very rare and local species in Belgium. Not often recorded.
larva lives inside the stems of various species of Epilobium and causes a gall generally at one of the nodes. Pupates inside the stem.
adults fly in one generation a year from August and, after
hibernation again till May, though occasionally adults have been seen
during December and January during mild weather. They come
occasionally to light.
Antwerpen, Kontich, 06 January 2007.
(Photo © Gaston Sallaets)