Last modified: March 20, 2021, 12:03 p.m.
A very rare species in the northern part of Belgium, especially at the coast.
The forewings are ochreous yellow till greyish brown and have lighter small longitudinal streaks.
The wingspan is 12–14 mm.
The antennae are alternately ringed with white and brown till 5/6 of their length towards the tip.
The greyish-brown, tri-valved and tubular silken case is about 7 mm in length when reaching its maximal size. It is also covered with dark granules except on some longitudinal stripes that are devoid of this granular material. The mouth angle is circa 20°.
See also bladmineerders.be.
Eggs are oviposited on the flowers of the host plant. In general, the larvae live on the fruits of the hostplant and are full grown in October.
They hibernate and do not feed any more in springtime.
The pupation takes place near ground level on a stalk of the host plant.
The adults predominantly fly in July.
Restricted to the coast area and riversides where the food plant occurs.