Last modified: Jan. 27, 2020, 12:46 p.m.
A rare species throughout Belgium.
See also bladmineerders.be
The adults fly from in April and May. They are active from the evening onwards and come to light.
The larva makes a whitish blotch mine near the tip of Holcus mollis, Arrhenatherum elatius or Festuca arundinacea. Pupation on a leaf under a slight cocoon.