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Aeshna palmata (Paddle-tailed Darner)BC conservation rank: S5. Yellow List.Description: The face is greenish yellow with a black line; the rear of the head is black. Thorax stripes are almost straight (fig. 7l). The abdomen has pale spots on top of segment 10, but none underneath on any segments. Compare with A. umbrosa, which does have these ventral spots. Male's stripes are yellow below and green to blue above, and its abdominal spots are blue. Females can be coloured like the male, but most have green-yellow thorax stripes and abdominal spots. Male's upper appendages flattened (fig. 9c). Length: male 72 mm, female 67 mm. Global Range: Alaska east to the Rockies, but with outliers in the foothills and in the Cypress Hills of Alberta and Saskatchewan; south to Nebraska, New Mexico and California (Needham et al. 2000). Faunal element: Cordilleran (see Appendix 2). BC Distribution: Widespread. Biology: One of the most frequently encountered and abundant dragonflies in BC, though not as plentiful in the far north. Lives in a wide range of habitats, but typically in lakes and ponds in or near woodlands. (e.g. Wm01-02, Wm04-07; Wf01, 05-06; Wb50-52). BC flight period: early May to early November; most collections are from early July to early October.
Aeshna palmata Map 3. Frequency of records in British Columbia by NTS 1/50,000 mapsheet. |
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