Libellago lineata
In 3 days ~40% in a week ~70%
Libellago lineata, the river heliodor, is a species of damselfly in the family Chlorocyphidae. It is found in many Asian countries. The species is found in clear streams or rivers. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Sok National Park | 🇹🇭 Thailand | |
| 2 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 3 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yogyakarta | 🇮🇩 Indonesia | |
| 2 | Denpasar | 🇮🇩 Indonesia | |
| 3 | Jakarta | 🇮🇩 Indonesia | |
| 4 | Singapore | 🇸🇬 Singapore |
Possible
About 20% of wildlife watchers report a Golden Gem sighting in Cat Tien National Park on a given day, based on 12 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 58th most-seen of the 125 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
May
In that month about 40% of wildlife watchers report a Golden Gem in Cat Tien National Park on a given day, against under 5% in August–September and December–March, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Golden Gem sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 3 parks where we can rate Golden Gem sightings, Cat Tien National Park ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Khao Sok National Park (Thailand, about 20%).
Same order: Odonata
The closest relatives of the Golden Gem that you can see in Cat Tien National Park (order Odonata, Dragonflies and Damselflies) are Russet Percher (about 40%), Chalky Percher (about 30%) and Asian Blood Tail (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Golden Gem is recorded against all the insects logged in Cat Tien National Park (12 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.
