Cabbage White butterfly (Pieris rapae) on purple aster (Symphyotrichum puniceum).

The Small White is a small- to medium-sized butterfly species of the Yellows-and-Whites family Pieridae. It is also known as the Small Cabbage White and in New Zealand, simply as White Butterfly. The names "Cabbage Butterfly" and "Cabbage White" can also refer to the Large White.