Phigalia pilosaria
In 3 days ~10% in a week ~30%
Phigalia pilosaria, the pale brindled beauty, is a moth of the family Geometridae. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775. It is found from Europe and Anatolia to the Caucasus. The wingspan is 35–40 mm for males. Females are wingless. The male is grey with a more or less strong olivaceous tinge, sometimes mixed with some ochreous or with some whitish scales. The lines are variable,
thickened and darkened at the margins. The female is stouter than that of E. defoliaria, with a longer ovipositor and dorsally more or less brownish, abdomen spinose. — ab. extinctaria Stndf. is a paler, almost unicolorous form of the male - ab. monacharia Stgr. is unicolorous blackish or even quite black. Chiefly from Yorkshire. The larva is brown mottled with ferruginous, frequently with V-shaped ochreous dorsal marks on the 2nd and 3rd abdominal segments.
Adults are on wing from January to April. There is one generation per year. The larva feeds on various deciduous trees, including Quercus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Vienna | 🇦🇹 Austria | |
| 3 | Prague | 🇨🇿 Czechia | |
| 4 | Paris | 🇫🇷 France | |
| 5 | Berlin | 🇩🇪 Germany | |
| 6 | Moscow | 🇷🇺 Russia | |
| 7 | London | 🇬🇧 United Kingdom | |
| 8 | Copenhagen | 🇩🇰 Denmark | |
| 9 | Munich | 🇩🇪 Germany | |
| 10 | Saint Petersburg | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Pale Brindled Beauty sighting in Paris on a given day, based on 24 verified sightings from GBIF citizen-science data. It is the 309th most-seen of the 916 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.
April and December–February
In those months about 10% of wildlife watchers report a Pale Brindled Beauty in Paris on a given day, against under 5% in March and May–November, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Pale Brindled Beauty sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 10
Of the 10 cities where we can rate Pale Brindled Beauty sightings, Paris ranks 4th at under 5%. The best odds are in Liverpool (United Kingdom, about 10%), Vienna (Austria, under 5%) and Prague (Czechia, under 5%).
Same family: Geometridae
The closest relatives of the Pale Brindled Beauty that you can see in Paris (family Geometridae, Geometer Moths) are Mottled Umber (about 10%), Small Dusty Wave (about 10%) and Double-Striped Pug (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pale Brindled Beauty is recorded against all the insects logged in Paris (24 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.
