Last modified: May 7, 2021, 11:34 a.m.
A very rare and local species in Belgium, known from the southern part with most observations done in NA.
During 2020 a specimen was observed in AN, the first observation for Flanders. Whether this is a vagrant or expansion of its area, the future will show this.
Hibernates as a pupa in fragile cocoon underground. The adults come to light, sugar, sallow catkins and on flowers of Prunus spinosa and Buddleja davidii.
The adults fly in one generation a year from mid April till end of May.