local and rather rare species in Belgium.
larva lives on Quercus. It makes a large, oval mine
on the underside of the leaf, contorting it strongly. Pupation inside
the mine, attached solely to a green patch in the centre of the mine.
The pupa hibernates.
adults fly from late April till early July.
Luxembourg, Bomal-sur-Ourthe, 26 April 2009.
(Photo © Jean-Yves Baugnée)