcnica, as well as some closely allied other 

 genera, contain a series of small oblong beetles, mostly of a dirty 

 clay-yellow color, more or less spotted or marked with black. 

 Some of these beetles are very destructive, not alone to shade- 

 trees, but to fruit-trees as well. 



THE CHERRV LEAF-BEETLE. 



(Adiiiioiiia fciiioralis Melsh.). 



In a number of states this beetle has caused considerable in- 

 jury to the leaves of plum, cherry, and peach. Its natural food 

 is the leaves of the native plum, into which it eats numerous holes. 

 In Minnesota it is common enough in many localities, especially in 



