Joker Butterfly
Byblia ilithyia
Observed at Nairobi, Kenya, January 2012. The wing span is about 6 cm.
These butterflies are common at flowers in gardens around Nairobi and other highland areas. When perched, as at right on flowers of Traveler's Joy (Clematis brachiata), the wings are held folded over the dorsum. There are three species and I suspect this one is the Spotted Joker.