Still waiting for spring.

Tiger swallowtail butterfly from warmer times.

Papilio canadensis
Eastern Tiger SwallowtailThe color of the eastern tiger swallowtail can vary. Males are yellow or yellow-orange with black tiger stripes. Their wings are bordered in black with yellow spots, and there are black "tiger stripes" running across the top of their wings. Their long black tails have blue patches on them.
Eastern Tiger SwallowtailFemales can range in colour from the yellow of the male to an almost solid bluish-black. The black form the the eastern tiger swallowtail is most common in the southern part of its range in areas also inhabited by the pipevine swallowtail, a butterfly that has an unpleasant taste. The black form of the eastern tiger swallow tail may be an example of deceptive coloration using mimicry.
source - http://www.nhptv.org/natureworks/easterntiger.htm

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