754 The American Naturalist. [August, 
seem to prefer to feed well out toward the end of the branches. They 
do not feed gregariously except when in great numbers ; therefore they 
seldom strip one branch, as do the larvæ of the Vanessa antiopa, but 
scatter throughout the trees, eating a little from each leaf. Early in 
the season, when they are small and few in number, their ravages are 
scarcely noticed ; but as they grow larger and more numerous their 
inroads on the tree decrease the foliage area night by night, until 
suddenly the leaves appear to have been eaten in a single night, and 
the tree is stripped."—CrARENCE M. WEED. 
