Erynnis zarucco
In 3 days ~20% in a week ~30%
Erynnis zarucco, commonly known as the zarucco duskywing, is a species of butterfly in the family Hesperiidae. It is found (rarely) from southern Ontario to the southeastern United States. The wingspan is 32–38 mm. There are three generations in the deep south but only two in the north.
The larvae feed on tree and herbaceous Fabaceae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Merritt Island National Wildlife Refuge | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Miami | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Zarucco Duskywing sighting in Merritt Island National Wildlife Refuge on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 138th most-seen of the 189 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
February, April, June and August–September
In those months about 10% of wildlife watchers report a Zarucco Duskywing in Merritt Island National Wildlife Refuge on a given day, against under 5% in March, May, July and October–January, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Zarucco Duskywing sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Merritt Island National Wildlife Refuge, in our data
Merritt Island National Wildlife Refuge is the only park on Wallace's Line with enough records to rate Zarucco Duskywing sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Erynnis
The closest relatives of the Zarucco Duskywing that you can see in Merritt Island National Wildlife Refuge (genus Erynnis, Duskywings) are Horace's Duskywing (about 10%) and Sleepy Duskywing (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Zarucco Duskywing is recorded against all the insects logged in Merritt Island National Wildlife Refuge (9 verified sightings from 2019 to 2026), 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.
