Adhemarius ypsilon
In 3 days ~20% in a week ~50%
Adhemarius ypsilon is a species of moth in the family Sphingidae. It was described by Rothschild and Jordan in 1903 and is known from Costa Rica, Mexico, Belize, Guatemala, Nicaragua, Venezuela, French Guiana, Ecuador, Peru, and Bolivia.
The wingspan is 89–117 mm for males and 107–126 mm for females. In Costa Rica, moths in this species take flight year round. The larvae feed on several species in the plant genus Ocotea (including Ocotea veraguensis, Ocotea atirrensis, Ocotea sarah and Ocotea dendrodaphne). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cerro Azul Meámbar National Park | 🇭🇳 Honduras | |
| 2 | Tapantí-Macizo de la Muerte National Park | 🇨🇷 Costa Rica | |
| 3 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 4 | Braulio Carrillo National Park | 🇨🇷 Costa Rica | |
| 5 | Arenal Volcano National Park | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report an Adhemarius ypsilon sighting in Monteverde Cloud Forest Reserve on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 133rd most-seen of the 506 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
June and November
In those months about 20% of wildlife watchers report an Adhemarius ypsilon in Monteverde Cloud Forest Reserve on a given day, against under 5% in April, October and December–February, the lowest months. Those are among Monteverde Cloud Forest Reserve's wettest months, with about 310 mm of rain a month against 45 mm in March.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Adhemarius ypsilon sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 5 parks where we can rate Adhemarius ypsilon sightings, Monteverde Cloud Forest Reserve ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Cerro Azul Meámbar National Park (Honduras, about 10%) and Tapantí-Macizo de la Muerte National Park (Costa Rica, about 10%).
Same genus: Adhemarius
The closest relatives of the Adhemarius ypsilon that you can see in Monteverde Cloud Forest Reserve (genus Adhemarius) are Adhemarius dariensis (about 10%) and Pink Hawkmoth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Adhemarius ypsilon is recorded against all the insects logged in Monteverde Cloud Forest Reserve (21 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.
