Colin Varndell / Female Downy Emerald dragonfly (Cordulia aenia) at rest on flowering Gorse (Ulex europaeus) Higher Hyde Heath, Dorset, UK. April
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Robert Thompson / Close up of Northern emerald dragonfly (Somatochlora arctica) resting on flower, Killarney National Park, County Kerry, Republic of Ireland, July
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Robert Thompson / Downy emerald dragonfly (Cordulia aenea) on fern, Killarney National Park, County Kerry, Republic of Ireland, July
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Stephen Dalton / Emerald damselfly (Lestes sponsa) in flight, UK
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Stephen Dalton / Downy emerald dragonfly {Cordulia aenea} in flight, UK
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Steve Knell / Downy emerald dragonfly (Cordulia aenea) on lichen-covered twig, UK
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Steve Knell / Downy emerald dragonfly (Cordulia aenea) on lichen-covered twig, UK
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Steve Knell / Downy emerald dragonfly (Cordulia aenea) on lichen-covered twig, UK
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Steve Knell / Downy emerald dragonfly (Cordulia aenea) on lichen-covered twig, UK