Ravenous Whiskerpillar

The Ravenous Whiskerpillar is an enemy that is not harmful to Pikmin but is dangerous to Burgeoning Spiderworts. They will eat the berries on the plants, which are necessary to make sprays. They can be found near Burgeoning Spiderworts. When confronted on a Burgeoning Spiderwort, they will drop off the plant and burrow into the ground, providing a chance to attack it. Strangely enough, when killed, they don't seem to be dead; carrying them will make them squirm and emit more of their hissing, and a spirit does not appear. Just before they are pulled into the Onion, they struggle and hiss even more rapidly.

Olimar's notes

 * "As this species of insect has only recently been discovered, fully mature specimens have yet to be collected. No molting or metamorphosis has been observed during the observation period, making it unlikely that mature whiskerpillars will be encountered anytime soon. Based on active predation by Pikmin, it is believed that the whiskerpillar's place in the food chain has not changed over time."

Louie's notes

 * "Delicious skillet-seared or sauteed with scallions and a red Genovese sauce."

Pikmin Kart
The Ravenous Whiskerpillar is an item in Pikmin Kart that appears in item boxes commonly. When used, a Ravenous Whiskerpillar appears on the screen of another player who has an item. It will partially block their view and will eat the item that they are holding, making it useless. It will eat items that have not stopped spinning yet, and if no kart has an item, then it will have no effect.

Pikmin: The Winds of Light
Ravenous Whiskerpillars appear in The Summoning Garden and The Spring of Serenity, both times near the Burgeoning Spiderworts.

Olimar's notes

 * "Strange enough, it seems that these Whiskerpillars have a certain set of reflexes that make them twitch, even when they are dead. Perhaps they still have a ravenous appetite for berries, even when dead?"

Pikmin V
Ravenous Whiskerpillars appear in their usual capacity throughout the Forest of Seeming region of Pikmin V. They have received one notable upgrade, in defiance of Olimar's previous notes, which is the ability to complete their metamorphosis into an adult. If a Whiskerpillar consumes ten Spiderwort berries of any kind and lives to the end of the day, it will pupate into a Whiskercoon the following day. If the Whiskercoon is not destroyed that day, it will become a Ravenous Whiskerfly on the following day as well.