Graphium aristeus
In 3 days ~20% in a week ~40%
Graphium aristeus, the chain swordtail, is a butterfly in the family Papilionidae (swallowtails). It is found in the Indomalayan and Australasian realms. subcontinental subspecies G. a. anticrates is protected by law in India. It is normally found in Sikkim, Bhutan, Meghalaya, West Bengal and Assam. In Pakistan, it is normally found in the reigns of Himalayas. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Khao Yai National Park | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Chain Swordtail sighting in Khao Yai National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 183rd most-seen of the 221 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.
March
In that month about 30% of wildlife watchers report a Chain Swordtail in Khao Yai National Park on a given day, against under 5% in April–May and July–February, the lowest months. That is one of Khao Yai National Park's driest months, with about 85 mm of rain against 330 mm in September.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Chain Swordtail sightings with a recorded time, and about 9 in 10 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 Chain Swordtail sightings, Khao Yai National Park ranks 3rd at about 10%. The best odds are in Cat Tien National Park (Vietnam, about 30%) and Kaeng Krachan National Park (Thailand, about 20%).
Same genus: Graphium
The closest relatives of the Chain Swordtail that you can see in Khao Yai National Park (genus Graphium, Swordtails, Jays, Bluebottles and allies) are Common Bluebottle (about 30%), Common Jay (about 20%) and Tailed Jay (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chain Swordtail is recorded against all the insects logged in Khao Yai National Park (5 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.
