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North American Ecology (US and Canada)

Boloria eunomia is a resident across Canada and in several small populations through the US Rocky Mountain range (Scott 1986). Habitats are Canadian to alpine zone bogs and moist tundra. Host plants include shrub and herbaceous species from many families including Salicaceae, Polygonaceae and Violaceae. Eggs are laid on many plant species in clusters of 2-4, and rarely up to 20 eggs per clutch. Individuals overwinter as third and fourth instar larvae. There is one flight each year with the approximate flight time July 1- early Aug in the southern part of the range and June 15-July 31 in the north (Scott 1986).


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