Ypthima argus
In 3 days ~40% in a week ~60%
Ypthima baldus, the common five-ring, is a species of butterfly in the subfamily Satyrinae found in Asia. Male: Upperside brown, both forewing and hindwing with terminal margins much darker, and generally with more or less distinct subbasal and discal dark bands. Forewing with a large, slightly oblique, oval, bi-pupilled, yellow-ringed black, pre-apical ocellus. Hindwing with two postdiscal, round, uni-pupilled, similar but smaller ocelli, and very often one or two minute tornal ocelli also.
Underside similar to the underside in Y. philomela but the ochraceous-white ground colour paler, thin transverse brown striae coarser, the ocelli on the hindwing more distinctly arranged in an echelon, two tornal, two median, and two preapical, and on both forewing and hindwing more or less distinctly defined, subbasal, discal and subterminal brown transverse bands.
Female: Differs on the upperside in having the area surrounding or bordering the ocelli on both forewing and hindwing paler, closely irrorated (sprinkled) with brown striae, the discal transverse band generally clearly defined, and very often both the tornal, and at least one of the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Common Fivering sighting in Tokyo on a given day, based on 500 verified sightings from GBIF citizen-science data. It is the 33rd most-seen of the 1013 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 60%, if each day is a fresh chance.
April–May, July and September
In those months about 20% of wildlife watchers report a Common Fivering in Tokyo on a given day, against under 5% in December to March, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Common Fivering sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 6
Of the 6 cities where we can rate Common Fivering sightings, Tokyo ranks 3rd at about 10%. The best odds are in Nagoya (Japan, about 20%) and Sendai (Japan, about 20%).
Same family: Nymphalidae
The closest relatives of the Common Fivering that you can see in Tokyo (family Nymphalidae, Brush-footed Butterflies) are Red Ring Skirt (about 20%), Tropical Fritillary (about 20%) and Asian Comma (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Fivering is recorded against all the insects logged in Tokyo (500 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.
