Bramble Mason Wasp

Bramble Mason Wasp

Ancistrocerus adiabatus

Daily sighting probability ~10% · With luck
at Boston

In 3 days ~20% in a week ~40%

115 Verified sightings at Boston
60 In all 4 parks From 2019 to 2026
October Best month
☀️ Diurnal When it's spotted

About the Bramble Mason Wasp

Ancistrocerus adiabatus is a species of potter wasp. Adults grow up to 11 mm (0.433 in) in length. This species is multivoltine and has been witnessed migrating. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Point Pelee National Park 🇨🇦 Canada
~10%
2 Acadia National Park 🇺🇸 United States
~10%
3 Shenandoah National Park 🇺🇸 United States
~10%
4 Great Smoky Mountains National Park 🇺🇸 United States
<5%

Cities Where Found

# City Country Daily sighting probability
1 Boston 🇺🇸 United States
~10%
2 New York City 🇺🇸 United States
~10%
3 Baltimore 🇺🇸 United States
~10%
4 Minneapolis [Saint Paul] 🇺🇸 United States
~10%
5 Washington 🇺🇸 United States
<5%
6 Toronto 🇨🇦 Canada
<5%
7 Philadelphia 🇺🇸 United States
<5%
8 Chicago 🇺🇸 United States
<5%
9 Montreal 🇨🇦 Canada
<5%
10 Sacramento 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Bramble Mason Wasp in Boston?

With luck

About 10% of wildlife watchers report a Bramble Mason Wasp sighting in Boston on a given day, based on 115 verified sightings from GBIF citizen-science data. It is the 141st most-seen of the 1200 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.

When is the best time to see a Bramble Mason Wasp in Boston?

June to October

In those months about 10% of wildlife watchers report a Bramble Mason Wasp in Boston on a given day, against under 5% in November to May, the lowest months.

What time of day is best to see a Bramble Mason Wasp?

Between 10 am and 1 pm

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

Is Boston the best place to see a Bramble Mason Wasp?

Yes

Of the 11 cities where we can rate Bramble Mason Wasp sightings, Boston has the highest daily chance: about 10%. Next come New York City (United States, about 10%) and Baltimore (United States, about 10%).

Where does the Bramble Mason Wasp sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Bramble Mason Wasp is recorded against all the insects logged in Boston (115 verified sightings), 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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