Orgyia thyellina
In 3 days ~10% in a week ~20%
Orgyia thyellina, the white-spotted tussock moth, is a species of moth of the subfamily Lymantriinae first described by Arthur Gardiner Butler in 1881.. The wingspan is 21–29 mm for males and 30–42 mm for females of the first two generations.
The larvae mainly feed on Rosaceae species, including mulberry (Morus), Pyrus, Prunus avium, Prunus domestica and Malus. Other recorded food plants include Rosa, Prunus persica, Salix, Betula, Quercus, Acer negundo, Wisteria, Kennedia, Clianthus puniceus, and Citrus × paradisi. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tokyo | 🇯🇵 Japan |
Rare
Under 5% of wildlife watchers report a White-Spotted Tussock Moth sighting in Tokyo on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 557th most-seen of the 1013 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a White-Spotted Tussock Moth in Tokyo on a given day, so our monthly data shows no clear season.
Only Tokyo, in our data
Tokyo is the only city on Wallace's Line with enough records to rate White-Spotted Tussock Moth sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Erebidae
The closest relatives of the White-Spotted Tussock Moth that you can see in Tokyo (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Japanese Nine-Spotted Moth (about 10%), Ramie Moth (about 10%) and Brown-Striped Semilooper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-Spotted Tussock Moth is recorded against all the insects logged in Tokyo (14 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.
