Last modified: Dec. 4, 2024, 1:27 p.m.
A very rare and local species in Belgium.
Native
Larva feeds within roots, living within a silken tube or tent. The adults are easy to disturb during the day out of vegetation. They are active at dusk and later come to light in small numbers.
The adults have been observed from late May till late September and fly in two generations a year.
The larva lives in the roots of Hieracium umbellatum, Hieracium lachenalii, perhaps also on Sonchus.
It inhabits xerotherm places with slate stone, open forests, forest edges.