Black Threadtail

Black Threadtail

Prodasineura autumnalis

Daily sighting probability ~30% · Possible
at Yogyakarta

In 3 days ~60% in a week ~90%

22 Verified sightings at Yogyakarta
34 In all 2 parks From 2019 to 2026
June Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Khao Yai National Park 🇹🇭 Thailand
~20%
2 Kaeng Krachan National Park 🇹🇭 Thailand
~10%

Cities Where Found

# City Country Daily sighting probability
1 Yogyakarta 🇮🇩 Indonesia
~30%
2 Tuen Mun 🇨🇳 China
~10%
3 Xiamen City 🇨🇳 China
~10%
4 Jakarta 🇮🇩 Indonesia
~10%
5 Hong Kong 🇨🇳 China
~10%
6 Guangzhou 🇨🇳 China
<5%

Before you go

What are the chances of seeing a Black Threadtail in Yogyakarta?

Possible

About 30% of wildlife watchers report a Black Threadtail sighting in Yogyakarta on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 36th most-seen of the 141 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.

When is the best time to see a Black Threadtail in Yogyakarta?

March and May–June

In those months about 40% of wildlife watchers report a Black Threadtail in Yogyakarta on a given day, against under 5% in July and October–December, the lowest months.

What time of day is best to see a Black Threadtail?

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.

Is Yogyakarta the best place to see a Black Threadtail?

Yes

Of the 6 cities where we can rate Black Threadtail sightings, Yogyakarta has the highest daily chance: about 30%. Next come Tuen Mun (China, about 10%) and Xiamen City (China, about 10%).

Where does the Black Threadtail sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Black Threadtail is recorded against all the insects logged in Yogyakarta (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.

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