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.

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

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

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

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.

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