Spicebush Swallowtail
(Papilio troilus)
Spicebush Swallowtail sightings, by week (about)
The Spicebush Swallowtail is an uncommon stray into Wisconsin. The main larval food plants of this species are Sassafras and Spicebush, neither of which is native to Wisconsin.
Identifying characteristics: Above: black with a row of marginal yellow/white spots; females are nearly identical to the males. Below: black, with two rows of yellow spots, the innermost row is interrupted in the middle by a blue spot.
Similar species: From below this species could only be confused with the Black Swallowtail, which also has two rows of yellow spots. It can be told from this species by the innermost row of yellow spots that is interrupted by a blue spot.
Habitat: Woodlands, and open areas near woodlands.
Flight: Two broods in northern Illinois, strays have occurred in Wisconsin mainly during June and July
Abundance: A very rare stray to Wisconsin.
Submit a Spicebush Swallowtail sighting »
Spicebush Swallowtail
Papilio troilus