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What Is The Arizona Bark Scorpion?

Updated: Jun 2



The Arizona bark scorpion is the most venomous scorpion in the United States. Known for its excellent climbing abilities, these scorpions are found roaming the walls and ceilings of homes and cinderblock walls at night looking for food or seeking shelter in cooler locations.

All scorpions are venomous, but few more dangerous to humans than the Arizona bark scorpion. The Arizona bark scorpion produces a venom that acts as a neurotoxin and causes widespread damage to the body, including convulsions, irregular heartbeat, and respiratory paralysis. In many cases there is little or no pain at the site of the staying, and for symptoms do not occur for hours later. Death can also result in as little as 3 to 4 hours. Venom is exceedingly toxic and especially dangerous for young children and elderly individuals, also those that have auto immune diseases, though, some scorpions are capable of killing even a healthy adult. Further, scorpions sting quickly and repeatedly when disturbed.

With proper medical care, including administration of anti-venom, stings may not be life-threatening. However, if you hospitals outside the range of dangerous scorpions actually stock and tie venom; and the anti-venom itself may cause serious – sometimes fatal – allergic reactions if it is best for her serum, which many people are allergic. The effectiveness of first aid is uncertain.

The Arizona Bark Scorpion is an excellent climber, including climbing vertical surfaces. This is a homeowners nightmare as scorpions are often found inside homes, on windowsills, and ceilings at night. Scorpions have four pairs of walking legs, which are similar in structure. The leg is broken up into multiple parts. There are many spines and enlarged bristles at the end of the scorpion’s leg that help the scorpion hang onto concrete, bark, cinder, and plaster.

The Arizona bark scorpion can be as large as 4 inches long, with a slender body and slender pincers. They have 8 jointed legs and a pair of pedipalps used for grasping or sensing. These scorpions tend to be pale and yellow colored. In the dark, the Arizona Bark Scorpion fluoresce under ultraviolet light. The blue-green glow comes from a substance found in the hyaline layer, a very thin but super tough coating in a part of the scorpion’s exoskeleton called the cuticle.


If you want to keep scorpions out of your home, you have to use Scorpion Repel. A toxic free and chemical free clear application is applied to the base of your home, and scorpions cannot attach themselves to the application so they cannot climb up into your home. It is a one-time application that lasts for years.


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