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CARABHYDRUS MUBBOONUS, A NEW SPECIES OF RHEOPHILIC WATER BEETLE (COLEOPTERA: DYTISCIDAE) FROM QUEENSLAND, AUSTRALIA

Published online by Cambridge University Press:  31 May 2012

David J. Larson
Affiliation:
Department of Biology, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X9
Ross I. Storey
Affiliation:
Queensland Department of Primary Industries, Mareeba, Queensland, Australia 4880

Abstract

Carabhydrus mubboonus, new species (Coleopiera; Dytiscidae; Hydroporinae) from small. closed, forest streams of the Great Dividing Range of northern Queensland. Australia, is described. A key to the five described species of Carabhydrus is presented. The systematic position of the genus Carabhydrus Watts is reviewed. Although it resembles members of the Bidessini Sharp in some characters, others indicate the genus belongs in the tribe Hydroporini Erichson (1837) and has affinities with the subtribe Sternopriscina Van den Branden, However, no clear synapomorphy was discovered that unequivocally identifies the sister taxon.

Résumé

Carabhydrus mubboonus (Coleoptera; Dytiscidae; Hydroporinae), une nouvelle espèce dont on trouvera ici la description, provient de petits ruisseaux forestiers bien ombragés des montagnes de la Cordillère australienne dans le nord du Queensland, en Australie. Une clé permettra d’identifier les cinq espèces connues de Carabhydrus. La position systématique du genre Carabhydrus Watts a été réexaminée; bien que certains caractères indiquent qu’il s’apparente à certains genres de la tribu des Bidessini Sharp, d’autres caractères le rapprochent de la tribu des Hydroporini Erichson (1837) et sont indicateurs d’affinités avec la sous-tribu des Sternopriscina Van den Branden. Cependant, aucune synapomorphie bien définie ne permet d’identifier le taxon soeur avec certitude.

[Traduit par la Rédaction]

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1994

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