rarily observed species in Belgium. Hitherto only known from the
northern part of the country and first observed in 1986 at Niel (AN).
biology of this species is insufficiently known. The larva makes a long
(ca. 20 cm), inconspicuous mine in the stem of Lycopus.
adults have been observed from late May till mid July.
Antwerpen, Viersel, 12 July 2005.
(Photo © Maarten Jacobs)