Euphyes conspicua
In 3 days ~10%
Euphyes conspicua, the black dash, is a butterfly of the family Hesperiidae. The species was first described by William Henry Edwards in 1863. It is found in the upper Midwest of North America, from eastern Nebraska east to southern Ontario and along the central Atlantic Coast from Massachusetts south to south-eastern Virginia. Its habitat includes shrubby or partially wooded wetland.
The wingspan is 32–42 mm. Adults are on wing from June to August in one generation per year. They feed on the nectar of various flowers. The larvae feed on Carex stricta and possibly other Carex species. Adults feed on nectar from flowers including buttonbush, jewelweed, and swamp thistle. 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 Black Dash sighting in Chicago on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 751st most-seen of the 978 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Black Dash 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 Black Dash sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Black Dash is recorded against all the insects logged in Chicago (9 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.
