Red-Femured Milkweed Borer

Red-Femured Milkweed Borer

Tetraopes femoratus

Daily sighting probability ~20% · Possible
at Denver

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

301 Verified sightings at Denver
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 Denver?

Possible

About 20% of wildlife watchers report a Red-Femured Milkweed Borer sighting in Denver on a given day, based on 301 verified sightings from GBIF citizen-science data. It is the 18th most-seen of the 461 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 Denver?

August

In that month about 30% of wildlife watchers report a Red-Femured Milkweed Borer in Denver on a given day, against under 5% in November to May, the lowest months. That is one of Denver's wettest months, with about 50 mm of rain against 15 mm in January.

Is Denver the best place to see a Red-Femured Milkweed Borer?

Among the best

Of the 2 cities where we can rate Red-Femured Milkweed Borer sightings, Denver ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Salt Lake City (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 Denver (301 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.

← Back to Denver