This guide contains butterflies and moths that can be found in the Denver-Boulder Metro Area, including Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, and Jefferson Counties.
The Small White (Pieris rapae) 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.
The Western White (Pontia occidentalis) is a butterfly in the family Pieridae. It is found in Western North America.
The Checkered White (Pontia protodice), also called Southern Cabbage Butterfly, is a common North American butterfly in the family Pieridae. Its green larva is a type of cabbage worm.
The Spring White, California White, or Colorado White (Pontia sisymbrii) is a butterfly in the family Pieridae. It is found in mountainous areas of western Canada and the USA.