BioInfo (UK)

Harker, J., 1989


An introductory chapter on Natural History is followed by flow-chart, dichotomous and tabular keys to species (mostly) of nymphs, species of male imagos and genera of female imagos. The next chapter describes techniques and approaches to original work.

Appendix 1 gives a checklist with fishermen's names; these latter should be used with caution as a professional fly tier tells me that fishermans flies no longer represent real insects.

Appendix 2 describes distribution and swarming behaviour

Publisher The Richmond Publishing Co. Ltd
Volume 13
Pages 56
ISBN 0 85546 274 4
Comments and Corrigenda The male of Cloeon dipterum is incorrectly illustrated as having a yellow-brown band along the costal margin of the forewing (plate 1). Only the female has this; the male wings are hyaline.

The key to 3-tailed female imagines (p37) is said to be improved by swapping couplets 5 and 6 (ie couplet 6 becomes 5 with 2nd alternative leading to 6; couplet 5 becomes 6 with first alternative leading to 7). There is a downloadable replacement page.
Coverage All the then known British species. Female imagos are identified only to genus, but male imagos are taken to species and nymphs mostly so.
Illustrations Line drawings beside text, 4 plates of colour paintings in the centre.
Identify Under a Stereo Microscope.
Specimen Prep. Nymphs living or in spirit, adults living or pinned.
Difficulty Relatively straightforward, although some are more difficult. Lost tail filaments and hard-to-see hindwings are the two main problems.

Malcolm Storey

Taxonomic Scope

EPHEMEROPTERA (mayflies, upwinged flies) Identification Checklist Current
EPHEMEROPTERA (mayflies, upwinged flies) Identification Current
Creative Commons Licence
Unless otherwise expressly stated, all original material on the BioInfo website by Malcolm Storey is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.0 UK: England & Wales Licence.