Idalus critheis
In 3 days ~40% in a week ~60%
Idalus critheis is a moth of the family Erebidae. It was described by Herbert Druce in 1884. It is found in French Guiana, Guyana, Brazil, Venezuela, Colombia, Ecuador, Peru and Panama. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 2 | Corcovado National Park | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report an Idalus critheis sighting in Piedras Blancas National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 49th most-seen of the 117 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 60%, if each day is a fresh chance.
February
In that month about 40% of wildlife watchers report an Idalus critheis in Piedras Blancas National Park on a given day, against under 5% in April–July and September–January, the lowest months. That is one of Piedras Blancas National Park's driest months, with about 55 mm of rain against 650 mm in October.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Idalus critheis 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 2 parks where we can rate Idalus critheis sightings, Piedras Blancas National Park has the highest daily chance: about 10%. Next come Corcovado National Park (Costa Rica, about 10%).
Same family: Erebidae
The closest relatives of the Idalus critheis that you can see in Piedras Blancas National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Black Witch (about 10%) and Antiblemma perornata (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Idalus critheis is recorded against all the insects logged in Piedras Blancas 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.
