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 Colombo [Sri Jayawardenepura Kotte] on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 128th most-seen of the 182 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
In that month about 20% of wildlife watchers report a Ceylon Blue Glassy Tiger in Colombo [Sri Jayawardenepura Kotte] on a given day, against under 5% in March, July and September–November, the lowest months.
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.
5th of 9
Of the 9 cities where we can rate Ceylon Blue Glassy Tiger sightings, Colombo [Sri Jayawardenepura Kotte] ranks 5th 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 Colombo [Sri Jayawardenepura Kotte] (family Nymphalidae, Brush-footed Butterflies) are Common Palmfly (about 30%), White Four Ring (about 30%) and Common Crow (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 Colombo [Sri Jayawardenepura Kotte] (8 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.
