Thyas juno
In 3 days ~10% in a week ~20%
Thyas juno is a species of moth of the family Erebidae first described by Johan Wilhelm Dalman in 1823. It is found in the Indian subregion, China, Japan, Korea, Thailand, Borneo, Java, Sulawesi and on the southern Moluccas.
The larvae feed on Castanea, Quercus, Juglans and Pterocarya species. 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 Thyas juno sighting in Osaka on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 304th most-seen of the 352 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 and October
In those months about 10% of wildlife watchers report a Thyas juno in Osaka on a given day, against under 5% in August–September and November–June, the lowest months. Those are among Osaka's wettest months, with about 180 mm of rain a month against 55 mm in January.
Yes
Of the 3 cities where we can rate Thyas juno sightings, Osaka has the highest daily chance: under 5%. Next come Hong Kong (China, under 5%) and Tokyo (Japan, under 5%).
Same family: Erebidae
The closest relatives of the Thyas juno that you can see in Osaka (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Japanese Nine-Spotted Moth (about 10%), Ramie Moth (about 10%) and Barsine striata (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Thyas juno is recorded against all the insects logged in Osaka (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.
