Last modified: April 23, 2019, 12:44 p.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 dar krey 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 foodplant; late May–June.
Adults are rarely seen in flight. They may be found resting after dark on or near the larval foodplant.
One generation a year: July–August.
Monophagous on Artemisia vulgaris.
Open habitats in grassland, waste ground, ruderal places, coastal areas