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A REVISION OF THE NEARCTIC AMELETUS MAYFLIES BASED ON ADULT MALES, WITH DESCRIPTIONS OF SEVEN NEW SPECIES (EPHEMEROPTERA: AMELETIDAE)

Published online by Cambridge University Press:  31 May 2012

Jacek Zloty
Affiliation:
Division of Ecology, Department of Biological Sciences, The University of Calgary, Calgary, Alberta, Canada T2N 1N4

Abstract

A systematic revision of North American species of the genus Ameletus, excluding parthenogenetic species, is presented. Seven new species are described (A. andersoni, A. bellulus, A. doddsianus, A. edmundsi, A. majusculus, A. pritchardi, and A. tolae), separate keys are given to western and eastern species, annotated accounts of all 30 presently recognized bisexual species are provided, taxonomic characters are illustrated, and distribution data are presented for all species. The following nomenclatural changes are proposed: Ameletus aequivocus is considered a junior synonym of A. sparsatus; A. alticolus and A. celeroides junior synonyms of A. celer; A. connectina and A. connectus junior synonyms of A. velox; A. facilis a junior synonym of A. vancouverensis; A. monta a junior synonym of A. similior; A. querulus a junior synonym of A. shepherdi. The specific status of A. tuberculatus is questioned and it is provisionally considered to be the same as A. celer.

Résumé

On trouvera ici une révision systématique des espèces nord-américaines du genre Ameletus, à l’exception des espèces parfhénogénétiques. Sept nouvelles espèces sont décrites (A. andersoni, A. bellulus, A. doddsianus, A. edmundsi, A. majusculus, A. pritchardi et A. tolae) et des clés distinctes permettront de reconnaître les espèces de l’est; on trouvera aussi des descriptions commentées des 30 espèces bisexuées actuellement reconnues, des illustrations de leurs caractéristiques diagnostiques et des données sur leur répartition. Les changements taxonomiques suivants sont proposés : Ameletus aequivocus devient synonyme d’A. sparsatus; A. alticolus et A. celeroides deviennent synonymes d’A. celer; A. connectina et A. connectus deviennent synonymes d’A. velox; A. facilis devient synonyme d’A. vancouverensis; A. monta devient synonyme d’A. similior; A. querulus devient synonyme d’A. shepherdi. Le statut taxonomique d’A. tuberculatus est mis en doute et l’espèce est considérée provisoirement comme synonyme d’A. celer.

[Traduit par la Rédaction]

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1996

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