Philaethria dido
In 3 days ~20% in a week ~50%
Philaethria dido, the scarce bamboo page or dido longwing, is a butterfly in the family Nymphalidae. It is found in Central America and tropical South America, both east and west of the Andes, from Brazil and Ecuador northwards to Mexico. Strays can sometimes be found in the lower Rio Grande Valley in southern Texas.
The butterflies have a wingspan of about 110 mm (4.3 in), and in Mexico are on the wing from July to December. The upper surface of the wings is black patterned with translucent green patches. The underside is similar with some brown streaks with gray scales. Philaethria dido is often confused with Siproeta stelenes. They have a similar coloration, but their wing shapes are different and whereas P. dido flies high in the canopy, S. stelenes is often to be seen in forest clearings and open secondary forest.
Three subspecies are recognized. Philaethria dido chocoensis is found only on the western side of the Andes, its range extending from Ecuador to the Chocó region in northwestern Colombia. Philaethria dido dido inhabits tropical rainforests of South America east of the Andes, from Colombia to Bolivia. Philaethria dido panamensis lives... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador | |
| 2 | Tambopata National Reserve | 🇵🇪 Peru | |
| 3 | Braulio Carrillo National Park | 🇨🇷 Costa Rica |
With luck
About 10% of wildlife watchers report a Scarce Bamboo Page sighting in Tambopata National Reserve on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 71st most-seen of the 141 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.
May and July
In those months about 20% of wildlife watchers report a Scarce Bamboo Page in Tambopata National Reserve on a given day, against under 5% in June and September–April, the lowest months. Those are among Tambopata National Reserve's driest months, with about 90 mm of rain a month against 420 mm in February.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Scarce Bamboo Page sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 3 parks where we can rate Scarce Bamboo Page sightings, Tambopata National Reserve ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Yasuní National Park (Ecuador, about 10%).
Same family: Nymphalidae
The closest relatives of the Scarce Bamboo Page that you can see in Tambopata National Reserve (family Nymphalidae, Brush-footed Butterflies) are Many-Banded Daggerwing (about 30%), Julia Heliconian (about 20%) and Malachite (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Scarce Bamboo Page is recorded against all the insects logged in Tambopata National Reserve (7 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.
