Last modified: May 26, 2023, 1:44 p.m.
Discovered in LG in 2021.
Native
Wingspan, 7–9 mm. Male: antenna strongly serrate. On the ground colour of the forewing, mottled with a mixture of brown and white scales, minute and irregular areas of an ochre colour stand out; towards the apex there is a yellowish white triangular strip. Female: similar to the male, but the antennae are less serrate.
The larva hibernates in a long, narrow, redbrown mine, but changes to a new leaf in spring. The new mine starts from the base of the blade.
Probably univoltine, adults are on the wing from mid May towards July.
The larva feeds on Carex sp.
Moist areas.