Last modified: Aug. 21, 2020, 5:07 p.m.
A very rare and local species in Belgium, only found in LI.
Lobe case. Each lobe consists of a mined leaflet, therefore it has a rather whitish look. Mouth angle 20–40°.
See also bladmineerders.be.
The small leaves of the food plant are completely mined and become rather white. The caterpillars are fully grown in June. Pupation takes place low on the stem of the food plant.
The adults are on the wing from late June till the whole of July.