Chlosyne acastus
In 3 days ~30% in a week ~60%
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 |
With luck
About 10% of wildlife watchers report a Sagebrush Checkerspot sighting in Grand Canyon National Park on a given day, based on 23 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 36th most-seen of the 143 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
April
In that month about 30% of wildlife watchers report a Sagebrush Checkerspot in Grand Canyon National Park on a given day, against under 5% in November to January, the lowest months. That is one of Grand Canyon National Park's driest months, with about 10 mm of rain against 40 mm in March.
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.
4th of 4
Of the 4 parks where we can rate Sagebrush Checkerspot sightings, Grand Canyon National Park ranks 4th at about 10%. The best odds are in Death Valley National Park (United States, about 30%), Joshua Tree National Park (United States, about 30%) and Zion National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Sagebrush Checkerspot is recorded against all the insects logged in Grand Canyon National Park (23 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.
