The forewings of the males are whitish-grey, intensively mottled with blackish-grey spots all over wing and a few ochre-brown scales in the dorsal part.

The ground colour of the forewings of the females is whitish-grey, intensively mottled with blackish-grey spots all over the wing and with a few ochre-brown scales in the dorsal part.

They live in the shoots and as a leaf miner in the basal leaves of their host plant.

Mined leaves are partially spun together and covered with a fine silken web.

The species name refers to the Orobian Alps (Alpi Orobie) in northern Italy, where the type locality is situated.