Cethosia cyane
In 3 days ~80% in a week >90%
Cethosia cyane, the leopard lacewing, is a species of heliconiine butterfly found from India to southern China (southern Yunnan), and Indochina. Its range has expanded in the last few decades, and its arrival in the southern part of the Malay Peninsula, including Singapore, is relatively recent.
Upperside tawny, in fresh specimens a rich reddish tawny. Forewing: anterior and apical two-thirds black, the margin of this colour waved and irregular, following a line dividing the cell longitudinally and circling round to near the posterior angle; a short, broad, oblique, white bar beyond apex of cell, the veins crossing it and a spot in interspaces 3 and 4 black; a transverse indistinct row of small spots and a terminal series of V-shaped lunules white. Hindwing: three or four spots just beyond apex of cell, a subterminal row of spots and the termen broadly black, the last with a series of white lunules as on the forewing. Underside variegated with red, white, pale blue, ochraceous and black; the terminal margins of both wings broadly black with white lunules as on the upperside; in the middle of each lunule a short white streak from the margin; cilia alternately... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sundarbans National Park | 🇮🇳 India | |
| 2 | Namdapha National Park | 🇮🇳 India | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 2 | Đà Nẵng | 🇻🇳 Vietnam | |
| 3 | Chattogram | 🇧🇩 Bangladesh | |
| 4 | Guwahati | 🇮🇳 India | |
| 5 | Bangkok | 🇹🇭 Thailand | |
| 6 | Singapore | 🇸🇬 Singapore |
Likely
About 40% of wildlife watchers report a Leopard Lacewing Butterfly sighting in Namdapha National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 27th most-seen of the 71 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.
October
In that month about 70% of wildlife watchers report a Leopard Lacewing Butterfly in Namdapha National Park on a given day, against about 10% in January–May and September, the lowest months. June to August have too few records to rate.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Leopard Lacewing Butterfly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 5
Of the 5 parks where we can rate Leopard Lacewing Butterfly sightings, Namdapha National Park ranks 2nd at about 40%. The best odds are in Sundarbans National Park (India, about 50%).
GBIF citizen-science records
It is estimated from how often the Leopard Lacewing Butterfly is recorded against all the insects logged in Namdapha National Park (13 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.
