Scorpions are present in the Houston area, and the question of their presence frequently arises among residents. While encounters are not as common as in more arid parts of Texas, understanding the local species is important for prevention. This article provides clarity on the scorpion species most likely to be encountered, the risks associated with their sting, and practical steps residents can take to minimize encounters around their homes.
Scorpions Confirmed: Common Species in the Houston Area
The vast majority of scorpions found in and around Houston belong to the Striped Bark Scorpion (Centruroides vittatus). This species is the most widespread in Texas and is the one most likely to enter residential areas. They are relatively small, typically measuring between two and three inches in length, and vary in color from pale yellow to tan. The most distinctive feature is the presence of two broad, dark longitudinal stripes running down the length of the body.
Unlike desert species, the Striped Bark Scorpion prefers cool, moist environments. Outdoors, they are commonly found under rocks, logs, debris, and woodpiles, seeking refuge from heat. Their ability to climb allows them to gain access to structures through tree branches or shrubs, often ending up in attics or wall voids.
Assessing the Risk: Understanding Scorpion Stings
The sting of the Striped Bark Scorpion is considered non-lethal to healthy adults, often compared to a severe wasp sting. Symptoms are usually localized to the immediate area, including intense pain, a burning sensation, and temporary swelling. Tingling or numbness at the sting site are also common reactions to the venom.
While most stings cause only minor discomfort, severe systemic symptoms can occur, particularly in small children, the elderly, or those with known allergies. These rare reactions can include muscle twitching, difficulty breathing, nausea, and vomiting. If severe symptoms like breathing trouble or widespread muscle spasms appear, or if the victim is a small child, emergency medical attention should be sought immediately. For minor stings, first aid involves cleaning the wound thoroughly with soap and water and applying a cool compress or ice pack to reduce pain.
Practical Steps for Home Exclusion
Minimizing encounters relies heavily on exclusion and habitat reduction around the property. Scorpions can enter homes through surprisingly small openings, so sealing all cracks and gaps in the foundation, around utility pipes, and under doors is an effective preventative measure. Installing tight-fitting weather stripping on doors and windows prevents them from squeezing inside.
Outside the home, scorpions seek shelter and moisture, making the elimination of potential hiding spots highly effective. This includes removing piles of lumber, stacked stones, and any yard debris that sits directly on the ground. Since these arachnids are nocturnal, accidental indoor encounters often happen when they seek shelter in shoes or clothing left on the floor. Shaking out shoes, clothes, and towels before use is a practical way to avoid a painful surprise.