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    • Siphlonurus
  • (18)
Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
01531474
Jan Hamrsky / Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
Summer mayfly nymphs (Siphlonurus lacustris), Europe, May. Controlled conditions.
01531470
Jan Hamrsky / Summer mayfly nymphs (Siphlonurus lacustris), Europe, May. Controlled conditions.
Summer mayfly nymph (Siphlonurus lacustris), underwater, Europe, June, controlled conditions
01608841
Jan Hamrsky / Summer mayfly nymph (Siphlonurus lacustris), underwater, Europe, June, controlled conditions
Summer mayfly nymphs (Siphlonurus lacustris) and Flathead mayfly nymph (Electrogena sp.), underwater, Europe, June, controlled conditions
01608840
Jan Hamrsky / Summer mayfly nymphs (Siphlonurus lacustris) and Flathead mayfly nymph (Electrogena sp.), underwater, Europe, June, controlled conditions
Summer mayfly nymph (Siphlonurus lacustris), underwater, Europe, June, controlled conditions
01608839
Jan Hamrsky / Summer mayfly nymph (Siphlonurus lacustris), underwater, Europe, June, controlled conditions
Summer mayfly (Siphlonurus lacustris) in flight, River Usk, Wales, UK, May.
01593616
Phil Savoie / Summer mayfly (Siphlonurus lacustris) in flight, River Usk, Wales, UK, May.
Summer mayfly (Siphlonurus lacustris) in flight, River Usk, Wales, UK, May.
01593615
Phil Savoie / Summer mayfly (Siphlonurus lacustris) in flight, River Usk, Wales, UK, May.
Summer mayfly (Siphlonurus lacustris) in flight, River Usk, Wales, UK, May.
01593614
Phil Savoie / Summer mayfly (Siphlonurus lacustris) in flight, River Usk, Wales, UK, May.
Summer mayfly (Siphlonurus lacustris) male, River Usk, Wales, UK, March.
01593613
Phil Savoie / Summer mayfly (Siphlonurus lacustris) male, River Usk, Wales, UK, March.
Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May
01531477
Jan Hamrsky / Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May
Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
01531471
Jan Hamrsky / Summer mayfly nymph (Siphlonurus lacustris), Europe, May. Controlled conditions.
Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May
01531476
Jan Hamrsky / Summer mayfly (Siphlonurus lacustris) adult emerging, Europe, May