Formosan Slug Snake

Formosan Slug Snake

Pareas komaii

Silhouette: Marius Burger (photograph) · PhyloPic

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

In 3 days ~30% in a week ~60%

7 Verified sightings at Doi Inthanon National Park From 2019 to 2026
7 In 1 park
August Best month
🌙 Nocturnal When it's spotted

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Doi Inthanon National Park 🇹🇭 Thailand
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Formosan Slug Snake in Doi Inthanon National Park?

With luck

About 10% of wildlife watchers report a Formosan Slug Snake sighting in Doi Inthanon National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 22nd most-seen of the 30 reptiles we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see a Formosan Slug Snake in Doi Inthanon National Park?

August

In that month about 40% of wildlife watchers report a Formosan Slug Snake in Doi Inthanon National Park on a given day, against under 5% in January–June and September–November, the lowest months. That is one of Doi Inthanon National Park's wettest months, with about 340 mm of rain against 20 mm in February.

What time of day is best to see a Formosan Slug Snake?

Between 8 and 11 pm

Across all the parks we cover, that three-hour window holds the most Formosan Slug Snake sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.

Where else can you see a Formosan Slug Snake?

Only Doi Inthanon National Park, in our data

Doi Inthanon National Park is the only park on Wallace's Line with enough records to rate Formosan Slug Snake sightings: about 10% of wildlife watchers there report one on a given day.

Where does the Formosan Slug Snake sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Formosan Slug Snake is recorded against all the reptiles logged in Doi Inthanon 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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