Sleepy Duskywing (Erynnis brizo) is in the Skippers family (Hesperiidae). Across the U.S., iNaturalist users have logged 2,854 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 Sleepy Duskywing: observations by month (U.S.)
About Sleepy Duskywing
Erynnis brizo, the sleepy duskywing or banded oak duskywing, is a species of Hesperiidae butterfly that occurs throughout North America and is commonly confused with E. juvenalis and E. lucilius. The species is listed as threatened in Connecticut.From Wikipedia via iNaturalist — article, CC BY-SA.
Sleepy Duskywing by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Florida | 362 | March | Mar–Mar |
| Maryland | 336 | April | Apr–Apr |
| North Carolina | 239 | April | Mar–Apr |
| Virginia | 172 | April | Apr–Apr |
| Tennessee | 163 | April | Mar–Apr |
| Ohio | 158 | April | Apr–Apr |
| New Mexico | 140 | April | Apr–May |
| California | 120 | April | Mar–May |
| Massachusetts | 120 | May | May–May |
| Arizona | 96 | March | Mar–Apr |
| Kentucky | 96 | April | Apr–Apr |
| Georgia | 94 | March | Mar–Apr |
| Oklahoma | 79 | April | Mar–Apr |
| West Virginia | 77 | April | Apr–May |
| Pennsylvania | 71 | April | Apr–May |
| Texas | 69 | March | Mar–Apr |
| Utah | 59 | May | May–May |
| Arkansas | 49 | March | Mar–Apr |
| South Carolina | 47 | March | Mar–Apr |
| Indiana | 46 | April | Apr–Apr |
| New Jersey | 38 | April | Apr–Apr |
| Alabama | 37 | March | Mar–Mar |
| Missouri | 35 | April | Mar–Apr |
| Maine | 32 | May | May–May |
| Colorado | 31 | April | Apr–May |
| Michigan | 24 | May | Apr–May |
| New Hampshire | 24 | May | May–May |
| Nevada | 10 | April | Mar–May |
| New York | 9 | May | May–Jun |
| Louisiana | 8 | March | Mar–Mar |
| Wisconsin | 7 | May | May–May |
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 Sleepy Duskywing?
Nationally, April has the most observations, with the main season from March to April.
Where is Sleepy Duskywing most often seen?
The most observations come from Florida, Maryland, North Carolina.