Beedrill (Japanese: スピアー Spear) is a dual-type Bug/Poison Pokémon.
It evolves from Kakuna starting at level 10. It is the final form of Weedle. It can Mega Evolve into Mega Beedrill using the Beedrillite.
Beedrill mostly resembles a bipedal wasp; however, it only has four legs instead of six and lacks pigment pits. Beedrill's head is round with a slightly pointed mouth, large, red eyes, and antennae in the shape of the number seven. Its forelegs are tipped with long, conical stingers. It stands on its other two legs, which are long, segmented, and insectoid in shape. Beedrill has two pairs of rounded, veined wings, and another stinger on its striped abdomen.
As Mega Beedrill, its gains more defined features. The horns becomes more curved and sharp like two different triangle fused together each, and its eyes become longer and sleeker. Its upper wings split in two with black trim along the top, and the bottom wings become smaller. Its drills become longer and larger, resembling javelins. Its legs are no longer insectoid, and instead resemble its arms in shape. Its abdomen becomes larger and grooved, and is attached to its thorax by a black structure. Its main stinger is now a pale yellow, and black stripes appear on on its abdomen, chest, and leg stingers. The poison that Mega Beedrill produces from its four limbs all work instantaneously, yet the poison it emits from its tail is slow-acting. It uses the former to prevent its foes from fleeing, and the latter to deal the finishing blow.
Beedrill is highly territorial and normally lives in colonies. As seen in the anime, Beedrill seems to be especially concerned with the welfare of Weedle and Kakuna, and it will respond aggressively to those that disturb them. Disturbing a swarm of Beedrill will cause the whole colony to attack. It flies at high speed and attacks using the large venomous stingers on its forelegs and abdomen. The two stingers on its forelimbs allow it to use its former signature move, Twineedle. It will take the victims of its attacks back to its nest for food. Beedrill nests in forests and misty wooded areas.