Magnetic-navigation
Guides
Aphrissa statira
statira sulphur
Aphrissa statira is a medium-sized yellow butterfly known for its dramatic annual migrations in tropical regions of the Americas. The species exhibits sexual dimorphism, with males displaying brighter lemon-yellow upper wings and females appearing paler yellow to greenish-white. It has been extensively studied for its navigational abilities, including use of Earth's magnetic field for orientation during migration. The species ranges from the southern United States through Central America to northern Argentina, with notable population densities in the Amazon basin.