Last modified: Jan. 21, 2020, 9:58 p.m.
A rather rare species in Belgium.
See also bladmineerders.be
The adults fly in June and July. They are mainly active at dusk.
The young larva makes a mine just under the bark of Sarothamnus or Genista tinctoria. It hibernates in the feeding place. Pupation takes place in a white cocoon on the stem of the foodplant.