Austin is home to scorpions, and the species you’re most likely to encounter is the striped bark scorpion (Centruroides vittatus). It’s the most common scorpion in Texas and thrives in the rocky, semi-arid terrain of the Hill Country surrounding Austin. If you’ve spotted one in your home or yard, here’s what you need to know about the risks, how to handle a sting, and how to keep them out.
The Species You’ll Find in Austin
The striped bark scorpion is a small, pale yellow to tan scorpion with two dark stripes running down its back. Adults typically reach about 2 to 3 inches in length. They’re nocturnal hunters that feed on insects and spiders, spending the day hidden under rocks, bark, lumber, or anything that provides dark, cool shelter. In the wild, the limestone outcroppings and cedar-dotted landscape around Austin provide ideal habitat.
These scorpions are active from spring through fall, with peak activity during the warmest months. They become especially noticeable after periods of rain, when they may move to higher ground or seek drier shelter indoors.
How Dangerous Are Austin Scorpions?
The striped bark scorpion belongs to the bark scorpion family, the group responsible for the most medically significant stings in the United States. However, the species found in Austin is far less dangerous than its Arizona relative. Most stings cause localized pain, redness, swelling, and a burning or tingling sensation that fades within a few hours. Less than 5% of all scorpion stings require medical attention.
More serious symptoms are uncommon but possible. These include muscle twitching, irregular heartbeat, high blood pressure, and abdominal pain. Numbness spreading beyond the sting site or difficulty breathing are signs that warrant emergency care. Children and elderly adults are at higher risk for stronger reactions because of their smaller body size or weaker immune response. Of the roughly 1,500 scorpion species worldwide, only about 30 produce stings dangerous to humans, and the striped bark scorpion is generally on the milder end of that spectrum.
What to Do if You Get Stung
Clean the sting site with mild soap and water. Apply a cool compress to reduce pain and swelling, and rest the affected limb in a comfortable position. An over-the-counter pain reliever like ibuprofen can help manage discomfort. Avoid taking sedatives or anti-anxiety medications, as they can mask symptoms of a more serious reaction.
If a child is stung, contact your local poison control center at 800-222-1222. For adults, monitor symptoms for the first hour. Difficulty swallowing that doesn’t improve, numbness spreading through the body, or trouble breathing all call for immediate medical attention. It’s also worth checking that your tetanus vaccination is current.
Risks to Dogs and Cats
Pets encounter scorpions more often than their owners realize, especially cats that hunt at night and dogs that investigate dark corners with their noses. The good news: severe reactions in pets are rare with the species found in Austin. A veterinary emergency doctor at Texas A&M reported never seeing a dangerous or life-threatening scorpion envenomation in a dog or cat during more than four years of ER work.
The most common sign is sudden limping or holding a paw up. Many pets don’t feel sharp pain from the sting itself but experience something closer to a “fallen asleep” sensation in the affected limb. Swelling around the sting site and coughing are also typical responses. If your pet shows sudden lameness and swelling and you know scorpions are in the area, a veterinary exam is a reasonable step to rule out a more venomous species or a secondary reaction.
How Scorpions Get Inside Your Home
Scorpions can flatten their bodies to squeeze through surprisingly small gaps. In Austin homes, the most common entry points are cracks along foundations, gaps around doors and windows, openings where plumbing pipes enter walls, and spaces around utility lines. They’re drawn indoors by two things: moisture and prey. A home with leaky pipes, standing water, or a healthy population of insects and spiders is essentially a scorpion buffet with lodging.
The Hill Country construction style, with limestone foundations and older homes settled onto shifting soil, creates natural gaps that scorpions exploit. Ground-floor apartments and homes built on slabs are particularly vulnerable, as are properties near undeveloped land or greenbelt areas.
Keeping Scorpions Out
Prevention comes down to eliminating shelter, sealing entry points, and reducing the food supply that draws them in.
- Seal your perimeter. Caulk or weatherstrip gaps around doors, windows, and foundation cracks. Pay special attention to where pipes and wiring enter the house.
- Fix moisture problems. Repair leaky faucets, address poor drainage around the foundation, and make sure bathrooms and kitchens stay dry. Scorpions need water, and even small drips attract them.
- Clear outdoor shelter. Move woodpiles, rock stacks, and debris away from the house. Trim vegetation that touches exterior walls, and keep mulch beds thin near the foundation.
- Reduce insect prey. Outdoor lighting attracts the bugs scorpions eat. Switch to yellow or amber bulbs near entry doors, or move lights away from the house so insects (and the scorpions hunting them) congregate farther from your walls.
Inside the home, shake out shoes and clothing left on the floor, especially in closets or garages. Check bedding if your bed sits near a wall, and use sticky traps in corners and along baseboards to monitor scorpion activity.
Finding Scorpions With a Blacklight
One of the most effective ways to locate scorpions around your property is with a UV blacklight. Scorpions glow a bright blue-green under ultraviolet light, making them easy to spot at night even against complex backgrounds like gravel, mulch, or rock walls. This fluorescence comes from compounds in their exoskeleton that absorb UV light and re-emit it as visible light in the 450 to 500 nanometer range.
A handheld UV flashlight in the 350 to 400 nanometer range works well. Walk your property after dark, scanning foundation edges, window wells, porch areas, and landscaping. You’ll often find scorpions in places you’d never notice during the day. This is especially useful for identifying hot spots where scorpions consistently shelter, so you can target those areas with sealing or habitat removal. Inexpensive UV flashlights are available at most hardware stores and online retailers for under $15.