Caterpillar Identification Guide

American Lady (Vanessa virginiensis) caterpillar

Common Name: Spicebush Swallowtail

Genus-Species: Papilio trailus

Host Plants: Spicebush (Lindera benzoin), sassafras trees (Sassafras albidum); perhaps prickly ash (Zanthoxylum americanum), tulip tree (Liriodendron tulipifera), sweetbay (Magnolia virginiana), camphor (Cinnamomum camphora), and redbay (Persea borbonia).

Habitat: Woodlands, and open areas near woodlands.

Comments: 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.