Arhopala aedias
In 3 days ~20% in a week ~40%
Arhopala aedias, the large metallic oakblue, is a species of butterfly belonging to the lycaenid family described by William Chapman Hewitson in 1862. It is found in Southeast Asia (Burma, Thailand, Peninsular Malaya, Sumatra, Bangka, Nias, Borneo and the Philippines).
This species is in the male above magnificently lustrous light blue with a slight violet reflection; easily recognizable also by the under surface where the postmedian band of the forewing is divided into 2 oblique, almost parallel demi-bands. In the hindwing the same band is not interrupted, but
very irregularly edged. The species has long tails. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kaeng Krachan National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Large Metallic Oakblue sighting in Kaeng Krachan National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 219th most-seen of the 296 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.
August
In that month about 20% of wildlife watchers report a Large Metallic Oakblue in Kaeng Krachan National Park on a given day, against under 5% in May–July and September–February, the lowest months. That is one of Kaeng Krachan National Park's wettest months, with about 200 mm of rain against 30 mm in December.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Large Metallic Oakblue sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Kaeng Krachan National Park, in our data
Kaeng Krachan National Park is the only park on Wallace's Line with enough records to rate Large Metallic Oakblue sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Lycaenidae
The closest relatives of the Large Metallic Oakblue that you can see in Kaeng Krachan National Park (family Lycaenidae, Gossamer-winged Butterflies) are Straight Pierrot (about 20%), Common Pierrot (about 20%) and Common Hedge Blue (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Large Metallic Oakblue is recorded against all the insects logged in Kaeng Krachan National Park (6 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.
