and related species: Centruroides sculpturatus, C. vittatus, C. gracilis
Range: This is the bark scorpion group, common in the southern states from coast to coast, although they are found as far north as British Columbia.
Habitat: Scorpions are attracted to areas that provide shelter, moisture and their prey – mostly insects. Scorpions often enter homes in the spring and fall, but it is unclear why scorpions will invade homes at certain times of the year and not at others. Once inside the home, scorpions prefer hidden places with cover. Scorpions can enter buildings through 1/8-inch cracks. Outside, scorpions can be found in piles of lumber, bricks, brush and trash. Ornamental ground covers such as large stones, mulch and bark harbor scorpions. They are active at night, especially when temperatures are above 75ûF. One can inspect an area at night with a flashlight to locate scorpions. Wear protective gloves and boots and look under rocks and loose tree bark, and around firewood, lumber or other debris piled outside.
Health risks: Most scorpions that invade homes or other buildings are not dangerous. While they will sting if someone accidentally contacts them, their sting is seldom more painful than that of a wasp or honeybee. There is one dangerous (deadly) species (C. sculpturatus) in southern Arizona and adjacent areas of Texas, California and New Mexico.
Management: Apply Talstar® where scorpions are seen, such as cracks and crevices in walls. They will go to moisture, especially under dry weather conditions. One technique is to concentrate scorpions into a preferred habitat by spreading wet burlap or cloth on the ground near suspected infested areas. By grouping scorpions, chemical sprays can be applied to the collected individuals.
Download our Best Management Practices sheet for more information.