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Sympetrum madidum (Red-veined Meadowhawk)BC conservation rank: S4. Yellow List.Description: Immatures are grey-brown; males and some females become red and, with age, darken to wine-red. The thorax sides have a pair of white stripes that reduce to spots on mature males. The wing veins are yellow, turning red with age; old ones have brown-tinted wing membranes. The legs are black. The sides of the abdomen bear a white stripe bordered above by black, but these marks fade with age. Hamule, fig. 19c; vulvar lamina a third the length of segment 9, its lobes short and triangular. Length: male, female 39 mm. Global range: Yukon east to Manitoba, south to California and Missouri (Needham et al. 2000). Faunal element: Western (see Appendix 2). BC Distribution: Widespread in the South, ranging north to about 53°N in the Cariboo-Chilcotin region. Probably occurs sparingly north of this in BC, because there are records from the southern Yukon and Northwest Territories, but surveys have failed to find it. Biology: Uncommon. Develops in a variety of still-water habitats, including marshes (Wm01, Wm04-07), sedge fens (Wf01, Wf06) and saline grassland ponds (Wm04, Wm07, GS01-03), which often dry up in summer. Females lay eggs in water or on the beds of dry pools. Cannings (1980b, 1981) described the larva and the ecological preferences of S. madidum on the Chilcotin Plateau. BC flight period: late May to late September; most records are from early June to late August.
Sympetrum madidum Map 3. Frequency of records in British Columbia by NTS 1/50,000 mapsheet. |
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