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Battus philenor
The butterflies are black with iridescent blue hind wings The upper surface of the hind wings are an iridescent blue or blue-green with pale, arrow-head markings. Males have brighter metallic regions than females The underside of the hind wing has seven orange submarginal spots surrounded by iridescent blue
In the United States, the butterfly is found in New England down to Florida west to Nebraska, Texas, New Mexico, Arizona, California, and Oregon.