Last modified: March 26, 2021, 9:56 a.m.
An uncommon species in Belgium.
The forewings are ochreous with a lighter costa line just over the middle of the wing. In the males the costal line is pure white while in the females it is ochreous.
Wingspan is 10–13 mm.
The antennae are ringed alternately till ¾.
The caterpillars live in a slender case of 8–11 mm, which is curved at the end, mostly there are small dots on the case.
The mouth angle is 15°.
See also bladmineerders.be.
The fleck mines are often conspicuously brown.
The eggs are deposited at the under side of a leaf.
The larvae can be found almost all year around. The caterpillars are fully grown in September and then they are searching for a place to hibernate. After overwintering they don’t feed any more.
Pupation takes place in June.
The adults come to light.
The adults are on the wing from the end of May till the beginning of september.