Acraea alalonga, the long-winged orange acraea, is a butterfly of the family Nymphalidae. It is found in montane grassland from the Drakensberg and midlands in KwaZulu-Natal, north into Mpumalanga and the Wolkberg in Limpopo.
The wingspan is 54âÂÂ74 mm for males and 58âÂÂ74 mm for females. Adults are on wing from November to January (with a peak in December) and from March to May (with a peak in April). There are two generations per year.
The larvae feed on Fabaceae species, including Aeschynomene species.
It is a member of the Acraea rahira species group- but see also Pierre & Bernaud, 2014