Arizona Bark Scorpions in Phoenix, AZ
Centruroides sculpturatus
Bark scorpions are the most venomous scorpion in the U.S. Learn how to identify them and how Antidote Pest Solutions keeps them out of your home.
Notes: From a Phoenix, AZ Exterminator
Appearance
The Arizona bark scorpion is slender and tan to yellowish-brown, typically 2–3 inches long, with a segmented tail that curls upward and thin, pincer-like claws. They glow bright blue-green under UV/black light, which pest professionals use to locate them at night.
Harborage
Bark scorpions are nocturnal and hide in woodpiles, rock landscaping, block wall voids, palm trees, and under debris during the day. Unlike most scorpion species, they can climb — meaning they're often found on walls, ceilings, and inside shoes, closets, and bedding.
Are They Dangerous?
Yes — the Arizona bark scorpion is the most venomous scorpion in the United States. A sting causes intense, localized pain, numbness, and tingling, and can cause more severe reactions in children, the elderly, and sensitive individuals. Medical attention is recommended for any sting.
Treatment
Scorpion control requires more than a single spray — it takes habitat modification, exclusion, and ongoing perimeter treatment. Antidote Pest Solutions offers targeted scorpion control and black-light inspections to find and treat where they're hiding. Talk to one of Antidote Pest's Service Pro's and sleep easier tonight.
Prevention Tips
Seal cracks around windows, doors, and the foundation with caulk
Install door sweeps and weatherstripping on all exterior doors
Remove rock piles, woodpiles, and leaf litter close to the house
Trim trees and shrubs so branches don't touch the roof (they climb well)
Use yellow or sodium-vapor bulbs outdoors, which attract fewer insects for scorpions to eat
Check and shake out shoes, towels, and bedding, especially after items sit outside
Keep block walls and expansion joints caulked, since scorpions travel through them between yards
Behavioral Notes
Arizona bark scorpions glow bright blue-green under UV/blacklight, which is how most nighttime inspections find them.
They're the only scorpion species in the U.S. capable of climbing smooth vertical surfaces like stucco and drywall, which is how they end up on walls and ceilings indoors.
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