Heliocypha perforata
In 3 days ~70% in a week ~90%
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 |
Possible
About 30% of wildlife watchers report a Common Blue Jewel sighting in Khao Sok National Park on a given day, based on 86 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 8th most-seen of the 104 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.
March and December–January
In those months about 40% of wildlife watchers report a Common Blue Jewel in Khao Sok National Park on a given day, against under 5% in June to November, the lowest months. Those are among Khao Sok National Park's driest months, with about 85 mm of rain a month against 280 mm in October.
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.
Yes
Of the 3 parks where we can rate Common Blue Jewel sightings, Khao Sok National Park has the highest daily chance: about 30%. Next come Doi Inthanon National Park (Thailand, about 10%) and Khao Yai 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 Sok National Park (86 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.
