Sagebrush Checkerspot (Chlosyne acastus) is in the Brush-footed Butterflies family (Nymphalidae). Across the U.S., iNaturalist users have logged 1,956 research-grade observations of it in our sample, peaking in April.
Seasonal pattern in the national data: seasonal. Counts also reflect when people are out photographing, so compare months within a state rather than across states.
When to photograph Sagebrush Checkerspot: observations by month (U.S.)
About Sagebrush Checkerspot
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.From Wikipedia via iNaturalist — article, CC BY-SA.
Sagebrush Checkerspot by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| California | 670 | April | Mar–Apr |
| Arizona | 280 | March | Mar–Apr |
| Utah | 233 | May | Apr–Jun |
| Washington | 204 | May | Apr–Jun |
| Nevada | 196 | April | Mar–May |
| Colorado | 110 | May | May–May |
| New Mexico | 79 | April | Apr–May |
| Oregon | 77 | May | May–Jun |
| North Dakota | 61 | June | May–Jul |
| Idaho | 22 | May | May–May |
| Montana | 13 | May | May–Jul |
| Wyoming | 6 | June | May–Jul |
| South Dakota | 5 | July | May–Aug |
Main season = months with at least 30% of the state's peak-month count.
Related butterflies (Brush-footed Butterflies)
Monarch
Gulf Fritillary
Common Buckeye
Red Admiral
Pearl Crescent
Painted Lady
American Lady
Variegated Fritillary
Photography tips
- Butterflies are sluggish on cool mornings — the best time for close approaches.
- Keep the sensor parallel to the wings for edge-to-edge sharpness.
- Nectar plants in bloom are reliable places to wait.
FAQ
When is the best time to photograph Sagebrush Checkerspot?
Nationally, April has the most observations, with the main season from March to June.
Where is Sagebrush Checkerspot most often seen?
The most observations come from California, Arizona, Utah.