Last modified: Aug. 15, 2019, 12:09 p.m.
A rare species in Belgium, found more frequently after 2004 but still local.
This species is coloured rust-brown and its antennae are ringed to half the length of the front wing or a bit beyond. It has a wingspan of 8–12 mm.
Eggs are deposited at the underside of a leaf.
The caterpillar builds a sloppy built case composed of larger leaf fragments and can reach a size of about 7–8 mm. After hibernation the case can have a two-tone appearance caused by the addition of new and fresh leaf fragments to the case. The mouth angle is 40–45°.
See also bladmineerders.be.
The eggs of this species are laid on the underside of leafs where the young larvae also start to mine from the beginning of October. They overwinter in their case attached to a leaf or twig, resume feeding in April and are full-grown by the end of May .
The adults fly in one generation during June and July.