Wurmple will evolve into either Silcoon or Cascoon starting at level 7 depending on its personality value. As personality values cannot be influenced or seen by the player, what a given Wurmple will evolve into is essentially random. From there, the Silcoon or Cascoon will evolve again starting at level 10 into Beautifly or Dustox respectively.
In Hisui, Wurmple evolves either Silcoon during the day or Cascoon during in the night.
Wurmple is a small, caterpillar-like Pokémon. Its body is mainly red with a cream underside and face. It has large yellow eyes with dark pupils. It has one sharp yellow stinger on its head and two of them on its rear. It has a tall, erect, red spine behind its forehead and a similar, smaller spine behind that. It has small spikes running down the top portions of its body and five pairs of stubby white limbs.
Wurmple has suction pads at the tips of its feet, which allow it to cling to glass or tree branches without slipping. It can spit white silk that turns gooey when exposed to the air. It can release poison from its tail spikes, which can weaken and poison foes. Wurmple lives in forests. It eats leaves and pulls bark off trees to feed on the sap. Taillow, Swellow, and Starly are natural predators of Wurmple.
Jessie also caught a Wurmple in All in a Day's Wurmple. It evolved into a Cascoon in the same episode that May's Wurmple evolved in, and into a Dustox in the same episode where May's Silcoon had evolved into a Beautifly.
Using the spikes on its rear end, Wurmple peels the bark off trees and feeds on the sap that oozes out. This Pokémon's feet are tipped with suction pads that allow it to cling to glass without slipping.
Wurmple is targeted by Swellow as prey. This Pokémon will try to resist by pointing the spikes on its rear at the attacking predator. It will weaken the foe by leaking poison from the spikes.
It sticks to tree branches and eats leaves. The thread it spits from its mouth, which becomes gooey when it touches air, slows the movement of its foes.
Using the spikes on its rear end, Wurmple peels the bark off trees and feeds on the sap that oozes out. This Pokémon's feet are tipped with suction pads that allow it to cling to glass without slipping.
Wurmple is targeted by Swellow as prey. This Pokémon will try to resist by pointing the spikes on its rear at the attacking predator. It will weaken the foe by leaking poison from the spikes.
Likes sap and is abundant in the wild. Why it evolves into various different forms is unknown. One cannot tell from a Wurmple's appearance which form it will take when it evolves.
Game locations
This Pokémon was unavailable prior to Generation III.
Thanks to the suction pads on its feet, Wurmple can scoot right up any surface! When threatened, it defends itself by releasing poison from its tail spikes.
Costumes in Pokémon GO
Party hat
Evolution
Whether Wurmple evolves into either Silcoon or Cascoon depends on its personality value. As personality values cannot be influenced or seen by the player, what a given Wurmple will evolve into is essentially random.
Wurmple shares its category with Caterpie and Snom. They are all known as the Worm Pokémon.
Wurmple is the only Pokémon whose branched evolutions evolve further. All other Pokémon with a branch in their evolutionary line either evolve once before the branch or do not have any other evolutionary event besides the one which is branched.
Wurmple is the only Pokémon whose evolution is directly influenced by its personality value.
Pokémon whose evolution are influenced by their gender also evolve based on their personality value, although, unlike Wurmple, their determined evolution can be known in advance.
Wurmple seems to be based on a caterpillar, particularly the pipevine swallowtail larva due to its red color and the many nodules along its body. Its ability to inject poison may be based on caterpillar stings.
Name origin
Wurmple may be a combination of worm and rumple (creased or wrinkled in texture) or simple (since it is small and weak).
Kemusso may be derived from 毛虫 kemushi (caterpillar).