The saddleback caterpillar, (Acharia stimulea) is a slug caterpillar and is the larvae stage of a moth that is native to the eastern portion of North America.

The saddleback is the larval stage of the slug moth. It is also a urticating caterpillar with two types of venom. One venom is hemolytic that breaks down red blood cells and the other is a ...

This is a saddleback caterpillar, and they are one of our handful of species possessing irritating or stinging hairs or hollow spines on their body. Skip to content. All Sections.