Common Five-Ring (Ypthima baldus, 矍眼蝶).
The mudflats by the river are flooded more so that usual so insects are either submerged, hiding in the tree tops or pressed closer to urban spaces. This is not a butterfly I see very often in Changsha, though there were three of them bustling around the reeds by the river. There were also many people about: mostly fishermen and foragers, but these butterflies hardly seemed to care.