Argynnis hyperbius
In 3 days ~60% in a week ~90%
The Indian fritillary (Argynnis hyperbius) is a species of butterfly of the nymphalid or brush-footed family. It is usually found from northeast, south and southeast Asia to Australia. Male: Upperside: forewing rich orange yellow, hindwing paler yellow, with the following black markings: Forewing: cell with a basal short transverse streak, a medial broad oval loop, its outer margin sinuous; a broad transverse streak beyond cell not reaching the median nervure; a broad streak along the discocellulars; a zigzag discal series of large spots, angulated outwardly in interspace 4, inwardly in interspace 2, a minute spot at base of interspace 1; a somewhat diffuse large postdiscal spot below the costa in interspace 6; a postdiscal sinuous series of round spots, those in interspaces 1 and 4 very small; an inner complete subterminal sinuous series of round spots; an outer subterminal line, widening on the veins, and a terminal slender line. Hindwing: a basal, transverse, obscure narrow mark in cell, another above it in interspace 7, a transverse lunule across the middle of the cell; a small spot outwardly bordering the lower discocellular; a discal series of transverse spots... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Horton Plains National Park | 🇱🇰 Sri Lanka | |
| 2 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 3 | Nikko National Park | 🇯🇵 Japan | |
| 4 | Taroko National Park | 🇹🇼 Taiwan | |
| 5 | Doi Inthanon National Park | 🇹🇭 Thailand |
Possible
About 30% of wildlife watchers report a Tropical Fritillary sighting in Osaka on a given day, based on 225 verified sightings from GBIF citizen-science data. It is the 5th most-seen of the 352 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
September and October
In those months about 40% of wildlife watchers report a Tropical Fritillary in Osaka on a given day, against under 5% in January and February, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Tropical Fritillary sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 28
Of the 28 cities where we can rate Tropical Fritillary sightings, Osaka ranks 6th at about 30%. The best odds are in Gwangju (South Korea, about 50%), Naha (Japan, about 40%) and Daejeon (South Korea, about 40%).
Same family: Nymphalidae
The closest relatives of the Tropical Fritillary that you can see in Osaka (family Nymphalidae, Brush-footed Butterflies) are Dot-Dash Sailer (about 10%), Asian Comma (about 10%) and Common Fivering (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Tropical Fritillary is recorded against all the insects logged in Osaka (225 verified sightings), 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.
