
Banded Hairstreak (Satyrium calanus) is in the Gossamer-winged Butterflies family (Lycaenidae). Across the U.S., iNaturalist users have logged 8,682 research-grade observations of it in our sample, peaking in June.
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 Banded Hairstreak: observations by month (U.S.)
About Banded Hairstreak
Satyrium calanus, the banded hairstreak, is a butterfly in the family Lycaenidae.From Wikipedia via iNaturalist — article, CC BY-SA.
Banded Hairstreak by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| New York | 1,149 | July | Jun–Jul |
| Ohio | 782 | June | Jun–Jul |
| Wisconsin | 551 | July | Jun–Jul |
| Pennsylvania | 550 | June | Jun–Jul |
| Michigan | 544 | July | Jun–Jul |
| Illinois | 528 | June | Jun–Jul |
| Massachusetts | 426 | July | Jun–Jul |
| Minnesota | 346 | July | Jun–Jul |
| Virginia | 318 | June | Jun–Jul |
| Maryland | 292 | June | Jun–Jul |
| Texas | 279 | May | May–May |
| Vermont | 272 | July | Jun–Jul |
| North Carolina | 244 | June | May–Jul |
| Connecticut | 243 | June | Jun–Jul |
| Tennessee | 218 | June | Jun–Jun |
| New Jersey | 194 | June | Jun–Jun |
| Kentucky | 193 | June | Jun–Jun |
| Indiana | 168 | June | Jun–Jul |
| Georgia | 162 | May | May–Jun |
| Florida | 158 | April | Apr–May |
| Missouri | 142 | June | Jun–Jun |
| New Hampshire | 142 | July | Jun–Jul |
| Maine | 109 | July | Jul–Jul |
| Iowa | 105 | June | Jun–Jul |
| Oklahoma | 84 | June | May–Jun |
| Arkansas | 68 | May | May–Jun |
| Colorado | 60 | July | Jul–Jul |
| West Virginia | 52 | June | Jun–Jul |
| Kansas | 42 | June | Jun–Jun |
| Nebraska | 41 | June | Jun–Jun |
| South Carolina | 41 | May | May–Jun |
| Alabama | 37 | May | May–Jun |
| Louisiana | 37 | April | Apr–May |
| Rhode Island | 35 | June | Jun–Jul |
| New Mexico | 23 | July | Jun–Jul |
| Delaware | 21 | June | Jun–Jun |
| District of Columbia | 12 | June | May–Jun |
| Mississippi | 9 | May | Apr–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 Banded Hairstreak?
Nationally, June has the most observations, with the main season from June to July.
Where is Banded Hairstreak most often seen?
The most observations come from New York, Ohio, Wisconsin.