Water Hairstreak

Water Hairstreak

Euaspa milionia

Daily sighting probability ~10% · With luck
at Taroko National Park

In 3 days ~20% in a week ~40%

7 Verified sightings at Taroko National Park From 2019 to 2026
7 In 1 park
June Best month
☀️ Diurnal When it's spotted

Global Distribution

Parks Where Found

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

More parks will be added in future updates.

Before you go

What are the chances of seeing a Water Hairstreak in Taroko National Park?

With luck

About 10% of wildlife watchers report a Water Hairstreak sighting in Taroko National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 315th most-seen of the 447 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.

When is the best time to see a Water Hairstreak in Taroko National Park?

May to August

In those months about 10% of wildlife watchers report a Water Hairstreak in Taroko National Park on a given day, against under 5% in September to April, the lowest months.

What time of day is best to see a Water Hairstreak?

Between 6 and 9 am

Across all the parks we cover, that three-hour window holds the most Water Hairstreak sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Water Hairstreak?

Only Taroko National Park, in our data

Taroko National Park is the only park on Wallace's Line with enough records to rate Water Hairstreak sightings: about 10% of wildlife watchers there report one on a given day.

Which relatives of the Water Hairstreak live in Taroko National Park?

Same family: Lycaenidae

The closest relatives of the Water Hairstreak that you can see in Taroko National Park (family Lycaenidae, Gossamer-winged Butterflies) are Burmese Bushblue (about 20%), Common Line Blue (about 20%) and Celastrina oreas (about 10%), with each one's daily chance of a sighting.

Where does the Water Hairstreak sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Water Hairstreak is recorded against all the insects logged in Taroko National Park (7 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.

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