Phaedyma columella
In 3 days ~30% in a week ~60%
Neptis columella, the short banded sailer, is a species of nymphalid butterfly found in South and Southeast Asia. Upperside black, with white markings. Forewing: discoidal streak widening towards apex, notched pre-apically on the anterior margin and obliquely truncate at apex; spot beyond large, broadly triangular, well separated; discal spots in pairs varying in size, spot of this series in interspace 1 always an elongate; spots in transverse postdiscal series obscure, not all well defined, margined on both sides with deeper black than that of the ground colour; the space between the series and the discal spots and also the terminal margin beyond it with obscure transverse pale markings. Hindwing: costal margin broadly greyish brown; subbasal band not extending to the costa, of varying width; discal and subterminal pale transverse lines, the space between them darker than the ground colour, traversed by a prominent series of postdiscal spots of varying size. Cilia white alternating with black. Underside ferruginous brown; white markings as on the upperside but broader; the pale markings between the discal and postdiscal series of spots, the subterminal markings on... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Short Banded Sailer sighting in Hong Kong on a given day, based on 148 verified sightings from GBIF citizen-science data. It is the 72nd most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July and November
In those months about 20% of wildlife watchers report a Short Banded Sailer in Hong Kong on a given day, against under 5% in January and February, the lowest months.
3rd of 6
Of the 6 cities where we can rate Short Banded Sailer sightings, Hong Kong ranks 3rd at about 10%. The best odds are in Singapore (Singapore, about 20%) and Tuen Mun (China, about 10%).
Same family: Nymphalidae
The closest relatives of the Short Banded Sailer that you can see in Hong Kong (family Nymphalidae, Brush-footed Butterflies) are Ceylon Blue Glassy Tiger (about 30%), Blue-Spotted Crow Butterfly (about 30%) and Great Eggfly (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Short Banded Sailer is recorded against all the insects logged in Hong Kong (148 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.
