Prodasineura autumnalis
In 3 days ~40% in a week ~70%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yogyakarta | 🇮🇩 Indonesia | |
| 2 | Tuen Mun | 🇨🇳 China | |
| 3 | Xiamen City | 🇨🇳 China | |
| 4 | Jakarta | 🇮🇩 Indonesia | |
| 5 | Hong Kong | 🇨🇳 China | |
| 6 | Guangzhou | 🇨🇳 China |
Possible
About 20% of wildlife watchers report a Black Threadtail sighting in Khao Yai National Park on a given day, based on 19 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 38th most-seen of the 221 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.
September
In that month about 40% of wildlife watchers report a Black Threadtail in Khao Yai National Park on a given day, against under 5% in June and October–November, 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 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Black Threadtail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Black Threadtail sightings, Khao Yai National Park has the highest daily chance: about 20%. Next come Kaeng Krachan National Park (Thailand, about 10%).
Same family: Platycnemididae
The closest relatives of the Black Threadtail that you can see in Khao Yai National Park (family Platycnemididae, White-legged damselflies) are Yellow Featherlegs (about 20%), Coeliccia poungyi (about 20%) and Blue Bush Dart (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black Threadtail is recorded against all the insects logged in Khao Yai National Park (19 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.
