Jussi Murtosaari / Peacock butterfly (Inachis io) newly emerged on asters, Jyvaskyla, Finland, August.

Alex Hyde / Peacock butterfly (Inachis io) feeding on Goat Willow catkins (Salix caprea), an important food source for pollinators in early spring. Peak District National Park, UK. April.

Silvia Reiche / Peacock Butterfly (Inachis io), Netherlands

Silvia Reiche / Peacock Butterfly (Inachis io), Netherlands

Alex Hyde / Peacock butterfly (Inachis io) basking with open wings on a white background in mobile field studio. Peak District National Park, Derbyshire, UK. August

Jussi Murtosaari / Peacock Butterfly (Inachis io) closeup of wings, South Karelia, southern Finland, September.

Paul Harcourt Davies,Paul Harcourt Davies / Peacock butterfly (Inachis io) resting against a wood shed window, Orvieto, Italy, June

Silvia Reiche / Peacock Butterfly (Inachis io) on flower, Hoogeloon, Noord-Brabant, Netherlands

Thomas Marent / Peacock Butterfly (Inachis io) on flowers, Switzerland

Nigel Cattlin / Peacock butterfly (Inachis io) last instar caterpillar feeding on Stinging nettle (Urtica dioica) food plant.

Robert Thompson / Peacock (Aglais io) Brackagh Moss NNR, Portadown, Co. Armagh, Northern Ireland. July

Martin Grimm/ BIA / Peacock Butterfly (Inachis io), Baden-Wurttemberg, Germany