The sulphur butterfly, belonging to the family Pieridae, is known for its vibrant yellow and orange wings. These butterflies are commonly found in North America, particularly in open fields, gardens, and along roadsides. They are attracted to flowers, where they feed on nectar, and are often seen fluttering around during warm months. Adult sulphur butterflies typically have a wingspan of 1.5 to 2.5 inches. Their life cycle includes four stages: egg, larva (caterpillar), pupa (chrysalis), and adult. The caterpillars usually feed on plants from the legume family, which provide essential nutrients for their growth and development.