Beetles (An American Tail)

The Beetles are minor antagonists in the first movie. They case Fievel through the sewers to eat him, but he loses them by going over a chasm. Many of the black beetles fell into the sewer lake and drowned, some were eaten by what appeared to be a piranha. Strangely they are photo-realistic, while in the same movie, Digit is a cartoony cockroach.