Idalus crinis
In 3 days ~10% in a week ~30%
Idalus crinis is a moth of the family Erebidae. It was described by Herbert Druce in 1884. It is found in Mexico and Guatemala. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Arenal Volcano National Park | 🇨🇷 Costa Rica | |
| 2 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San José | 🇨🇷 Costa Rica |
Rare
Under 5% of wildlife watchers report an Idalus crinis 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, August and December–January
In those months about 10% of wildlife watchers report an Idalus crinis in Arenal Volcano National Park on a given day, against under 5% in February, April–July and September–November, the lowest months.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Idalus crinis sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Yes
Of the 2 parks where we can rate Idalus crinis sightings, Arenal Volcano National Park has the highest daily chance: under 5%. Next come Monteverde Cloud Forest Reserve (Costa Rica, under 5%).
Same family: Erebidae
The closest relatives of the Idalus crinis that you can see in Arenal Volcano National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Feigeria herilia (about 10%), Black Witch (about 10%) and Dysgonia purpurata (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Idalus crinis 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.
