Last modified: April 17, 2021, 4:14 p.m.
A very rare and local species throughout Belgium.
See also bladmineerders.be
First mining, later in a loose spinning in a shoot or between two leaves. It is not known how the winter is passed, but most probably in the adult stage, because the usual food plant is often flooded during winter and would not produce sufficient growth in early spring to support larvae.
They are active during the day flying over the food plant and later come to light.
The adults fly at least in two generations per year: from late May till July and again from August to early September. Some individuals have been seen well into October.