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Somatochlora kennedyi (Kennedy's Emerald)BC conservation rank: S3S4. Blue List. Modified from the 2000 rank of S1S2 in 2004 to account for the addition of a number of widespread records throughout the North.Description: Variable coloration on the thorax; often lacks conspicuous spots, but may have extensive yellow-brown markings on the sides of the thorax. There are usually no spots on the abdomen sides after segment 3. The abdomen is long, the male's widest at segment 6. Male's appendages, fig. 13d. Female's vulvar lamina is yellow, scoop-shaped (fig. 14d). Length: male 44 mm, female 43 mm. Global Range: Alaska and Yukon east to Labrador and Nova Scotia, south to New York, Ohio, Wisconsin, Saskatchewan and British Columbia (Needham et al. 2000). Faunal element: Southern Boreal (see Appendix 2). BC Distribution: Scattered localities across the northern half of the province from Fort St. James in the South to the Yukon boundary in the North. Biology: Rare in northern BC. Found in sedge fens or bogs where females lay eggs in in flooded moss mats or in shallow, open pools underlain by aquatic moss (e.g., Wb13; Wf01-02, Wf06-07). Named for the American dragonfly researcher, Clarence Kennedy. BC flight period: mid June to late August; the few records range from late June to early August. Management and protection considerations: Like other rare or uncommon northern Somatochlora species, S. kennedyi lives in habitats that are common and widespread, but difficult to sample because of their remoteness from roads. It apparently lives in a wider range of peatland types than do S. brevicincta and S. forcipata. For these reasons, it is probably relatively more abundant than records indicate. Nevertheless, these habitats are sensitive to changes in drainage created by road building and other construction, siltation resulting from logging and other disturbances. In general, peatland pools and peat-margined lakes should be managed to maintain water and littoral habitat quality. Development that may affect the hydrology of a catchment area should be managed to minimize impacts.
Somatochlora kennedyi Map 3. Frequency of records in British Columbia by NTS 1/50,000 mapsheet. |
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