Phyllodesma tremulifolia
In 3 days ~10% in a week ~20%
Phyllodesma tremulifolium, the aspen lappet, is a moth of the family Lasiocampidae. It is found in Europe. The length of the forewings is 15–18 mm for the males and 18–20 mm for the females. The moth flies from April to July depending on the location.
The larvae feed on various deciduous trees, such as oak, poplar and birch. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vienna | 🇦🇹 Austria |
Rare
Under 5% of wildlife watchers report a Phyllodesma tremulifolia sighting in Vienna on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 1178th most-seen of the 1406 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.
April
In that month about 10% of wildlife watchers report a Phyllodesma tremulifolia in Vienna on a given day, against under 5% in May to March, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Phyllodesma tremulifolia sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Vienna, in our data
Vienna is the only city on Wallace's Line with enough records to rate Phyllodesma tremulifolia sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Phyllodesma tremulifolia is recorded against all the insects logged in Vienna (6 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.
