Charaxes vansoni

Charaxes vansoni, the Van Son's emperor, is a butterfly of the family Nymphalidae. It is found in southern Africa.

The wingspan is 48–56 mm in males and 50–60 mm in females.

Description
In males of Charaxes vansoni the two subapical spots on the forewing upperside are blue, whereas in Charaxes phaeus, with which it is often sympatric, they are white and the ground colour of the hindwing underside is pale coppery brown, with the silvery sheen comparatively reduced, extending only from the base along the costa and cell. In females of Charaxes vansoni the median band on the upperside may be white, greenish white or bluish. The spots on the forewing upperside vary from white to orange-ochre

Biology
It flies year-round, with peaks from February to May and in spring. The habitat is dry savanna.

The larvae feed on Peltophorum africanum.

Taxonomy
Charaxes vansoni is a member of the large species group Charaxes etheocles