Bark Scorpion

Centruroides sculpturatus

The Bark scorpion is a small, slender, and highly venomous scorpion, light tan to yellowish in colour with darker markings along the body. It has a thin tail, long pincers, and is nocturnal. Known for its climbing ability, it’s one of the few scorpions in North America that regularly scales walls, trees, and even ceilings.

HEAD AND BODY LENGTH: 6.5 to 8 centimetres (2.5 to 3.25 inches)

HEIGHT AT SHOULDER: N/A (not applicable to invertebrates)

TAIL LENGTH: About half its body length, curved upward, ending in a venomous stinger

WEIGHT: Less than 2 grams

Conservation Status: IUCN

Distribution

Widely distributed across the Sonoran Desert region, particularly in Arizona, and extending into surrounding areas of the southwestern United States and northern Mexico.

Habitat

Prefers warm, dry desert environments with plenty of crevices to hide in—such as under rocks, bark, logs, and debris. In urban areas, they can be found in homes, gardens, and wood piles. They are excellent climbers and often hide in vertical cracks or under tree bark.

Diet

Carnivorous, feeding on insects, spiders, and other small arthropods. Bark scorpions use their pincers to grab prey and their venomous sting to immobilize it.

Reproduction

Mating typically occurs in the warmer months. After a complex courtship dance, females give birth to live young (usually 25–35) which ride on the mother’s back until their first moult. The young become independent within a couple of weeks.