Syndemis musculana
In 3 days ~10% in a week ~30%
The name of the present species was misapplied to S. afflictana by Baron Walsingham in 1879. Syndemis musculana is a moth of the family Tortricidae. It is found in Europe, China (Heilongjiang, Jilin, Inner Mongolia), the Korean Peninsula, Japan, Russia (Amur) and North America.
The wingspan is 15–22 mm. The species lacks striking patterns and is also quite variable in colour, thus it is not easy to determine. The head, thoracic and forewing are more or less brownish grey. The forewing has a more or less distinct, wide, brown cross-band in the middle. The hindwings are light grey-brown.
The adults fly from April to July in the temperate parts of their range, such as Belgium and the Netherlands. The caterpillars feed on oaks (Quercus), birches (Betula), spruces (Picea), ragworts (Senecio) and Rubus (brambles and allies). Less usually, they have been recorded to eat plant refuse and dry leaves. 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 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Dark-Barred Tortrix sighting in Bavarian Forest National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 822nd most-seen of the 1115 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May
In that month about 10% of wildlife watchers report a Dark-Barred Tortrix in Bavarian Forest National Park on a given day, against under 5% in June to April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Dark-Barred Tortrix sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Dark-Barred Tortrix sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Tortricidae
The closest relatives of the Dark-Barred Tortrix that you can see in Bavarian Forest National Park (family Tortricidae, Tortricid Leafroller Moths) are Common Marble (about 10%), Arched Marble (about 10%) and Barred Fruit-Tree Tortrix (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark-Barred Tortrix is recorded against all the insects logged in Bavarian Forest National Park (6 verified sightings from 2019 to 2026), 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.
