The wingspan is 30–39 mm for males and 34–45 mm females. Adults are on wing from October to early January or as early as August for the nominate subspecies. There is one generation per year.
The larvae of subspecies A. p. pallida and A. p. jonathani feed on Aspalathus species. The larvae of subspecies A. p. grandis are fed by trophallaxis by Lepisiota capensis ants. They also feed on the eggs of these ants.