Povolnya platycosma is a moth of the family Gracillariidae. It is known from Sri Lanka.Global Taxonomic Database of Gracillariidae (Lepidoptera)
The larvae feed on Litsea glutinosa. They mine the leaves of their host plant.
References Meyrick, E. 1912b. Lepidoptera Heterocera (Tineae). Fam. Gracilariadae. In: Wytsman, P. (ed.): Genera Insectorum. Fascicule 128. - — :1–36, pl. 1.