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.[1]
The wingspan is 19–21 mm. 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.[2] Adults are on wing from April to September in multiple generations per year.[3]
The larvae feed on Sanguisorba minor. They make a shelter of spun leaves.