Pandemis cerasana
In 3 days ~10% in a week ~20%
Pandemis cerasana, the barred fruit-tree tortrix, is a moth of the family Tortricidae. This quite common species is found in Europe, from the Iberian Peninsula to the Ural Mountains and the Caucasus, east to southern Siberia, Kazakhstan, Mongolia, China and the Far East. It is also found in Asia Minor and Iran. It is an introduced species in North America.
The barred fruit-tree tortrix live in woodland areas, gardens and orchards. The wingspan of Pandemis cerasana can reach 16–25 mm. Forewings ground colour ranges from pale ocher yellow to greyish brown with a large dark chestnut brown V marking and a dark brown lateral spot. The outer margin of forewings is sinuous, slightly oblique.
The hind wings are almost uniform greyish brown. Antennae of the males have a notch near the base. Larvae can reach a length of about 20 millimetres (0.79 in). They are light green, thin and flattened. Pupae are light brown to brownish black and reach a length of 9–15 millimetres (0.35–0.59 in). These tortrix moths usually rest holding their bell-shaped wings in a flattened posture.
In western Europe these moths fly from June to August,... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Birmingham | 🇬🇧 United Kingdom | |
| 3 | Nizhny Novgorod | 🇷🇺 Russia | |
| 4 | London | 🇬🇧 United Kingdom | |
| 5 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Barred Fruit-Tree Tortrix sighting in London on a given day, based on 21 verified sightings from GBIF citizen-science data. It is the 795th 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.
June
In that month about 10% of wildlife watchers report a Barred Fruit-Tree Tortrix in London on a given day, against under 5% in July to May, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Barred Fruit-Tree Tortrix sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
4th of 5
Of the 5 cities where we can rate Barred Fruit-Tree Tortrix sightings, London ranks 4th at under 5%. The best odds are in Liverpool (United Kingdom, about 10%), Birmingham (United Kingdom, under 5%) and Nizhny Novgorod (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Barred Fruit-Tree Tortrix is recorded against all the insects logged in London (21 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.
