Colias is a genus of butterflies commonly known as clouded yellows. They belong to the family Pieridae and are characterized by their bright yellow or orange wings, often with black markings. These butterflies are found in various habitats, including meadows and open fields, primarily in the Northern Hemisphere. The life cycle of Colias includes four stages: egg, larva (caterpillar), pupa (chrysalis), and adult butterfly. The caterpillars typically feed on plants from the Fabaceae family, such as clover and alfalfa. Colias butterflies are known for their migratory behavior, often traveling long distances in search of suitable breeding grounds.