A rather common species in most areas of Belgium.

The larva lives in the stem of Tanacetum vulgare. It hibernates in the roots of the foodplant. In spring it mines a young shoot. Pupation on the stem of the foodplant.

The adults fly from mid June till early September. They are active at dusk and come to light.

ID: diagnosis Gillmeria; the head with a frontal scale brush. Diagnosis G. ochrodactyla; markings pale brown as in G. pallidactyla, but more pronounced when fresh. Best to identify on the hindlegs, which are ringed with grey-brown and dark brown.