Caterpillars are larva for butterflies and moths. There are hundreds, maybe even thousands of types of caterpillars. Some of which consist of monarch, common buckeye, american butterfly, the green leaf, chicken pox, green leaf, spiny oak, ands stinging rose.
Caterpillars are the larval forms of various butterflies and moths. Caterpillars eventually turn into butterflies or moths. In terms of a list, which would quite long, any moth or butterfly would be included. Whatsthatbug is a great website that has terrific photographs of various caterpillars.
The short list of poisonous and nonpoisonous caterpillars include spiny oak, stinging rose, buck moth, cecropia moth, azaleas, saddleback, lo Moth, old world swallowtail, monarch, and the tetrio sphinx.
Common buckeye, American butterfly, The green leaf caterpillar, The Monarch Caterpillar, The Spotted Caterpillar, The chicken pox caterpillar, Saddle Back can sting as well as Slug and Spiney Oak caterpillars. The list goes absolutely endlessly on and on!