Swallowtails are the largest butterflies in Illinois. These beautiful insects are easily identified by their large size and hindwing tails, which are reminiscent of the forked tails of swallows. Swallowtails are welcome visitors to flower gardens—they are adept pollinators for a number of herbs, shrubs, and trees.
Find out more about butterflies with INHS Manual 14: Butterflies of Illinois: A Field Guide.https://shop.inrs.illinois.edu/inhs-man.html
