Ancistrocerus campestris
In 3 days ~20% in a week ~40%
Ancistrocerus campestris is a species of potter wasp. Adults grow up to 10 mm (0.394 in) in length. Quickly identified by the coloration on the rear of its thorax which is reminiscent of a smiley face. Preys on the caterpillars of Amphisbatidae and Gelechiidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Point Pelee National Park | 🇨🇦 Canada | |
| 2 | Shenandoah National Park | 🇺🇸 United States | |
| 3 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | New York City | 🇺🇸 United States | |
| 5 | Chicago | 🇺🇸 United States | |
| 6 | Philadelphia | 🇺🇸 United States | |
| 7 | Toronto | 🇨🇦 Canada | |
| 8 | Dallas | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Ancistrocerus campestris sighting in Shenandoah National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 301st most-seen of the 723 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May and August–September
In those months about 10% of wildlife watchers report an Ancistrocerus campestris in Shenandoah National Park on a given day, against under 5% in June–July and October–April, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Ancistrocerus campestris sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 3 parks where we can rate Ancistrocerus campestris sightings, Shenandoah National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Point Pelee National Park (Canada, about 10%).
Same genus: Ancistrocerus
The closest relatives of the Ancistrocerus campestris that you can see in Shenandoah 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 Ancistrocerus campestris is recorded against all the insects logged in Shenandoah National Park (12 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.
