Pennsylvania Ambush Bug

Pennsylvania Ambush Bug

Phymata pennsylvanica

Daily sighting probability <5% · Rare
at Chicago

In 3 days ~10% in a week ~20%

56 Verified sightings at Chicago
August Best month

About the Pennsylvania Ambush Bug

Phymata pennsylvanica, known generally as the Pennsylvania ambush bug or Pennsylvania jagged ambush bug, is a species of ambush bug in the family Reduviidae. It is found in North America. It is known to prey on a common hoverfly, Syritta pipiens. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Detroit 🇺🇸 United States
~10%
2 Boston 🇺🇸 United States
<5%
3 Chicago 🇺🇸 United States
<5%
4 Toronto 🇨🇦 Canada
<5%
5 New York City 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Pennsylvania Ambush Bug in Chicago?

Rare

Under 5% of wildlife watchers report a Pennsylvania Ambush Bug sighting in Chicago on a given day, based on 56 verified sightings from GBIF citizen-science data. It is the 226th most-seen of the 978 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.

When is the best time to see a Pennsylvania Ambush Bug in Chicago?

July to September

In those months about 10% of wildlife watchers report a Pennsylvania Ambush Bug in Chicago on a given day, against under 5% in October to June, the lowest months.

Is Chicago the best place to see a Pennsylvania Ambush Bug?

3rd of 5

Of the 5 cities where we can rate Pennsylvania Ambush Bug sightings, Chicago ranks 3rd at under 5%. The best odds are in Detroit (United States, about 10%) and Boston (United States, under 5%).

Where does the Pennsylvania Ambush Bug sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Pennsylvania Ambush Bug is recorded against all the insects logged in Chicago (56 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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