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Eastern Tiger Swallowtail Butterfly - Male

Eastern Tiger Swallowtail Butterfly - Female

Photographed in Mead Garden, Winter Park, Florida on August 23, 2009.

Identification: Adult males are yellow, with four black “tiger stripes” on each fore wing. The trailing edges of the fore and hind wings are black which is broken with yellow spots. On the medial margin of the hind wing next to the abdomen there are small red and blue spots.

There are two morphs of adult females, a yellow and a dark one. The yellow morph is similar to the male, except that the hind wings have an area of blue between the black margin and the main yellow area. In the dark morph, most of the yellow areas are replaced with a dark gray to a black. A shadow of the “tiger stripes” can still be seen on the dark females. The dark form is more common in the Southern portions of the range, especially in areas also inhabited by the poisonous Pipevine swallowtail, which it seems to mimic.

Range: Eastern North America from Ontario south to Gulf coast, west to Colorado plains and central Texas

Habitat: Deciduous broadleaf woods, forest edges, river valleys, parks, and suburbs.

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