The term CATERPILLAR is used to describe a variety of different insects. The most common type of caterpillar is the LARVA of a butterfly or moth, which is typically WORM-like in shape and has a segmented body. Other types of caterpillars include grubs, webworms, inchworms, and woollybears. Grubs are the larvae of beetles, while webworms are the larvae of moths that spin webs around their food sources. Inchworms are the larvae of geometer moths, and woollybears are the larvae of tiger moths. All of these caterpillars have distinct characteristics and behaviors that make them unique.