Trithemis aurora
In 3 days ~70% in a week >90%
Trithemis aurora, the crimson marsh glider, is a species of dragonfly in the family Libellulidae. It is a common and widely distributed species found throughout the year across the Indian subcontinent and Southeast Asia.
The male of this small species is distinctly different from the female. The male has a reddish-brown face, with eyes that are crimson above and brown on the sides. The thorax is red with a fine, purple pruinescence. The abdomen, the base of which is swollen, is crimson with a violet tinge. The wings are transparent with crimson venation and the base has a broad amber patch. The wing spots are a dark reddish-brown and the legs are black.
The female has an olivaceous or bright reddish-brown face with eyes that are purplish-brown above and grey below. The thorax is olivaceous with brown median and black lateral stripes. The abdomen is reddish-brown with median and lateral black markings. The black markings are confluent at the end of each segment and enclose a reddish-brown spot. The wings are transparent with brown tips. The venation is bright yellow to brown and basal amber markings are pale. The wing spots are a dark brown and the lags are dark grey... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Royal Bardia National Park | 🇳🇵 Nepal | |
| 3 | Khao Sok National Park | 🇹🇭 Thailand | |
| 4 | Periyar National Park | 🇮🇳 India | |
| 5 | Nagarhole National Park | 🇮🇳 India | |
| 6 | Kanha National Park | 🇮🇳 India | |
| 7 | Minneriya National Park | 🇱🇰 Sri Lanka | |
| 8 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 9 | Satpura National Park | 🇮🇳 India | |
| 10 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 11 | Ranthambore National Park | 🇮🇳 India | |
| 12 | Yala National Park | 🇱🇰 Sri Lanka | |
| 13 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 14 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 15 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 16 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 17 | Cat Tien National Park | 🇻🇳 Vietnam |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kota | 🇮🇳 India | |
| 2 | Naha | 🇯🇵 Japan | |
| 3 | Singapore | 🇸🇬 Singapore | |
| 4 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 5 | Johor Bahru | 🇲🇾 Malaysia | |
| 6 | Thiruvananthapuram | 🇮🇳 India | |
| 7 | Davao City | 🇵🇭 Philippines | |
| 8 | Taichung | 🇹🇼 Taiwan | |
| 9 | Nashik | 🇮🇳 India | |
| 10 | Vadodara | 🇮🇳 India |
Likely
About 40% of wildlife watchers report a Crimson Marsh Glider sighting in Khao Yai National Park on a given day, based on 90 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 4th most-seen of the 221 insects we can rate there. Over three days the chance rises to about 70%, and over a week to over 90%, if each day is a fresh chance.
September
In that month about 60% of wildlife watchers report a Crimson Marsh Glider in Khao Yai National Park on a given day, against about 20% in June and December–January, the lowest months. That is one of Khao Yai National Park's wettest months, with about 330 mm of rain against 15 mm in December.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Crimson Marsh Glider 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 17 parks where we can rate Crimson Marsh Glider sightings, Khao Yai National Park has the highest daily chance: about 40%. Next come Royal Bardia National Park (Nepal, about 40%) and Khao Sok National Park (Thailand, about 40%).
GBIF citizen-science records
It is estimated from how often the Crimson Marsh Glider is recorded against all the insects logged in Khao Yai National Park (90 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.
