Pterourus troilus (Linnaeus, 1758)
Status: Uncommon/rare stray, possibly breeding on ornamentals
NENHP Ranking: Not listed
Range: The Spicebush Swallowtail is a resident in the southern and eastern United States from eastern Texas to the New England states. From there it strays north to the Canadian border. In Nebraska it has been found in the southeastern quarter of the state.
Broods/Flight Times: Multiple flights in its home range to our southeast
Larval Hostplant(s): Ornamental laurels – Spice bush (Lindera benzoin) and sassafras (Sassafras species).
Habitat: It is a resident of wooded areas in its home range, but as a stray it might be encountered anywhere here.
Found at: Most strays have been found in southeastern Nebraska.
Overwintering: In its home range this species overwinters as pupae, but is not thought to do so in Nebraska.
Similar Species: Black Swallowtail, Pipevine Swallowtail (which it mimics), and the dark form of the Eastern Tiger Swallowtail.
Notes: This butterfly is abundant in the Ozark region of Missouri.