Females are normally encountered singly, flying in light gaps in the forest understorey or basking on bushes along forest trails. Males however are usually encountered in mud-puddling swarms on river beaches in full sunshine.

It is worth recalling my observations of mud-puddling butterflies seen on a particular sandbank on the Rio Madre de Dios, Peru, in August 2007 :

On the day I arrived, recent rainfall had left the sandbank damp. Species including Panacea prola, Phoebis agarithe, Dryas iulia, Philaethria dido, Protographium agesilaus and Melete lycimnia were present in large numbers, formed into compact single species groups scattered along a stretch of about 50 metres. Other butterflies including Adelpha jordani, Lasaia agesilas, Baeotus deucalion, Marpesia furcula and Eunica clytia were only present in one's and two's. As the sand dried out over the next 4 days the species composition changed remarkably. First to disappear were the Phoebis, followed by the Protographium. New arrivals not seen previously included the skippers Antigonus nearchus, Camptopleura theramenes and Myrinia myris. Numbers of Eunica clytia increased daily. By the 4th day the sandbank was seething with a swarm of at least 500 clytia males, aggressively competing for space. All other butterfly species had abandoned the site, either because the sand had become too dry, or because they had been ousted by the swarming clytia. In the space of 4 days the scene on the riverbank had changed from a multicoloured patchwork of mixed species, into a swirling brown mass of Eunica clytia. A massive storm hit the area the next day so further observations were impossible, but my impression was that a migrating swarm of clytia had passed through, and that their migration had been triggered by the approaching storm.