Last modified: Aug. 31, 2022, 6:12 p.m.
A rare but widespread species in Belgium.
Easily attracted to the pheromone of Grapholita molesta.
The larva build a cocoon In late summer in which it hibernates. The adults come to light.
The adults fly in one generation a year; from March towards late April.
The larva lives in hymenopteran galls on Quercus. Also recorded in Castanea vesca.