INSECT ENEMIES OF EASTERN FORESTS 503 
FIGure 125.—Gulls of Ectoedcinia populclla on petioles of quaking aspen. 
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backward-pointed spines on the backs of abdominal segments 2 to 8, 
inclusive. 
This moth is found in the northeastern part of the United States 
from New Jersey to Illinois and northward, and in Canada in Proy- 
inces of Quebec, Ontario, and British Columbia. The favored food 
plant is sugar maple, and rarely red maple, birch, and beech, when 
the more favored food has become exhausted. The moths emerge 
during May and deposit their eggs in the leaves. Hatching takes 
place in a few days, and the young larva feeds on the tissues between 
the upper and lower epidermis of a leaf as a miner for 10 days or 2 
