Bastilla joviana
In 3 days ~10% in a week ~30%
Bastilla joviana is a moth of the family Noctuidae first described by Caspar Stoll in 1782. It is found from the Oriental region to the Moluccas and in New Guinea and Australia. It is also present in South Africa. The larvae feed on Acalypha, Breynia and Phyllanthus species. 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 Bastilla joviana sighting in Tuen Mun on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 394th most-seen of the 557 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.
April–June, September and November
In those months about 10% of wildlife watchers report a Bastilla joviana in Tuen Mun on a given day, against under 5% in July–August, October and December–March, the lowest months.
Between 7 and 10 pm
Across all the parks we cover, that three-hour window holds the most Bastilla joviana sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 4 cities where we can rate Bastilla joviana sightings, Tuen Mun ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Hong Kong (China, about 10%).
Same family: Erebidae
The closest relatives of the Bastilla joviana that you can see in Tuen Mun (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Handmaiden Moth (about 20%), Amata sperbius (about 10%) and Banyan Tussock Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Bastilla joviana is recorded against all the insects logged in Tuen Mun (7 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.
