
Appearance
The wingspan is 11-14 mm. Adults are on wing from May to June in the United Kingdom. On continental Europe, there are up to two generations yearly, with adults on wing from May to August.
Food
The larvae feed on ''Quercus'' and ''Fagus'' species. The larva spins a leaf into a capacious pod and eats the parenchyma, scarifying the inner surface.References:
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