Last modified: March 20, 2021, 11 a.m.
This is a very rare species that probably is extinct in Belgium.
The forewings are ochreous with many white lines and also some little brown spots. The wingspan is 10–15 mm. The antennae have alternating white and black rings till the tip.
The case is smal: 6–7 mm and is partly made of silk and has some darker longitudinal lines. The mouth angle is about 15–30°.
See also bladmineerders.be.
In the 1st stage, the larva feeds on the leaves, afterwards mostly on the flowers. Therefore it is sometimes difficult to find the mines. When the larva is full-grown in September, it hides in leaf litter and does not feed any more after hibernation.
This species flies in July and August.
In Belgium it was only found before 1980 at the coast.