Cupha erymanthis
In 3 days ~80% in a week >90%
Cupha erymanthis, the rustic, is a species of brush-footed butterfly found in forested areas of tropical South Asia and Southeast Asia. The males and females are identical. The upperside of the rustic is ochraceous light brown. Its forewing displays some loop-like, slender, dark cellular markings with a broad, somewhat curved, transverse yellow discal band from costa to vein 1. The band does not reach the termen but broadens posteriorly.
The margins of the forewing are irregularly sinuous, with the inner defined broadly with black, and produced outwards in interspaces 3 and 4. Below this, the margin is squarely indented inwards in interspace 2 and outwardly convex in interspace 1. There is a curved series of three black spots. The largest is in interspaces 1, 2 and 3. The apical area beyond the band is black, with a conspicuous yellow subapical spot in interspace 5, and a paler ill-defined similar spot above it in interspace 6. In the posterior, the black area is produced narrowly to the tornus and encircles a yellow spot near the apex of interspace 2.
The hindwing features a transverse sinuous and very slender black line. This line is followed by a... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 2 | Periyar National Park | 🇮🇳 India | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 6 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 7 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 8 | Bali Barat National Park | 🇮🇩 Indonesia | |
| 9 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 10 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 11 | Sepilok | 🇲🇾 Malaysia | |
| 12 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 13 | Kinabalu Park | 🇲🇾 Malaysia | |
| 14 | Taroko National Park | 🇹🇼 Taiwan |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Thiruvananthapuram | 🇮🇳 India | |
| 2 | Thrissur | 🇮🇳 India | |
| 3 | Ponnani | 🇮🇳 India | |
| 4 | Hong Kong | 🇨🇳 China | |
| 5 | Xiamen City | 🇨🇳 China | |
| 6 | Singapore | 🇸🇬 Singapore | |
| 7 | Taipei | 🇹🇼 Taiwan | |
| 8 | Tuen Mun | 🇨🇳 China | |
| 9 | Kathmandu | 🇳🇵 Nepal | |
| 10 | Kochi | 🇮🇳 India |
Likely
About 40% of wildlife watchers report a Rustic sighting in Way Kambas National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 5 insects we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
July
In that month about 70% of wildlife watchers report a Rustic in Way Kambas National Park on a given day, against about 10% in April, September and November, the lowest months. That is one of Way Kambas National Park's driest months, with about 120 mm of rain against 370 mm in March. March and December–January have too few records to rate.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Rustic sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 14 parks where we can rate Rustic sightings, Way Kambas National Park has the highest daily chance: about 40%. Next come Periyar National Park (India, about 40%) and Cuc Phuong National Park (Vietnam, about 30%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Rustic is recorded against all the insects logged in Way Kambas National Park (6 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.
