The Buff Arches (Habrosyne pyritoides) is a moth of the family Drepanidae. It is found throughout Europe and is well distributed in the British Isles except the far north of England and all of Scotland.
This is a distinctive and attractive species, its grey-brown forewings marked with bold buff-orange “arches”. The hindwings are grey with white margins. The wingspan is 40-45 mm. It flies from June to August and is attracted to light and sugar.
The larva is orange-brown with a prominent white spot on each side of the head and feeds on bramble. The species overwinters as a pupa.
References
Chinery, Michael Collins Guide to the Insects of Britain and Western Europe 1986 (Reprinted 1991)
Skinner, Bernard Colour Identification Guide to Moths of the British Isles 1984