Parantica aglea
In 3 days ~40% in a week ~70%
Parantica aglea, commonly known as the glassy tiger, is a butterfly found in the Indomalayan realm. The species is a member of the Danainae subfamily of the Nymphalidae family. Several subspecies are recognized. In the British Museum's collection, there are specimens of the true Parantica aglea aglea from Myanmar, as well as others, indistinguishable from the typical Parantica aglea melanoides, from Mysore.
The ground color of this species is a sooty black, with subhyaline bluish-white streaks and spots. On the forewing, the 11th vein is fused with the 12th. Additionally, the first interspace of the upperside forewing has two relatively long, broad streaks that unite at the base and are truncated outwardly. The cell contains a very broad, somewhat club-shaped streak, traversed by two fine black lines. Interspaces 2 and 3 display basal spots, an irregular discal series of three spots and two elongated streaks, as well as a subterminal series of spots. These two series curve inward opposite the apex of the wing, with the latter continuing along the apical half of the costa. Finally, a terminal row of smaller paired spots appears... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 3 | Namdapha National Park | 🇮🇳 India | |
| 4 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 5 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 6 | Khao Yai National Park | 🇹🇭 Thailand | |
| 7 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 8 | Taroko National Park | 🇹🇼 Taiwan | |
| 9 | Khao Sok National Park | 🇹🇭 Thailand | |
| 10 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nashik | 🇮🇳 India | |
| 2 | Hong Kong | 🇨🇳 China | |
| 3 | Kathmandu | 🇳🇵 Nepal | |
| 4 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka | |
| 5 | Thiruvananthapuram | 🇮🇳 India | |
| 6 | Mumbai | 🇮🇳 India | |
| 7 | Tuen Mun | 🇨🇳 China | |
| 8 | Dehradun | 🇮🇳 India | |
| 9 | Pune | 🇮🇳 India | |
| 10 | Kozhikode | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Glassy Tiger sighting in Cat Tien National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 58th most-seen of the 125 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
November
In that month about 40% of wildlife watchers report a Glassy Tiger in Cat Tien National Park on a given day, against under 5% in May and July–October, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Glassy Tiger sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 10
Of the 10 parks where we can rate Glassy Tiger sightings, Cat Tien National Park ranks 5th at about 20%. The best odds are in Cuc Phuong National Park (Vietnam, about 40%), Royal Manas National Park (Bhutan, about 30%) and Namdapha National Park (India, about 30%).
GBIF citizen-science records
It is estimated from how often the Glassy Tiger is recorded against all the insects logged in Cat Tien National Park (12 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.
