Butterfly genus species - Southern Dogface

The southern dogface butterfly, Colias cesonia, is a yellow butterfly that is also known as the dog's head butterfly. The wings are mostly yellow; there is a small dark circle in the center of the forewing and the margins of the wings are brown) they look a bit like a dog's face). Males have brighter coloration than females. The wingspan is 2 1/4 - 2 1/2 inches (58-65 cm). The caterpillar is green with black and yellow stripes. This butterfly lives in open woods in the southern half of the USA. The larval host plant is the false indigo bush, Amorpha fruticosa (a legume). Classification: family Pieridae, genus Colias (Zerene), species C. cesonia.