Spialia therapne, the Corsican red-underwing skipper, is a butterfly in the family Hesperiidae.

It is found on the Mediterranean islands of Corsica and Sardinia.

The underside of hindwing is brick-red, with a white macular band, of which the discocellular spot is proximally neither dentate nor prolonged.

On the underside the spots and fringes are yellowish red.

[3] Adults are on wing from April to September in multiple generations per year.