Black widow spiders in Texas
Yes — black widow spiders are recorded in Texas. The GBIF biodiversity database holds 1,867 verified black widow spider records from the state — one of the highest counts in the country. Sightings concentrate in April, June, July. Onset: a sharp pinprick, then pain building over 30 to 60 minutes. Duration: symptoms usually settle within 2 to 3 days.
| Verified records | 1,867 |
|---|---|
| Peak sightings | April, June, July |
| State bite season | February to December |
| Active | the spider is nocturnal but bites when trapped against skin at any hour |
| Habitat | woodpiles, sheds, meter boxes, garden furniture, under eaves — undisturbed dark corners |
| Bite appears | a sharp pinprick, then pain building over 30 to 60 minutes |
Black widow spider bites in Texas: what the mark looks like
The bite itself is unimpressive — a pinprick and two faint punctures. What identifies it is what follows: pain that spreads from the bite into large muscle groups, classically severe abdominal cramping that has been mistaken for appendicitis. The spider is identifiable by the red hourglass on the underside of a glossy black abdomen.
Locally, the species most often confused with it are brown recluse spider bite, chigger bite, yellow sac spider bite — all of which are also recorded in Texas.
Seek medical care if
- severe muscle cramps in the abdomen, back or chest
- sweating, nausea, rising blood pressure
- any suspected bite in a child, an older adult or during pregnancy — seek care
What else it could be in Texas
These are recorded in Texas too and are the ones most often confused with it here. The differences below are the ones that actually separate them.
| Black widow spider bite | Brown recluse spider bite | Wolf spider bite | |
|---|---|---|---|
| Pattern | single site | single site | single site |
| Where on body | hands, forearms, legs — usually where a hand reached into a dark space | torso under clothing, upper arms, thighs — often where clothing was put on with the spider inside | hands, feet, lower legs |
| Appears | a sharp pinprick, then pain building over 30 to 60 minutes | often painless at first | immediate sharp pain |
| Records here | 1,867 | 1,203 | 652 |
Black widow spider season in Texas specifically
Records in Texas concentrate in April, June, July, which is what local sighting data shows rather than a national average — seasonality shifts substantially with latitude. The general bite season in Texas runs February to December.
Because woodpiles, sheds, meter boxes, garden furniture, under eaves — undisturbed dark corners, exposure in Texas tends to be concentrated in specific places rather than spread evenly — which is why a bite history ("where were you in the 24 hours before?") narrows the answer faster than the appearance of the mark.
Month by month in Texas
These are the 1,867 Texas records broken out by the month they were recorded — not a national curve redrawn for the state. Records appear in 12 of the 12 months here. The single busiest month is July with 306 records (17% of the state total).
| Month | Records | Share |
|---|---|---|
| January | 50 | 3% |
| February | 53 | 3% |
| March | 151 | 8% |
| April | 224 | 12% |
| May | 180 | 10% |
| June | 241 | 13% |
| July | 306 | 17% |
| August | 176 | 10% |
| September | 154 | 8% |
| October | 157 | 9% |
| November | 94 | 5% |
| December | 60 | 3% |
Counts are observations submitted to GBIF, not bites. They tell you when the animal is out and being noticed in Texas; they do not tell you how many people were bitten. The thinnest month with any record at all is January (50).
How Texas compares
Across the 37 states with any black widow spider records, Texas ranks 1st with 1,867. Directly below is Oklahoma (729).
Inside Texas itself the picture is different again: of the 22 biting species we track with records here, this one is 4th and accounts for 3% of the 70,626 records logged in the state. A species can be common nationally and marginal in one state, or the reverse — which is the whole reason this page exists separately from the national guide.
Care
- wash the area and apply a cold pack
- seek medical care for anything beyond mild local pain — antivenom exists and pain control matters
- do not apply a tourniquet or attempt to cut or suck the wound
Avoiding black widow spiders in Texas
- gloves when moving woodpiles, boxes or garden furniture
- shake out stored shoes and gloves
- reduce clutter in sheds and garages
Questions
Are there black widow spiders in Texas?
Yes. Texas accounts for 1,867 verified records in GBIF, ranking it 1st among the 37 states with any records for this species. Within Texas it is 4th of the 22 biting species we track here, at 3% of the state's records. Records reflect reporting effort as well as abundance.
When are black widow spiders active in Texas?
Texas records peak in April, June, July. The general bite season in Texas runs February to December.
What does the bite look like?
two small puncture marks with a pale centre and a red ring, red ring, sometimes blanching in the middle. Single site.
Which month has the most sightings in Texas?
July, with 306 of the 1,867 Texas records (17%). Records appear in 12 of the 12 months here. This counts sightings submitted to GBIF, not bites.
Get a photo assessment in the app
Everything above is free to read. The app adds what a page cannot: point your camera at the bite and get an assessment of the most likely cause, a severity read, and a day-by-day care plan — including the specific signs that mean you should be seen.
Download on the App Store — free
iPhone and iPad · Free to download · No account needed