A Siphlonurid Mayfly - Siphlonurus phyllis
This is a large, swimming mayfly capable of surviving in ponds and wetlands without flowing water. It occurs in western Montana in numerous ponds and wetlands around the West Glacier area, Glacier National Park, Flathead Co.; habitat also listed as ponds and beaver ponds in Glacier Co. (McCafferty and Newell, 2007).
This mayflies range includes Montana (SNR), Alberta(SNR), British Columbia (SNR), Northwest Territories (SNR), Ontario (SNR), Yukon Territory (S3S4)
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Emergent wetlands: all had organic substrates with extensive emergent vegetation (mostly sedges). Some sites were temporary, but others were permanent beaver ponds. S. phyllis sites were scattered around the park but were limited to valleys (Hossack et. al 2010)
- Literature Cited AboveLegend: View Online Publication
- B.R. Hossack, R.L. Newell and D.C. Rogers. 2010. Branchiopods (Anostraca, Notostraca) from protected areas of western Montana. Northwest Science. 81(1): 52-57.
- McCafferty, W.P. and R.L. Newell. 2007. Insecta, Ephemeroptera: Range extensions and new state records from far western Montana, U.S.A. Check List 3:260-266.
- Additional Sources of Information Related to "Insects"