Floris van Breugel / Alkali fly (Ephydra hians) underwater in protective air bubble, Mono Lake, California, USA.
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James Dunbar / Close up of a Cryptic mantis (Sibylla pretiosia) catching and eating a fruit fly, UK. Captive.
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James Dunbar / Close up of a Cryptic mantis (Sibylla pretiosia) catching and eating a fruit fly, UK. Captive.
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Steve Downer / Fruit fly (Drosophila melanogaster) close-up of eye.
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Jeff Vanuga / Ephydrid flies (Ephydra sp) that eat microscopic algae and survives during the winter in thermal pools. Biscut Basin, Yellowstone National Park, Wyoming, USA, January.
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Marie Read / California Gull (Larus californicus), foraging for alkali flies (Ephydra hians) by running through swarm snapping its bill, on the shore at Mono Lake, California, USA. Digital frame expansion.
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Konrad Wothe / Fruit fly (Drosophila melanogaster) male, Germany, August.
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Jeff Foott / Ephydrid fly on algae mat, hot spring eaten by the wolf spider in hot spring run off. Yellowstone National Park, USA, July.
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Rod Williams / Snail-killing fly (Tetanocera Sp) Sutcliffe Park Nature Reserve, Eltham, London, England, UK. August.
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Rod Williams / Black scavenger fly (Sepsis punctum) feeding on minute food particles off bramble leaf, Brockley Cemetery, Lewisham, London, England, UK. October.
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Floris van Breugel / Mono Lake, with the abundant Alkali flies (Ephydra hians) Mono Lake, California, USA. September.
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Floris van Breugel / Alkali flies (Ephydra hians) taking flight. Mono Lake, California, USA. July.