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North American Ecology (US and Canada)Satyrium calanus is resident throughout the eastern United states and into southern Canada, and also in two distinct populations further west (Scott 1986). Habitats are open deciduous woodland from gulf coast to lower Canadian zone. Host plants are trees in multiple families, including Fagaceae, Juglandaceae, Rosaceae, Aceraceae and Oleaceae. Eggs are laid on host twigs. Individuals overwinter as eggs. There is one flight each year with the approximate flight time July1-Aug15 in the northern part of the range and late Apr.- early June in the southern part of their range (Scott 1986).