Black-Tailed Marsh Dart

Black-Tailed Marsh Dart

Ceriagrion fallax

Daily sighting probability ~10% · With luck
at Taipei

In 3 days ~20% in a week ~50%

104 Verified sightings at Taipei
22 In 1 park From 2019 to 2026
July Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Doi Inthanon National Park 🇹🇭 Thailand
~20%

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Taipei 🇹🇼 Taiwan
~10%

Before you go

What are the chances of seeing a Black-Tailed Marsh Dart in Taipei?

With luck

About 10% of wildlife watchers report a Black-Tailed Marsh Dart sighting in Taipei on a given day, based on 104 verified sightings from GBIF citizen-science data. It is the 118th most-seen of the 765 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.

When is the best time to see a Black-Tailed Marsh Dart in Taipei?

April to September

In those months about 10% of wildlife watchers report a Black-Tailed Marsh Dart in Taipei on a given day, against under 5% in October to March, the lowest months.

What time of day is best to see a Black-Tailed Marsh Dart?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Black-Tailed Marsh Dart sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Black-Tailed Marsh Dart?

Only Taipei, in our data

Taipei is the only city on Wallace's Line with enough records to rate Black-Tailed Marsh Dart sightings: about 10% of wildlife watchers there report one on a given day.

Where does the Black-Tailed Marsh Dart sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Black-Tailed Marsh Dart is recorded against all the insects logged in Taipei (104 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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