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 Nizhny Novgorod on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 351st most-seen of the 405 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 Nizhny Novgorod on a given day, against under 5% in July to May, the lowest months. That is one of Nizhny Novgorod's wettest months, with about 85 mm of rain against 40 mm in February.
Yes
Of the 2 cities where we can rate Forest Twist sightings, Nizhny Novgorod has the highest daily chance: under 5%. Next come Moscow (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Forest Twist is recorded against all the insects logged in Nizhny Novgorod (8 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.
