Xylophanes acrus
In 3 days ~20% in a week ~40%
Xylophanes acrus is a moth of the family Sphingidae. It is known to be present in Panama, Costa Rica and Honduras. The wingspan is 72–83 mm, with females being larger than males. It is similar to Xylophanes cyrene but more green.
Adults are on wing year-round in Costa Rica. In Honduras, adults have been recorded in May. Larvae have been recorded feeding on Psychotria chiriquina, Psychotria monteverdensis, Psychotria panamensis, Psychotria nervosa and Pavonia guanacastensis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Chirripó National Park | 🇨🇷 Costa Rica | |
| 2 | Monteverde Cloud Forest Reserve | 🇨🇷 Costa Rica | |
| 3 | Arenal Volcano National Park | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report a Xylophanes acrus sighting in Monteverde Cloud Forest Reserve on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 229th 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 40%, if each day is a fresh chance.
October
In that month about 20% of wildlife watchers report a Xylophanes acrus in Monteverde Cloud Forest Reserve on a given day, against under 5% in January, March–April and August–September, the lowest months. That is one of Monteverde Cloud Forest Reserve's wettest months, with about 510 mm of rain against 45 mm in March.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Xylophanes acrus 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.
Among the best
Of the 3 parks where we can rate Xylophanes acrus sightings, Monteverde Cloud Forest Reserve ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Chirripó National Park (Costa Rica, about 10%).
Same genus: Xylophanes
The closest relatives of the Xylophanes acrus that you can see in Monteverde Cloud Forest Reserve (genus Xylophanes) are Brown And Yellow Sphinx (about 10%), Xylophanes germen (about 10%) and Xylophanes hannemanni (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Xylophanes acrus is recorded against all the insects logged in Monteverde Cloud Forest Reserve (11 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.
