In weak sunlit conditions males often bask on low herbage, with wings held half open. In overcast but warm conditions they sometimes bask with wings fully outspread. When the weather is warm and sunny, they fly in small colonies from flower to flower.
Both sexes roost overnight on grass heads, facing head-downwards, often in groups of up to 5 individuals. Roosting at the top of the grasses is probably an effective survival strategy, keeping them out of reach of mice and other nocturnal predators.