Horaga albimacula
In 3 days ~10% in a week ~20%
Horaga albimacula, the violet onyx, is a species of lycaenid or blue butterfly found in the Indomalayan realm. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Violet Onyx sighting in Hong Kong on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 925th 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 20%, if each day is a fresh chance.
July
In that month about 10% of wildlife watchers report a Violet Onyx in Hong Kong on a given day, against under 5% in August to June, the lowest months. That is one of Hong Kong's wettest months, with about 190 mm of rain against 25 mm in December.
Among the best
Of the 2 cities where we can rate Violet Onyx sightings, Hong Kong ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Taipei (Taiwan, under 5%).
GBIF citizen-science records
It is estimated from how often the Violet Onyx is recorded against all the insects logged in Hong Kong (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.
