Heliocypha perforata
In 3 days ~30% in a week ~50%
Heliocypha perforata, also known by its common name common blue jewel, is a species of damselfly from the genus Heliocypha. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Sok National Park | 🇹🇭 Thailand | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 3 | Khao Yai National Park | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Common Blue Jewel sighting in Khao Yai National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 115th most-seen of the 221 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
March–April and September
In those months about 20% of wildlife watchers report a Common Blue Jewel in Khao Yai National Park on a given day, against under 5% in February, May–June, August and October–December, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Common Blue Jewel sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 parks where we can rate Common Blue Jewel sightings, Khao Yai National Park ranks 3rd at about 10%. The best odds are in Khao Sok National Park (Thailand, about 30%) and Doi Inthanon National Park (Thailand, about 10%).
GBIF citizen-science records
It is estimated from how often the Common Blue Jewel is recorded against all the insects logged in Khao Yai 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.
