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    • Giant Salmonfly
  • (3)
Exoskeletons of moulting nymphs of  Giant stonefly  / salmonfly (Pteronarcys californica) beside river, Yellowstone National Park, Montana, USA. July.
01593583
Phil Savoie / Exoskeletons of moulting nymphs of Giant stonefly / salmonfly (Pteronarcys californica) beside river, Yellowstone National Park, Montana, USA. July.
Exoskeletons of moulting nymphs of  Freshwater giant stonefly  (Pteronarcys californica) on riverside,Yellowstone National Park, Montana, USA. July.
01593582
Phil Savoie / Exoskeletons of moulting nymphs of Freshwater giant stonefly (Pteronarcys californica) on riverside,Yellowstone National Park, Montana, USA. July.
Exoskeletons of moulting nymphs of  Giant stonefly / salmonfly   (Pteronarcys californica) on riverside,Yellowstone National Park, Montana, USA. July.
01593581
Phil Savoie / Exoskeletons of moulting nymphs of Giant stonefly / salmonfly (Pteronarcys californica) on riverside,Yellowstone National Park, Montana, USA. July.