Caligo idomeneus
In 3 days ~30% in a week ~50%
Caligo idomeneus, the Idomeneus giant owl, is a butterfly of the family Nymphalidae. The species can be found in the Amazon rainforest and eastern Andes, from Venezuela to Ecuador, and south to the Mato Grosso in southern Brazil. The butterfly is named for Idomeneus, the leader of the Cretan army during the Trojan War.
The wingspan is about 110–140 millimetres (4.3–5.5 in). The larvae feed on Musa species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador | |
| 2 | Soberanía National Park | 🇵🇦 Panama |
With luck
About 10% of wildlife watchers report a Caligo idomeneus sighting in Yasuní National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 106th most-seen of the 203 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
January and June–July
In those months about 20% of wildlife watchers report a Caligo idomeneus in Yasuní National Park on a given day, against under 5% in March–May and August–December, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Caligo idomeneus sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Caligo idomeneus sightings, Yasuní National Park has the highest daily chance: about 10%. Next come Soberanía National Park (Panama, about 10%).
Same genus: Caligo
The closest relatives of the Caligo idomeneus that you can see in Yasuní National Park (genus Caligo, Owl-Butterflies) are Caligo placidianus (about 10%) and Forest Giant Owl (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Caligo idomeneus is recorded against all the insects logged in Yasuní National Park (8 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.
