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Delaware State Butterfly
Tiger Swallowtail Butterfly
Adopted on June 10, 1999.
Adopted on June 10, 1999, the Tiger Swallowtail, (Pterourus glaucus,) was declared Delaware State's official butterfly. The tiger swallowtail, a large, yellow, black-striped butterfly, is indigenous to Delaware and can be seen in deciduous woods, along streams, rivers, and wooded swamps, and in towns and cities throughout Delaware. Three butterflies were chosen by students of the Richardson Park Learning Center as possible State butterflies; then 1,611 out of 3,175 public and parochial students all over the State voted to suggest to the Legislature that the tiger swallowtail be named the State's butterfly.
Delaware State Butterfly:Tiger Swallowtail Butterfly
One of our largest, most beautiful, and fairly common butterflies, the Tiger Swallowtail in its light form is unmistakable. But the females in this area can be light or dark. The dark form females are thought to gain protection from predators by mimicking the Pipe Vine Swallowtail. Tiger Swallowtail larvae feed on a number of types of tree including Tulip Tree (Liriodendron tulipifera) and wild cherry (Prunus spp.).
Characteristics of the Tiger Swallowtail Butterfly
The eastern tiger swallowtail, Papilio glaucus, one of the most common and widely distributed swallowtail butterflies in the eastern United States, has a wingspan that can reach 5 inches. The males' bright yellow wings have four black bands on the front wings, and a long black tail on each hind wing, and are easily identified. The first rendering of this species was of an adult male, drawn in 1587 by John White, commander of Sir Walter Raleigh's third expedition to North America. Some females, particularly those in the North, are black, with some blue interlaced with black bands on the hind wings. These females superficially resemble the poisonous blue pipevine swallowtail, Battus philenor.
The tiger swallowtail is widely distributed from New England west through the southern Great Lakes area (along Merriam's "transition life zone") through most of the Great Plains states and south to Texas and Florida. In the transition zone, the eastern tiger swallowtail is sympatric with the closely related Canadian tiger swallowtail, Papilio canadensis (until recently, considered a subspecies of P. glaucus).
On June 13, 1987, the US Postal Service issued a sheet of 50 different stamps commemorating American wildlife. Many of the animals in the sheet are native to Georgia, but two -- the Tiger Swallowtail butterfly and the Bobwhite -- are official state symbols of Georgia. On April 4, 1988, Gov. Joe Frank Harris signed an act of the General Assembly naming the Tiger Swallowtail as Georgia's official state butterfly to mark the opening of the Cecil B. Day Butterfly Center at Callaway Gardens in 1988.
Delaware State Code
§ 315. State butterfly.
Delaware Law FORMERLY SENATE BILL NO. 85
|Kingdom||Animalia -- animals|