Hypargyria metalliferella
In 3 days ~10% in a week ~30%
Hypargyria metalliferella, the silvered knothorn, is a species of snout moth in the genus Hypargyria. It was described by Émile Louis Ragonot in 1888. It is found in Namibia, South Africa, Australia (the Northern Territory, eastern Queensland and northern New South Wales), India and Sri Lanka.
The wingspan is 17–22 mm. The larvae feed on the leaves of Siphonodon australe from within a slight web. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Hong Kong | 🇨🇳 China |
Rare
Under 5% of wildlife watchers report a Hypargyria metalliferella sighting in Hong Kong on a given day, based on 18 verified sightings from GBIF citizen-science data. It is the 488th 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.
June–July and September–October
In those months about 10% of wildlife watchers report a Hypargyria metalliferella in Hong Kong on a given day, against under 5% in August and November–May, the lowest months. Those are among Hong Kong's wettest months, with about 170 mm of rain a month against 25 mm in December.
Only Hong Kong, in our data
Hong Kong is the only city on Wallace's Line with enough records to rate Hypargyria metalliferella sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Pyralidae
The closest relatives of the Hypargyria metalliferella that you can see in Hong Kong (family Pyralidae, Pyralid Snout Moths) are Guastica semilutea (about 10%), Nephopterix ochribasalis (about 10%) and Copamyntis leptocosma (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hypargyria metalliferella is recorded against all the insects logged in Hong Kong (18 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.
