Last modified: Sept. 28, 2020, 10:09 a.m.
Observed in many areas in Belgium, in all provinces. Fairly common in the northern part and rare in the southern part of the country.
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.
See also bladmineerders.be
The larvae of the autumn generation hibernate full-fed in a cocoon which they leave before pupating. Pupation in detritus at ground level. Larvae of the spring generation do not form a cocoon.
The adults come to light.
Two generations a year: the adults have been observed during May and June and again from late July till September.