The Anomalous Stilbia anomala
Wingspan 29-36 mm.
A fairly distinctive greyish moth, which occurs most commonly in the north and west of Britain, but also locally in parts of the south and east.
It is predominantly a moorland species, and flies in August and September, when it is attracted to light.
The caterpillars feed on various grasses, but especially wavy hair-grass (Deschampsia flexuosa).