Guy Edwardes / Marbled white (Melanagria galathea), two butterflies on Pyramidal orchid (Anacamptis pyramidalis). Badbury Rings, Wimborne Minster, Dorset, England, UK. June.

Andy Sands / Newly emerged Marbled white butterfly (Melanargia galathea) on Bee orchid (Ophrys apifera), Bedfordshire, England, UK. June

Ross Hoddinott / 2020VISION / Marsh fritillary butterfly {Euphydrayas aurinia} on Spotted heath orchid (Dactylorhiza maculata), Dunsdon, near Holsworthy, Devon, UK. June

Ross Hoddinott / Marsh fritillary butterfly (Euphydrayas aurinia) on Spotted heath orchid (Dactylorhiza maculata), Volehouse Moor, Devon, UK. June.

Michael Hutchinson / Pull focus shot from a Southern marsh-orchid (Dactylorhiza praetermissa) to a pair of Marsh fritillary butterflies (Euphydryas aurinia) mating, Devon, England, UK, June.

Ross Hoddinott / Marsh fritillary butterfly (Euphydrayas aurinia) on Spotted heath orchid (Dactylorhiza maculata), Dunsdon, near Holsworthy, Devon, UK. June 2017.

Alex Hyde / Alpine heath (Coenonympha gardetta) resting on Fragrant orchid (Gymnadenia conopsea) Nordtirol, Austrian Alps, July.

Paul Harcourt Davies / Pink butterfly orchid (Orchis papilionacea var grandiflora ) Peloponnese, Greece, March.

Paul Hobson / Greater butterfly orchids (Platanthera chlorantha) flower in meadow, wide angle view of habitat, Derbyshire, England, UK. July.

Bernard Castelein / Common Blue (Polyommatus icarus) on Heath spotted orchid (Dactylorhiza maculata) Brasschaat, Belgium, May.

Pascal Pittorino / Pink butterfly orchid (Anacamptis papilionacea) covered in water droplets after rain, Calanches de Piana, Parc Naturel Regional de Corse / Corsica Natural Regional Park, Corsica Island, France, April

Paul Harcourt Davies / Pink butterfly orchid (Anacamptis papilionacea) near Ruggiano, Gargano, Italy, April.