Rather
common in most areas of Belgium.
The
larvae live gregariously in a conspicuous spun web over the leaves
of several Quercus species, preferably on saplings. Pupation
in the feeding place.
The
adults fly from late June towards late August, occasionally there is a
small second emergence from early September till early October. They
are active at dusk and later come to light and sugar.
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Belgium,
Limburg, Kinrooi, 12 July 2003.
(Photo © Leo Janssen)
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