Proterodesma turbotti is a species of moth in the family Tineidae.

[3] The species was named in honour of the director of Auckland Institute and Museum, Graham Turbott,[5] who collected the holotype and paratype specimens from the Antipodes Islands and the Bounty Islands in 1950.

[3][6] In 1971, John S. Dugdale synonymised the genus with Proterodesma due to larvae and genitalia similarities.

[7] The forewings of Proterodesma turbotti measure 12 mm (0.47 in).

[8][7] The species lives in dead vegetation,[7] and can commonly be found on coastal rock faces and in upland grassland.