Last modified: Jan. 16, 2020, 12:48 p.m.
A very rare species in Belgium, seldom recorded.
See also bladmineerders.be
The adults fly in one generation a year; from late May towards early August. They come to light.
The larva lives on different species of Luzula and Carex. It makes a erratic meandering gallery and during the following spring it expandes and becomes an irregular elongate blotch, it often occupies the full width of the leaf. It pupates in a loose cocoon external.