Last modified: June 21, 2022, 4:05 p.m.
A very rare and local species in Belgium, hitherto only known from the Kempen and the south of the country. Rarely seen.
The adults fly in two generations a year; mainly during June and August. They are active in the sunshine and later come to light.
The larva lives in a silken tube amongst flowers of Thymus serpyllum. Hibernates in the larval habitation and pupates in a subterranean cocoon amongst moss.