Celaenorrhinus leucocera
In 3 days ~10% in a week ~30%
Celaenorrhinus leucocera, commonly known as the common spotted flat, is a species of butterfly belonging to the family Hesperiidae. It is a common butterfly generally found in the wet forested hills of southern Asia, from India and the Himalayas east through Indo-China. The upper surfaces of the wings are dark brown with white bands and small white spots towards the tip of the wings.
The butterfly has a wingspan of 45 to 55 mm. It is dark brown above. The forewing has a band of more or less connected discal spots, which are white and semi-transparent. Of this band, two spots, i.e. the one in end cell, and that at 2; are rectangular and connected to more or less degree. The butterfly also has small white spots in the apex of the forewing. The hindwing has a few obscure, opaque yellow spots. The hindwing margins are chequered black and white.
The male has plain white antenna shafts, while the female has plain brown shafts with white clubs. It is a very variable species. Edward Yerbury Watson (1891) gives a detailed description, shown below: All wings dark brown; some spots and a minute dot in the middle of the forewing, a small crescent at... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Common Spotted Flat sighting in Kochi on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 260th most-seen of the 428 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
April, September and November–February
In those months about 10% of wildlife watchers report a Common Spotted Flat in Kochi on a given day, against under 5% in March, May–August and October, the lowest months. Those are among Kochi's driest months, with about 110 mm of rain a month against 490 mm in June.
Yes
Of the 2 cities where we can rate Common Spotted Flat sightings, Kochi has the highest daily chance: under 5%. Next come Hong Kong (China, under 5%).
GBIF citizen-science records
It is estimated from how often the Common Spotted Flat is recorded against all the insects logged in Kochi (10 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.
