Estern Tiger Swallowtail Butterfly
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The caterpillars feed on the leaves of a variety of trees including ash, birch and willow. Adults nectar on a variety of flowers.
They are relatively large butterflies that fly almost year round in the south and from late spring to early fall in the north.
Like their Western counerparts, they are recognized for their yellow striped wings. Unlike their western counterparts, the females also have a black form, shown below. A close inspection of the wing pattern is necessary to distinguish the black form from the Eastern Black Swallowtail.
© 2009 Patricia A. Michaels