Biology. Hostplants: Betula spp., Salix pentandra L. (only northern Finland, not reared). Larvae from August to November, adults fly from May to July.
Distribution. Lithuania: Ivinskis et al. 1985; Belarus: Merzheevskaja et al. 1976; Corsica: Van Nieukerken et al. 2006. J. Buszko (in litt.) observed tenanted mines in Bulgaria (see below), thus providing a new record.
Material. Bulgaria: tenanted mines, Bačkovo, 20.X.2004, on Betula pendula, J. Buszko, observation.