Tholymis tillarga
In 3 days ~20% in a week ~50%
Tholymis tillarga, the coral-tailed cloudwing, is a species of dragonfly in the family Libellulidae. It is found from tropical West Africa to Asia, Australia and the Pacific Islands. Common names include old world twister, evening skimmer, crepuscular darter, foggy-winged twister, and twister.
It is a medium sized dragonfly with reddish eyes, yellowish red thorax and coral red abdomen. Its wings are transparent; but hind wings have a golden-brown patch in the base, bordered by a cloudy-white patch. Female is brown and lacks the cloudy-white patch in the hind-wings.
It is a migrant with a permanent presence in humid parts of the tropics. It breeds in standing water-bodies; and prefers weedy ponds, swamps and lakes. They are active at dusk and dawn, as well as during cloudy days. The genus name Tholymis is possibly derived from the Greek θώραξ (thōrax, "thorax" or "chest") and λυγαῖος (lygaios, "shadowy" or "murky"), together with the common dragonfly suffix -themis. The name may refer to the dark-coloured thorax of males of Tholymis citrina.
The derivation of the species name tillarga is unknown. List of odonates... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ankarafantsika National Park | 🇲🇬 Madagascar | |
| 2 | Khao Sok National Park | 🇹🇭 Thailand | |
| 3 | Khao Yai National Park | 🇹🇭 Thailand | |
| 4 | Daintree National Park | 🇦🇺 Australia | |
| 5 | Chobe National Park | 🇧🇼 Botswana | |
| 6 | iSimangaliso Wetland Park | 🇿🇦 South Africa |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yogyakarta | 🇮🇩 Indonesia | |
| 2 | Kochi | 🇮🇳 India | |
| 3 | Ouagadougou | 🇧🇫 Burkina Faso | |
| 4 | Vadodara | 🇮🇳 India | |
| 5 | Thiruvananthapuram | 🇮🇳 India | |
| 6 | Salem | 🇮🇳 India | |
| 7 | Kollam | 🇮🇳 India | |
| 8 | Thrissur | 🇮🇳 India | |
| 9 | Davao City | 🇵🇭 Philippines | |
| 10 | Lagos | 🇳🇬 Nigeria |
With luck
About 10% of wildlife watchers report a Twister sighting in Tuen Mun on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 188th most-seen of the 557 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
October
In that month about 20% of wildlife watchers report a Twister in Tuen Mun on a given day, against under 5% in December to March, the lowest months. That is one of Tuen Mun's driest months, with about 55 mm of rain against 290 mm in June.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Twister sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
30th of 37
Of the 37 cities where we can rate Twister sightings, Tuen Mun ranks 30th at about 10%. The best odds are in Yogyakarta (Indonesia, about 30%), Kochi (India, about 30%) and Ouagadougou (Burkina Faso, about 20%).
Same family: Libellulidae
The closest relatives of the Twister that you can see in Tuen Mun (family Libellulidae, Skimmers) are Common Picture Wing (about 30%), Slender Skimmer (about 20%) and Pied Paddy Skimmer (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Twister is recorded against all the insects logged in Tuen Mun (22 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.
