Last modified: April 23, 2019, 12:44 p.m.
Observed in many areas in Belgium, but never frequent.
See also bladmineerders.be
The adults have been observed during May and June and again from late July till September.
The larva makes a mine in the leaves of Chenopodium and Atriplex species. The gallery is sometimes contorted to such an extent that a blotch mine is formed. The larvae of the autumn generation hibernate full-fed in a cocoon which it leaves before pupating. Pupation in detritus at ground level. Larvae of the spring generation do not form a cocoon.