Papilio arcturus
In 3 days ~20% in a week ~50%
Papilio arcturus, the blue peacock, is a species of swallowtail butterfly found in the Indian subcontinent. Male has the upper wings brownish black, somewhat paler on the forewing than on the hindwing. Forewing irrorated (sprinkled) with brilliant golden-green scales that on the posterior half of the wing form a broad, not well-defined subterminal band; the veins and elongate streaks between them on the outer half of the wing velvety black. Hindwing has the posterior three-fourths irrorated with brilliant golden-green scales as on the forewing but towards the base anteriorly these are blue; a conspicuous brilliant blue patch somewhat irregular in shape occupies the apex of the cell and the bases of interspaces 5 and 6, prolonged as a broad streak in the latter interspace up to the terminal margin; below this a more or less triangular patch on the disc and above it the whole of the costal margin broadly are devoid of the irroration of green scales; a subterminal generally incomplete series of large claret-red lunules terminates at the tornal angle in a large conspicuous black-centred red ocellus; the latter is encircled above and anteriorly by a narrow band formed... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Doi Inthanon National Park | 🇹🇭 Thailand |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Blue Peacock Swallowtail sighting in Doi Inthanon National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 131st most-seen of the 153 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
October
In that month about 20% of wildlife watchers report a Blue Peacock Swallowtail in Doi Inthanon National Park on a given day, against under 5% in April–September and December–January, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Blue Peacock Swallowtail sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Doi Inthanon National Park, in our data
Doi Inthanon National Park is the only park on Wallace's Line with enough records to rate Blue Peacock Swallowtail sightings: about 10% of wildlife watchers there report one on a given day.
Same genus: Papilio
The closest relatives of the Blue Peacock Swallowtail that you can see in Doi Inthanon National Park (genus Papilio, Common Swallowtails) are Lime Swallowtail (about 10%), Paris Peacock Swallowtail (about 10%) and Great Mormon Swallowtail (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Blue Peacock Swallowtail is recorded against all the insects logged in Doi Inthanon 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.
