Cyrestis thyodamas
In 3 days ~40% in a week ~70%
Cyrestis thyodamas, the common map, is a species of butterfly in the family Nymphalidae. It was first described by Jean Baptiste Boisduval in 1836. It is found in the Indian subcontinent and Southeast Asia. Males and females upperside white, in many specimens pale ochraceous yellow, veins black. Forewing with four very slender irregularly sinuous transverse black lines, the costal margin shaded with ochraceous at base and fuscous beyond; cell crossed by three or four additional short lines; a postdiscal very incomplete series of white-centred broad fuscous rings in the interspaces, tinged with ochraceous near the tornus and broadly interrupted in interspaces 3 and 4; beyond this two transverse black lines not reaching the dorsal margin, shaded with fuscous between; the apex broadly and the termen also shaded with fuscous. Hindwing with three transverse fine lines; a pair of postdiscal broad black lines shaded with light sepia brown between, forming a conspicuous band, the outer line broken and incomplete, followed by two irregular black lines, a subterminal more pronounced black line, and posteriorly a narrow black terminal margin; dorsal margin broadly fuscous at... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Namdapha National Park | 🇮🇳 India | |
| 2 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 3 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 4 | Taroko National Park | 🇹🇼 Taiwan | |
| 5 | Khao Yai National Park | 🇹🇭 Thailand | |
| 6 | Periyar National Park | 🇮🇳 India | |
| 7 | Kanha National Park | 🇮🇳 India | |
| 8 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 9 | Doi Inthanon National Park | 🇹🇭 Thailand |
Possible
About 20% of wildlife watchers report a Common Mapwing sighting in Hong Kong on a given day, based on 216 verified sightings from GBIF citizen-science data. It is the 45th most-seen of the 1125 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.
May
In that month about 30% of wildlife watchers report a Common Mapwing in Hong Kong on a given day, against about 10% in August to March, the lowest months. That is one of Hong Kong's wettest months, with about 210 mm of rain against 25 mm in December.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Common Mapwing 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 12
Of the 12 cities where we can rate Common Mapwing sightings, Hong Kong ranks 5th at about 20%. The best odds are in Naha (Japan, about 40%), Taipei (Taiwan, about 20%) and Tuen Mun (China, about 20%).
Same family: Nymphalidae
The closest relatives of the Common Mapwing that you can see in Hong Kong (family Nymphalidae, Brush-footed Butterflies) are Ceylon Blue Glassy Tiger (about 30%), Blue-Spotted Crow Butterfly (about 30%) and Great Eggfly (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Mapwing is recorded against all the insects logged in Hong Kong (216 verified sightings), 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.
