Dingy Footman Eilema griseola
Wingspan 32-40 mm.
Several of the Eilema species can be difficult to tell apart, but this moth has broader, more rounded forewings than many of the others. It can be quite greyish, but a yellowish form, ab. straminola does occur in places.
It flies in July and August, and can be found around damp woodland, fens and sea-cliffs.
It is fairly common in the southern half of England and Wales, and feeds on various lichens.