The Satin Beauty (Deileptenia ribeata) is a moth of the Geometridae family. It is found from Ireland, east through central Europe to Russia and Japan.
Illustration from John Curtis's British Entomology Volume 6
The wingspan is 30–40 mm. Adults are on wing from June to August. There is one generation per year.
Larvae feed on various coniferous trees, including Taxus baccata, Abies alba, Carpinus betulus, Betula, Quercus, Prunus spinosa, Vaccinium uliginosum, Lonicera xylosteum and Picea.