Smooth Spider Beetle

Smooth Spider Beetle

Gibbium aequinoctiale

Daily sighting probability <5% · Rare
at Chicago

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

9 Verified sightings at Chicago
January Best month

About the Smooth Spider Beetle

Gibbium aequinoctiale, the smooth spider beetle, is a species of spider beetle in the family Ptinidae. It is found in the Caribbean, Europe and Northern Asia (excluding China), Central America, North America, and South America. It has been reported from many parts of the world as Gibbium psylloides. 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 Philadelphia 🇺🇸 United States
<5%
2 New York City 🇺🇸 United States
<5%
3 Baltimore 🇺🇸 United States
<5%
4 Boston 🇺🇸 United States
<5%
5 Toronto 🇨🇦 Canada
<5%
6 Chicago 🇺🇸 United States
<5%
7 Washington 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Smooth Spider Beetle in Chicago?

Rare

Under 5% of wildlife watchers report a Smooth Spider Beetle sighting in Chicago on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 669th 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 Smooth Spider Beetle in Chicago?

Any time of year

In every month with enough records, under 5% of wildlife watchers report a Smooth Spider Beetle in Chicago on a given day, so our monthly data shows no clear season.

Is Chicago the best place to see a Smooth Spider Beetle?

Among the best

Of the 7 cities where we can rate Smooth Spider Beetle sightings, Chicago ranks 6th at under 5%, level with the leaders once rounded. The best odds are in Philadelphia (United States, under 5%), New York City (United States, under 5%) and Baltimore (United States, under 5%).

Which relatives of the Smooth Spider Beetle live in Chicago?

Same order: Coleoptera

The closest relatives of the Smooth Spider Beetle that you can see in Chicago (order Coleoptera, Beetles) are Asian Lady Beetle (about 20%), Red Milkweed Beetle (about 20%) and Japanese Beetle (about 10%), with each one's daily chance of a sighting.

Where does the Smooth Spider Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Smooth Spider Beetle is recorded against all the insects logged in Chicago (9 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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