Last modified: March 14, 2021, 3:26 p.m.
A rare species, mainly known from the northern half of Belgium.
The larva feeds on the flowers and the seeds, or in a stem or shoot, eating the pith.
It hibernates full-fed in the larval feeding place. Pupation in the same place or amongst detritus on the ground.
The adults have been observed from the end of April till mid September. It is not clear whether this is due to a long emergence period or to several generations a year. The moths are active in the evening and later come to light.