Cratilla lineata
In 3 days ~20% in a week ~40%
Cratilla lineata, the line forest-skimmer, emerald-banded skimmer or pale-faced forest-skimmer, is a species of dragonfly in the family Libellulidae. It is found in many Asian countries. It is a medium-sized dragonfly with metallic-blue frons and brown-capped grey eyes. Its thorax is bronze-black, marked with yellow. There is a mid-dorsal carina, and an anterior and a posterior stripes narrowly separated and very irregular in shapes. There are four stripes on each side, the first and third rather broad, the others narrow. Abdomen is black, marked with bright ochreous-yellow. Segments 1 and 2 have moderately broad lateral and mid-dorsal stripes. Segments 3 to 8 have fine stripes bordering the ventral borders of segments and mid-dorsal carina. Arial appendages are black. Female is similar to the male.
It is commonly found in forested areas in lowland and montane regions. Prefers to breed in shaded muddy pools and marshes in forest. Three subspecies are recognized. Cratilla lineata lineata Brauer, 1878 List of odonates of Sri Lanka List of odonates... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 2 | Khao Sok National Park | 🇹🇭 Thailand | |
| 3 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 4 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 5 | Khao Yai National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 2 | Singapore | 🇸🇬 Singapore |
With luck
About 10% of wildlife watchers report an Emerald-Banded Skimmer sighting in Khao Yai National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 183rd most-seen of the 221 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.
May and September–October
In those months about 20% of wildlife watchers report an Emerald-Banded Skimmer in Khao Yai National Park on a given day, against under 5% in June, August and December–April, the lowest months. Those are among Khao Yai National Park's wettest months, with about 240 mm of rain a month against 15 mm in December.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Emerald-Banded Skimmer sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 5
Of the 5 parks where we can rate Emerald-Banded Skimmer sightings, Khao Yai National Park ranks 5th at about 10%. The best odds are in Danum Valley Conservation Area (Malaysia, about 20%), Khao Sok National Park (Thailand, about 20%) and Cat Tien National Park (Vietnam, about 10%).
Same family: Libellulidae
The closest relatives of the Emerald-Banded Skimmer that you can see in Khao Yai National Park (family Libellulidae, Skimmers) are Russet Percher (about 40%), Crimson Marsh Glider (about 40%) and Paddyfield Parasol (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Emerald-Banded Skimmer is recorded against all the insects logged in Khao Yai National Park (5 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.
