BULLETIN 1336, U. S. DEPARTMENT OF AGRICULTURE 
SYNONYMY 
The following synonymy is given in Barnes and McDunnough's 
list (-?): 
Plathypena Grt. 
scabra Fabr. 
erectalis Gn. 
palpalis Hav. 
obesalis Steph. 
ab. subrufalis Grt. 
GEOGRAPHICAL DISTRIBUTION 
A study of all the available definite locality records shows that the 
species occurs throughout the United States and southern Canada 
east of the ninety-eighth meridian, except possibly along a portion 
of the Gulf coast and southern Florida, from which sections no data 
have been secured by the writer. The infested territory is repre- 
sented by the shaded area in the map (fig. 1). 
Fig. 1. — Map showing distribution of the green clover worm in the 
United States 
FOOD PLANTS 
The larva? ordinarily feed on leguminous crops, and among forage 
crops are most frequently found on alfalfa, red clover, soybean, and 
cowpea. In Tennessee alfalfa seemed to be preferred above all other 
food plants. This was further demonstrated by caged material. 
Larvae left in a cage containing red clover, cowpeas, blackberry, 
strawberry, and alfalfa attacked and stripped first the alfalfa plants. 
In addition to these crops, Chittenden (.2) recorded the larvae from 
vetch and Lima bean, also at different times from both strawberry 
and blackberry, and in great numbers on tickweed, all in the vicinity 
of Washington, D. C; E. H. Gibson found one feeding on sweet- 
clover and swept two more from the same plant; P. Luginbill reported 
