Last modified: Dec. 14, 2020, 5:05 p.m.
A fairly common species throughout Belgium, more observed in the northern part of the country.
Hibernates as a small larva on or near a bud of the food plant. Pupates in a tough, boat-shaped cocoon on the underside of a leaf of the food plant.
The adults fly from late May towards early August in one generation. In favourable years a small partial second generation occurs during September, but it's seldom recorded. They come to light and sugar.