Euthalia aconthea
In 3 days ~60% in a week ~90%
Euthalia aconthea, the common baron, often called simply baron, is a medium-sized nymphalid butterfly native to Sri Lanka, India and southeast Asia. It flies with stiff wing beats and often glides. The wing is not flapped very far below the horizontal.
The male is brown with slight traces of olive. The forewing has two transverse short black lines at the base, a black loop across the middle, and another beyond the apex of the cell, with their centres dark brown, followed by an angulated discal dark brown band bordered outwardly by a series of five white spots; two preapical white spots beyond and a broad, somewhat diffuse, subterminal black band broadening over the apex and angulated inwards in interspace 1. Hindwing shaded with dark brown at base, two crescent-shaped dark brown loop-like marks in cell; a discal series of dark brown, elongate, outwardly acute, inwardly diffuse, somewhat hastate (spear-shaped) spots, followed by a subterminal series of small spots of the same colour. Underside ochraceous brown. Forewing on the underside shows five transverse slender black lines across cell; a black spot below median vein; discal and preapical white spots as on the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kalyan-Dombivli | 🇮🇳 India | |
| 2 | Jabalpur | 🇮🇳 India | |
| 3 | Dhaka | 🇧🇩 Bangladesh | |
| 4 | Bengaluru | 🇮🇳 India | |
| 5 | Ponnani | 🇮🇳 India | |
| 6 | Pune | 🇮🇳 India | |
| 7 | Mumbai | 🇮🇳 India | |
| 8 | Kozhikode | 🇮🇳 India | |
| 9 | Chandigarh | 🇮🇳 India | |
| 10 | Chattogram | 🇧🇩 Bangladesh |
Possible
About 30% of wildlife watchers report a Common Baron sighting in Bengaluru on a given day, based on 289 verified sightings from GBIF citizen-science data. It is the 10th most-seen of the 477 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
In that month about 40% of wildlife watchers report a Common Baron in Bengaluru on a given day, against about 20% in February–May and October–December, the lowest months. That is one of Bengaluru's wettest months, with about 150 mm of rain against almost none in January.
Among the best
Of the 33 cities where we can rate Common Baron sightings, Bengaluru ranks 4th at about 30%, level with the leaders once rounded. The best odds are in Kalyan-Dombivli (India, about 30%), Jabalpur (India, about 30%) and Dhaka (Bangladesh, about 30%).
Same genus: Euthalia
The closest relatives of the Common Baron that you can see in Bengaluru (genus Euthalia, Baron and Duke Butterflies) are Gaudy Baron (about 10%) and Baronet (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Common Baron is recorded against all the insects logged in Bengaluru (289 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.
