Hypopyra vespertilio
In 3 days ~10% in a week ~20%
Hypopyra vespertilio is a moth of the family Erebidae first described by Johan Christian Fabricius in 1787. It is found in China, Korea, Honshu in Japan, India (Maharashtra, Jammu and Kashmir, West Bengal), Sri Lanka, Nepal, Thailand, Myanmar, Cambodia, Vietnam, Taiwan, Malaysia, the Philippines, Java, Sumatra and Sulawesi.
The wingspan is 74–90 mm in male and 72–104 mm in female. Male has minutely fasciculate antennae. Male with an erectile tuft of long hair from femur-tibial joint of forelegs. Tibia and hind tarsi not fringed with long hair, nor the hindwings clothed with long woolly hair on ventral side. The wings are grey suffused with slight fuscous brown. The forewings have the stigma usually reduced to spots or to two spots on discocellulars. The antemedial line is excurved below the costa then oblique to the inner margin. There is a double postmedial line, angled below the costa. The postmedial line is crenulate. The hindwings are fuscous brown with antemedial oblique lines. The medial and submarginal lines are crenulate and the inner margin is crimson. The darkest form is vespertilio which has the male dark brown; the costal and outer areas of forewing suffused... 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 Hypopyra vespertilio sighting in Hong Kong on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 1005th 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.
March
In that month about 10% of wildlife watchers report a Hypopyra vespertilio in Hong Kong on a given day, against under 5% in April to February, the lowest months.
Among the best
Of the 4 cities where we can rate Hypopyra vespertilio sightings, Hong Kong ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Shanghai (China, under 5%).
Same family: Erebidae
The closest relatives of the Hypopyra vespertilio 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 Hypopyra vespertilio is recorded against all the insects logged in Hong Kong (5 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.
