Chlosyne acastus
In 3 days ~70% in a week ~90%
Chlosyne acastus, the sagebrush checkerspot, is a butterfly of the family Nymphalidae that is found in North America. They range from western United States east to Nebraska and north to southern Alberta. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Death Valley National Park | 🇺🇸 United States | |
| 2 | Joshua Tree National Park | 🇺🇸 United States | |
| 3 | Zion National Park | 🇺🇸 United States | |
| 4 | Grand Canyon National Park | 🇺🇸 United States |
Possible
About 30% of wildlife watchers report a Sagebrush Checkerspot sighting in Joshua Tree National Park on a given day, based on 201 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 190 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.
April
In that month about 50% of wildlife watchers report a Sagebrush Checkerspot in Joshua Tree National Park on a given day, against under 5% in June–August and November–December, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Sagebrush Checkerspot sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 parks where we can rate Sagebrush Checkerspot sightings, Joshua Tree National Park ranks 2nd at about 30%, level with the leaders once rounded. The best odds are in Death Valley National Park (United States, about 30%).
GBIF citizen-science records
It is estimated from how often the Sagebrush Checkerspot is recorded against all the insects logged in Joshua Tree National Park (201 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.
