Perizoma flavofasciata
In 3 days ~10% in a week ~30%
Perizoma flavofasciata, the sandy carpet or sandy rivulet, is a moth of the family Geometridae. The species was first described by Carl Peter Thunberg in 1792. It is found in most of Europe and northern Africa and east across the Palearctic to the Urals and the Altai Mountains. The species prefers meadow valleys, floodplains, waterside areas, bushy meadows and gardens. In the Alps it rises to 1500 metres. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany | |
| 3 | Cévennes National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Sandy Carpet sighting in Cévennes National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 814th most-seen of the 996 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 Sandy Carpet in Cévennes National Park on a given day, against under 5% in June to April, the lowest months.
Between 11 pm and 2 am
Across all the parks we cover, that three-hour window holds the most Sandy Carpet 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.
3rd of 3
Of the 3 parks where we can rate Sandy Carpet sightings, Cévennes National Park ranks 3rd at under 5%. The best odds are in Bavarian Forest National Park (Germany, about 10%) and Wadden Sea National Park (Germany, under 5%).
Same family: Geometridae
The closest relatives of the Sandy Carpet that you can see in Cévennes National Park (family Geometridae, Geometer Moths) are Willow Beauty (about 20%), Portland Ribbon Wave (about 10%) and Chimney-Sweeper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sandy Carpet is recorded against all the insects logged in Cévennes 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.
