The Arizona bark scorpion is the most venomous scorpion in North America and is commonly encountered in homes throughout the United States, particularly in Arizona. Unfortunately, due to their prevalence, encounters with them are common, especially in moist areas like bathrooms, laundry rooms or near riparian zones (the areas along rivers, streams, and other bodies of water). They are most active at night and are attracted to dark, damp places.
The Arizona bark scorpion typically measures between one to 1.5 inches in length. However, color is not a reliable way to identify them, as it can vary. One unique feature is their ability to glow a bright green under UV lighting. Scorpions will glow due to a natural substance in their exoskeleton, making UV lights useful for spotting them in the dark.
They can climb almost anything except clean plastic or glass. You'll often find them on ceilings, cement walls, or hidden in clothing and food storage areas. They are particularly dangerous because they can hide in unexpected places, making them a frequent visitor inside homes.
Scorpions, particularly the striped bark scorpion, are often found in homes across North America. They can hide in damp towels, pool areas and even clothing left on the floor. Being aware of these common locations can help reduce your chances of an encounter.
Bark scorpion stings can be especially dangerous for young children. Symptoms in children under 10 include intense pain, numbness and tingling. You might notice children rubbing their face or nose, indicating these sensations. More severe symptoms in young children can include rapid, jittery eye movements and excessive salivation.
Adults who are stung by a scorpion often experience local pain and burning without significant swelling or redness. Numbness and tingling can spread throughout the body, and some people may experience visual disturbances or difficulty swallowing. In rare cases, respiratory problems can occur, leading to respiratory arrest.
If you are stung by a scorpion, call the poison center at (800) 222-1222 immediately. They will guide you through first aid steps and monitor your condition to ensure there are no dangerous reactions.
To prevent encounters with scorpions in your home, especially in areas prone to scorpions like Arizona:
Planning to buy a home? Learn how to determine if a home has a scorpion problem in our Poison Prevention tips.
If you have questions, please call us directly at (602) 253-3334 or call (800) 222-1222 for your local poison center.
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