Issue |
Ann. Limnol. - Int. J. Lim.
Volume 35, Number 4, December 1999
|
|
---|---|---|
Page(s) | 245 - 256 | |
DOI | https://doi.org/10.1051/limn/1999033 | |
Published online | 15 March 2009 |
Taxonomy and phenetic relationships of Electrogena affinis (Eaton, 1883) (Ephemeroptera : Heptageniidae)
Taxonomie et relations phénétiques d'Electrogena affinis (Eaton, 1883) (Ephemeroptera : Heptageniidae)
1
Dipartimento di Zoologia, Università di Napoli Federico II, via Mezzocannone 8, I-80134 Napoli, Italy
2
Institut für Zoologie, Universität Mainz, Saarstr. 21, D-55099 Mainz, Germany
3
Department of Hydrobiology, Institute of Environmental Biology, Jagiellonian University, Oleandry 2a, 30-063 Kraków, Poland
Electrogena affinis (Eaton, 1883) is redescribed in all developmental stages. Larvae were analysed, in comparison with other congeneric european species, by a standard set of diagnostic characters which, in previous works, proved to be very useful in the taxonomy of Electrogena. The status of E. fascioculata (Sowa, 1974) is discussed and the synonymy E. fascioculata = E. affinis is stated. Finally, phenetic relationships between E. affinis and some other related european species are represented by cluster analysis, on the basis of quantitative characters of larvae.
Résumé
Electrogena affinis est redécrite à tous les stades du cycle de développement. Les larves ont été étudiées et comparées aux autres espèces européennes du même genre sur des caractères de diagnose standard qui, dans des précédents travaux, se sont montrés très utiles pour la taxonomie d'Electrogena. Le statut d'E. fascioculata est discuté et la synonymie E. fascioculata = E. affinis est établie. Finalement, les liaisons phénétiques entre E. affinis et d'autres espèces européennes voisines sont examinées par une analyse de groupes sur la base de caractères quantitatifs des larves.
Key words: ephemeroptera / heptageniidae / electrogena / numerical taxonomy
Mots clés : ephemeroptera / heptageniidae / electrogena / taxonomie numérique
© Université Paul Sabatier, 1999
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