Urbanus simplicius
In 3 days ~10% in a week ~30%
Spicauda simplicius, the plain longtail, is a species of butterfly in the family Hesperiidae. It is found from Argentina, north through Central America, Mexico, and the West Indies to southern Texas and peninsular Florida. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Arenal Volcano National Park | 🇨🇷 Costa Rica |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Plain Longtail sighting in Arenal Volcano National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 222nd most-seen of the 302 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March, May–July and October–November
In those months about 10% of wildlife watchers report a Plain Longtail in Arenal Volcano National Park on a given day, against under 5% in April, August–September and December–February, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Plain Longtail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Arenal Volcano National Park, in our data
Arenal Volcano National Park is the only park on Wallace's Line with enough records to rate Plain Longtail sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Plain Longtail is recorded against all the insects logged in Arenal Volcano National Park (6 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.
