Napeocles jucunda
In 3 days ~20% in a week ~40%
Napeocles jucunda, the great blue hookwing, is a South American butterfly of the family Nymphalidae. The species was first described by Jacob Hübner in 1808. It is the only representative of the monotypic Neotropical lowland genus Napeocles, erected by Henry Walter Bates in 1864. It has been assigned to the recently resurrected tribe Victorinini. The species is very similar to some species in tribe Kallimini.
These butterflies occur in tropical rainforest across the Amazon basin and from the eastern slopes of the Andes. They can usually be found high in the canopy, but sometimes they are also present on the lower foliage of trees and on humid cacao-groves on fallen fruits. The eggs and pupae are very similar to that of Siproeta stelenes, but the final instar larvae is characterized by a dark maroon basal color, with the thorax and abdomen flecked by numerous yellow specks. The immature... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Great Blue Hookwing sighting in Tambopata National Reserve on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 111th 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 40%, if each day is a fresh chance.
March
In that month about 30% of wildlife watchers report a Great Blue Hookwing in Tambopata National Reserve on a given day, against under 5% in April–June and August–January, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Great Blue Hookwing sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Tambopata National Reserve, in our data
Tambopata National Reserve is the only park on Wallace's Line with enough records to rate Great Blue Hookwing sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Nymphalidae
The closest relatives of the Great Blue Hookwing 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 Great Blue Hookwing is recorded against all the insects logged in Tambopata National Reserve (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.
