Euthrix potatoria
In 3 days ~10% in a week ~20%
Euthrix potatoria, the drinker, is an orange-brown moth of the family Lasiocampidae. The species' common and scientific names derive from the larva's supposed drinking of drops of dew. The scientific name Euthryx potatoria was given to this moth by Carl Linnaeus in 1758. In choosing the name potatoria 'drinker-like', he was inspired by the Dutch entomologist Johannes Goedaert, who had called the animal dronckaerdt 'drunkard' "because it is very much inclined to drinking". This remark refers to the moth's habit of repeatedly plunging its head into the water. The English name drinker (moth) also refers to Goedaert's analogy.
The imago has a wingspan of 4.5–6.5 cm (1.8–2.6 in). The yellowish females are slightly larger than... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Biebrza National Park | 🇵🇱 Poland | |
| 3 | Białowieża National Park | 🇵🇱 Poland | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manchester | 🇬🇧 United Kingdom | |
| 2 | Liverpool | 🇬🇧 United Kingdom | |
| 3 | Copenhagen | 🇩🇰 Denmark | |
| 4 | Birmingham | 🇬🇧 United Kingdom | |
| 5 | Nizhny Novgorod | 🇷🇺 Russia | |
| 6 | Paris | 🇫🇷 France | |
| 7 | Moscow | 🇷🇺 Russia | |
| 8 | Vienna | 🇦🇹 Austria | |
| 9 | Saint Petersburg | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Drinker Moth sighting in Vienna on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 838th 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 Drinker Moth in Vienna on a given day, so our monthly data shows no clear season.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Drinker Moth sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
8th of 9
Of the 9 cities where we can rate Drinker Moth sightings, Vienna ranks 8th at under 5%. The best odds are in Manchester (United Kingdom, about 10%), Liverpool (United Kingdom, about 10%) and Copenhagen (Denmark, under 5%).
GBIF citizen-science records
It is estimated from how often the Drinker Moth is recorded against all the insects logged in Vienna (11 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.
