Brown Widow Spiders in Texas — Complete Guide

About Brown Widows in Texas

The brown widow (Latrodectus geometricus) is a relative newcomer that has spread through the southern United States over the past few decades and now thrives along the Texas Gulf Coast and in urban areas statewide. In many Houston and Gulf Coast neighborhoods it has quietly become the most common widow spider — the one in your mailbox, under the patio chair, and around the garage door track. It shares the black widow's body plan and messy web, but not its fearsome bite profile.

Identifying a Brown Widow

Brown widows are tan to medium brown — never the deep glossy black of a mature black widow — with a mottled geometric pattern on the abdomen, dark-banded legs, and an orange to yellow-orange hourglass on the underside. Body size is similar to a black widow (about 1/2 inch). Color alone can mislead, since young black widows are also brownish — which is why the egg sac matters.

The egg sac is the definitive identification. Brown widows produce spherical silk sacs covered in pointed projections — they look like tiny sea mines or jackfruit — while black widows make smooth, featureless tan spheres. A female brown widow produces up to 20 spiky sacs over a season, hanging them in her web; finding even one settles the ID.

Brown Widow vs Black Widow

Where Brown Widows Live Around Texas Homes

Brown widows favor protected spots at or below waist height, often closer to human activity than black widows tolerate: underneath patio furniture and BBQ grills, inside mailboxes and meter boxes, around garage door tracks, under eaves and window sills, in plant pots and garden hose reels, and inside recessed handles and curb ramps. Their webs are the same strong, chaotic tangle as other widows, usually with the spiky egg sacs hanging in them.

Brown Widow Bites

Brown widow venom is neurotoxic like the black widow's, but brown widows inject far less of it — and they are more reluctant to bite. Reported bites produce localized pain, redness, and swelling rather than the severe body-wide cramping of latrodectism. Standard bite care applies: wash with soap and water, cold compress, and watch for unusual symptoms. Children, seniors, and anyone with worsening symptoms should get medical advice; the Texas Poison Center Network (1-800-222-1222) can help you decide whether a visit is needed.

Brown Widow Prevention and Control in Texas

• Wear gloves when handling stored outdoor items, moving plant pots, or reaching into mailboxes and meter boxes.
• Knock down webs and remove egg sacs around the perimeter every 4 to 6 weeks in the warm months — critical with up to 20 sacs per female.
• Reduce clutter in garages and on patios; keep furniture and grills in open, frequently used positions.
• Seal ground-level gaps and install door sweeps; widows occasionally wander indoors.
• Switch exterior lights to yellow bug bulbs to cut the insect prey that supports widow populations.

Professional control matches black widow service: direct web treatment, de-webbing, and perimeter residual spray — $150 to $300 one-time or $100 to $175 per quarterly visit. See our black widow guide and spider control guide for details, or browse licensed spider control companies below.