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Eastern Tiger Swallowtail |
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| Pterourus glaucus (Linnaeus, 1758) |
| Status: Uncommon to common resident. |
| Flight Period(s): There are at least two flights. In Nebraska flight dates range from 7 April – 26 September. |
| Range: The Eastern Tiger Swallowtail is found from the east coast of the United States west into the Dakotas, Nebraska, Kansas, Oklahoma and Texas. In Nebraska it is found thoughout the state, although less frequently in the west. |
| Larval Hostplant(s): While larvae have been reported to feed on a wide variety of trees and woody shrubs, Choke Cherry (Prunus virginiana) and Green Ash (Fraxinus pennsylvanica) are utilized almost exclusively in Nebraska. |
| Overwinter: As a pupa. |
| Commentary/Habitat: This is a wide-ranging species equally at home in urban areas as well as open deciduous woodlands. There is a dark form female which somewhat resembles the distasteful Pipevine Swallowtail. Adults have been observed nectaring on plum, lilacs, chockecherry, thistles, milkweed, alfalfa, and Joe Pye weed. |
| Similar Species: Western Tiger Swallowtail, Two-tailed Swallowtail, and Canadian Tiger Swallowtail, the latter of which has not yet been found in the state but has been found in southwestern South Dakota. |