Slender Blue Skimmer

Slender Blue Skimmer

Orthetrum luzonicum

Daily sighting probability ~30% · Possible
at Sinharaja Forest Reserve

In 3 days ~70% in a week ~90%

28 Verified sightings at Sinharaja Forest Reserve From 2019 to 2026
59 In all 4 parks
September Best month
☀️ Diurnal When it's spotted

About the Slender Blue Skimmer

The marsh skimmer, also known as tricolored marsh hawk, and slender blue skimmer, (Orthetrum luzonicum) is a species of dragonfly in the family Libellulidae. It is widespread in many Asian countries. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Sinharaja Forest Reserve 🇱🇰 Sri Lanka
~30%
2 Doi Inthanon National Park 🇹🇭 Thailand
~20%
3 Khao Yai National Park 🇹🇭 Thailand
~10%
4 Kaeng Krachan National Park 🇹🇭 Thailand
~10%

Cities Where Found

# City Country Daily sighting probability
1 Thiruvananthapuram 🇮🇳 India
~40%
2 Kozhikode 🇮🇳 India
~20%
3 Mysuru 🇮🇳 India
~20%
4 Colombo [Sri Jayawardenepura Kotte] 🇱🇰 Sri Lanka
~10%
5 Singapore 🇸🇬 Singapore
~10%
6 Kochi 🇮🇳 India
~10%
7 Pune 🇮🇳 India
~10%
8 Kuala Lumpur 🇲🇾 Malaysia
~10%
9 Taipei 🇹🇼 Taiwan
~10%
10 Hong Kong 🇨🇳 China
~10%

Before you go

What are the chances of seeing a Slender Blue Skimmer in Sinharaja Forest Reserve?

Possible

About 30% of wildlife watchers report a Slender Blue Skimmer sighting in Sinharaja Forest Reserve on a given day, based on 28 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 13th most-seen of the 117 insects we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.

When is the best time to see a Slender Blue Skimmer in Sinharaja Forest Reserve?

August and September

In those months about 50% of wildlife watchers report a Slender Blue Skimmer in Sinharaja Forest Reserve on a given day, against under 5% in July and November–January, the lowest months.

What time of day is best to see a Slender Blue Skimmer?

Between 9 am and noon

Across all the parks we cover, that three-hour window holds the most Slender Blue Skimmer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.

Is Sinharaja Forest Reserve the best place to see a Slender Blue Skimmer?

Yes

Of the 4 parks where we can rate Slender Blue Skimmer sightings, Sinharaja Forest Reserve has the highest daily chance: about 30%. Next come Doi Inthanon National Park (Thailand, about 20%) and Khao Yai National Park (Thailand, about 10%).

Where does the Slender Blue Skimmer sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Slender Blue Skimmer is recorded against all the insects logged in Sinharaja Forest Reserve (28 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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