Zebra swallowtail caterpillars mainly feed on pawpaw trees. Spicebush swallowtails favor the spicebush and sassafras. Eastern tiger swallowtails go for several kinds of trees, including ash ...

The caterpillar most frequently found on parsley ... hindwing helps distinguish this species from the lookalike spicebush swallowtail (Papilio troilus). In parts of the West, especially from ...