Last modified: April 10, 2021, 10:55 a.m.
A rare species in Belgium, with the bulk of observations in Flanders.
No real cocoon, just a silken membrane.
Pupation under a silk membrane in a conical roll at the edge of a leaf. The adults hibernate.
One generation per year: August, after hibernation till May.
Monophagous on Juglans regia.