Camptogramma bilineata
In 3 days ~40% in a week ~70%
Camptogramma bilineata, the yellow shell, is a colourful moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It can be found in Europe and east across the Palearctic to the Altai Mountains. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Biebrza National Park | 🇵🇱 Poland | |
| 3 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 4 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 5 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 6 | Wadden Sea National Park | 🇩🇪 Germany | |
| 7 | Aigüestortes National Park | 🇪🇸 Spain | |
| 8 | Picos de Europa National Park | 🇪🇸 Spain | |
| 9 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 10 | Cévennes National Park | 🇫🇷 France | |
| 11 | Triglav National Park | 🇸🇮 Slovenia | |
| 12 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 13 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Kharkiv | 🇺🇦 Ukraine | |
| 3 | Birmingham | 🇬🇧 United Kingdom | |
| 4 | London | 🇬🇧 United Kingdom | |
| 5 | Budapest | 🇭🇺 Hungary | |
| 6 | Kyiv | 🇺🇦 Ukraine | |
| 7 | Berlin | 🇩🇪 Germany | |
| 8 | Prague | 🇨🇿 Czechia | |
| 9 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 10 | Vienna | 🇦🇹 Austria |
Possible
About 20% of wildlife watchers report a Yellow Shell Moth sighting in London on a given day, based on 338 verified sightings from GBIF citizen-science data. It is the 91st most-seen of the 1504 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Yellow Shell Moth in London on a given day, against under 5% in October to April, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Yellow Shell Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Among the best
Of the 30 cities where we can rate Yellow Shell Moth sightings, London ranks 4th at about 20%, level with the leaders once rounded. The best odds are in Liverpool (United Kingdom, about 20%), Kharkiv (Ukraine, about 20%) and Birmingham (United Kingdom, about 20%).
Same family: Geometridae
The closest relatives of the Yellow Shell Moth that you can see in London (family Geometridae, Geometer Moths) are Riband Wave (about 20%), Least Carpet (about 20%) and Double-Striped Pug (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Yellow Shell Moth is recorded against all the insects logged in London (338 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.
