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Mating Sexually Dimorphic Eastern Tiger Swallowtails

Posted by September 9th, 2008 at 12:00 am

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Butterflies and Skippers

Canton, GA
Someone in our office found these two on her car one morning
on her way in. I’ve identified them as the sexually
dimorphic Papilio glaucus more commonly called Eastern Tiger
Swallowtail. Is that a correct identification? Also, it is
an interesting picture thought you might enjoy.
Michelle Gunter

mating dimorphic swallowtai Mating Sexually Dimorphic Eastern Tiger Swallowtails

Hi Michelle,
Thanks so much for sending this beautiful image of mating
sexually dimorphic Eastern Tiger Swallowtails. The dark individual
is a female, and a small percentage of Eastern Tiger Swallowtails
show this color pattern. We have also received images of intermediate
stages: not quite light, and not quite dark.

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