Hesperiini

The Hesperiini or branded grass skippers are a tribe in the Hesperiinae subfamily of skipper butterflies. They are known as branded grass skippers because all the males in this tribe feature a black diagonal brand of scales on their forewings that exude pheromones to attract females. Some subspecies of Hesperiini, such as Thespius Maacki, are found in high-altitude grasslands in areas like Araçatuba Mountain in Paraná, Brazil.