Gretna waga, also known as the common crepuscular skipper, is a species of butterfly in the family Hesperiidae.

It is found in Senegal, the Gambia, Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria, Cameroon, Gabon, the Republic of the Congo, the Democratic Republic of the Congo and Uganda.

Adults have been recorded feeding on the nectar of asclepiad flowers.

The larvae feed on Elaeis guineense.

This Erionotini-related article is a stub.