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ODONATA OF PEATLANDS AND MARSHES IN CANADA

Published online by Cambridge University Press:  31 May 2012

Donald F.J. Hilton
Donald F.J. Hilton*
Affiliation:
Department of Biological Sciences, Bishop's University, Lennoxville, Quebec, Canada J1M 1Z7
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Abstract

The 196 species of Odonata known to occur in Canada are divided into two suborders: Zygoptera (52 species) and Anisoptera (144 species). None of these exclusively occupies marshes or fens. One zygopteran (Nehalennia gracilis Morse) is restricted to bogs whereas Coenagrion interrogatum (Hagen) predominantly occupies mossy bogs or fens. The following anisopterans solely, or predominantly, occupy bogs (with some occasionally in Carex marshes and (or) fens): Gomphaeschna furcillata (Say), Aeshna septentrionalis Burmeister, A. sitchensis Hagen, A. subarctica Walker, Williamsonia fletcheri Williamson, Somatochlora brevicincta Robert, S. franklini (Selys), S. incurvata Walker, S. sahlbergi Trybom, S. septentrionalis (Hagen), S. whitehousei Walker, Nannothemis bella (Uhler), and Leucorrhinia patricia Walker. Most of this information is based upon collections of adults, but studies of larvae are needed to determine the adaptations necessary for life in bog, fen, or marsh habitats.

Résumé

On divise les 196 espèces d'Odonata du Canada en deux sous-ordres : les Zygoptera avec 52 espèces et les Anisoptera avec 144 espèces. Aucune d'entre elles n'est limitée aux tourbières minérotrophes ou aux marécages de façon exclusive. L'espèce zygoptère Nehalennia gracilis Morse est limitée aux tourbières ombrotrophes alors que le Coenagrion interrogatum (Hagen) est limité principalement aux tourbières ombrotrophes et minérotrophes à mousses. Les espèces d'anisoptères listées ci-dessous sont limitées exclusivement ou principalement aux tourbières ombrotrophes (certaines résident parfois dans les tourbières minérotrophes et [ou] les marécages à Carex : Gomphaeschna furcillata (Say), Aeshna septentrionalis Burmeister, A. sitchensis Hagen, A. subarctica Walker, Williamsonia fletcheri Williamson, Somatochlora brevicincta Robert, S. franklini (Selys), S. incurvata Walker, S. sahlbergi Trybom, S. septentrionalis (Hagen), S. whitehousei Walker, Nannothemis bella (Uhler), et Leucorrhinia patricia Walker. Ces informations sont surtout basées sur la collecte d'adultes. Des études des larves seraient essentielles afin de préciser les adaptations requises pour la survie dans les tourbières ombrotophes et minérotrophes et les marécages.

Type
Research Article
Information
The Memoirs of the Entomological Society of Canada , Volume 119 , Supplement S140 , 1987 , pp. 57 - 63
Copyright
Copyright © Entomological Society of Canada 1987

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