Andrew Cooper / Aerial view of the Dart Valley and Bel Tor, Dartmoor National Park, Devon, England, UK, October 2015.

Andrew Cooper / Aerial view of the Dart Valley and Bel Tor, Dartmoor National Park, Devon, England, UK, October 2015.

Benoit Stichelbaut / Open 60ft "Groupe Bel" racing, Transatlantic Jacques Vabre race. November, 2007

David Kjaer / Adonis Blue (Polyommatus bellargus) male at rest on ground. Wiltshire, UK, May.

David Kjaer / Adonis Blue (Polyommatus bellargus) male. Wiltshire, UK, May.

Kim Taylor / Adonis Blue Butterfly (Polyommatus bellargus) female. Surrey, UK, July.

David Kjaer / Adonis Blue (Polyommatus bellargus) female butterfly feeding on flower, Wiltshire, UK, September.

David Kjaer / Adonis Blue (Polyommatus bellargus) female butterfly feeding on flower. Wiltshire, UK, September.

Stephen Dalton / Adonis blue butterfly (Polyommatus bellargus) on flowers, UK

David Kjaer / Female Adonis blue butterfly (Polyommatus bellargus) Dorset, England, May

David Kjaer / Adonis blue butterfly (Polyommatus bellargus) pair mating, on flower, Dorset, England, May

David Kjaer / Male Adonis blue butterfly (Polyommatus bellargus) Dorset, England, May