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Aeshna eremita (Lake Darner)BC conservation rank: S5. Yellow List.Description: Large; looks much like the Canada Darner, except its face is yellow-green with a black line and it lacks spots under the abdomen. Thorax stripes are blue to green; shape, fig. 7e. Pale areas on females are usually green or yellow-green, but sometimes blue. Male's upper appendages simple (fig. 9a). Length: male 75 mm, female 73 mm. Global Range: Alaska east to Labrador and Newfoundland; south to New York, Michigan, North Dakota, Colorado, Utah and Washington (Needham et al. 2000). Faunal element: Widespread Boreal (see Appendix 2). BC Distribution: Widespread. Biology: The largest Aeshna in Canada and one of the most often encountered dragonflies in the northern forests of North America. In southern BC, it lives at all elevations, but is most common around forest lakes at mid and high elevations. Prefers lakeshores with little emergent vegetation (e.g., Nuphar lutea associations); it also occurs in deep fens and bogs (Wf01, 05-08; Wb13, 50-52), and around lakes and ponds surrounded by sedges (Wm01-02, Wm04-07). It may fly early in the morning and in the evening when the temperature is cool and the light is low. It likes perching on tree trunks. BC flight period: mid June to late October; most records are from early July to early September.
Aeshna eremita Map 3. Frequency of records in British Columbia by NTS 1/50,000 mapsheet. |
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