
Greenish Blue (Icaricia saepiolus) is in the Gossamer-winged Butterflies family (Lycaenidae). Across the U.S., iNaturalist users have logged 3,544 research-grade observations of it in our sample, peaking in July.
Seasonal pattern in the national data: summer visitor / breeder. Counts also reflect when people are out photographing, so compare months within a state rather than across states.
When to photograph Greenish Blue: observations by month (U.S.)
About Greenish Blue
Icaricia saepiolus, the greenish blue, is a butterfly of the family Lycaenidae. It is found from the northwestern United States to southern Saskatchewan and Alberta.From Wikipedia via iNaturalist — article, CC BY-SA.
Greenish Blue by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| California | 1,487 | July | Jun–Jul |
| Colorado | 558 | July | Jun–Aug |
| Oregon | 474 | June | May–Jul |
| Wyoming | 206 | June | Jun–Jul |
| Washington | 200 | June | Jun–Jul |
| Idaho | 111 | June | May–Jul |
| Montana | 107 | July | Jun–Aug |
| New Mexico | 89 | July | Jun–Jul |
| Utah | 88 | June | Jun–Jul |
| Arizona | 70 | June | May–Jul |
| Alaska | 59 | June | Jun–Jul |
| Nevada | 55 | July | May–Aug |
| South Dakota | 20 | July | Jul–Jul |
| Minnesota | 14 | July | Jun–Jul |
Main season = months with at least 30% of the state's peak-month count.
Related butterflies (Gossamer-winged Butterflies)

Gray Hairstreak

Eastern Tailed-Blue

Red-banded Hairstreak

Marine Blue
Ceraunus Blue

Summer Azure

Western Pygmy-Blue

Reakirt's Blue
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 Greenish Blue?
Nationally, July has the most observations, with the main season from June to July.
Where is Greenish Blue most often seen?
The most observations come from California, Colorado, Oregon.