Eriocrania salopiella (also known as the small birch purple) is a moth of the family Eriocraniidae and is found in Europe.
The adult moths are golden coloured with purple markings with prominent yellow triangular patch on the tornus.
Forewings rather short and broad, pale shining golden, strigulated and sometimes partly suffused with purple, veins posteriorly purple ; a well-marked subtriangular dorsal spot of ground- colour before tornus, reaching half across wing ; an indistinct pale costal spot beyond this ; cilia purplish-grey, on dorsal spot ochreous-wdiitish ; 9 absent.
Larva whitish ; head pale brown ; anterior edge of 2 brownish : in blotch (elongate-ovate when young) in leaves of birch ; 5.
He initially allocated the moth to the genus Micropteryx, which comes from the Greek for mikros, little and pterux, a wing.