Amata fortunei
In 3 days ~30% in a week ~50%
Amata fortunei, the white-spotted moth, is a moth of the family Erebidae. The species was first described by d'Orza in 1869. It is found in Japan, South Korea and Taiwan. The wingspan is 30–37 mm. It is a day-flying species. There are two generations per year, with adults on wing from early June to mid July and again from mid August to mid September.
The larvae feed on the leaves of Trifolium repens, Taraxacum species, Equisetum arvense and Typha angustifolia. They are known to eat dead leaves as well as living tissue. 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 Japanese Nine-Spotted Moth sighting in Tokyo on a given day, based on 274 verified sightings from GBIF citizen-science data. It is the 61st most-seen of the 1013 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 30% of wildlife watchers report a Japanese Nine-Spotted Moth in Tokyo on a given day, against under 5% in July and October–May, the lowest months.
4th of 7
Of the 7 cities where we can rate Japanese Nine-Spotted Moth sightings, Tokyo ranks 4th at about 10%. The best odds are in Sendai (Japan, about 20%), Nagoya (Japan, about 20%) and Osaka (Japan, about 10%).
Same family: Erebidae
The closest relatives of the Japanese Nine-Spotted Moth that you can see in Tokyo (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Ramie Moth (about 10%), Brown-Striped Semilooper (about 10%) and Geometrical Lines (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Japanese Nine-Spotted Moth is recorded against all the insects logged in Tokyo (274 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.
