156 Amials Entomological Society of America [Vol. XV, 



clover {Trifolium repens), foxtail (Setaria glauca), and in one 

 instance, soybeans {Glycine histida). In this case the beans 

 had been planted on clover sod, plowed up rather late in the 

 spring, and many of the insect inhabitants of the field previously 

 feeding on the clover had turned their attention to the 

 soybeans. 



They feed in much the same manner as Crambid larvae, 

 making a shallow burrow in the ground, loosely lined with silk, 

 and a silken tube extending a short distance from this burrow. 

 The first instar larvse feed mainly on the under sides of the 

 leaves, especially where such leaves come in contact with the 

 ground. They work as skeletonizers, leaving the coarser parts 

 of the leaves. After the third instar, the larvae work on both 

 the upper and under sides, and usually consume the entire 

 leaf, unless the veins are large and very woody. Frequently 

 the stalk of small plants, and the stems of the leaves, are cut 

 off close to the ground, and the leaf or plant dragged to the 

 burrow of the insect, being pulled partly within the burrow, and 

 then nearly all consumed. The larv« also frequently web 

 the leaves lightly together when feeding upon them. 



The insect has been observed and reported as injuring red 

 clover, sweet clover, and alfalfa in numerous instances during 

 the past three seasons. In several cases, crops have been 

 seriously damaged. 



A small percentage of the larvae have been found to be 

 parasitized. 



Complete control was obtained in fields of young sweet 

 clover by thoroughly spraying the plants with a solution of 

 arsenate of lead, used at the rate of two pounds to fifty gallons 

 of water. 



