([Denis & Schiffermüller], 1775)
Wingspan c. 23 mm (male); c. 17 mm (female).
Formerly known as Diurnea phryganella, this species is locally but widely distributed over much of the British Isles.
In common with D. fagella, the females have under-developed wings (brachypterous).
The adult moths are at large in October and November, when the males can be attracted to light.
Oak (Quercus) and bilberry (Vaccinium myrtillus) are the preferred larval foodplants in this country.