Caustic Dweevil are enemies in Pikmin 2 for the Nintendo GameCube and New Play Control for the Wii. This is one of the many Dweevils species, and all of them have different features. This one shoots out water when attacked. All of the Dweevils have a habit of carrying treasures and dead monsters around the sublevel. So, after it shoots out water, you should bring some blue Pikmin along and start throwing away. Another option is to fist-fight this thing to death with a captain seeing that it does not have much health. These and all the other dweevils can only be found underground, not above. These monsters can walk over ledges, and they fall to their doom.
"The caustic dweevil is one member of an insect family known for mimicking objects by carrying them on their backs. Several points of differentiation with other members of the species have been confirmed, such as body color and behavioral patterns, but none of these suggest major deviations in the creature's genetic structure. This makes it clear that it is a relative of the family. When attacked by enemies, the caustic dweevil spits out bodily fluids in response. Space suits corrode and oxidize when they come in contact with this highly acidic liquid."
"Inedible. Effects of consumption include uncontrollable arm flailing and enthusiastic dishwashing."