Achaea serva
In 3 days ~10% in a week ~20%
Achaea serva is a species of noctuid moth of the family Erebidae first described by Johan Christian Fabricius in 1775. It is found from the Indo-Australian tropics of India, Sri Lanka, Myanmar, China, Borneo, Hong Kong, Java, the Philippines, the New Hebrides, to Okinawa, many western Micronesian islands and New Guinea and Australia. 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 an Achaea serva sighting in Hong Kong on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 613th 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.
February and October
In those months about 10% of wildlife watchers report an Achaea serva in Hong Kong on a given day, against under 5% in March–September and November–January, the lowest months. Those are among Hong Kong's driest months, with about 40 mm of rain a month against 280 mm in June.
5th of 6
Of the 6 cities where we can rate Achaea serva sightings, Hong Kong ranks 5th at under 5%. The best odds are in Chennai (India, about 10%), Kochi (India, about 10%) and Tuen Mun (China, under 5%).
Same family: Erebidae
The closest relatives of the Achaea serva that you can see in Hong Kong (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Banyan Tussock Moth (about 20%), Orvasca subnotata (about 20%) and Zhejiang Tussock Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Achaea serva is recorded against all the insects logged in Hong Kong (13 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.
