Sonora skipper (Polites sonora) COSEWIC assessment and status report: chapter 9

Special Significance of the Species

This species is one of a small group of butterflies that reach the northern limit of their global range in the Cascade Mountains area of extreme southern British Columbia. The six known Canadian locations for the skipper, each of which may represent a population, are part of an apparently disjunct population group that occurs only in the north Cascade Mountains, with six of the eleven (55%) known locations of the group occurring in Canada.

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