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Pink-edged Sulphur
Butterfly.--The male on the upper side closely resembles C. philodice, but is smaller, the fringes of the wings rose-colored. The is pale yellow above, more frequently white, with the tips of the fore wings lightly marked with blackish. On the under side the fore wings at the apex and the entire surface of the hind wings are rusty orange-yellow. The discal spot on the hind wings is silvery, bordered with rosy-red. Expanse, male, 1.30-1.75 inch; female, 1.60-2.00 inches.
Early Stages.--Little is as yet known of these.
The species was first found by Professor Louis Agassiz on the north shore of Lake Superior. It ranges through a rather narrow belt of country, through Quebec, Ontario, and westward to the Rocky Mountains north of the valley of the St. Lawrence and the Great Lakes.