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NEW BAETIDAE FROM THE SOUTHWESTERN UNITED STATES AND NORTHERN MEXICO (EPHEMEROPTERA: INSECTA), WITH NOTES

Published online by Cambridge University Press:  31 May 2012

Richard K. Allen
Affiliation:
22021 Jonesport Lane, Huntington Beach, California, USA92646
Chad M. Murvosh*
Affiliation:
Department of Biological Sciences, University of Nevada, Las Vegas, Nevada, USA89154
*
1Author to whom reprint request should be addressed.

Abstract

Collections of Baetis Leach, Baetodes Needham and Murphy, and Dactylobaetis Traver and Edmunds from the southwestern United States and northern Mexico included new species and new distribution records. The nymphal stages of Baetis sonora n.sp. and Dactylobaetis sinaloa n.sp. are described and figured. Species of Baetis nymphs that were given informal epithets, even though they were described, keyed, and their taxonomic characters figured, are named, or tentatively associated with a described adult. Baetis sp. “A” Morihara and McCafferty is tentatively associated as the nymphal stage of B. adonis Traver, Baetis sp. “B” Morihara and McCafferty is named B. libos, and Baetis sp. “C” Morihara and McCafferty is named B. notos. New collection records extend the known distributional limits of Baetis insignificans McDunnough, Baetodes edmundsi Koss, B. fuscipes Cohen and Allen, and Dactylobaetis mexicanus Traver and Edmunds.

Résumé

Des collections de Baetis Leach, Baetodes Needham et Murphy, et Dactylobaetis Traver et Edmunds, provenant du sud-ouest des USA et du nord du Mexique, contenaient des nouvelles espèces et des nouvelles mentions. On a décrit et illustré les stades larvaires de Baetis sonora n.sp. et Dactylobaetis sinaloa n.sp. On a nommé, ou tenté d’associer à une forme adulte déjà décrite, des espèces de larves de Baetis qui avaient reçu des épithètes non formelles, bien qu’elles avaient déjà été décrites, fait l’objet de clés, et été illustrées dans leurs détails taxonomiques. Baetis sp. “A” Morihara et McCafferty est assimilée à la forme larvaire de B. adonis Traver, Baetis sp. “B” Morihara et McCafferty est nommée B. libos, et Baetis sp. “C” Morihara et McCafferty est nommée B. notos. Des collections nouvelles permettent détendre les limites de répartition connues de Baetis insignificans McDunnough, Baetodes edmundsi Koss, B. fuscipes Cohen et Allen, et Dactylobaetis mexicanus Traver et Edmunds.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1987

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References

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