Life history: Males perch 3 feet or more above the ground on trees and tall bushes and rarely patrol for females. Eggs are laid singly on tips of host plant leaves; caterpillars eat leaves. Third-stage caterpillars hibernate.
Flight: Two broods from April-October.
Wing span: 2 1/4 - 4 inches (5.7 - 10.1 cm).
Caterpillar hosts: Leaves of many species of trees and shrubs including wild cherry (Prunus), aspen, poplar, cottonwood (Populus), oaks (Quercus), hawthorn (Crataegus), deerberry (Vaccinium stamineum), birch (Betula), willows (Salix), basswood (Tilia), and shadbush (Amelanchier).
Adult food: Sap flows, rotting fruit, carrion, dung, and occasionally nectar from small
Habitat: The White Admiral form is usually found in the north in deciduous broad-leaf or mixed evergreen forests dominated by aspen or birch. The Red-Spotted Purple form is usually found further south than the White Admiral, in deciduous or mixed forests, moist uplands, valley bottoms, and coastal plains. Range: Alaska and subarctic Canada southeast of the Rocky Mountains to central Texas; east to New England and central Florida. Isolated populations in Arizona, New Mexico, and west Texas south into Mexico. The White Admiral form usually occurs north of a line through north central New England, New York, Pennsylvania, Michigan, and Minnesota. The Red-spotted Purple form is usually found south of this line. Much hybridization occurs where these forms meet. Comments: The Red-spotted Purple is a mimic of the poisonous Pipevine Swallowtail (Battus philenor). |
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