Cottonwood Borer

Cottonwood Borer

Plectrodera scalator

Daily sighting probability <5% · Rare
at San Antonio

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

48 Verified sightings at San Antonio
June Best month

About the Cottonwood Borer

The cottonwood borer (Plectrodera scalator) is a species of longhorn beetle found in the United States east of the Rocky Mountains that feeds on cottonwood trees. It is one of the largest beetles in North America, with lengths reaching 40 millimetres (1.6 in) and widths, 12 mm (0.47 in). It is the only species in the genus Plectrodera. 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 Austin 🇺🇸 United States
~10%
2 San Antonio 🇺🇸 United States
<5%
3 Dallas 🇺🇸 United States
<5%
4 Houston 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Cottonwood Borer in San Antonio?

Rare

Under 5% of wildlife watchers report a Cottonwood Borer sighting in San Antonio on a given day, based on 48 verified sightings from GBIF citizen-science data. It is the 216th most-seen of the 697 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 Cottonwood Borer in San Antonio?

June

In that month about 20% of wildlife watchers report a Cottonwood Borer in San Antonio on a given day, against under 5% in August to April, the lowest months.

Is San Antonio the best place to see a Cottonwood Borer?

2nd of 4

Of the 4 cities where we can rate Cottonwood Borer sightings, San Antonio ranks 2nd at under 5%. The best odds are in Austin (United States, about 10%).

Where does the Cottonwood Borer sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Cottonwood Borer is recorded against all the insects logged in San Antonio (48 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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