Theretra japonica
In 3 days ~30% in a week ~50%
Theretra japonica is a moth of the family Sphingidae first described by Jean Baptiste Boisduval in 1869. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Theretra japonica sighting in Shanghai on a given day, based on 28 verified sightings from GBIF citizen-science data. It is the 58th most-seen of the 215 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.
April to October
In those months about 10% of wildlife watchers report a Theretra japonica in Shanghai on a given day, against under 5% in November to March, the lowest months.
Among the best
Of the 9 cities where we can rate Theretra japonica sightings, Shanghai ranks 6th at about 10%, level with the leaders once rounded. The best odds are in Nagoya (Japan, about 10%), Seoul (South Korea, about 10%) and Wuhan (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Theretra japonica is recorded against all the insects logged in Shanghai (28 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.
