Euphyes bimacula
In 3 days ~10% in a week ~20%
Euphyes bimacula, the two-spotted skipper, is a butterfly of the family Hesperiidae. It is found in North America, from northeast Colorado and western Nebraska; eastern Nebraska east to southern Quebec; southern Maine south to central Virginia; coastal plain south to Georgia; and the Gulf Coast.
The wingspan is 25–30 mm. They are dark brown on the upperside and pale tawny orange beneath. The larvae feed on Carex trichocarpa. Adults feed on nectar from flowers including pickerelweed, sweet pepperbush, blue flag, common milkweed, and spiraea.
The species is listed as endangered in Connecticut by state authorities. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Two-Spotted Skipper sighting in Chicago on a given day, based on 23 verified sightings from GBIF citizen-science data. It is the 538th most-seen of the 978 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Two-Spotted Skipper in Chicago on a given day, so our monthly data shows no clear season.
Only Chicago, in our data
Chicago is the only city on Wallace's Line with enough records to rate Two-Spotted Skipper sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Two-Spotted Skipper is recorded against all the insects logged in Chicago (23 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
