fairly common species in Belgium.
The larva lives in a tentiform mine on the underside on a variety of cultivated and wild Prunus species, rarely on Malus. The mine is usually situated between two veins, without clear folds. The larva pupates inside
the mine and hibernates.
adults fly in two perhaps three generations a year; onwards from late April till
June and again in August They are mainly active at dusk and come to
Hainaut, Rongy, 31 May 2008.
(Photo © Chris Snyers)