Ancistrocerus catskill
In 3 days ~10% in a week ~30%
Ancistrocerus catskill,also known as the Catskill potter wasp, is a species of mason wasp in the genus Ancistrocerus. It is found in eastern North America. Ancistrocerus catskill contains the following subspecies: Ancistrocerus catskill albophaleratus Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Acadia National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Toronto | 🇨🇦 Canada | |
| 4 | Montreal | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Catskill Potter Wasp sighting in Acadia National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 347th most-seen of the 405 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
July and August
In those months about 10% of wildlife watchers report a Catskill Potter Wasp in Acadia National Park on a given day, against under 5% in September to June, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Catskill Potter Wasp sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Acadia National Park, in our data
Acadia National Park is the only park on Wallace's Line with enough records to rate Catskill Potter Wasp sightings: under 5% of wildlife watchers there report one on a given day.
Same genus: Ancistrocerus
The closest relatives of the Catskill Potter Wasp that you can see in Acadia National Park (genus Ancistrocerus) are Bramble Mason Wasp (about 10%) and Ancistrocerus capensis (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Catskill Potter Wasp is recorded against all the insects logged in Acadia National Park (7 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
