rather common species in Belgium.
larva feeds from a tubular leaf case on Alnus, Butula, Carpinus, Crataegus, Malus, Sorbus and Tilia. Pupation in the case attached to a stem of the
food plant, vegetation or tree trunks.
adults fly in one generation a year; onwards from May till late June.
Oost-Vlaanderen, Wortegem-Petegem, 29 August 2009.
larval case on Betula
(Photo © Steve Wullaert)