A Pictorial Guide to British Ephemeroptera
Ephemeroptera, also known as mayflies or up-wing flies, can be seen emerging from the water, resting on nearby vegetation and most commonly 'dancing' above head height, along the shores if many still waters and rivers. This guide provides introductory picture-based keys and species accounts for both the adults and nymphs of the 51 species of Ephemeroptera that have been recorded in the British Isles.
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fsc aidgap