Ypthima argus
In 3 days ~40% in a week ~70%
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.
Possible
About 20% of wildlife watchers report a Common Fivering sighting in Nikko National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 53rd most-seen of the 86 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
August
In that month about 40% of wildlife watchers report a Common Fivering in Nikko National Park on a given day, against under 5% in February–July and September–December, the lowest months. That is one of Nikko National Park's wettest months, with about 230 mm of rain against 100 mm in November.
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.
Only Nikko National Park, in our data
Nikko National Park is the only park on Wallace's Line with enough records to rate Common Fivering sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Nymphalidae
The closest relatives of the Common Fivering that you can see in Nikko National Park (family Nymphalidae, Brush-footed Butterflies) are Mourning Cloak (about 30%), Diana Treebrown (about 30%) and Tropical Fritillary (about 30%), 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 Nikko National Park (6 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.
