Aphrissa statira, the statira sulphur, is a species of Lepidoptera in the family Pieridae. The species is a medium-sized yellow butterfly, with females more pale than males. They are found from southern regions of Florida and Texas through southern Brazil and northern Argentina. The caterpillars feed on the leaves of several local host plants, while adults prefer to feed on the nectar of red or orange colored flowers. The species is most noted for their dramatic migrations in the tropical areas of the Americas. They have been the subject of many studies about how butterflies navigate and orient during migration. Identification Aphrissa statira has a wingspan of about to . Because of their yellow color, they can be difficult to differentiate from cloudless sulphur butterflies when flying. In general, the color of their wings vary between individual butterflies, with the most variation in color seen in Colombia, Central America, and Mexico. The subspecies A. statira cubana has also been characterized in Cuba, Jamaica, and the Cayman Islands. The lustrous underside of the wings of both sexes is pale green or white with more yellow on the edge. They exhibit sexual dimorphism; males have a different color than females do in their upper wing. Male The upper surface of the male wing is divided by ridges of androconial scales. The outer half of wing is pale yellow and inner half is a brighter, lemon yellow. Female Female statira sulphur are lighter yellow to greenish-white with black borders at the apex and outer margin. Additionally, they have a solid black cell spot. Females also have pink to purple-brown spots and uneven borders along the periphery of the underside of the wing. Geographic range The species ranges from Argentina north through Central America, extending as far as southern Texas and Florida and are also found on nearby islands. They can also be found through southern Georgia, New Mexico, and Kansas. They are especially abundant in the Amazon. Many flights occur in Florida from June through February and they make large migrations in the tropics. Habitat Aphrissa statira are found in tropical scrubs, gardens, fields and forest edges. Males are usually found on the edges of rivers and other open spaces. Females are often found in the thinner parts of the forest and along the edges. They are often found in very high density, but can be more rare along the edges of their