- Voice actor: Rikako Aikawa (both English and Japanese)
Butterfree resembles a vaguely anthropomorphic butterfly with a purple body. Unlike true insects, it only has two body segments and four light blue legs. Butterfree has two black antennae, a light blue snout with two fangs underneath, and large, red compound eyes. Its two pairs of veined wings are white with black accents. Its height is 3'07" and weight is 70.5 lbs.
The oval scales of a female Butterfree's lower wings are black, but white in males.
Butterfree's wings are covered with poisonous powders that fall off continuously as it flies. This powder repels water, enabling it to gather honey even in the rain. Butterfree will roam up to six miles (ten kilometers) from its nest in search of honey, which it carries with the hairs of its legs. It also consumes sap from trees pierced by Heracross, as seen in the anime.
- Main article: Pokémon food
Ash Ketchum had a Butterfree that he had caught as a Caterpie, the first Pokémon he ever caught. Butterfree was also the first Pokémon Ash let go, allowing him to mate with a Pink Butterfree in Bye-Bye Butterfree.
A pink Butterfree appeared in Bye-Bye Butterfree. Ash's Butterfree fell in love with her and fought to save her from Team Rocket. At the end of the episode, Ash released his Butterfree to mate with the pink Butterfree.
After the Team Rocket Gang kidnapped Dr. Gordon and flew away on Jessie's Dustox in Caterpie's Big Dilemma, Xander's giant Metapod evolved into a Butterfree to chase Team Rocket. Xander's Butterfree shrunk back to its normal size at the end of the episode.
An Orange Archipelago variant of Butterfree living on Valencia Island appeared in Poké Ball Peril. It had not eaten for days despite Professor Ivy's effort to make different kinds of food for it. It took a liking to Brock's food, however, and was one of the reasons he stayed behind. It reappeared in a flashback in A Tent Situation.
Multiple Butterfree appeared in Battle Aboard the St. Anne.
A Butterfree also appeared in Pokémon Fashion Flash.
Multiple Butterfree appeared in A Sappy Ending.
Butterfree also appeared in Once in a Blue Moon.
A Butterfree was one of the Pokémon seen at the Pokémon Swap Meet in Tricks of the Trade.
Three Butterfree appeared in a flashback in The Light Fantastic.
A Butterfree was one of the inhabitants of an oasis just for Pokémon in Got Miltank?.
A Butterfree made a brief appearance in Camp Pikachu.
A Butterfree appeared in Curbing the Crimson Tide!.
A regular Butterfree appeared in Pinch Healing!.
Butterfree appeared in Pokémon Ranger and the Kidnapped Riolu! Part One.
Multiple Butterfree made brief cameo appearances in Giratina and the Sky Warrior.
Another Butterfree appeared in Camping It Up!.
Butterfree, Butterfly Pokémon. The evolved form of Metapod and final evolved form of Caterpie. Its love of flower nectar draws it to seek out flowers, even if they do not have much pollen. The scales covering its wings help it to shed water.