Last modified: Jan. 24, 2020, 1:03 p.m.
Observed in many areas in Belgium. Fairly common in the northern part and rare in the southern part of the country.
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.