Depressaria niphosyrphas is a moth in the Depressariidae family. It was described by Meyrick in 1931. It is found in south-eastern Siberia. The wingspan is about 23 mm. The forewings are grey sprinkled darker and with an irregular suffused grey-whitish streak, slightly sprinkled blackish, along the costa from the base to two-thirds, extended at the base to the dorsum, from this to one-third margined black beneath, some darker grey suffusion on the basal fourth extending to the dorsum. The first discal stigma is blackish, transverse, beyond this a lobe of whitish suffusion projecting from the costal streak. There are two or three short blackish dashes towards the costa beyond the middle. The second discal stigma is obscure and whitish and there is an indistinct acutely angulated shade of wh