Sarangesa ruona, the Ruona elfin, is a butterfly of the Hesperiidae family. It is found in thickly wooded savanna and lowland forest in the Maputaland area of KwaZulu-Natal and the north-western parts of the Limpopo Province lowlands east of the Wolkberg and north and east of the Soutpansberg. It is also present in Zimbabwe. The wingspan is 32–42 mm for males and 40–43 mm for females. Adults are on wing from September to May. There are multiple generations per year.