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Pipevine Swallowtails are usually blackish in color. Their caterpillars eat pipe vines, aristolochias, which are woody vines with sharp smelling roots. This food makes most of these butterflies not very tasty to most predators. North American species include Blue Swallowtail and Gold Rim.
Zebra Swallowtails are aptly named for their color, which resembles that of a zebra, white with black stripes. There are only two members of this group in North America Zebra and Dark Zebra Swallowtail. You’ll find their caterpillars on pawpaws and other members of Asimina species. Because of this very specialized host plant, Zebra numbers have dropped rapidly in recent years.
Have you seen a swallowtail recently?
Christi Vega is the author of "The Joy and Serenity of Creating A Butterfly Garden". Go to http://www.abutterflygarden.com to learn how you can create a beautiful garden that attracts these marvel winged creatures to your home. You may reprint this article in its entirety as long as the resource box is included.