Halloween pennant

The wings are orange-yellow in color, though its markings are dark brown, not black as is commonly believed; the entirely orange-yellow wings with dark brown bands are what has given it its Halloween common name and its typical position of being perched at the tip of a weed stalk, waving in the breeze like a pennant contributes to the remainder of its common name. The young has yellow markings, including a stripe on its back, and adult males develop pale red markings, particularly on the face, though females will occasionally get these red markings too.