rather common species throughout Belgium, the least observed in the
centre of the country.
larva lives in a silk-lined gallery in the roots and underground stem
of Stachys palustris, and occasionally on Mentha
spicata or possibly Stachys sylvatica. It
hibernates. Pupation in a cocoon spun in the soil or amongst
adults fly from the end of May till mid October. They are active in the
evening and later come to light.
Antwerpen, Viersel, 16 July 2004.
(Photo © Maarten Jacobs)