
Essex Skipper (Thymelicus lineola) is in the Skippers family (Hesperiidae). Across the U.S., iNaturalist users have logged 6,353 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 Essex Skipper: observations by month (U.S.)
About Essex Skipper
The Essex skipper (Thymelicus lineola) is a butterfly in family Hesperiidae. In North America, it is known as the European skipper.From Wikipedia via iNaturalist — article, CC BY-SA.
Essex Skipper by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Minnesota | 941 | June | Jun–Jul |
| Michigan | 741 | June | Jun–Jul |
| Vermont | 634 | June | Jun–Jul |
| New York | 565 | June | Jun–Jul |
| Wisconsin | 533 | June | Jun–Jul |
| Montana | 460 | July | Jul–Aug |
| Wyoming | 361 | July | Jul–Aug |
| Massachusetts | 271 | June | Jun–Jun |
| New Hampshire | 243 | June | Jun–Jul |
| Pennsylvania | 234 | June | Jun–Jun |
| Maryland | 233 | June | Jun–Jul |
| Maine | 228 | July | Jun–Jul |
| Illinois | 173 | June | Jun–Jun |
| West Virginia | 129 | June | Jun–Jul |
| Ohio | 121 | June | Jun–Jun |
| Idaho | 114 | July | Jul–Aug |
| Connecticut | 87 | June | Jun–Jun |
| Washington | 64 | July | Jun–Jul |
| Colorado | 59 | July | Jul–Aug |
| Iowa | 39 | June | Jun–Jun |
| New Jersey | 36 | June | Jun–Jun |
| Utah | 31 | July | Jul–Jul |
| Virginia | 17 | June | Jun–Jun |
| Indiana | 14 | June | Jun–Jun |
| Rhode Island | 11 | June | Jun–Jun |
| North Carolina | 8 | June | Jun–Jun |
| North Dakota | 5 | July | Jul–Jul |
Main season = months with at least 30% of the state's peak-month count.
Related butterflies (Skippers)

Fiery Skipper

Silver-spotted Skipper
Huron Skipper

Zabulon Skipper

Peck's Skipper

Horace's Duskywing

Clouded Skipper

Long-tailed Skipper
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 Essex Skipper?
Nationally, June has the most observations, with the main season from June to July.
Where is Essex Skipper most often seen?
The most observations come from Minnesota, Michigan, Vermont.