Last modified: Jan. 26, 2020, 6:58 p.m.
A common species in Belgium, mainly in the northern half.
See also bladmineerders.be
The adults fly in two generations a year: in July-August, and from November hibernating till April. They are active in the evening.
The young larva mines the leaf of Quercus in a short, contorted gallery. Later, it feeds externally on the underside of the leaf. Pupation in a white, ribbed cocoon on a leaf or the tree trunk.