British Insects: the Genera of Ephemeroptera
Imago. The compound eyes rounded.
Wings unspotted. Fore-wings with veins M1 and Cu1 strongly strongly diverging basally; with R5 and R4 joined basally. Hind-wings present. Hind tarsi with 4 moveable segments, or with 2–3 moveable segments.
The abdomen with three tails.
Nymph. Gills all densely fringed with filaments on both sides.
Classification. Superfamily Ephemeroidea. Family Potamanthidae.
British representation. 1 species (P. luteus).
To view illustrations with legends giving names in current use, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa, as well as source references and other relevant material.
Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. British insects: the genera of Ephemeroptera. Version: 29th December 2011. http://delta-intkey.com’.