Caprona ransonnettii
In 3 days ~30% in a week ~50%
Abaratha ransonnetii, commonly known as the golden angle, is a butterfly belonging to the family Hesperiidae. It was first described by Baron Cajetan von Felder in 1868. Abaratha ransonnetii ransonnetii (Sri Lanka) It occurs in India (Gujarat, Jharkhand, Odisha and southwards to Kerala) and Sri Lanka. In 1891, Edward Yerbury Watson gave this detailed description: Upperside fuliginous ochreous-brown. Male; forewing with three small semi-transparent white spots before the apex (and sometimes one or two very minute spots obliquely below them), two spots within end of the cell, a slender spot between the upper and middle median veins, a larger spot between the latter vein and submedian, and followed below it by two small obliquely disposed spots; a marginal double row of pale indistinct small lunules; hindwing with a broad medial discal macular pale ochreous band traversed by brown veins and a spot within end of the cell, the outer discal area suffused with grey-brown. Cilia alternated with white. Female; forewing with the spots and marginal lunules... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mumbai | 🇮🇳 India |
With luck
About 10% of wildlife watchers report a Golden Angle sighting in Mumbai on a given day, based on 48 verified sightings from GBIF citizen-science data. It is the 82nd most-seen of the 362 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June and September
In those months about 20% of wildlife watchers report a Golden Angle in Mumbai on a given day, against under 5% in March, May and November, the lowest months. Those are among Mumbai's wettest months, with about 460 mm of rain a month against almost none in January.
Only Mumbai, in our data
Mumbai is the only city on Wallace's Line with enough records to rate Golden Angle sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Hesperiidae
The closest relatives of the Golden Angle that you can see in Mumbai (family Hesperiidae, Skippers) are Indian Palm Bob (about 30%), Grass Demon (about 20%) and Common Awl (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Golden Angle is recorded against all the insects logged in Mumbai (48 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.
