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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).
Wildlife habitat yard on Belton Lake. The temperature had been hovering around freezing overnight. When it warmed up to above 50 F, dozens of butterflies swarmed over the rosemary which was blooming heavily.