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Sympetrum obtrusum (White-faced Meadowhawk)BC conservation rank: S5. Yellow List.Description: Similar to S. internum, except for the white face and dark wing veins. Immatures are yellow to yellow-brown that becomes red, especially on the abdomen, as males and some females mature. The thorax is unmarked, but the abdomen has black saw-toothed side stripes. The legs are black. Hamule, fig. 19i; vulvar lamina, fig. 20c. Length: male 33 mm, female 31 mm. Global Range: British Columbia and southwestern Northwest Territories east to Nova Scotia; south to California, New Mexico, Kansas and South Carolina (Needham et al. 2000, Dunkle 2000). Faunal element: Transition (see Appendix 2). BC Distribution: Widespread as far north as the Yukon border in the East and the upper Nass River in the West. Biology: Probably the most common meadowhawk in most of southern BC but significantly less abundant farther north and unknown in the far Northwest. Inhabits a variety of ponds, marshes (Wm01-02, Wm04-07) and peatlands (Wf01, 05-08; Wb13) in valleys and mountains. More than most meadowhawks, it can be common in peatlands, and is often more associated with forested areas than S. internum, which reaches its greatest abundance in grasslands and open terrain. BC flight period: early June to mid October; most records are from early July to early September.
Sympetrum obtrusum Map 3. Frequency of records in British Columbia by NTS 1/50,000 mapsheet. |
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