Choristoneura diversana
In 3 days ~10% in a week ~20%
Choristoneura diversana is a species of moth of the family Tortricidae. It is found in Great Britain, France, Belgium, the Netherlands, Germany, Denmark, Austria, Switzerland, Italy, the Czech Republic, Slovakia, Slovenia, Poland, Bulgaria, Hungary, Romania, Norway, Sweden, Finland, the Baltic region, Russia and the Near East. In the east, the range extends to China (Heilongjiang), Korea and Japan. The habitat consists of gardens, scrub and fens.
The wingspan is 15–20 mm for males and 19–23 mm for females. Adults have been recorded on wing from June to August in western Europe. The larvae feed on Acer pictum, Achillea (including Achillea millefolium), Alnus (including Alnus hirsuta), Betula, Lonicera (including Lonicera periclymenum), Trifolium, Quercus (including Quercus acutissima, Quercus robur), Syringa, Populus (including Populus nigra), Salix, Ulmus (including Ulmus davidiana, Ulmus laciniata), Prunus and Pyrus species, as well as Morus bombycis, Abies concolor, Abies holophylla, Abies sachalinensis, Larix kaempferi, Picea jezoensis, Rhamnus cathartica, Malus pumila and Malus sylvestris. They live within spun or rolled leaves of their host plant. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nizhny Novgorod | 🇷🇺 Russia | |
| 2 | Moscow | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Forest Twist sighting in Moscow on a given day, based on 35 verified sightings from GBIF citizen-science data. It is the 300th most-seen of the 1111 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 Forest Twist in Moscow on a given day, against under 5% in July to May, the lowest months.
Among the best
Of the 2 cities where we can rate Forest Twist sightings, Moscow ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Nizhny Novgorod (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Forest Twist is recorded against all the insects logged in Moscow (35 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.
