Larvesta

Larvesta is a Bug, Fire-type Pokémon from the Unova region. It evolves into Volcarona when fed 400 candies.

Trivia

 * Along with Magikarp, Wailmer, Swablu, Noibat and Meltan, Larvesta is one of the Pokémon that needs 400 candies to evolve which is the largest amount of candies to evolve in the game.