Duncan Mcewan / Dark Green Fritillary (Mesoacidalia aglaja) Scotland , UK

Paul Hobson / Dark green fritillary butterfly {Argynnis aglaja} at rest on Meadow cranesbill flower, Peak District, UK

Paul Hobson / Dark green fritillary butterfly {Argynnis / Mesoacidalia aglaja} resting on Northern hawkbeard, Peak District, UK.

Paul Hobson / Dark green fritillary butterfly {Argynnis aglaja} at rest on Meadow cranesbill, Peak District, Derbyshire, UK.

Duncan Mcewan / Dark Green Fritillary (Mesoacidalia aglaja) Scotland

Kim Taylor / Dark Green Fritillary (Argynnis aglaja) female on knapweed. Dorset, UK.

Duncan Mcewan / Dark green fritillary (Mesoacidalia aglaja) showing underside of wings. Scotland, UK, Europe

George McCarthy / Dark green fritillary butterfly at thistle flower, North downs Sussex, UK

Steve Knell / Dark green fritillary on thistle {Argynnis aglaja} UK

Steve Knell / Dark green fritillary on thistle {Argynnis aglaja} UK

Robin Chittenden / Dark green fritillary butterfly (Argynnis aglaja) on stem, Zemplen Hills, Hungary, July

Duncan Mcewan / Dark Green Fritillary butterfly close-up showing coiled proboscis {Mesoacidalia aglaja}