Notodonta tritophus
In 3 days ~10% in a week ~20%
Notodonta tritophus, the three-humped prominent, is a moth of the family Notodontidae. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775. It is found in most of Europe (although it is a very rare immigrant Great Britain), east to the Caucasus and Armenia.
The wingspan is 45–55 mm. Adults are on wing from April to August in two generations in western Europe. The larvae mainly feed on Populus species, mainly aspen (Populus tremula), and sometimes willows (Salix species) and birch (Betula species). Larvae can be found from June to September. The species overwinters in the pupal stage. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vienna | 🇦🇹 Austria |
Rare
Under 5% of wildlife watchers report a Three-Humped Prominent 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Three-Humped Prominent in Vienna on a given day, so our monthly data shows no clear season.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Three-Humped Prominent sightings with a recorded time, and about 8 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 Three-Humped Prominent sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Three-Humped Prominent 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.
