Paracolax tristalis
In 3 days ~10% in a week ~20%
Paracolax tristalis, the clay fan-foot, is a litter moth of the family Erebidae. The species was first described by Johan Christian Fabricius in 1794. It is found in the Palearctic realm. The wingspan is 28–35 mm. The moth flies from June to August depending on the location.
The larvae feed on various shrubs and deciduous trees. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Clay Fan-Foot sighting in Vienna on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 575th 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.
June and July
In those months about 10% of wildlife watchers report a Clay Fan-Foot in Vienna on a given day, against under 5% in August to May, the lowest months. Those are among Vienna's wettest months, with about 90 mm of rain a month against 40 mm in February.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Clay Fan-Foot 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.
Among the best
Of the 3 cities where we can rate Clay Fan-Foot sightings, Vienna ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Prague (Czechia, under 5%) and Berlin (Germany, under 5%).
Same family: Erebidae
The closest relatives of the Clay Fan-Foot that you can see in Vienna (family Erebidae, Underwing, Tiger, Tussock, and Allied Moths) are Nine-Spotted Moth (about 10%), Four-Spotted Moth (about 10%) and Jersey Tiger (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Clay Fan-Foot is recorded against all the insects logged in Vienna (22 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.
