Retinia cristata
In 3 days ~10% in a week ~20%
Retinia cristata is a moth of the family Tortricidae. It is found in Japan (the islands of Hokkaido, Honshu, Shikoku, and Ryukyu), Korea, northern and central China (Beijing, Tianjin, Hebei, Shanxi, Liaoning, Heilongjiang, Jiangsu, Zhejiang, Anhui, Jiangxi, Shandong, Henan, Hubei, Hunan, Guangdong, Guangxi, Sichuan, Yunnan, Shaanxi), Taiwan and Thailand.
The wingspan is 12–17 mm. Adults are on wing from mid-May and mid-September on Honshu. On Shikoku, adults were recorded in July and early August and on Kyushu in September and October. The larvae feed on shoots and cones of Pinus thurnbergii, Pinus densiflora and Pinus massoniana. The larvae can cause severe damage to young planted trees. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Beijing | 🇨🇳 China |
Rare
Under 5% of wildlife watchers report a Retinia cristata sighting in Beijing on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 321st most-seen of the 401 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.
June and August
In those months about 10% of wildlife watchers report a Retinia cristata in Beijing on a given day, against under 5% in July and September–May, the lowest months. Those are among Beijing's wettest months, with about 95 mm of rain a month against almost none in January.
Only Beijing, in our data
Beijing is the only city on Wallace's Line with enough records to rate Retinia cristata sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Retinia cristata is recorded against all the insects logged in Beijing (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.
