Philolithus actuosus
In 3 days ~20% in a week ~40%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Joshua Tree National Park | 🇺🇸 United States |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Philolithus actuosus sighting in Joshua Tree National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 90th most-seen of the 190 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August and September
In those months about 20% of wildlife watchers report a Philolithus actuosus in Joshua Tree National Park on a given day, against under 5% in February–June and December, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Philolithus actuosus sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Joshua Tree National Park, in our data
Joshua Tree National Park is the only park on Wallace's Line with enough records to rate Philolithus actuosus sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Tenebrionidae
The closest relatives of the Philolithus actuosus that you can see in Joshua Tree National Park (family Tenebrionidae, Darkling Beetles) are Armored Stink Beetle (about 30%), Eleodes grandicollis (about 20%) and Rough-Lipped Darkling Beetle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Philolithus actuosus is recorded against all the insects logged in Joshua Tree National Park (15 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.
