Last modified: Dec. 14, 2024, 7:48 a.m.
A very local and rare species in Belgium.
Native
First observation for Belgium on 2002-11-05 at Oude Doel (OV).
Wingspan 13–16 mm.
The forewings are ochreous brown with a small distinct lighter costal line. There are a few darker-length stripes with blackish and very small whitish dots.
The antennae are ringed alternately brown and white till the tip.
The full-grown case is a trivalved, 6-7 mm long tubular silken case with a mouth angle of 20°-30°. The oldest parts of the case are dark and covered with frass grains and detritus, the younger strips are much lighter and clean.
See also bladmineerders.be
Larvae in September–October. The full-fed larvae leave the host plant for the winter diapause.
Pupation in the spring in the same larval case.
They are on the wing from the end of June till the end of August.
They are found on Atriplex and Chenopodium.