Terinos terpander
In 3 days ~60% in a week ~80%
Terinos terpander, the royal Assyrian, is a butterfly in the family Nymphalidae. It was described by William Chapman Hewitson in 1862. It is found in the Indomalayan realm. It is the smallest species of the genus; at the same time it displays on the forewings the least-developed scent-patches; they not only begin beyond the cell, but do not flow together anteriorly, being represented along the upper radial by an isolated streak of thinly scattered scales. The hindwings are either orange-coloured in the distal half, or spotted with white in the anal area or they may be uniform blue, according to the locality. The under surface is red-brown, differing from all the other known species in being
adorned with very broad longitudinal fasciae of a vivid metallic gray lustre, which in some forms are accompanied on the hindwings by pure white submarginal bands. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Luang National Park | 🇹🇭 Thailand | |
| 2 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 3 | Gunung Leuser National Park | 🇮🇩 Indonesia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore | |
| 2 | Kuala Lumpur | 🇲🇾 Malaysia |
Possible
About 20% of wildlife watchers report a Royal Assyrian sighting in Gunung Leuser National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 20th most-seen of the 103 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 80%, if each day is a fresh chance.
November and December
In those months about 40% of wildlife watchers report a Royal Assyrian in Gunung Leuser National Park on a given day, against under 5% in October, the lowest month.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Royal Assyrian sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 parks where we can rate Royal Assyrian sightings, Gunung Leuser National Park ranks 3rd at about 20%. The best odds are in Khao Luang National Park (Thailand, about 30%) and Taman Negara National Park (Malaysia, about 20%).
Same family: Nymphalidae
The closest relatives of the Royal Assyrian that you can see in Gunung Leuser National Park (family Nymphalidae, Brush-footed Butterflies) are Great Eggfly (about 40%), Chocolate Pansy (about 30%) and Blue Pansy (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Royal Assyrian is recorded against all the insects logged in Gunung Leuser National Park (19 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.
