Iambrix salsala
In 3 days ~50% in a week ~80%
Iambrix salsala, the chestnut bob, is a butterfly belonging to the family Hesperiidae, that is found in parts of South Asia and Southeast Asia. The subspecies of Iambrix salsala found in India are- Iambrix salsala salsala Moore, 1865
Iambrix salsala luteipalpis Plötz, 1886 The butterfly occurs in Sri Lanka, India, Nepal, Myanmar, Thailand, Cambodia, Laos, north Vietnam, Hainan, Hong Kong, south Yunnan, Langkawi, Malaysia, Singapore, Tioman, Sumatra and Java.
In India, the butterfly flies in South India, Calcutta, along the Himalayas from Kumaon to Sikkim, Assam and eastwards to Myanmar. Edward Yerbury Watson (1891) states the butterfly's range as follows: Has been recorded from Bengal (Moore), Cachar (Wood-Mason and de Niceville); Tavoy (Elwes and de Niceville); Calcutta (de Niceville); Orissa (Taylor); Sikkim (de Niceville; Elwes).
Recorded as A. stellifer from Ceylon (Hutchison, Wade, Mackwood); Poona, Bombay (Swinhoe); and the Nilgiris (Hampson). Watson (1891) gives a detailed description, shown below: Male and female dark brown with olive-brown gloss. Male; upperside, forewing with two or three ill-defined yellowish spots ascending... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Namdapha National Park | 🇮🇳 India | |
| 2 | Periyar National Park | 🇮🇳 India | |
| 3 | Nagarhole National Park | 🇮🇳 India | |
| 4 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Thiruvananthapuram | 🇮🇳 India | |
| 2 | Kozhikode | 🇮🇳 India | |
| 3 | Chattogram | 🇧🇩 Bangladesh | |
| 4 | Kochi | 🇮🇳 India | |
| 5 | Ponnani | 🇮🇳 India | |
| 6 | Singapore | 🇸🇬 Singapore | |
| 7 | Thrissur | 🇮🇳 India | |
| 8 | Kollam | 🇮🇳 India | |
| 9 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 10 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka |
Possible
About 20% of wildlife watchers report a Chestnut Bob sighting in Chattogram on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 12th most-seen of the 35 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.
March
In that month about 50% of wildlife watchers report a Chestnut Bob in Chattogram on a given day, against under 5% in April–May, July and September–February, the lowest months. That is one of Chattogram's driest months, with about 40 mm of rain against 780 mm in July.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Chestnut Bob sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 18
Of the 18 cities where we can rate Chestnut Bob sightings, Chattogram ranks 3rd at about 20%. The best odds are in Thiruvananthapuram (India, about 30%) and Kozhikode (India, about 20%).
Same family: Hesperiidae
The closest relatives of the Chestnut Bob that you can see in Chattogram (family Hesperiidae, Skippers) are Pygmy Scrub Hopper (about 20%) and Pied Flat (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chestnut Bob is recorded against all the insects logged in Chattogram (6 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.
