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Eastern Tiger Swallowtail Papilio glaucus The common yellow and black garden swallowtail. Fluctuates widely in numbers from year to year. Has a black form (see below) which only occurs in females and in Arkansas at about a 10 to 20 percent incidence. In the east this normal form is not confusable with any other current species. In the west there are several species with this base pattern. If the Appalachian Swallowtail is found here it is separable by size and by the width and color of the marginal spot line on the upper forewing. Nectar hogs. This one is shown on a blooming buttonbush which is almost 100% guaranteed to contain some Swallowtails in summer. |
