The Dark Grass Blue or Clover Blue (Zizina antanossa) is a butterfly of the Lycaenidae family. It is found in all of Africa, including Madagascar and Réunion. The wingspan is 20–24 mm for males and 21–28 mm for females. Adults are on wing year round in warm areas, with peaks from October to November and from March to April in southern Africa. The larvae feed on Desmodium incanum and Indigofera species.