Boll's Potter Wasp

Boll's Potter Wasp

Eumenes bollii

Daily sighting probability ~10% · With luck
at Saguaro National Park

In 3 days ~20% in a week ~30%

17 Verified sightings at Saguaro National Park From 2019 to 2026
22 In all 2 parks
October Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Saguaro National Park 🇺🇸 United States
~10%
2 Big Bend National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 Sacramento 🇺🇸 United States
~10%
2 Mesa 🇺🇸 United States
~10%
3 Phoenix 🇺🇸 United States
~10%
4 Torreón 🇲🇽 México
~10%
5 Austin 🇺🇸 United States
<5%
6 Denver 🇺🇸 United States
<5%
7 Los Angeles 🇺🇸 United States
<5%
8 San Antonio 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Boll's Potter Wasp in Saguaro National Park?

With luck

About 10% of wildlife watchers report a Boll's Potter Wasp sighting in Saguaro National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 138th most-seen of the 354 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Boll's Potter Wasp in Saguaro National Park?

January, June–July and September–November

In those months about 10% of wildlife watchers report a Boll's Potter Wasp in Saguaro National Park on a given day, against under 5% in February–May, August and December, the lowest months.

What time of day is best to see a Boll's Potter Wasp?

Between 9 am and noon

Across all the parks we cover, that three-hour window holds the most Boll's Potter Wasp sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Is Saguaro National Park the best place to see a Boll's Potter Wasp?

Yes

Of the 2 parks where we can rate Boll's Potter Wasp sightings, Saguaro National Park has the highest daily chance: about 10%. Next come Big Bend National Park (United States, under 5%).

Which relatives of the Boll's Potter Wasp live in Saguaro National Park?

Same order: Hymenoptera

The closest relatives of the Boll's Potter Wasp that you can see in Saguaro National Park (order Hymenoptera, Ants, Bees, Wasps, and Sawflies) are Arizona Paper Wasp (about 20%), Yellow Paper Wasp (about 10%) and Desert Leaf-Cutter Ant (about 10%), with each one's daily chance of a sighting.

Where does the Boll's Potter Wasp sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Boll's Potter Wasp is recorded against all the insects logged in Saguaro National Park (17 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.

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