Last modified: June 17, 2024, 12:14 p.m.
A very rare and local species in Belgium.
Native
The silken trivalved tubular case measures 8–10 mm and has a mouth angle of 20°.
See also bladmineerders.be.
The larva lives in a tubular tube and feeds on green or black fruits, often close to the ground and hidden in the vegetation.
The caterpillar feeds on from August to September and, after hibernation, until May.
The adults are on the wing from the end of June till the beginning of August.
This species lives predominantly on Fallopia convolvulus but sometimes also on Polygonum spp.