This is a saddleback caterpillar (Acharia stimulea) most known for the striking coloration and pain-inducing spines! These caterpillars are capable of inflicting lasting and painful stings with their spines. Even color patterns are of bright warning colors, or aposematic. This moth larvae shows a variable marking on the posterior end sometimes resembling two eyespots that imitates an abstract facial expression. You can look but don’t touch this small, but mighty creature!