Eusarca nemora
In 3 days ~10% in a week ~30%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 2 | Manu National Park | 🇵🇪 Peru | |
| 3 | Soberanía National Park | 🇵🇦 Panama | |
| 4 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 5 | Arenal Volcano National Park | 🇨🇷 Costa Rica |
Rare
Under 5% of wildlife watchers report a Eusarca nemora sighting in Arenal Volcano National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 256th 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 November
In those months about 10% of wildlife watchers report a Eusarca nemora in Arenal Volcano National Park on a given day, against under 5% in June, August–October and December–February, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Eusarca nemora sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
5th of 5
Of the 5 parks where we can rate Eusarca nemora sightings, Arenal Volcano National Park ranks 5th at under 5%. The best odds are in Braulio Carrillo National Park (Costa Rica, about 10%), Manu National Park (Peru, about 10%) and Soberanía National Park (Panama, about 10%).
Same family: Geometridae
The closest relatives of the Eusarca nemora that you can see in Arenal Volcano National Park (family Geometridae, Geometer Moths) are Hübner's Olive (about 10%), Leuciris fimbriaria (about 10%) and Paragonia cruraria (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eusarca nemora is recorded against all the insects logged in Arenal Volcano National Park (5 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.
