Bug-Eaten

Bug Eat and an unnamned rat are two stand-using animals from Part IV: Diamond is Unbreakable. While not having any evil intent, their natural instincts of needing to eat cause them to go after even humans as a food source.

About
After questioning the defeated Akira Otoishi about the arrow in his possession he lets out that he used it on some rats in the area to test it out. Worried, Jotaro brings Josuke with him to track them down for damage control.

Trivia

 * "Bug Eat" is a name given by Jotaro referring to the fact it has a hole in its ear. An english equivalent could be something along the lines of "Mothy".
 * The hole in its ear is probably a wound from The Arrow, making both rats stand users.