Argyresthia semitestacella

Argyresthia semitestacella is a moth of the family Yponomeutidae. It is found in Europe.

The wingspan is 11–14 mm. The head is yellowish white. Forewings are light ferruginous-brown, faintly purplish tinged; a thick whitish dorsal streak to tornus, interrupted by a dark ferruginous-brown triangular median spot. Hindwings are grey.

The moth flies from July to October. .

The larvae feed on beech.