Paper wasps in Montana
Yes — paper wasps are recorded in Montana. The GBIF biodiversity database holds 164 verified paper wasp records from the state — ranking it 31st nationally. Sightings concentrate in July to September. Onset: immediate sharp pain. Duration: a few days for swelling.
| Verified records | 164 |
|---|---|
| Peak sightings | July to September |
| State bite season | May to September |
| Active | daytime |
| Habitat | open honeycomb nests under eaves, in shutters, on garden furniture and playground equipment |
| Bite appears | immediate sharp pain |
Paper wasp bites in Montana: what the mark looks like
Paper wasps are slimmer and longer-legged than yellowjackets and far less aggressive away from the nest — most stings happen when someone opens a shutter or reaches under an eave. The nest is an open, downward-facing honeycomb on a single stalk, unlike the enclosed grey ball of a hornet.
Locally, the species most often confused with it are mosquito bite, bald-faced hornet sting — all of which are also recorded in Montana.
Seek medical care if
Call emergency services now for difficulty breathing, swelling of the lips, tongue or throat, dizziness or fainting, or hives spreading away from the bite.
- breathing difficulty, throat tightness or faintness
- stings to the mouth or eye
- symptoms away from the sting site
What else it could be in Montana
These are recorded in Montana too and are the ones most often confused with it here. The differences below are the ones that actually separate them.
| Paper wasp sting | Bald-faced hornet sting | Yellowjacket sting | |
|---|---|---|---|
| Pattern | usually single | often several — the colony defends aggressively | single or several — this wasp can sting repeatedly |
| Where on body | hands, head, arms — often while gardening or opening a shutter | head, neck, arms | hands, face, neck |
| Appears | immediate sharp pain | immediate severe pain | immediate sharp pain |
| Records here | 164 | 167 | 6 |
Paper wasp season in Montana specifically
Records in Montana concentrate in July to September, which is what local sighting data shows rather than a national average — seasonality shifts substantially with latitude. The general bite season in Montana runs May to September.
Because open honeycomb nests under eaves, in shutters, on garden furniture and playground equipment, exposure in Montana 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 Montana
These are the 164 Montana records broken out by the month they were recorded — not a national curve redrawn for the state. Records appear in 9 of the 12 months here. The single busiest month is July with 43 records (28% of the state total).
| Month | Records | Share |
|---|---|---|
| February | 1 | <1% |
| March | 2 | 1% |
| April | 8 | 5% |
| May | 8 | 5% |
| June | 12 | 8% |
| July | 43 | 28% |
| August | 40 | 26% |
| September | 34 | 22% |
| October | 4 | 3% |
Counts are observations submitted to GBIF, not bites. They tell you when the animal is out and being noticed in Montana; they do not tell you how many people were bitten. The thinnest month with any record at all is February (1).
How Montana compares
Across the 50 states with any paper wasp records, Montana ranks 31st with 164. The state directly above it is Kentucky (165). Directly below is New Mexico (125). The highest count anywhere is California (6,484).
Inside Montana itself the picture is different again: of the 10 biting species we track with records here, this one is 4th and accounts for 12% of the 1,366 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
- cold pack, antihistamine, pain relief
- adrenaline auto-injector if previously prescribed
- keep the limb elevated to limit swelling
Avoiding paper wasps in Montana
- check under eaves and inside shutters before working there
- remove small nests early in the season, professionally if large
Questions
Are there paper wasps in Montana?
Yes. Montana accounts for 164 verified records in GBIF, ranking it 31st among the 50 states with any records for this species, just behind Kentucky (165). Within Montana it is 4th of the 10 biting species we track here, at 12% of the state's records. Records reflect reporting effort as well as abundance.
When are paper wasps active in Montana?
Montana records peak in July to September. The general bite season in Montana runs May to September.
What does the bite look like?
a red welt with a bright centre and firm swelling, red. Usually single.
Which month has the most sightings in Montana?
July, with 43 of the 164 Montana records (28%). Records appear in 9 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.
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