Last modified: May 5, 2024, 2:51 p.m.
A not so common species throughout Belgium.
Native
Wingspan 10–15 mm. This is a dark purplish brown species with a clear white band in the cilia, a dorsal patch with striae, small black dots on the termen and plumbeous striae from the pale costal strigulae. .
Most of the species in this genus should be checked for genitalia, especially when worn.
Whitish body with a brown head brown, laterally darker and prothoracic plate brownish.
The larva lives in the rootstock, tunnelling down into the roots of the food plant. It hibernates in the larval stage. Pupation in a silken cocoon in the larval habitation.
The adults are readily disturbed from rest during the day. They are active towards late afternoon and later come sparsely to light.
The adults fly in two generations a year from end of April till late June and again from early July towards late September. Most observations during May and August.
The larva lives on Leucanthemum vulgare. In literature is Tanacetum vulgare also mentioned, but this is still uncertain.
It inhabits flowery grasslands and roadsides.