Vestalis gracilis
In 3 days ~30% in a week ~50%
Vestalis gracilis, is a species of damselfly belonging to the family Calopterygidae. It is known commonly as the clear-winged forest glory or clear-winged flash-wing. It is native to Southeast Asia and surrounding regions.
The male and female are similar in size; the male having an abdomen 45 to 46 millimeters long and a hindwing 34 to 38 millimeters long and the female with an abdomen 43 to 50 millimeters long and a hindwing 36 to 39 millimeters long.
The male is iridescent green with a yellow and black underside. It has brown legs and blue-tinged transparent wings. The eyes are dark brown above and greenish yellow below. The female is duller greenish brown in color. This is a common species across much of its range. It breeds in forest streams, often in disturbed and cultivated areas too. Commonly seen as a group rest among bushes in forest paths and shades together with Vestalis apicalis.
It is now synonymised with V. a. submontana and is considered as a separate species Vestalis submontana. List of odonates of India List... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Periyar National Park | 🇮🇳 India | |
| 3 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 4 | Khao Sok National Park | 🇹🇭 Thailand | |
| 5 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 6 | Kaeng Krachan National Park | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Plain Flashwing sighting in Doi Inthanon National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 90th most-seen of the 153 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.
May
In that month about 30% of wildlife watchers report a Plain Flashwing in Doi Inthanon National Park on a given day, against under 5% in February, April and July–December, the lowest months. That is one of Doi Inthanon National Park's wettest months, with about 290 mm of rain against 20 mm in February.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Plain Flashwing sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 6
Of the 6 parks where we can rate Plain Flashwing sightings, Doi Inthanon National Park ranks 5th at about 10%. The best odds are in Khao Yai National Park (Thailand, about 40%), Periyar National Park (India, about 30%) and Cat Tien National Park (Vietnam, about 20%).
Same family: Calopterygidae
The closest relatives of the Plain Flashwing that you can see in Doi Inthanon National Park (family Calopterygidae, Broad-winged Damselflies) are Mnais andersoni (about 40%), Matrona nigripectus (about 30%) and Vestalaria smaragdina (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Plain Flashwing is recorded against all the insects logged in Doi Inthanon 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.
