Wild Wonders of Europe / Maitland / Clouded yellow butterfly (Colias croceus) feeding on Vipers bugloss (Echium vulgare) Lagadin region, Lake Ohrid, Galicica National Park, Macedonia, June 2009

Kim Taylor / Clouded yellow butterfly {Colias croceus} female feeding on scabious UK.

Kim Taylor / Clouded yellow butterfly {Colias croceus} female feeding on yarrow UK.

Edwin Giesbers / Clouded yellow butterfly (Colias crocea) nectaring on Mayweed (Anthemis sp) flower. Cyprus. April.

Loic Poidevin / Dark clouded yellow butterfly (Coleas crocea) on flower, Vendee, France, October.

Lorraine Bennery / Clouded yellow butterfly (Colias croceus), Isere, France, May.

Ingo Arndt / Yellow-throated Longclaw (Macronyx croceus) adult singing, Masai Mara game Reserve, Kenya

Hanne & Jens Eriksen / Clouded yellow butterfly (Colias croceus) May, Oman

Nick Upton / Clouded yellow butterfly (Colias croceus) nectaring on a Field scabious flower (Knautia arvensis), Picos de Europa mountains, Spain, August.

MYN / Dirk Funhoff / Clouded yellow butterfly (Colias croceus), Lorsch, Hessen, Germany. Meetyourneighbours.net project.

MYN / Dirk Funhoff / Clouded yellow butterfly (Colias croceus) pupa, Lorsch, Hessen, Germany. Meetyourneighbours.net project

MYN / Dirk Funhoff / Clouded yellow butterfly (Colias croceus), Lorsch, Hessen, Germany. Meetyourneighbours.net project

MYN / Dirk Funhoff / Clouded yellow butterfly (Colias croceus), Lorsch, Hessen, Germany. June. Meetyourneighbours.net project

Oliver Geiseler/ BIA / Yellow-throated Longclaw (Macronyx croceus) calling, Lake Mburo National Park, Uganda

Ingo Arndt / Yellow-throated Longclaw (Macronyx croceus) calling, Masai Mara, Kenya

Constantinos Petrinos / Yellow throated longclaw (Macronyx croceus) perched on branch, Masai Mara National Reserve, Rift Valley Province, Kenya.

Constantinos Petrinos / Yellow throated longclaw (Macronyx croceus) perched on branch, Masai Mara National Reserve, Rift Valley Province, Kenya.

Constantinos Petrinos / Yellow throated longclaw (Macronyx croceus) perched on branch, Masai Mara National Reserve, Rift Valley Province, Kenya.

Constantinos Petrinos / Yellow throated longclaw (Macronyx croceus) singing, perched on branch, Masai Mara National Reserve, Rift Valley Province, Kenya.

Loic Poidevin / Dark clouded yellow butterfly (Colias croceus) on flower, Vendee, France, July.

Ross Hoddinott / Clouded yellow butterfly (Colias crocea) on Devil's bit scabious (Succisa pratensis), Dunsdon Nature Reserve, Devon, UK. August 2014.

Andy Sands / Clouded yellow butterfly (Colias crocea) feeding on Devil's bit scabious (Succisa pratensis), Hertfordshire, England, UK, September

Andy Sands / Clouded yellow butterfly (Colias crocea) resting on leaf, Hertfordshire, England, UK, September

Silvia Reiche / Clouded Yellow (Colias croceus) butterfly, Netherlands

Graeme Guy / Yellow-throated Longclaw (Macronyx croceus) male, Masai Mara, Kenya

Colin Varndell / Clouded yellow butterfly (Colias croceus) on Fleabane. Dorset, UK, August.

Richard Du Toit / Yellow-throated Longclaw (Macronyx croceus), KwaZulu-Natal, South Africa

Solvin Zankl / Yellow nipple sponges (Polymastia croceus) Poor Knights Islands, Marine Reserve, New Zealand, South Pacific Ocean, July.

Solvin Zankl / Yellow nipple sponges (Polymastia croceus) on sea bed, Poor Knights Islands, Marine Reserve, North Island, New Zealand, South Pacific Ocean, July.

Nick Upton / Clouded yellow butterfly (Colias croceus) feeding on Headed thyme / Wild thyme flowers (Thymus capitatus), Crete, Greece, May.

Rod Williams / Male Clouded yellow butterfly (Colias croceus) resting on chalky soil, Hutchinson's Bank, New Addington, London, UK, August.

Robert Thompson / Clouded yellow butterfly (Colias croceus / coocea) on flower, Pyrenees National Park, France, June.

Loic Poidevin / Dark Clouded Yellow butterfly (Colias crocea) on alfalfa (Medicago sativa) flower, Vendée, France, July.

Kim Taylor / Clouded Yellow Butterfly (Colias croceus) male feeding on yellow thistle, Croatia, June

Kim Taylor / Clouded Yellow Butterfly (Colias croceus) mating pair. Croatia, June

Benjamin Barthelemy / Common clouded yellow butterfly (Colias Crocea), Reserve Naturelle de la Vallee des Cailles, Eure-et-Loir, France, July.

Benjamin Barthelemy / Common clouded yellow butterfly (Colias Crocea), Reserve Naturelle de la Vallee des Cailles, Eure-et-Loir, France, July.

Ann & Steve Toon / Yellow throated longclaw (Macronynx croceus) Lake Nakuru National Park, Kenya, September

Anup Shah / Yellow-throated Longclaw perched in a tree (Macronyx croceus). Masai Mara National Reserve, Kenya. February

Anup Shah / Yellow-throated Longclaw (Macronyx croceus) perching on log. Masai Mara National Reserve, Kenya. March

Anup Shah / Yellow-throated Longclaw (Macronyx croceus) sitting on vegetation. Masai Mara National Reserve, Kenya. March

Suzi Eszterhas / Yellow-throated Longclaw (Macronyx croceus), Masai Mara National Reserve, Kenya

Stephen Dalton / Clouded yellow butterfly (Colius croceus) feeding on Knapweed flower, UK

Stephen Dalton / Clouded yellow butterfly (Colius croceus) feeding on Knapweed flower, UK

Mary McDonald / Yellow-throated Longclaw {Macronyx croceus} Masai Mara GR, Kenya.

Silvia Reiche / Clouded Yellow (Colias croceus) butterfly on ground, St. Nazaire le Desert, France

PREMAPHOTOS / Clouded yellow butterfly (Colias croceus) showing its yellow compound eyes and proboscis probing the flower, UK

Bernard Castelein / Yellow-throated longclaw (Macronyx croceus) perched on branch, Serengeti NP, Tanzania

Mike Wilkes / Yellow throated longclaw {Macronyx croceus} singing, Masia Mara, Kenya

Kim Taylor / Clouded yellow butterfly {Colias croceus} female feeding on scabious UK.

Kim Taylor / Clouded Yellow Butterfly and Fleabane, UK, captive, digital composite (C. croceus)

Hermann Brehm / Yellow throated longclaw on ground, Serengeti NP Tanzania

Juergen & Christine Sohns / Yellow-throated Longclaw (Macronyx croceus) calling, Addo National Park, South Africa

Kim Taylor / Clouded yellow butterfly (Colias croceus) pupa, Surrey, England

Silvia Reiche / Clouded Yellow (Colias croceus) butterfly on stalk, St. Nazaire le Desert, France

Silvia Reiche / Clouded Yellow (Colias croceus) butterfly on stalk, St. Nazaire le Desert, France

Kim Taylor / Wasp (Vespula sp.) worker flies past a Common fleabane (Pulicaria dysenterica) and then spots a Clouded yellow butterfly (Colias croceus) which it perceives as potential prey. The wasp moves round the...

Pascal Pittorino / Clouded yellow butterfly (Colias croceus) feeding on a cosmos flower (Cosmos bipinnatus) in a garden, Grands Causses Regional Natural Park, Lozere, France, October

Konrad Wothe / Clouded yellow butterfly (Colias crocera) in flight, Upper Bavaria, Germany, August.

Konrad Wothe / Clouded yellow butterfly (Colias crocea) Upper Bavaria, Germany, August.

Konrad Wothe / Clouded yellow butterfly (Colias crocea) in flight, Upper Bavaria, Germany, August.

Andy Sands / Clouded yellow butterfly (Colias crocea) on lavender, Hertfordshire, England, UK, September - Focus Stacked Image - Captive

Andy Sands / Clouded yellow butterfly (Colias crocea) pupa on plant stem, Hertfordshire, England, UK, September - Focus Stacked Image - Captive

Andy Sands / Clouded yellow butterfly (Colias crocea) covered in dew early morning, Hertfordshire, England, UK, September - Focus Stacked Image

Robert Pickett / Clouded Yellow Butterfly male (Colias croceus) in flight flying over Broom flowers, UK