Guy Edwardes / Stone fly (Leuctra fusca) on Alternate-leaved Golden Saxifrage (Chrysosplenium alternifolium) Zelske Jame, Skocjan Karst Gorge, Rakov Skocjan, Slovenia, April
Jan Hamrsky / Flathead mayfly nymph (Electrogena sp.) and Stonefly nymph (Isoperla sp.), underwater, Europe, June, controlled conditions
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Phil Savoie / Exoskeletons of moulting nymphs of Giant stonefly / salmonfly (Pteronarcys californica) beside river, Yellowstone National Park, Montana, USA. July.
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Phil Savoie / Exoskeletons of moulting nymphs of Freshwater giant stonefly (Pteronarcys californica) on riverside,Yellowstone National Park, Montana, USA. July.
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Phil Savoie / Exoskeletons of moulting nymphs of Giant stonefly / salmonfly (Pteronarcys californica) on riverside,Yellowstone National Park, Montana, USA. July.