Eucosma cana
In 3 days ~10% in a week ~20%
Eucosma cana, the hoary bell, is a species of moth of the family Tortricidae. This quite common and widespread species can be found in most of Europe, in China (Zhejiang, Fujian, Henan, Guangdong, Yunnan, Shaanxi, Gansu, Xinjiang), in Japan, in Central Asia, in Russia, and in Kazakhstan. These moths mainly inhabit flower meadows, rough grounds and waysides.
Eucosma cana can reach a body length of about 11.5 mm (0.45 in) and a wingspan of 16–23 mm. The head of these moths is reddish brown, while the thorax is light brownish on the sides, dark brownish in the middle. The ground colour of the forewings is light brown or greyish, with light longitudinal discal streaks. The edges are feathered. The hindwings are dark gray toward the margins. This species in rather similar to Eucosma hohenwartiana, which has a darker ground colour of the forewings, lacking the longitudinal lighter streaks. Meyrick describes it -The forewings are elongate, fold reaching to near middle; ochreous, somewhat blackish -sprinkled, with several suffused ochreous whitish longitudinal streaks confluent in middle towards base, ceasing before very narrow central fascia... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Hoary Bell sighting in London on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 1300th most-seen of the 1504 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 Hoary Bell in London on a given day, so our monthly data shows no clear season.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Hoary Bell sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 3 cities where we can rate Hoary Bell sightings, London ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Liverpool (United Kingdom, under 5%) and Birmingham (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Hoary Bell is recorded against all the insects logged in London (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.
