Pieris rapae, commonly known as the Small White or Cabbage White, is a butterfly species in the Pieridae family. It is easily identified by its white wings with small black tips and spots. This species is found in various habitats including gardens and fields, where it often lays eggs on cabbage and other brassicas.

Pieris rapae, commonly known as the small white or cabbage white butterfly, is native to Europe, North Africa, and Asia. It has been introduced to North America, Australia, and New Zealand, where it is now widespread.

Pieris rapae typically inhabits temperate regions with a range of environmental conditions. It thrives in open areas such as fields, gardens, meadows, and parks. The species prefers environments where host plants such as cabbages and other crucifers are abundant.

The small white butterfly occupies the ecological niche of a pollinator and herbivore. Its larvae (caterpillars) feed on leaves of cruciferous plants, which can sometimes classify it as a pest in agricultural settings. The adults are important pollinators, visiting a variety of flowers to feed on nectar.