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| The Dragonflies
(Insecta: Odonata) of the Columbia Basin, British Columbia: Field Surveys, Collections Development and Public Education Table
of Contents
Aeshna Fabricius Aeshna is a dominant genus of dragonflies in the Columbia Basin; representatives of the group fly everywhere dragonflies are found. The species are rather uniform in size and colour pattern. The body is brown; the thorax on each side has a pair of blue, green or yellow stripes. The abdominal spots are usually blue on the male and green or yellow on the female. Cannings (1996) keys the species in British Columbia and outlines the biology and distribution of the species. Peters (1998) discusses the ecology of some Aeshna species of British Columbia and presents a key to adults based on wings only. This allows the identification of specimens that have been eaten by birds, a situation often encountered in the field. Five of the twelve Aeshna species in the Kootenays are boreal (A. juncea and A. subarctica are also Holarctic); four others are transcontinental in the Transition forests and three are strictly western in range. Species: |
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