(Papilio troilus)

Residents of the Eastern states from southern Canada to Florida; west to Oklahoma and central Texas, they occasionally stray to North Dakota, central Colorado, and Cuba.

They can be found in deciduous woodlands, fields, roadsides, yards, pine barrens, wooded swamps, and parks.

Males patrol in woods, roads and woodland edges to find receptive females. Females lay single eggs on underside of host plant leaves. Caterpillars live in shelters of folded-over leaves and come out to feed at night. Some chrysalids from each generation hibernate.