Common blue butterflies (Polyommatus icarus) roosting on grasses in late evening, Vealand Farm, Devon Wildlife Trust, Devon, UK. June.

Common blue butterflies (Polyommatus icarus) roosting on grasses in late evening, Vealand Farm, Devon Wildlife Trust, Devon, UK. June.

Common blue butterflies (Polyommatus icarus) roosting on grasses in late evening, Vealand Farm, Devon Wildlife Trust, Devon, UK. June.