Last modified: Jan. 11, 2026, 6:09 p.m.
A very rare but widespread species throughout Belgium.
Native
The larva makes a gradually widening transparant gallery from top of leaf towards the base of the food plant.
The adults come to light.
The adults fly in one generation a year from May till mid June.
The larva lives on Poaceae like Brachypodium sylvaticum, Festuca, Poa, Elymus repens etc...