Centruroides is a scorpion in the family Buthidae, the bark scorpions. The female of the species reaches up to 10 centimeters in length, while the male can exceed 15 centimeters. It is variable in color (black, reddish, dark brown). This scorpion feeds on insects. It lives under rocks and tree bark. When given the opportunity it will live in the walls of houses and under rubbish piles in yards. Local effects from a sting can include pain, redness, itching, and swelling.