Pasiphila derasata is a species of moth in the family Geometridae. It is found in Africa, south of the Sahara, including the Islands of the Atlantic Ocean (Cabo Verde) and the island of the Indian Ocean. The wingspan of this moth is about 14–18 millimetres (0.55–0.71 in). The edge of the forewings of the males have a convex shape that makes it easy to distinguish them from the females.