McDunnough, 1935[Synonyms: gueneeana]
Wingspan 12-15 mm.
Distributed widely throughout England, and common in places, becoming scarcer in northern England, Wales and Scotland.
Inhabiting dry grassy places, the adults fly in June and July, during the afternoon and towards sunset.
The larvae feed in the rootstock of yarrow (Achillea millefolium) and tansy (Tanacetum vulgare).