Three-Ribbed Darkling Beetle

Three-Ribbed Darkling Beetle

Eleodes tricostata

Daily sighting probability <5% · Rare
at Denver

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

28 Verified sightings at Denver
15 In 1 park From 2019 to 2026
August Best month
☀️ Diurnal When it's spotted

About the Three-Ribbed Darkling Beetle

Eleodes tricostata is a species of desert stink beetle in the family Tenebrionidae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Rocky Mountain National Park 🇺🇸 United States
~10%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Denver 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Three-Ribbed Darkling Beetle in Denver?

Rare

Under 5% of wildlife watchers report a Three-Ribbed Darkling Beetle sighting in Denver on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 158th most-seen of the 461 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 Three-Ribbed Darkling Beetle in Denver?

July to September

In those months about 10% of wildlife watchers report a Three-Ribbed Darkling Beetle in Denver on a given day, against under 5% in October to June, the lowest months.

What time of day is best to see a Three-Ribbed Darkling Beetle?

Between 7 and 10 am

Across all the parks we cover, that three-hour window holds the most Three-Ribbed Darkling Beetle sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Three-Ribbed Darkling Beetle?

Only Denver, in our data

Denver is the only city on Wallace's Line with enough records to rate Three-Ribbed Darkling Beetle sightings: under 5% of wildlife watchers there report one on a given day.

Which relatives of the Three-Ribbed Darkling Beetle live in Denver?

Same genus: Eleodes

The closest relatives of the Three-Ribbed Darkling Beetle that you can see in Denver (genus Eleodes, Desert Stink Beetles) are Red-Backed Darkling Beetle (about 10%) and Eleodes fusiformis (about 10%), with each one's daily chance of a sighting.

Where does the Three-Ribbed Darkling Beetle sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Three-Ribbed Darkling Beetle is recorded against all the insects logged in Denver (28 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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