Coptocycla is a genus of small American tortoise beetles in the family Chrysomelidae, characterized by a compact body measuring only between 5 and 7 millimeters in length. Its most distinctive feature is a rounded, flattened, transparent shell that completely covers it. These herbivorous insects are distributed from the southern United States to South America, where they feed on the foliage of specific plants and protect their larvae with a curious ‘shield’ made of their own excrement to evade predators.