Stating that scorpions inhabit a lot of the world is a misnomer. When people think of scorpions, they’ll think of two things. Desert and stinging, while the former is correct for the species that I am covering today, scorpions inhabit other areas not commonly thought of, such as tropical regions, and even caves!
Scorpions have inhabited the earth for millions of years. Currently there are approximately 1,400 recognized species according to a University of Arizona Study[i] only 15 species are currently kept in captivity[ii]. One of the more popular species for new keepers is the 
Arizona Hairy Scorpion Hadrurus arizonensis. The Hadrurus genus is sometimes known by another common name, Giant Hairy Scorpions; both adjectives are accurate as they are the largest species of scorpions found in North America and the setae or hairs are visible on the body. They are also sold as Hairy Scorpions or Desert Hairy Scorpion. The setae or hairs act as radar or antennae alerting them to prey and predators alike.
While it may be true that all “Hairy” Scorpions can be maintained in a similar manner it would present issues if you tried breeding two separate species that looked similar. With the Hadrurus spadix and Hadrurus arizonensis it would be hard to confuse the two species. It is not so easy to tell the difference between the Hadrurus spadix and Hadrurus obscurus while Hadrurus obscurus is rare it is seen in the industry. This is another reason why I encourage people to learn the Latin or scientific names of the species they want to keep. It avoids confusion when buying species of reptiles, insects, and amphibians. This begins our five part series on the captive care of Arizona Hairy Scorppions.
[i] http://ag.arizona.edu/pubs/insects/az1223/
[ii] http://blogs.thatpetplace.com/thatreptileblog/2009/02/04/scorpions-in-captivity-–-an-overview-of-popular-species-part-1/
Apartment Living & Reptiles 