Peribatodes rhomboidaria
In 3 days ~20% in a week ~40%
The willow beauty (Peribatodes rhomboidaria) is a moth of the family Geometridae. It is a common species of Europe and adjacent regions (Near East and the Maghreb). While it is found widely throughout Scandinavian countries, which have a maritime climate, it is absent from parts of the former USSR which are at the same latitude but have a more continental climate.
Peribatodes rhomboidaria rhomboidaria (Denis & Schiffermüller, 1775) Peribatodes rhomboidaria sublutearia (Zerny 1927) Under its junior synonym Geometra rhomboidaria, the willow beauty is the type species of its genus Peribatodes. This was initially proposed as a subgenus of Boarmia but eventually elevated to full genus rank.
The adult's wingspan is 40–48 mm. The wings of this species are whitish-grey or -yellowish, though they have a buff or grey appearance from a distance, as they are heavily speckled with brown or black dots... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Pyrénées National Park | 🇫🇷 France | |
| 6 | Wadden Sea National Park | 🇩🇪 Germany | |
| 7 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 8 | Fertő-Hanság National Park | 🇭🇺 Hungary |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Kharkiv | 🇺🇦 Ukraine | |
| 4 | Birmingham | 🇬🇧 United Kingdom | |
| 5 | Budapest | 🇭🇺 Hungary | |
| 6 | Manchester | 🇬🇧 United Kingdom | |
| 7 | Kyiv | 🇺🇦 Ukraine | |
| 8 | Porto | 🇵🇹 Portugal | |
| 9 | Turin | 🇮🇹 Italy | |
| 10 | Sofia | 🇧🇬 Bulgaria |
With luck
About 10% of wildlife watchers report a Willow Beauty sighting in Rotterdam [The Hague] on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 153rd most-seen of the 355 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May–June and August–September
In those months about 10% of wildlife watchers report a Willow Beauty in Rotterdam [The Hague] on a given day, against under 5% in July and October–April, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Willow Beauty sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
28th of 34
Of the 34 cities where we can rate Willow Beauty sightings, Rotterdam [The Hague] ranks 28th at about 10%. The best odds are in Liverpool (United Kingdom, about 40%), London (United Kingdom, about 20%) and Kharkiv (Ukraine, about 20%).
Same family: Geometridae
The closest relatives of the Willow Beauty that you can see in Rotterdam [The Hague] (family Geometridae, Geometer Moths) are Small Dusty Wave (about 10%), Single-Dotted Wave (about 10%) and Yellow Shell Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Willow Beauty is recorded against all the insects logged in Rotterdam [The Hague] (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.
