
Western Pine Elfin (Callophrys eryphon) is in the Gossamer-winged Butterflies family (Lycaenidae). Across the U.S., iNaturalist users have logged 2,574 research-grade observations of it in our sample, peaking in May.
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 Western Pine Elfin: observations by month (U.S.)
About Western Pine Elfin
The western pine elfin (Callophrys eryphon) is a North American butterfly that ranges from British Columbia east to Maine and south to southern California, Arizona, and New Mexico. Males are brown and females are orange-brown, with both having bold patterned hind wings. The top of the wings have dark bars with a lighter chevron shaped margin. The body is 19–32 mm in length and has no tail.From Wikipedia via iNaturalist — article, CC BY-SA.
Western Pine Elfin by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| California | 670 | June | Apr–Jul |
| Colorado | 495 | May | Apr–Jun |
| Oregon | 453 | May | Apr–Jun |
| Washington | 175 | May | Apr–Jun |
| Wyoming | 157 | June | May–Jun |
| Montana | 118 | May | May–Jun |
| Idaho | 97 | May | May–Jun |
| Arizona | 94 | May | May–Jun |
| New Mexico | 93 | May | May–Jun |
| Nevada | 67 | June | May–Jun |
| Nebraska | 49 | May | Apr–May |
| South Dakota | 46 | June | May–Jun |
| Utah | 27 | June | May–Jun |
| Michigan | 21 | May | May–May |
| Minnesota | 12 | May | May–Jun |
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 Western Pine Elfin?
Nationally, May has the most observations, with the main season from April to June.
Where is Western Pine Elfin most often seen?
The most observations come from California, Colorado, Oregon.