Larva is a secret OuiOui. Very few have been found before. Larva, unlike OuiOui, are a keychain. They do not contain a tail, ears, or feet. All they are is just a face with a bit of extra room. That's it.
Small, orange weasel-like entity with little to no brain, a distinct odor and webbing between the toes. Usually resides in bogs, swamps, and other eutrophic or otherwise stagnant wetlands.
"The Larva-Donkey was seen snivelling in the deep putrid bog emitting distinct, high-pitched mating signals to the surrounding donkeys"