IUCN threat status:

Near Threatened (NT)


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Range Description

This species is endemic to southern Canada and northern United States. Its range is entirely within the Great Lakes basin and includes southern Ontario, the southeastern part of the lower peninsula of Michigan, and northern Ohio; north to near Saginaw Bay (Michigan) and Georgian Bay (Ontario); eastward along northern Lake Erie to Long Point Bay (Ontario) and along southern Lake Erie to Erie County, Ohio; the range includes Pelee Island and some smaller Lake Erie islands; isolated records from near Buffalo, New York, and the western end of Lake Ontario (Ontario) have not been confirmed; a record from Massachusetts probably reflects erroneous data (Conant 1938, 1940, 1951; Powell 1990; Harding 1997).


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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