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North American Ecology (US and Canada)Euphyes dion is a year-round resident in the eastern United States (Scott 1986). Habitats are Gulf Coast to transition zone marshy areas, even roadside sedge patches. Host plants are sedges of several genera, restricted to one family, Cyperaceae. Individuals overwinter as third instar larvae. There are variable numbers of flights each year depending on latitude, with one flight in the northern part of the range between July 1- early Aug. and several flights between late April- Sept. 15 in the most southern part of the range (Scott 1986).