Ptycholomoides aeriferana
In 3 days ~10% in a week ~20%
Ptycholomoides aeriferana, the larch twist, is a species of moth of the family Tortricidae. It is found in China (Heilongjiang), the Korean Peninsula, Japan, Russia (Ussuri, Amur) and most of Europe. The wingspan is 17–21 mm for males and 19–24 mm for females. Adults are on wing from June to August.
The larvae feed on Acer acuminatum, Larix (including Larix leptolepis) and Betula species. They spin the needles of their host plant. Larvae can be found from May to June. Pupation takes place within the larval shelter. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Munich | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Larch Twist sighting in Munich on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 445th most-seen of the 521 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.
July
In that month about 10% of wildlife watchers report a Larch Twist in Munich on a given day, against under 5% in August to June, the lowest months. That is one of Munich's wettest months, with about 140 mm of rain against 60 mm in February.
Only Munich, in our data
Munich is the only city on Wallace's Line with enough records to rate Larch Twist sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Larch Twist is recorded against all the insects logged in Munich (5 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.
