Ravenous Whiskerpillar
Lepidoptera pluckieus
The Ravenous Whiskerpillar is an enemy in Pikmin 2. These enemies are not harmful to the Pikmin, but are dangerous to the Burgeoning Spiderwort plants. They will eat the berries on the plants, which are necessary to make sprays. They can be found in the Awakening Wood, the Perplexing Pool and the Wistful Wild; each time, they are near two or more Burgeoning Spiderwort plants. When confronted, they will drop off the plant and burrow into the ground. Strangely enough, when killed, they don't seem to be dead; carrying them will make them squirm and emit more of their hissing. The in-game Piklopedia states that they are a larval form of another creature, but it says that mature specimens have not been found yet. Interestingly, it is the only enemy that does not appear in any underground areas, but nonetheless has a poko value of 1.
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How to Kill
Pikmin
If it's on a flower, send a couple of Pikmin up there to bring it down, then swarm it with the rest when it falls. Otherwise, just swarm it.
Captains
If it's on a flower, then you must wait for it to eat all the berries, then kill it when it hops off of the plant. If on the ground, just punch it until it's dead.