An uncommon species in Belgium.
larva lives in a dark brown case on the leaves of mature Alnus
glutinosa and Alnus incana. Hibernates
as a larva in the case, usually attached to a twig of the foodplant,
less often to a leaf.
adults fly in June and July.
Limburg, Kinrooi, 02 June 2005.
(Photo © Chris Steeman)