Lucanus mazama
In 3 days ~20% in a week ~50%
Lucanus mazama is a beetle of the family Lucanidae. Its common name is the cottonwood stag beetle. It is considered "scaraboid" but is not necessarily confined to deserts. They are often found in the wood chip ground covering at playgrounds. It is located primarily in the western and southwestern United States. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Salt Lake City | 🇺🇸 United States | |
| 2 | Denver | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Cottonwood Stag Beetle sighting in Salt Lake City on a given day, based on 79 verified sightings from GBIF citizen-science data. It is the 47th most-seen of the 242 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Cottonwood Stag Beetle in Salt Lake City on a given day, against under 5% in September to May, the lowest months. That is one of Salt Lake City's driest months, with about 20 mm of rain against 70 mm in December.
Between 5 and 8 am
Across all the parks we cover, that three-hour window holds the most Cottonwood Stag Beetle sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Yes
Of the 2 cities where we can rate Cottonwood Stag Beetle sightings, Salt Lake City has the highest daily chance: about 10%. Next come Denver (United States, under 5%).
Same order: Coleoptera
The closest relatives of the Cottonwood Stag Beetle that you can see in Salt Lake City (order Coleoptera, Beetles) are Seven-Spotted Lady Beetle (about 30%), Asian Lady Beetle (about 20%) and Red-Femured Milkweed Borer (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cottonwood Stag Beetle is recorded against all the insects logged in Salt Lake City (79 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.
