Formosan Jewelwing

Formosan Jewelwing

Matrona cyanoptera

Endemic
Daily sighting probability ~10% · With luck
at Taipei

In 3 days ~30% in a week ~50%

127 Verified sightings at Taipei
20 In 1 park From 2019 to 2026
September Best month
☀️ Diurnal When it's spotted

About the Formosan Jewelwing

Matrona cyanoptera is a species of damselfly found in Taiwan. The common name for the species is Formosan jewelwing. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Taroko National Park 🇹🇼 Taiwan
~10%

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 Formosan Jewelwing in Taipei?

With luck

About 10% of wildlife watchers report a Formosan Jewelwing sighting in Taipei on a given day, based on 127 verified sightings from GBIF citizen-science data. It is the 107th most-seen of the 765 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.

When is the best time to see a Formosan Jewelwing in Taipei?

September

In that month about 20% of wildlife watchers report a Formosan Jewelwing in Taipei on a given day, against under 5% in January and February, the lowest months. That is one of Taipei's wettest months, with about 240 mm of rain against 90 mm in February.

What time of day is best to see a Formosan Jewelwing?

Between noon and 3 pm

Across all the parks we cover, that three-hour window holds the most Formosan Jewelwing 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 Formosan Jewelwing?

Only Taipei, in our data

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

Where does the Formosan Jewelwing sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Formosan Jewelwing is recorded against all the insects logged in Taipei (127 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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