Kim Taylor / Anglers / Green Drake Mayfly (Ephemera danica) males flying at sunset. digital composite, Surrey, UK
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Nick Upton / Furrow Orb weaver spider (Larinioides cornutus) near a Green drake mayfly (Ephemera danica) it has caught and wrapped in its riverside web, Lacock, Wiltshire, UK, May.
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Nick Upton / Furrow Orb weaver spider (Larinioides cornutus) wrapping a Green drake mayfly (Ephemera danica) caught in its riverside web, Lacock, Wiltshire, UK, May.
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Jan Hamrsky / Common burrowing mayfly nymph (Ephemera danica), Eupope, June, controlled conditions
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Jan Hamrsky / Common burrowing mayfly nymph (Ephemera danica), Eupope, June, controlled conditions
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Phil Savoie / Mayfly (Ephemera danica) male, River Usk, Monmouthshire, Wales, UK, May.
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Phil Savoie / Mayfly (Ephemera danica) male, River Usk, Monmouthshire, Wales, UK, May.
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Phil Savoie / Mayfly (Ephemera danica) male, River Usk, Monmouthshire, Wales, UK, May.
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Phil Savoie / Mayfly (Ephemera danica) male, River Usk, Monmouthshire, Wales, UK, May.
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Adrian Davies / Mayfly (Ephemera danica) on nettle, Surrey, England, UK, May.
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Nick Upton / Green drake mayfly (Ephemera danica), newly emerged on a riverside grass stem, Wiltshire, UK, May.
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Andy Sands / Mayfly (Ephemera danica) just emerged at waters surface in dun form, the first of two winged adult instars or developmental stages, Hertfordshire, England, UK, June.