Idaea fuscovenosa
In 3 days ~30% in a week ~60%
Idaea fuscovenosa, the dwarf cream wave, is a moth of the family Geometridae. It is found in the Palearctic. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Pyrénées National Park | 🇫🇷 France | |
| 3 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom | |
| 2 | Porto | 🇵🇹 Portugal | |
| 3 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 4 | Copenhagen | 🇩🇰 Denmark | |
| 5 | Vienna | 🇦🇹 Austria | |
| 6 | Birmingham | 🇬🇧 United Kingdom | |
| 7 | Paris | 🇫🇷 France | |
| 8 | Prague | 🇨🇿 Czechia |
With luck
About 10% of wildlife watchers report a Dwarf Cream Wave sighting in London on a given day, based on 244 verified sightings from GBIF citizen-science data. It is the 159th most-seen of the 1504 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
June and July
In those months about 20% of wildlife watchers report a Dwarf Cream Wave in London on a given day, against under 5% in August to May, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Dwarf Cream Wave sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Yes
Of the 8 cities where we can rate Dwarf Cream Wave sightings, London has the highest daily chance: about 10%. Next come Porto (Portugal, about 10%) and Rotterdam [The Hague] (Netherlands, under 5%).
Same genus: Idaea
The closest relatives of the Dwarf Cream Wave that you can see in London (genus Idaea) are Riband Wave (about 20%), Least Carpet (about 20%) and Small Dusty Wave (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dwarf Cream Wave is recorded against all the insects logged in London (244 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.
