Stump, Root, Knotty, and Ash are the Beetle Boys that appear as one of the supporting characters in both FernGully: The Last Rainforest and FernGully 2: The Magical Rescue. They love to ride the beetles. The beetles are like motorcycles that they can ride on. They are also friends with Pips and are often seen around him most of the time.
Stump is voiced by Cheech Marin, Root is voiced by Tommy Chong, who sounds like Brad Garrett, the voice of the DC Animated Universe version of Lobo, Knotty is voiced by Townsend Coleman, the voice of the 1987 version of Michelangelo, and Ash is voiced by Danny Mann.