Ideopsis similis
In 3 days ~20% in a week ~40%
Ideopsis similis, the Ceylon blue glassy tiger, is a species of butterfly found in Asia, including Sri Lanka, India and Taiwan, that belongs to the subfamily Danainae (crows and tigers), in the family Nymphalidae (brush-footed butterflies). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 2 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 3 | Taroko National Park | 🇹🇼 Taiwan |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hong Kong | 🇨🇳 China | |
| 2 | Taipei | 🇹🇼 Taiwan | |
| 3 | Tuen Mun | 🇨🇳 China | |
| 4 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 5 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka | |
| 6 | Kaohsiung | 🇹🇼 Taiwan | |
| 7 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 8 | Bangkok | 🇹🇭 Thailand | |
| 9 | Guangzhou | 🇨🇳 China |
With luck
About 10% of wildlife watchers report a Ceylon Blue Glassy Tiger sighting in Kaohsiung on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 130th most-seen of the 218 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.
June and August–November
In those months about 10% of wildlife watchers report a Ceylon Blue Glassy Tiger in Kaohsiung on a given day, against under 5% in July and December–May, the lowest months. Those are among Kaohsiung's wettest months, with about 220 mm of rain a month against 25 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Ceylon Blue Glassy Tiger sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 9
Of the 9 cities where we can rate Ceylon Blue Glassy Tiger sightings, Kaohsiung ranks 6th at about 10%. The best odds are in Hong Kong (China, about 30%), Taipei (Taiwan, about 10%) and Tuen Mun (China, about 10%).
Same family: Nymphalidae
The closest relatives of the Ceylon Blue Glassy Tiger that you can see in Kaohsiung (family Nymphalidae, Brush-footed Butterflies) are Great Eggfly (about 20%), Plain Tiger Butterfly (about 20%) and Common Leopard (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Ceylon Blue Glassy Tiger is recorded against all the insects logged in Kaohsiung (10 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.
