Trosia incostata
In 3 days ~30% in a week ~60%
Trosia dimas, the rosy ermine, is a moth in the family Megalopygidae. It is found in Colombia, Venezuela, Ecuador, Brazil, and Peru. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 2 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 3 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report a Trosia incostata sighting in Chirripó National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 52nd most-seen of the 127 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February, June–July and November
In those months about 20% of wildlife watchers report a Trosia incostata in Chirripó National Park on a given day, against under 5% in March, May, August–October and December–January, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Trosia incostata sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 3 parks where we can rate Trosia incostata sightings, Chirripó National Park has the highest daily chance: about 10%. Next come Tapantí-Macizo de la Muerte National Park (Costa Rica, about 10%) and Monteverde Cloud Forest Reserve (Costa Rica, under 5%).
Same order: Lepidoptera
The closest relatives of the Trosia incostata that you can see in Chirripó National Park (order Lepidoptera, Butterflies and Moths) are Drucina leonata (about 30%), Pansy Daggerwing (about 30%) and Widespread Eighty-Eight (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Trosia incostata is recorded against all the insects logged in Chirripó National Park (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.
