Smooth Spider Beetle

Smooth Spider Beetle

Gibbium aequinoctiale

Daily sighting probability <5% · Rare
at Philadelphia

In 3 days ~10% in a week ~30%

23 Verified sightings at Philadelphia
February 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 Philadelphia?

Rare

Under 5% of wildlife watchers report a Smooth Spider Beetle sighting in Philadelphia on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 227th most-seen of the 632 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.

When is the best time to see a Smooth Spider Beetle in Philadelphia?

February–April and December

In those months about 10% of wildlife watchers report a Smooth Spider Beetle in Philadelphia on a given day, against under 5% in January and May–November, the lowest months.

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

Yes

Of the 7 cities where we can rate Smooth Spider Beetle sightings, Philadelphia has the highest daily chance: under 5%. Next come New York City (United States, under 5%) and Baltimore (United States, under 5%).

Which relatives of the Smooth Spider Beetle live in Philadelphia?

Same order: Coleoptera

The closest relatives of the Smooth Spider Beetle that you can see in Philadelphia (order Coleoptera, Beetles) are Asian Lady Beetle (about 30%), Common Green June Beetle (about 20%) and Oriental 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 Philadelphia (23 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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