Pseudouroctonus is a genus of scorpions belonging to the family Vaejovidae. These scorpions are commonly found in the southwestern United States and northern Mexico. They are small to medium-sized, measuring around 2 to 3 inches in length, and are known for their pale yellow to reddish-brown coloration. Pseudouroctonus scorpions are nocturnal predators, feeding on small insects and other arthropods.