Argyresthia semifusca is a moth of the family Yponomeutidae. It is found in Europe.[1]
The wingspan is about 12 mm. The head is white. Forewings are dark purplish-bronzy-fuscous; a thick white dorsal streak to tornus, interrupted by a median spot of ground-colour ; costa marked with minute white dashes, posteriorly with three or four white strigulae. Hindwings are grey.[2]
Adults are on the wing from June into late August/early September depending on the location.
The larvae feed on Crataegus and Sorbus aucuparia.