Last modified: Feb. 21, 2020, 12:50 p.m.
An extreme rare and declining species In Belgium. Rarely observed.
The larvae can be found onwards from April towards July. First instars are green, later instars are brown.
First instars are green and like to live on the inflorescence of the host plant, older larvae are brown and are mainly active at night and stay always close to the host plant. The pupation takes place in the ground. The species overwintering as an egg. The adults are active from dusk onwards and later come to light and sugar.
They are on the wing from late August till mid November in one generation a year.