Appearance
The wingspan is 35–45 mm. Adults are on wing from April to July in the south and from May to August in the north. There is one generation per year in the north and two or more in the south.
Food
The larvae feed on the leaves of "Betula". Other recorded hosts include "Tilia americana", beech, elm, "Ostrya virginiana", maple, oak, poplar, walnut and willow.References:
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