Last modified: Oct. 21, 2023, 9:49 a.m.
Used to be observed in the central part of the country and in the limestone area, but seems to have disappeared from Belgium.
Native
The larvae live gregariously at the base of the foodplant. They feed on the radical leaves and the base of the stems.
The moths are active at night and come to light.
Adults can be seen from late April towards late August, occasionally later.
Polyphagous on different Brassicaceae, but especially recorded on Biscutella laevigata.