Red-Femured Milkweed Borer

Red-Femured Milkweed Borer

Tetraopes femoratus

Daily sighting probability ~20% · Possible
at Salt Lake City

In 3 days ~40% in a week ~70%

152 Verified sightings at Salt Lake City
August Best month

About the Red-Femured Milkweed Borer

Tetraopes femoratus is a species of beetle in the family Cerambycidae. It was described by John Lawrence LeConte in 1847. It is known from Mexico and the United States. 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 Salt Lake City 🇺🇸 United States
~20%
2 Denver 🇺🇸 United States
~20%

Before you go

What are the chances of seeing a Red-Femured Milkweed Borer in Salt Lake City?

Possible

About 20% of wildlife watchers report a Red-Femured Milkweed Borer sighting in Salt Lake City on a given day, based on 152 verified sightings from GBIF citizen-science data. It is the 17th most-seen of the 242 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.

When is the best time to see a Red-Femured Milkweed Borer in Salt Lake City?

July and August

In those months about 30% of wildlife watchers report a Red-Femured Milkweed Borer in Salt Lake City on a given day, against under 5% in November to May, the lowest months. Those are among Salt Lake City's driest months, with about 25 mm of rain a month against 70 mm in December.

Is Salt Lake City the best place to see a Red-Femured Milkweed Borer?

Yes

Of the 2 cities where we can rate Red-Femured Milkweed Borer sightings, Salt Lake City has the highest daily chance: about 20%. Next come Denver (United States, about 20%).

Where does the Red-Femured Milkweed Borer sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Red-Femured Milkweed Borer is recorded against all the insects logged in Salt Lake City (152 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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