Red-necked Footman Atolmis rubricollis
Wingspan 25-35 mm. A primarily woodland species, which is distributed locally throughout much of Britain, though it is most frequent in the southern half of England and Wales.
The single generation flies in June and July, when it can sometimes be found flying in the daytime. It is also nocturnal, coming to light.
Feeding on lichens and algae growing on tree-trunks, the larvae live in autumn, and the species overwinters as a pupa.