Tortricodes alternella
In 3 days ~10% in a week ~20%
Tortricodes alternella is a species of moth of the family Tortricidae. It is found in most of Europe, except most of the Balkan Peninsula. The wingspan is 19–23 mm. It slim moth, the forewings are quite narrow, grey or brown with a darker cross-band, occasionally the entire outer part is darker. The hindwings are pale brown with darker veins. It is similar to the male of Exapate congelatella, but flies in the spring, not in autumn.
Adults are on wing from February and April. The larvae feed on various trees and bushes, including Quercus and Carpinus species. They spin together the leaves of their host plant and feed within. 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 | Nizhny Novgorod | 🇷🇺 Russia | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Prague | 🇨🇿 Czechia | |
| 4 | Berlin | 🇩🇪 Germany | |
| 5 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Winter Shade sighting in London on a given day, based on 36 verified sightings from GBIF citizen-science data. It is the 673rd 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.
February
In that month about 20% of wildlife watchers report a Winter Shade in London on a given day, against under 5% in April to January, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Winter Shade sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 5 cities where we can rate Winter Shade sightings, London ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Nizhny Novgorod (Russia, under 5%).
Same family: Tortricidae
The closest relatives of the Winter Shade that you can see in London (family Tortricidae, Tortricid Leafroller Moths) are Light Brown Apple Moth (about 20%), Common Marble (about 10%) and Clepsis dumicolana (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Winter Shade is recorded against all the insects logged in London (36 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.
