Arhopala bazalus
In 3 days ~10% in a week ~30%
Arhopala bazalus, the powdered oakblue, is a lycaenid or blue butterfly first described by William Chapman Hewitson in 1852. It is found in Myanmar, mainland China, India (Assam, kerala and Sikkim), Indochina, Japan, the Philippines, and Taiwan. 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 Powdered Oakblue sighting in Hong Kong on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 362nd most-seen of the 1125 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.
October to January
In those months about 10% of wildlife watchers report a Powdered Oakblue in Hong Kong on a given day, against under 5% in February to September, the lowest months. Those are among Hong Kong's driest months, with about 35 mm of rain a month against 280 mm in June.
Among the best
Of the 5 cities where we can rate Powdered Oakblue sightings, Hong Kong ranks 4th at about 10%, level with the leaders once rounded. The best odds are in Nanjing (China, about 10%), Tokyo (Japan, about 10%) and Tuen Mun (China, about 10%).
Same family: Lycaenidae
The closest relatives of the Powdered Oakblue that you can see in Hong Kong (family Lycaenidae, Gossamer-winged Butterflies) are Pale Grass Blue (about 20%), Plains Cupid (about 20%) and Abisara echeria (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Powdered Oakblue is recorded against all the insects logged in Hong Kong (25 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.
