Caterpea

Caterpea (Korean: 완두벌레, wandubolre) is an Epic Pet that was released alongside its owner,, in the first half of the Happy Healthy Hamlet update. Giant vegetables will spawn on screen which will trigger Caterpea to swarm onto it to devour them, leaving behind Pea Jellies.

Story
''This Pet with a voracious appetite was found in Spinach Cookie's garden. Usually, she would have chased away such a nuisance, but there was just something about this Pet's munching cheeks that made her want to feed it some of the freshest veggies she had on hand. But what was in those veggies to make Caterpea this large and healthy?''

Trivia

 * Caterpea's name is a combination of "caterpillar" and "pea".
 * Interestingly, it also sounds like the name of the Pokémon, Caterpie.
 * Caterpea's internal name is "pet0152".