Scorpion season in Texas runs roughly from April through October, peaking during the hottest months of June, July, and August. The striped bark scorpion is the species you’re almost certainly dealing with. It’s the most common scorpion in Texas and the only U.S. species with venom potent enough to cause serious symptoms, though stings are painful but rarely life-threatening for healthy adults.
When Scorpions Are Most Active
Scorpions are nocturnal hunters, and their activity ramps up as Texas temperatures climb in late spring. You’ll notice them most between dusk and dawn from May through September. During the daytime, they hide in cool, dark spots. At night, they come out to hunt insects, spiders, and other small prey.
The real spike in indoor sightings happens during the hottest stretches of summer. Striped bark scorpions don’t burrow like some species. Instead, they actively forage and roam, which means they’re more likely to wander into your living space. When attic temperatures soar, scorpions that have climbed walls or trees to reach your roofline may migrate downward into cooler living areas. That’s why many Texans first spot a scorpion on a wall, in a bathtub, or inside a shoe during a July heat wave.
Where They Hide Inside and Outside Your Home
Striped bark scorpions have flat bodies, which lets them squeeze into surprisingly tight spaces. Outdoors, they shelter under rocks, boards, fallen logs, and piles of dead vegetation. They’re strongly associated with debris and clutter near the ground. Indoors, the most common hiding spots include closets, garages, bathrooms, laundry rooms, and attics. They favor shoes, stacked boxes, folded towels, and any dark crevice where they can press their body flat against a surface.
Unlike many ground-dwelling scorpion species, striped bark scorpions are excellent climbers. They scale trees, fences, and exterior walls with ease, which is why they frequently end up in attics. From there, they can drop down through light fixtures, ductwork gaps, or any small opening into the rooms below. If you’re finding scorpions on upper floors or ceilings, they likely entered from the attic rather than through a ground-level gap.
How to Find Them With a Blacklight
Scorpions glow a bright blue-green under ultraviolet light, making a handheld UV flashlight one of the most effective detection tools you can buy. Their exoskeletons contain fluorescent compounds that absorb UV wavelengths and re-emit visible light. This fluorescence is so reliable that pest control professionals use it as a standard survey method.
For the best results, wait until at least an hour after sunset and walk your property slowly with a UV flashlight. Check exterior walls, foundation edges, window frames, and any landscaping features like rock beds or woodpiles. Indoors, scan baseboards, closet floors, and the perimeter of rooms, especially bathrooms and garages. A UV flashlight in the $15 to $25 range from any hardware store works fine. You’ll spot scorpions from several feet away, giving you distance you wouldn’t have with a regular flashlight.
Keeping Scorpions Out of Your Home
Physical exclusion is the most important long-term strategy. Scorpions enter through the same gaps that let in other pests, and their flat bodies mean they can exploit openings you might not notice. Key areas to inspect and seal include:
- Door and window gaps: Weather stripping wears down over time. Check the bottom seal on all exterior doors, especially garage doors, where gaps along the edges are common.
- Utility line penetrations: Anywhere plumbing, electrical, or cable lines enter your home is a potential entry point. Seal around these with appropriate caulk or foam.
- Foundation cracks: Even hairline cracks in a slab or pier-and-beam foundation can be wide enough for a scorpion.
- Weep holes: Brick homes in Texas have weep holes along the base of exterior walls for drainage and ventilation. These are common scorpion highways. You can install mesh screens or pest-specific weep hole covers that block entry while still allowing airflow and moisture drainage. Never seal weep holes completely, as they protect your home’s structural integrity.
- Exterior vents: Attic vents, soffit vents, and dryer vents should all have intact screens.
Landscaping choices matter too. Keep shrubs, tree branches, and ground cover trimmed back from exterior walls. Store firewood well away from your foundation. Remove piles of lumber, rocks, or yard debris where scorpions shelter during the day. Reducing the scorpion population near your home directly reduces the number that find their way inside.
Professional pest control can add another layer, combining detailed property inspections with targeted treatments around the perimeter and exclusion recommendations specific to your home’s construction.
What a Sting Feels Like
A striped bark scorpion sting causes immediate, sharp pain at the site, often described as similar to a wasp sting but with a distinctive burning quality. Numbness and tingling around the sting site are common and can spread along the affected limb. You may also notice slight swelling and warmth. For most healthy adults, symptoms stay localized and resolve within a few hours, though lingering numbness or tingling can persist for a day or two.
Young children and older adults face higher risk of a serious systemic reaction. Signs that venom is affecting the nervous system more broadly include muscle twitching or jerking, unusual head or eye movements, drooling, sweating, slurred speech, nausea, rapid heart rate, and difficulty breathing. In young children, inconsolable crying and restlessness are warning signs. These whole-body reactions are uncommon but require immediate medical attention.
Allergic reactions are another concern. Even if a previous sting caused only mild symptoms, a subsequent sting can trigger anaphylaxis, a severe allergic reaction involving hives, difficulty breathing, nausea, and vomiting. Anaphylaxis is a medical emergency regardless of the species involved.
First Aid for a Scorpion Sting
Start by washing the sting site with mild soap and water, then apply a cool compress to reduce pain. If the sting is on an arm or leg, rest the limb in a comfortable, supported position. An over-the-counter pain reliever like ibuprofen can help manage discomfort. Avoid sedatives or anything meant to calm anxiety, as these can mask symptoms of a more serious reaction.
If you’re having difficulty swallowing, take only small sips of water and monitor the symptom closely. If it doesn’t improve or worsens within an hour, seek medical care. Check that tetanus vaccinations are current for anyone who’s been stung.
If a child is stung, contact Poison Help at 800-222-1222 right away, even before symptoms develop. Most stings don’t require hospital treatment, but children who show signs of a systemic reaction may need intravenous medications for pain management, and scorpion antivenom is available for severe cases in both children and adults.
Texas Regions With the Most Scorpions
Scorpions live across most of Texas, but density varies significantly by region. The Hill Country, including areas around Austin, San Antonio, and Fredericksburg, is a hotspot due to its rocky limestone terrain, which provides ideal daytime shelter. West Texas and the Trans-Pecos region, including areas around Big Bend, are home to multiple scorpion species and consistently high populations. North Texas, including the Dallas-Fort Worth suburbs, also sees plenty of striped bark scorpions, particularly in newer developments built on previously undeveloped land.
Coastal and East Texas areas with heavy clay soils and higher humidity tend to have lower scorpion populations, though they’re not scorpion-free. If you’re in a region with rocky soil, native brush, or new construction that recently disturbed natural habitat, expect higher scorpion pressure during the warm months.