Four-Bar Swordtail
Daily sighting probability ~10% · With luck
at Kaeng Krachan National Park

In 3 days ~30% in a week ~60%

20 Verified sightings at Kaeng Krachan National Park From 2019 to 2026
20 In 1 park
April Best month
☀️ Diurnal When it's spotted

About the Four-Bar Swordtail

Graphium agetes, the fourbar swordtail, is a widespread species of swallowtail butterfly found in tropical Asia. It is common and not threatened. Males and females upperside white. Forewing: cell crossed by three comparatively broad, oblique black bands, the innermost produced across interspaces 1 and la to the dorsal margin, the next to vein 1, sometimes a little beyond into interspace 1a, the third to the median vein; these are followed by a triangular costal black spot above the upper apex of the cell; a postdiscal oblique band similar to the others that extends from the costa to just above the tornus, where it joins a broad black terminal edging that lies between the apex of the wing and the tornus; the costal margin edged with a black thread which widens slightly beyond the postdiscal band. The white ground colour in the anterior half of the cell, beyond the apex of the latter to the postdiscal black band, and in the area between the postdiscal and terminal bands, is hyaline (glass like) with a greenish-yellow tinge. Hindwing: a spot at the tornal angle, the anal lobe, tail and terminal margin black; above the tornal spot is a short, comparatively broad, red band... Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability
1 Kaeng Krachan National Park 🇹🇭 Thailand
~10%

More parks will be added in future updates.

Before you go

What are the chances of seeing a Four-Bar Swordtail in Kaeng Krachan National Park?

With luck

About 10% of wildlife watchers report a Four-Bar Swordtail sighting in Kaeng Krachan National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 76th most-seen of the 296 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.

When is the best time to see a Four-Bar Swordtail in Kaeng Krachan National Park?

March–May and December

In those months about 20% of wildlife watchers report a Four-Bar Swordtail in Kaeng Krachan National Park on a given day, against under 5% in June–September and November, the lowest months.

What time of day is best to see a Four-Bar Swordtail?

Between 11 am and 2 pm

Across all the parks we cover, that three-hour window holds the most Four-Bar Swordtail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.

Where else can you see a Four-Bar Swordtail?

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 Four-Bar Swordtail sightings: about 10% of wildlife watchers there report one on a given day.

Which relatives of the Four-Bar Swordtail live in Kaeng Krachan National Park?

Same genus: Graphium

The closest relatives of the Four-Bar Swordtail that you can see in Kaeng Krachan National Park (genus Graphium, Swordtails, Jays, Bluebottles and allies) are Common Bluebottle (about 30%), Tailed Jay (about 30%) and Chain Swordtail (about 20%), with each one's daily chance of a sighting.

Where does the Four-Bar Swordtail sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Four-Bar Swordtail is recorded against all the insects logged in Kaeng Krachan National Park (20 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.

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