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Species Description- Eastern Tiger Swallowtail
Papilio glaucus

Tiger Swallowtail
Eastern Tiger Swallowtail on Mountain Laurel
Papilio glaucus
Bradford County, PA

    The Tiger Swallowtail is one of our largest and most immediately recognizable of butterflies.  They are also common enough that nearly everyone has seen one.  Nearly five inches across and patterned with bold yellow and black stripes, it is easy to see where the Tiger Swallowtail got its name.  The caterpillars feed on the leaves of cherry, tulip trees, and lilacs, while the adults drink nectar from a wide variety of flowering plants.  They are often drawn to gardens.  The caterpillars of this species are just as distinctive as the adults, the caterpillars being a light green and possessing large black and orange eyespots.  Tigers are not the only Swallowtail native to the state.  They are joined by Black Swallowtail, Pipevine Swallowtail, and Spicebush Swallowtail, although the latter three are less common and less boldly colored.


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