Floridians Warned of Venomous Puss Caterpillar Invasion

As of October 3rd, 2025, Florida officials are urgently warning residents to steer clear of a venomous caterpillar species that has been spotted in the state. The "puss caterpillar" may look soft and fuzzy, but underneath its innocuous exterior lies a dangerous threat.

These creepy-crawlies are equipped with stiff spines connected to poison glands. If a person comes into contact with the caterpillar's venomous spines, they can break off and become lodged in the skin, causing intense pain. Floridians have shared their horrifying experiences with these pests, describing the agony of being stung as "excruciating" and "hysterically painful."

Adding to the danger, puss caterpillars are notoriously difficult to spot, as they typically measure just an inch in length and blend seamlessly into their surroundings on oak, citrus, and elm trees. Experts warn that the caterpillars are very much a part of Florida's native wildlife and should be observed from a safe distance.

While a sting from a puss caterpillar may require medical attention, the state's Poison Control Center has provided guidance for anyone who encounters one of these venomous creatures. Floridians are advised to exercise extreme caution when working outdoors, as the caterpillars are known to emerge twice a year - once in the fall and again in the spring.