The Spicebush Swallowtail (Papilio troilus) is a common black swallowtail butterfly found in North America, also known as the Green-Clouded butterfly. It has two subspecies, Papilio troilus troilus and Papilio troilus ilioneus, the latter found mainly in the Florida peninsula. The spicebush swallowtail derives its name from its most common host plant, the spicebush, members of the genus Lindera.
Year-round resident in eastern North America as far north as southern Canada, with some migratory sections extending the range to the north and west (Scott 1986). Habitats are DECIDUOUS WOODLANDS. Host plants are largely restricted to a few species mostly in famiies, LAURACEAE and MAGNOLIACEAE. Hosts can be shrubs or trees. Eggs are laid on the host plant singly. Individuals overwinter as pupae. There are multiple flights each year with the approximate flight time MAY15-SEP15 in the northern part of the range and MAR1-DEC31 in the southern part of their range (Scott 1986).