![The caterpillar relies on its appearance to deter attackers and, when disturbed, it aggressively twists and writhes on the ground to defend itself. In its final, less terrifying form, the regal moth displays autumnal-colored wings in shades of deep orange with gray stripes and yellow spots. (Art by Jay B. Bauer)](https://secure.caes.uga.edu/news/multimedia/images/9297/HickoryHornedHalloweenRwduced.jpg)
Hickory Horned Devil
With a name that conjures the spookiest Halloween imagery, the hickory horned devil (Citheronia regalis) caterpillar is a marvel of nature's creativity, boasting a fearsome-looking appearance that is both off-putting and intriguing. This time of year, unsuspecting passersby may have the rare chance to spot this spectacular caterpillar as it drops from trees.