Ypthima huebneri
In 3 days ~50% in a week ~80%
Ypthima huebneri, the common fourring, is a species of Satyrinae butterfly found in Asia. Upperside greyish brown. Forewing with the usual comparatively large, bi-pupilled, yellow-ringed, black preapical ocellus. Hindwing usually with two, sometimes with three, very rarely without any, smaller similar uni-pupilled postdiscal ocelli. Underside greyish white, not very densely covered with transverse short brown striae. Forewing with the preapical ocellus as on the upperside, obscure discal and subterminal dull brown transverse fasciae and a narrow brown ring round the ocellus diffusely produced posteriorly. Hindwing with one apical and typically three postdiscal posterior ocelli placed in a curve; traces of transverse brown discal and subterminal fasciae in most specimens. Antenna, head, thorax and abdomen greyish brown, the abdomen paler beneath. Male without secondary sex-mark.
Similar, somewhat paler on both upper and under sides; the discal and subterminal transverse fasciae more pronounced; the ocelli on the underside of the hindwing minute or absent. Adults have a wingspan of 40–43 mm. Var. jocularia... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nagarhole National Park | 🇮🇳 India | |
| 2 | Periyar National Park | 🇮🇳 India | |
| 3 | Kanha National Park | 🇮🇳 India |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Jamshedpur | 🇮🇳 India | |
| 2 | Thiruvananthapuram | 🇮🇳 India | |
| 3 | Thrissur | 🇮🇳 India | |
| 4 | Kozhikode | 🇮🇳 India | |
| 5 | Berhampore | 🇮🇳 India | |
| 6 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 7 | Bengaluru | 🇮🇳 India | |
| 8 | Mysuru | 🇮🇳 India | |
| 9 | Kolkata | 🇮🇳 India | |
| 10 | Ponnani | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Common Four-Ring sighting in Kolkata on a given day, based on 70 verified sightings from GBIF citizen-science data. It is the 38th most-seen of the 213 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
July and September–October
In those months about 30% of wildlife watchers report a Common Four-Ring in Kolkata on a given day, against under 5% in February, the lowest month. Those are among Kolkata's wettest months, with about 250 mm of rain a month against 10 mm in December.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Common Four-Ring sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
9th of 15
Of the 15 cities where we can rate Common Four-Ring sightings, Kolkata ranks 9th at about 20%. The best odds are in Jamshedpur (India, about 40%), Thiruvananthapuram (India, about 30%) and Thrissur (India, about 30%).
GBIF citizen-science records
It is estimated from how often the Common Four-Ring is recorded against all the insects logged in Kolkata (70 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.
