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Aeshna juncea (Sedge Darner)BC conservation rank: S5. Yellow List.Description: Thorax stripes are yellow-green below, blue above and bordered with black; shape, fig. 7g. The face is yellow to yellow-green with a black line. Pale spots mark the undersides of the abdominal segments. The pale areas on females are usually green or yellow-green, but on some they are blue. Male's upper appendages simple (fig. 9a). Length: male 66 mm, female 65 mm. Global Range: Alaska east to Labrador and Newfoundland; south to New Hampshire, Michigan, Manitoba, Alberta and south along the mountains to New Mexico and Oregon (Needham et al. 2000). Faunal element: Widespread Boreal (see Appendix 2). BC Distribution: Widespread. Biology: Uncommon in BC's southern valleys, but more common at higher elevations and northward; it is one of the most common species in the northern half of the province. Lives in a variety of habitats, mainly containing acidic waters, but it is most abundant in peatlands dominated by extensive stands of sedges (Wf01, 05-08; Wb13, 50-52). Also along sedge lined lakeshores (Wm01-02), especially in the North. BC flight period: mid June to early October; most records form early July to late August.
Aeshna juncea Map 3. Frequency of records in British Columbia by NTS 1/50,000 mapsheet. |
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