Butterfree resembles a vaguely anthropomorphic butterfly. Unlike true insects, it only has four legs, which are a pale blue color. It has a nose-like structure which is a similar color. Butterfree's body’s coloration is a darker purple-blue. It has large veined wings which are white with black markings. These markings can help distinguish male and female individuals. It has large compound eyes which tend to be a reddish color. Like members of the order Lepidoptera, Butterfree’s wings are covered in fine scales. Its legs are covered in fine hairs which aid in the collection of honey.
The waterproof scales on Butterfree’s wings are loosely attached, and if the Butterfree flaps them hard enough, they will be released into the air. This resulting “dust” is toxic, and can be irritating if inhaled.
In addition to the usual powers posessed by Bug-type Pokémon, Butterfree also learns a variety of powerful Psychic-type moves.
Butterfree spends most of its time foraging for nectar and pollen, locating the flowers by its sense of smell. In the wild they need to eat constantly. Special adaptations such as waterproofing on their wings, and tiny hairs on their legs let them gather food even in the rain. Butterfree will roam up to six miles from their nest in search of honey.