Last modified: Nov. 2, 2022, 2:25 p.m.
A rare species in Belgium, though recorded from all provinces. Not so frequently observed in the southern part of the country.
See also bladmineerders.be
Hibernates as an egg, attached to a leaf of the food plant. Pupates head upwards by a prepared window in a stem.
The adults come to light.
The adults fly in one generation a year; starting from early July till early October, exceptionally later.