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Limenitis arthemis astyanax
The Red-spotted Purple (Limenitis arthemis) is a polytypic species of North American brush-footed butterfly, common throughout much of the eastern United States. L. a. astyanax has red spots on its underside and the top of the wings are notable for their iridescent blue markings. The Red-spotted Purple is a mimic of the poisonous Pipevine Swallowtail (Battus philenor) and is typically found in open woodlands and along forest edges. Both sexes of this species are identical except that the females are slightly larger than the males. The upper side of L. a. astyanax is very much like L. a. arthemis except it lacks the broad white bands. The fore wing submarginal area will sometimes have a row of red spots. The hind wings are either a bright iridescent blue or an iridescent bluish-green. The underside of the wings lacks the white band. The basal area has several red spots. It has a row of red submarginal spots and bluish marginal spots. Preferred host plants: birches, including Betula lenta; Salicaceae, including Salix bebbiana and Populus tremuloides, and Prunus virginiana (Rosaceae). Also but not as often: Crataegus, Amelanchier, Malus pumila, Prunus pensylvanica and Prunus serotina (Rosaceae), Populus deltoides, P. grandidentata and P. balsamifera (Salicaceae), Alnus rugosa, Betula alleghaniensis and Carpinus caroliniana (Betulaceae), Ulmus americana (Ulmaceae), Tilia americana (Malvaceae) and Fagus grandifolia (Fagaceae). Adults are diurnal, they fly from the morning until soon after dusk (Fullard & Napoleone 2001).
Border extends from Midwest US to East Coast. Northern border ends at Canada, and extends South to central Florida.