Acraea terpsicore
In 3 days ~50% in a week ~80%
Acraea terpsicore, the tawny coster, is a small, 53–64 millimetres (2.1–2.5 in), leathery-winged butterfly common in grassland and scrub habitats. It belongs to the Nymphalidae or brush-footed butterfly family. It has a weak fluttery flight. It is avoided by most insect predators. This species and the yellow coster (Acraea issoria) are the only two Indian representatives of the predominantly African tribe Acraeini. It is found in India, Sri Lanka, Indonesia, Maldives to Myanmar, Thailand, Laos, Cambodia, Vietnam, Bangladesh, Malaysia, Singapore, and recently Australia.
Pierre and Bernaud, in 1997, stated that they verified the type in the Linnean Society of London and considered A. violae the same species as A. terpsicore. Honey and Scoble, in 2001, argued that both specimens in the Linnean Society are later additions by James Edward Smith (botanist) who, in 1784, purchased Linnaeus specimens, bringing them to London.
In the absence of authentic syntypes, the identity of terpsicore... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nitmiluk National Park | 🇦🇺 Australia | |
| 2 | Bandhavgarh National Park | 🇮🇳 India | |
| 3 | Ranthambore National Park | 🇮🇳 India | |
| 4 | Kakadu National Park | 🇦🇺 Australia | |
| 5 | Chitwan National Park | 🇳🇵 Nepal | |
| 6 | Khao Yai National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Puducherry | 🇮🇳 India | |
| 2 | Yogyakarta | 🇮🇩 Indonesia | |
| 3 | Rajkot | 🇮🇳 India | |
| 4 | Chennai | 🇮🇳 India | |
| 5 | Durg | 🇮🇳 India | |
| 6 | Dehradun | 🇮🇳 India | |
| 7 | Jabalpur | 🇮🇳 India | |
| 8 | Johor Bahru | 🇲🇾 Malaysia | |
| 9 | Thiruvananthapuram | 🇮🇳 India | |
| 10 | Vadodara | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Tawny Coster sighting in Ranthambore National Park on a given day, based on 9 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 9th most-seen of the 14 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
February, April and October–November
In those months about 30% of wildlife watchers report a Tawny Coster in Ranthambore National Park on a given day, against under 5% in May–July, September and December–January, the lowest months. Those are among Ranthambore National Park's driest months, with about 10 mm of rain a month against 270 mm in August.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Tawny Coster 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 6
Of the 6 parks where we can rate Tawny Coster sightings, Ranthambore National Park ranks 3rd at about 20%. The best odds are in Nitmiluk National Park (Australia, about 40%) and Bandhavgarh National Park (India, about 30%).
Same family: Nymphalidae
The closest relatives of the Tawny Coster that you can see in Ranthambore National Park (family Nymphalidae, Brush-footed Butterflies) are Plain Tiger Butterfly (about 30%), Lemon Pansy (about 20%) and Blue Pansy (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tawny Coster is recorded against all the insects logged in Ranthambore National Park (9 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.
