Euripus nyctelius
In 3 days ~10% in a week ~30%
Euripus nyctelius, the courtesan, is an Indomalayan butterfly of the family Nymphalidae. It was first described by Henry Doubleday in 1845. The females mimic Euploea species. The larva feeds on Trema orientalis. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tuen Mun | 🇨🇳 China | |
| 2 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 3 | Hong Kong | 🇨🇳 China | |
| 4 | Guangzhou | 🇨🇳 China |
Rare
Under 5% of wildlife watchers report a Courtesan sighting in Hong Kong on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 506th most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March, May–June and September
In those months about 10% of wildlife watchers report a Courtesan in Hong Kong on a given day, against under 5% in April, July–August and October–February, the lowest months. Those are among Hong Kong's wettest months, with about 180 mm of rain a month against 25 mm in December.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Courtesan sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 4
Of the 4 cities where we can rate Courtesan sightings, Hong Kong ranks 3rd at under 5%. The best odds are in Tuen Mun (China, about 10%) and Kuala Lumpur (Malaysia, under 5%).
Same family: Nymphalidae
The closest relatives of the Courtesan that you can see in Hong Kong (family Nymphalidae, Brush-footed Butterflies) are Ceylon Blue Glassy Tiger (about 30%), Blue-Spotted Crow Butterfly (about 30%) and Great Eggfly (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Courtesan is recorded against all the insects logged in Hong Kong (17 verified sightings), 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.
