The Animatronic caterpillar manufacturer tells you that because adult caterpillars have fewer bristles and more larvae, scientists will name and arrange the larvae according to the bristles, so most of what you see on the encyclopedia are caterpillars that are divided into bristles. 

The body color of caterpillars is black and gray in addition to green. Also, you see white specks on its surface, usually its bristles. Animatronic caterpillar manufacturers tell you that if you see brightly colored caterpillars in the wild, there is a high probability that their bristles are poisonous. Some caterpillars have two pairs of small wings, usually the front wings are slightly larger than the hind wings, and the wings are covered with scales or bristles.
Animatronic caterpillar manufacturers tell you that most of their mouthparts are siphon-shaped, and some species of caterpillars have chewing-shaped mouthparts, that is, in the upper and lower jaws, one is more developed than the other. They have 6 small black spots on each side of their body, those are not bristles, but eyes. Animatronic caterpillar manufacturers tell you that caterpillars have well-developed antennae, especially filamentous antennae, which are covered with sensory organs of different shapes, some of which are used to distinguish smells, and some are responsible for touch and smell.
We all know that some animals are eliminated by nature, while others survive through evolution, and caterpillars are no exception. Animatronic caterpillar manufacturers tell you that the color of caterpillars is developed according to the laws of nature's survival. For example, a caterpillar named Papilio is a master of camouflage. Because of its color resembling a snake, predators often mistakenly think that they have encountered a snake. In addition, this caterpillar has a pair of tentacles that can emit scents, which natural enemies associate with the smell of snakes. And the tentacles are also inflated, looking like a snake sticking its tongue out.