Last modified: March 5, 2021, 11:21 a.m.
A very rare and local species in Belgium, only known from some old records.
Dull green with reddish brown shading dorsally; head capsule pale brown; prothoracic plate and last abdominal segment greenish brown marbled brown; pinacula dark grey and conspicuoud.
A loose cocoon, pupa brown.
The caterpillar feeds internally in a gallery within the rootstock. The species hibernates in the larval stage and after hibernation the larva moves to a fresh, young stem during March–May.
Pupation in a loose cocoon in the soil or among root debris at the base of the food plant, late May–June.
Adults are rarely seen in flight. They may be found resting after dark on or near the larval food plant.
One generation a year: July–August.
Monophagous on Artemisia vulgaris.
Open habitats in grassland, waste ground, ruderal places, coastal areas