Phil Savoie / Exoskeletons of moulting nymphs of Giant stonefly / salmonfly (Pteronarcys californica) beside river, 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.
01593581
Phil Savoie / Exoskeletons of moulting nymphs of Giant stonefly / salmonfly (Pteronarcys californica) on riverside,Yellowstone National Park, Montana, USA. July.