common species throughout Belgium.
larva lives on Ulmus, Salix, Corylus, Humulus, Urtica, Ribes,
etc. Hibernates as imago.
adults fly in two generation a year: from mid June till early August,
and from the end of August till the end of May of the subsequent
Antwerpen, Hoboken, 16 July 2004.
(Photo © Toon Verbruggen)