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One tail on hindwing. Upperside blue-gray with large red spot near tail. Underside of spring/fall form is dark gray, summer form is paler gray. Relatively straight postmedian line is white, bordered with orange on the inside edge. Wing Span: 7/8 - 1 3/8 inches (2.2 - 3.5 cm).
Nectaring on milkweed flower along the side of the road.