Rainwisp

This creature is a relative of the Honeywisp that seems to be blue instead of pink. It holds a raindrop at the bottom instead of a drop of nectar or a spray dose. This means that there's nothing to be gained for defeating a Rainwisp other than a raindrop that will break when it hits the ground and endanger non-Blue Pikmin. It's possible that it is out gathering water for its young to drink.

Portal- Kombat

In other games
PS undefined In PikSpore, these creatures are more aggressive, dropping the raindrop when Pikmin walk underneath. The raindrop quickly regenerates, making this an annoying foe when it's in groups.