Last modified: March 5, 2021, 10:18 a.m.
A very rare and local species in Belgium.
Yellowish green with a dark grey or dark brown dorsal line; head capsule yellowish with black spots; prothoracic plate green with a black mark laterally and some black spots; last abdominal segment yellowish green; pinacula inconspicuous, black.
A loose spinning, pupa brown.
The final instars feed on the flowers and the seeds of the foodplant; June–July.
The last instar spins a loose cocoon in the soil or among detritus; July.
The species hibernates in the adult stage. The moths hide in sheltered places and are rarely seen. The adults are active at night and occasionally come to light.
One generation a year: from the end of July and after hibernation from March till early May.
Monophagous on Chaerophyllum temulum.
Woodland margins, old hedgerows, old trackways and sunken lanes where the foodplant grows.