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GYRINUS (GYRINULUS) CAVATUS SP.NOV. FROM NORTH AMERICA DESCRIBED AND COMPARED WITH GYRINUS (GYRINULUS) MINUTUS FABRICIUS (COLEOPTERA: GYRINIDAE)

Published online by Cambridge University Press:  31 May 2012

F.M. Atton
F.M. Atton
Affiliation:
412 Leslie Ave., Saskatoon, Saskatchewan, Canada S7H 2Z1
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Abstract

Gyrinus cavatus sp.nov. (type locality: Floral, Saskatchewan, Canada), from across Canada, is compared with G. minutus Fabricius. The two species are broadly sympatric in the northern boreal and transition forests, but G. cavatus is more abundant southward into the northern United States. Therefore, the subgenus Gyrinulus Zaitsev is not monobasic, but has three species in North America, including G. rockinghamensis LeConte.

Résumé

L’espèce Gyrinus cavatus, espèce nouvelle (endroit type : Floral, Saskatchewan, Canada), à travers le Canada, est comparée à G. minutus Fabricius. Les deux espèces sont largement sympatriques dans les forêts boréaux du nord et celles de transition, mais G. cavatus est plus abondante vers le sud jusqu’au nord des États-Unis d’Amérique. Ainsi, le sous-genre Gyrinulus Zaitsev n’est pas d’une monobase,mais est constitué de trois espèces en Amérique du nord, y compris G. rockinghamensis LeConte.

Type
Articles
Information
The Canadian Entomologist , Volume 122 , Issue 4 , August 1990 , pp. 651 - 657
Copyright
Copyright © Entomological Society of Canada 1990

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