Genosect

Genosect is a Bug/Steel type Legendary Pokémon that first appears in Pokémon Black and White in the Generation V games. This Pokémon is currently known to be #649 in the National Pokédex.

Trivia

 * Despite Genosect lacking wings, it can learn Fly.
 * Genosect is the only Bug-type Legendary Pokémon, excluding Arceus holding the Insect Plate.
 * Genosect and Ulgamoth are the only two Bug-type Pokémon being able to learn Fly.