You flipped on the bathroom light, saw something dark move across the tile, and now you want to know two things: what is it, and should you be worried. For most Austin and Hill Country homeowners, the answer is calmer than that first jolt of adrenaline suggests.

Quick answer: Most scorpions and spiders in Austin homes are not dangerous. The common local scorpion is the Texas striped bark scorpion, whose sting is roughly comparable to a bee or wasp sting for most people. Only two spiders here carry real medical concern: the brown recluse and the black widow.

Texas has no scorpion species considered lethal to people, according to Texas A&M AgriLife's field guide [1]. That one fact reframes most late-night encounters.

Start with the scorpion: the Texas striped bark

If you found a scorpion in Austin, it is almost certainly a Texas striped bark scorpion (Centruroides vittatus), the one species that lives across the entire state. Good scorpion spider identification in Austin usually begins here, since this is the animal people see indoors most.

Look for a pale yellowish to tan body with two broad, dark stripes running down the back, a dark triangle on the head, and slender pincers. Adults reach about 2.5 inches (roughly 60 mm) counting the tail, and males carry longer tails than females [1]. It is a smaller, thinner animal than the chunky desert scorpions people picture from Arizona.

Outdoors, striped bark scorpions shelter under rocks, boards, woodpiles, and leaf litter. Indoors they climb well, so they end up in attics and can drop into living space when attic temperatures spike in July and August [1]. They also collect in bathtubs and sinks, where the smooth sides trap them once they wander in. A cheap UV flashlight is the fastest way to find them at night, since their exoskeleton glows blue-green under ultraviolet light.

How worried should you be about a scorpion sting?

For most people, a striped bark scorpion sting hurts but is not dangerous. The University of Missouri Extension describes the sting as similar to a bee or wasp sting, producing pain, swelling, and redness that usually settle within a few hours [2]. AgriLife puts the range a bit wider, noting reactions from mild to strong, with local swelling and itching that can linger for several days [1].

The real caveat is allergy. As with a bee sting, a small number of people react far more strongly than the venom itself would explain. If a sting is followed by trouble breathing, swelling of the face or throat, widespread hives, or dizziness, treat that as a possible allergic reaction and get help quickly rather than waiting it out.

The spiders in Austin homes: which ones actually matter

Most spiders in an Austin house pose no medical risk and earn their keep by eating other insects. Two are worth learning to recognize, because they can send someone to a doctor: the brown recluse and the black widow.

Brown recluse (and the Texas recluse)

The brown recluse is yellowish to golden brown, with a body around 3/8 inch long and longer legs. Most people know the "violin" or "fiddle" mark on the top of the front body section, with the neck of the violin pointing back toward the abdomen [3]. That mark is a weak clue on its own, because plenty of ordinary brown spiders show vague dark patches. The reliable tell is the eyes: a recluse has six eyes arranged in three pairs, while most spiders have eight [3].

Recluses live up to the name. They hide in dark, undisturbed places: closets, storage boxes, stacks of stored clothing, behind furniture, and in attics and garages [3]. They are not aggressive, and almost every bite happens when one gets pressed against skin, usually in clothes left on the floor or bedding that hasn't been moved in a while [3]. Shaking out shoes and shirts that have sat in a closet is a habit worth keeping in an older Austin home.

Black widow

A mature female black widow is easy to identify once you know the two cues: a glossy, jet-black body and a reddish hourglass on the underside of her round abdomen [5]. The AgriLife field guide notes the hourglass can be reduced to remnants, so a partial red mark still counts [4]. The female runs about 3/8 inch in the body; males are much smaller, brown, and not a concern.

Widows favor undisturbed, protected spots close to the ground: woodpiles, water-meter boxes, the underside of patio furniture, garages, and sheds. Despite the reputation, the black widow is timid. AgriLife describes it as quite timid, attempting to escape rather than attack even when disturbed in its web [4]. Bites usually come from reaching blindly into a spot where one sits, so gloves earn their place when you move woodpiles or clean a shed.

When a sting or bite needs a doctor

You will not need a doctor for most scorpion stings or spider bites, but a handful of situations do call for one.

• A confirmed or suspected black widow bite. The Texas Department of State Health Services lists possible symptoms including abdominal cramping, muscle pain, profuse sweating, and tremors, because the venom is a neurotoxin that can act beyond the bite site [5]. Seek care.
• A confirmed or suspected brown recluse bite. These can produce a slow-healing wound with tissue damage at the site, sometimes with fever [5]. Early evaluation helps.
• Any bite or sting with spreading symptoms. Reactions beyond the local area, or any sign of an allergic response, warrant a call.

When you are unsure, the Texas Poison Center Network takes calls 24/7 at 1-800-222-1222, and your physician is the other good first stop [5]. Lower your threshold for young children, older adults, and anyone with a known venom allergy. Many wounds blamed on recluses turn out to be skin infections or other bites, since a confirmed spider bite requires seeing the spider do it.

When to call a professional

Call a professional when you cannot identify what you are seeing, when the sightings keep repeating, or when someone in the home is at higher risk. A single scorpion in the garage in August is normal for Central Texas, but a repeating pattern is the signal to act. Use this as a plain checklist:

• You have found a scorpion indoors more than once, or you are seeing them in bedrooms and living areas rather than just the garage.
• You have confirmed, or strongly suspect, a brown recluse or black widow inside, especially with kids, older adults, or pets in the home.
• Someone was stung or bitten and had more than a mild local reaction.
• You keep finding scorpions or spiders even after cleaning, decluttering, and sealing the obvious gaps.
• You cannot tell what you are looking at and want a trained eye.

The reason a one-off perimeter spray rarely settles a scorpion problem comes down to where the animals live. Striped bark scorpions shelter deep inside wall voids, attics, and outdoor debris, and they can go long stretches without feeding [1], so a foundation spray often misses them entirely. This is exactly why the EPA's IPM principles treat broadcast spraying as a last resort, behind prevention, monitoring, and targeted control, and note that sighting a single pest does not always mean treatment is needed [6]. The durable fixes are exclusion, sealing the gaps around weep holes, pipes, and door sweeps that let scorpions in, and habitat reduction, clearing the woodpiles and debris that hold them near the house.

Where Natran fits

Many Austin homeowners search for natural or eco-friendly scorpion and spider control, and what that phrase usually means in practice is prevention-first pest management. That is the approach Natran Green Pest Control is built around: Integrated Pest Management, where inspection and correct identification come before any treatment.

In practice, a technician inspects the structure for the entry points and harborage that scorpions and spiders actually use, then seals those gaps and cuts back the outdoor habitat that draws them in. The benefit is that you are removing the reasons pests get inside, so you deal with fewer of them in the living space over time. Monitoring and action thresholds decide when a targeted treatment is warranted, rather than a broad spray on a fixed calendar. For a homeowner, that means a plan matched to what your specific home is dealing with.

The takeaway

The scorpion in your bathtub is almost certainly a striped bark scorpion, and its sting lands in bee-or-wasp territory for most people. The vast majority of Austin spiders are no threat, and the two that are, the brown recluse and the black widow, are identifiable by specific cues: six eyes in three pairs on the recluse, a red hourglass under a glossy black body on the widow. Watch for allergic reactions, and call a professional when sightings repeat, when a high-risk person is involved, or when you cannot identify what you found.

Frequently asked questions

How do I tell a brown recluse from a common house spider?

Count the eyes and check the color. A brown recluse has six eyes arranged in three pairs, while most household spiders have eight, and its body is a single uniform tan to golden brown with a darker violin mark behind the head [3]. If the spider has banded legs, spots, or an eight-eye cluster, it is not a recluse. A close-up photo is usually enough to settle it.

Are scorpion stings dangerous to dogs and cats?

For most pets, a striped bark scorpion sting is painful but not dangerous, much like it is for people, since Texas has no scorpions considered lethal [1]. Expect local pain, swelling, and some pawing or licking at the spot. Watch for anything beyond that, such as heavy drooling, difficulty breathing, or tremors, and call your veterinarian if you see those signs or if a very small pet was stung.

Why do I keep finding scorpions in my bathtub?

Smooth porcelain traps them. Scorpions wander indoors looking for moisture and cooler temperatures, then slide into a tub or sink and cannot climb back out [1]. Finding them there does not mean they came up the drain; it means they are getting into the house through gaps elsewhere. Repeated tub sightings are a sign to check door sweeps, weep holes, and pipe penetrations for entry points.

What should I do right after a scorpion sting?

Wash the site with soap and water, apply a cold compress to limit swelling, and take an over-the-counter pain reliever if you need one. Most stings ease within a few hours [2]. Watch for signs of an allergic reaction, such as trouble breathing, facial swelling, or spreading hives, and call the Texas Poison Center Network at 1-800-222-1222 or your doctor if symptoms move beyond the sting site [5].

Can I handle spiders myself, or do I need a professional?

A stray house spider is fine to remove yourself, and shaking out stored clothing and decluttering closets goes a long way. Call a professional when you confirm a recluse or widow indoors, when sightings keep repeating, or when someone at higher risk lives in the home. The identification work matters most, because a trained inspection tells you what you are dealing with and where it is getting in.

Reference Sources

1. Texas A&M AgriLife, Field Guide to Common Texas Insects, "Striped Bark Scorpion." https://texasinsects.tamu.edu/striped-bark-scorpion/
2. University of Missouri Extension, "Scorpions" (G7364). https://extension.missouri.edu/publications/g7364
3. Texas A&M AgriLife, Field Guide to Common Texas Insects, "Recluse Spider." https://texasinsects.tamu.edu/recluse-spider/
4. Texas A&M AgriLife, Field Guide to Common Texas Insects, "Southern Black Widow Spider." https://texasinsects.tamu.edu/southern-black-widow-spider/
5. Texas Department of State Health Services (DSHS), "Spiders." https://www.dshs.texas.gov/disease-surveillance-epidemiology-section/zoonosis-control/animal-bites/venom/spiders
6. U.S. Environmental Protection Agency, "Integrated Pest Management (IPM) Principles." https://www.epa.gov/safepestcontrol/integrated-pest-management-ipm-principles