Bark scorpion bites in Arizona
Arizona has 1,617 verified bark scorpion records in the GBIF biodiversity database — one of the highest counts in the country. Sightings concentrate in April, May, July, August. The bite itself appears immediate burning pain and lasts pain and tingling can persist 24 to 72 hours.
| Verified records | 1,617 |
|---|---|
| Peak sightings | April, May, July, August |
| State bite season | March to November |
| Active | night |
| Habitat | the Southwest, especially Arizona — under bark, rocks, in block walls, and indoors in shoes and bedding |
| Bite appears | immediate burning pain |
Identifying it in Arizona
The distinguishing feature is the mismatch: severe burning pain and tingling with almost nothing to see. Tapping the site sharply increases the pain, which clinicians use as a bedside sign.
Locally, the species most often confused with it are honey bee sting, wolf spider bite, paper wasp sting — all of which are also recorded in Arizona.
Seek medical care if
- roving eye movements, slurred speech, muscle twitching or difficulty swallowing — emergency, especially in children
- breathing difficulty
- any sting in a young child or an older adult
What else it could be in Arizona
These are recorded in Arizona too and are the ones most often confused with it here. The differences below are the ones that actually separate them.
| Bark scorpion sting | Black widow spider bite | |
|---|---|---|
| Pattern | single site | single site |
| Where on body | hands, feet — commonly a bare foot at night or a hand into a stored item | hands, forearms, legs — usually where a hand reached into a dark space |
| Appears | immediate burning pain | a sharp pinprick, then pain building over 30 to 60 minutes |
| Records here | 1,617 | 3 |
Season in Arizona specifically
Records in Arizona concentrate in April, May, July, August, which is what local sighting data shows rather than a national average — seasonality shifts substantially with latitude. The general bite season in Arizona runs March to November.
Because the Southwest, especially Arizona — under bark, rocks, in block walls, and indoors in shoes and bedding, exposure in Arizona 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.
Care
- wash and apply a cold pack
- over-the-counter pain relief for a simple sting in a healthy adult
- emergency care for a child, or for any neurological symptom — antivenom exists
Avoiding them in Arizona
- shake out shoes, towels and bedding
- shoes and a torch outdoors at night
- seal gaps under doors; they can pass through a credit-card-width crack
Questions
When are bark scorpions active in Arizona?
Arizona records peak in April, May, July, August. The general bite season in Arizona runs March to November.
Are they common in Arizona?
Arizona accounts for 1,617 verified records in GBIF, ranking it 1st among states for this species. Records reflect reporting effort as well as abundance.
What does the bite look like?
often no visible mark at all — pain out of proportion to what can be seen, minimal redness. Single site.
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.
iPhone and iPad. Free to download.