Adrian Davies / Duke of Burgundy butterfly (Hamearis lucina) Kent, England, UK, June.

David Kjaer / Duke of Burgundy butterfly (Hamearis lucina), Wiltshire, UK, May.

David Kjaer / Duke of Burgundy butterfly (Hamearis lucina) mating, Wiltshire, UK.

Colin Varndell / Duke of Burgundy fritillary (Hamearis lucina) butterfly, UK

Colin Varndell / Duke of Burgundy Fritillary (Hamearis lucina) male butterfly at rest, Dorset, UK, June.

Colin Varndell / Duke of Burgundy Fritillary (Hamearis lucina) male butterfly on leaf, Dorset, UK, May.

David Kjaer / Duke of Burgundy butterfly (Hamearis lucina) at rest on grass stem, with wings closed, Wiltshire, England

David Kjaer / Duke of Burgundy butterfly (Hamearis lucina) at rest on grass stem, with wings open, Wiltshire, England

Robert Thompson / Duke of burgundy fritillary butterfly (Hamearis lucina) Somerset, UK, May

Stephen Dalton / Duke of Burgandy butterflies (Hamearis lucina) mating pair, UK

Silvia Reiche / Duke of Burgundy (Hamearis lucina) butterfly on grass, Saint-Jory-las-Bloux, Dordogne, France

George McCarthy / Duke of Burgundy butterfly {Hamearis lucina} Sussex, UK