Idalus critheis
In 3 days ~20% in a week ~40%
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 Corcovado National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 97th most-seen of the 116 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May
In that month about 20% of wildlife watchers report an Idalus critheis in Corcovado National Park on a given day, against under 5% in March–April and June–January, the lowest months.
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.
Among the best
Of the 2 parks where we can rate Idalus critheis sightings, Corcovado National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Piedras Blancas National Park (Costa Rica, about 10%).
Same family: Erebidae
The closest relatives of the Idalus critheis that you can see in Corcovado National Park (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Black Witch (about 10%), Dialithis gemmifera (about 10%) and Walker's Moth (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 Corcovado 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.
