Porphyrosela dismochrysa is a moth of the family Gracillariidae.

[2] The larvae feed on Hardenbergia species (including Hardenbergia ovata), Kennedia nigricans and Meibomia viridiflora.

They probably mine the leaves of their host plant.

This species was first described by Oswald Bertram Lower in 1897.

This article relating to moths in the subfamily Lithocolletinae is a stub.