Caterpillar Identification Guide

American Lady (Vanessa virginiensis) caterpillar

Common Name: Canadian Tiger Swallowtail

Genus-Species: Papilio canadensis

Host Plants: Leaves of various plants including wild cherry (Prunus species), Birch (Betula species), Aspen (Populus species), and possibly American mountain ash (Sorbus americana) and Showy mountain ash (Sorbus decora)

Habitat: Wooded areas, and open areas near woodlands.

Comments: The Canadian Tiger Swallowtail is a very common and conspicuous butterfly of northern Wisconsin. It is replaced in the south by its close relative, the Eastern Tiger Swallowtail.