Eleodes suturalis
In 3 days ~70% in a week ~90%
Eleodes suturalis is a species of darkling beetle. As currently known, it is endemic to the United States. Their range extends from South Dakota to Texas and west to southwestern Wyoming, Colorado, New Mexico, and extreme southeastern Arizona, and probably into Mexico. Males measure 25–36 mm (1.0–1.4 in) and females 21.5–33.5 mm (0.8–1.3 in) in length. They can be easily identified by the distinctive red stripe which goes down the center of their flat elytra. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Badlands National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Denver | 🇺🇸 United States |
Possible
About 30% of wildlife watchers report a Red-Backed Darkling Beetle sighting in Badlands National Park on a given day, based on 33 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 2nd most-seen of the 37 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
June
In that month about 50% of wildlife watchers report a Red-Backed Darkling Beetle in Badlands National Park on a given day, against under 5% in March–April and October, the lowest months. That is one of Badlands National Park's wettest months, with about 60 mm of rain against 15 mm in January.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Red-Backed Darkling Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Badlands National Park, in our data
Badlands National Park is the only park on Wallace's Line with enough records to rate Red-Backed Darkling Beetle sightings: about 30% of wildlife watchers there report one on a given day.
Same genus: Eleodes
The closest relatives of the Red-Backed Darkling Beetle that you can see in Badlands National Park (genus Eleodes, Desert Stink Beetles) are Plains False Wireworm Beetle (about 20%) and Rough-Lipped Darkling Beetle (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Red-Backed Darkling Beetle is recorded against all the insects logged in Badlands National Park (33 verified sightings from 2019 to 2026), 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.
