Ernie Janes / Small white butterfly (Pieris rapae) and Small tortoiseshell butterfly (Aglais urticae) in flight, Norfolk, England, UK, June.

Ernie Janes / Small Tortoiseshell Butterfly (Aglais urticae) feeding on scabious flowers in hay meadow, Wensum Valley, Norfolk, England, UK, July.

Konrad Wothe / Small tortoiseshell butterfly (Aglais urtica) in flight, with flower, Bavaria, Germany.

Gary K. Smith / Small Tortoiseshell Butterfly (Aglais urticae) feeding on Sea Holly flowers (Eryngium maritimum) on coastal dunes, North Norfolk, England, August.

Ernie Janes / Small Tortoisehell Butterfly (Aglais urticae) on cone flowers (Echinacea) in garden with greenhouse in background England, UK, August.

Mark Hamblin / 2020VISION / Small tortoiseshell (Aglais urticae) feeding on buddleia flowers, Carrbridge, Inverness-shire, Scotland, UK, August. Did you know? Tortoiseshell butterfly caterpillars feed on nettles, and live in gro...

Alex Hyde / Peacock butterfly (Inachis io) and Small tortoiseshell butterflies (Aglais urticae) feeding on Buddleia flowers (Buddleia davidii), Derbyshire, UK, September.

Chris Packham / Wing of Small tortoiseshell butterfly {Aglais urticae} caught in spider's web, UK

Kim Taylor / Herald Moths and Small Tortoiseshell Butterfly (Aglais urticae) hibernating, UK.

Rolf Nussbaumer / Small tortoiseshell butterfly emerging from pupa {Aglais urticae} Switzerland.

WILLIAM OSBORN / Small tortoiseshell butterfly just emerged from pupa (Aglais urticae) UK

Konrad Wothe / Small Tortoiseshell (Aglais urticae) butterfly flying, Bavaria, Germany

Peter Schwarz/ BIA / Small Tortoiseshell (Aglais urticae) butterfly, Hesse, Germany

Duncan Usher / Small Tortoiseshell (Aglais urticae) butterfly on flower, Lower Saxony, Germany

Silvia Reiche / Small Tortoiseshell (Aglais urticae) butterfly on Red Campion (Silene dioica), Hoogeloon, Noord-Brabant, Netherlands

Alex Hyde / Small tortoiseshell butterfly (Aglais urticae) photographed on a white background in mobile field studio. Peak District National Park, Derbyshire, UK. September. Focus stacked image.

Alan Williams / Small tortoiseshell butterflies (Aglais urticae) on Wallflower (Erysimum) in garden, Cheshire, UK, July.

Ross Hoddinott / RF - Small tortoiseshell butterfly (Aglais urticae) nectaring on Verbena (Verbena sp). Cornwall, England, UK. September. (This image may be licensed either as rights managed or royalty free.)

Nick Upton / Small tortoiseshell butterfly (Aglais urticae) nectaring on a Small scabious (Scabiosa columbaria) flower on a chalk grassland slope, Bath and Northeast Somerset, UK, July.

Jussi Murtosaari / Small tortoiseshell butterfly (Aglais urticae) feeding on Birch (Betula sp) sap. Jyvaskyla, Finland. April.

Chris Mattison / Small Tortoiseshell butterfly, (Aglais urticae), larva or caterpillar, May. Cleddon, Monmouthshire.

Chris Mattison / Small Tortoiseshell butterfly, (Aglais urticae), pupa suspended from Stinging Nettle leaf, Cleddon, Monmouthshire, Wales, UK, May.

Chris Mattison / Small Tortoiseshell butterfly, (Aglais urticae), pupa suspended from Stinging Nettle leaf, Cleddon, Monmouthshire, Wales, UK. May.

Colin Varndell / Small tortoiseshell butterfly (Aglais urticae) on Teasel flower head, Dorset, UK. August.

Ernie Janes / RF - Small tortoiseshell butterfly (Aglais urticae) sequence of flight to flowers in hay meadow Wensum Valley, Norfolk, UK (This image may be licensed either as rights managed or royalty free.)

Ernie Janes / RF - Small tortoiseshell butterfly (Aglais urticae) flying to flower, Wensum Valley, Norfolk, UK (This image may be licensed either as rights managed or royalty free.)

Ernie Janes / Small tortoiseshell butterfly (Aglais urticae) feeding on mallow flowers in hay meadow Wensum Valley, Norfolk, England, UK, July.

Ernie Janes / Small Tortoiseshell Butterfly (Aglais urticae) feeding on Sea holly (Eryngiums maritimum) Thornham Dunes, Norfolk, England, UK. August

Will Watson / Small tortoiseshell butterfly (Aglais urticae) on Schemia khasiana, Annesley Garden, Castlewellan Forest Park, County Down, Northern Ireland. October.

Erlend Haarberg / Small tortoiseshell (Aglais urticae), Innlandet, Norway, July.

Will Watson / Small tortoiseshell butterfly (Aglais urticae) on Tubular water dropwort (Oenanthe fistulosa) in rush pasture, Herefordshire, England, July.

Ernie Janes / Small tortoiseshell (Aglais urticae) butterfly flying amongst Scabious (Knautia arvensis) in hay meadow. Wensum Valley, Norfolk, England, UK. July.

Andy Sands / Small tortoishell butterfly (Aglais urticae) chrysalis, Hertfordshire, England, UK, July - Focus Stacked

Konrad Wothe / Slow motion clip of a Small tortoiseshell butterfly (Aglais urticae) nectaring on a Marsh gladiolus (Gladiolus palustris), Bavaria, Germany, July.

Rod Williams / Small tortoiseshell larvae (Aglais urticae) on nettles, London, England, UK, July.

Nick Upton / Small tortoiseshell butterfly (Aglais urticae) portrait on Umbel flowers, Wiltshire, UK, August.

Konrad Wothe / Tortoiseshell butterfly (Aglais urticae) on pussy willow (Salix caprea) flower, Bavaria, Germany, March.

Gary K. Smith / Tortoiseshell butterfly (Aglais urticae) feeding from scabious flower, Norfolk, England, UK.

Sue Daly / Small tortoiseshell butterfly (Aglais urticae) on buddleia, Sark, British Channel Islands, August.

Ernie Janes / Small tortoiseshell butterfly (Aglais urticae) feeding on Scabious flowers, in hay meadow Wensum Valley, Norfolk, England, UK. July.

Ernie Janes / Small tortoiseshell butterfly (Aglais urticae) feeding on Scabious (Knautia arvensis) flowers, in hay meadow Wensum Valley, Norfolk, England, UK. July.

Ernie Janes / Small tortoiseshell butterfly (Aglais urticae) feeding on garden daises. England, UK. July.

Lorraine Bennery / Small tortoiseshell butterfly (Aglais urticae) pupa, Hautes-Alpes, France, July.

Lorraine Bennery / Small tortoiseshell butterfly (Aglais urticae), Vosges Balloons Regional Park, France, August.

Russell Cooper / Small Tortoiseshell butterfly (Aglais urticae) eggs on the underside of a nettle leaf, Southwest London, UK, July

Lorraine Bennery / Small tortoiseshell butterfly (Aglais urticae) chrysalis, Regional Natural Park of the Pyrenees Ariégeoises, France, July.

Dave Bevan / Small tortoiseshell (Aglais urticae) nectaring on Sedum (Sedum), Carmarthenshire, Wales, UK. September.

Dave Bevan / Painted lady (Vanessa cardui) and Small tortoiseshell (Aglais urticae) nectaring on Sedum (Sedum), Carmarthenshire, Wales, UK. September.