The Marbled Beauty (Cryphia domestica) is a moth of the family Noctuidae. It is an abundant species throughout most of Europe East to the Urals, probably the commonest lichenivorous moth of the Palearctic region.
This is quite a small species with a wingspan of 22–30 mm. The forewings are white with dark grey cryptic markings, giving excellent camouflage against the lichens on which the eggs are laid. The intensity of the markings vary considerably, with darker individuals predominating in urban areas, an example of industrial melanism. A significant proportion of individuals also have orange or yellow markings. The hindwings are whitish with a broad grey band at the margin. The adults fly at night in July and August  and are attracted to light.
Across Europe, where it occurs as far South as Sicily and in the North to Gotland. The Eastern distribution is uncertain but it may reach Central Asia. It rises over 2000 metres above sea level in the Alps.
- See glossary for terms used
Forewing cream white with slaty grey markings; orbicular and claviform stigmata contluent forming a figure of 8; hindwing whitish grey with cell spot and outer line dark grey.The species varies in opposite directions; either the dark scales of forewing are more or less obsolete and the wing is overrun with yellow scaling ab. lutescens Fuchs or the wing becomes wholly suffused with the dark tints ab. suffusa Tutt ; the dark specimens from the Pyrenees, referred here by Staudinger, are blacker than the very darkest British specimens, the whole hindwing being blackish also ; in ab. distincta Tutt the ground colour is white, the discoidal spots dark grey; 4 short dark dashes on costa at centre and a shade near apex, a short basal streak and a shade beneath the orbicular stigma are the only markings.
- Seitz, A. Ed., 1914 Die Großschmetterlinge der Erde, Verlag Alfred Kernen, Stuttgart Band 3: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen eulenartigen Nachtfalter, 1914
- "Robinson, G. S., P. R. Ackery, I. J. Kitching, G. W. Beccaloni & L. M. Hernández, 2010. HOSTS - A Database of the World's Lepidopteran Hostplants. Natural History Museum, London.".
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- 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
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