Marbled Grey Bryophila raptricula
([Denis & Schiffermüller], 1775)
Wingspan 29-36 mm.
The larvae of this moth feed from autumn to spring on lichens, especially Sticta pulmomacea, on rocks, old stone walls and tree trunks, although have not been found in Britain in this stage.
The adults fly in a single generation in July and August and have occasionally been trapped at light in south-east England. The moth appears to be extending its range in western Europe.