Nick Upton / Yellow Swarming Fly (Thaumatomyia notata) clinging to leaf edge, Wiltshire garden, UK, April.
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Kim Taylor / Yellow Swarming Flies (Thaumatomyia notata) hibernating in an attic, UK.
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Nick Upton / Yellow swarming fly (Thaumatomyia notata) swarm aggregating between window panes, Wiltshire, England, UK. September.
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Nick Upton / Yellow swarming fly (Thaumatomyia notata) swarm aggregating between window panes, Wiltshire, England, UK. September.
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Nick Upton / Close up shot of Yellow swarming fly (Thaumatomyia notata) swarm aggregating between window panes, Wiltshire, England, UK. September.
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Nick Upton / Close up shot of Yellow swarming fly (Thaumatomyia notata) swarm aggregating between window panes, Wiltshire, England, UK. September.
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Nick Upton / Close up shot of Yellow swarming fly (Thaumatomyia notata) swarm aggregating between window panes, Wiltshire, England, UK. September.
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Nick Upton / Close up shot of Yellow swarming fly (Thaumatomyia notata) swarm aggregating between window panes, Wiltshire, England, UK. September.
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Nick Upton / Cluster fly (Pollenia sp.) resting between an old sash window and secondary double glazing with several Yellow swarming flies / Chloropid flies (Thaumatomyia notata) gathering to hibernate in the same...