Stegania trimaculata
In 3 days ~40% in a week ~70%
Stegania trimaculata, the Dorset cream wave, is a moth of the family Geometridae. It is found throughout Europe and India, mainly in Southern Europe, also in Borneo. The wingspan is 26–28 mm. The length of the forewings is 10–13 mm. The moth flies in two generations from May to September [1].
The larvae feed on various species of poplar. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 2 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Pyrénées National Park | 🇫🇷 France |
Possible
About 20% of wildlife watchers report a Dorset Cream Wave sighting in Sierra Nevada National Park on a given day, based on 21 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 113th most-seen of the 479 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.
April to July
In those months about 20% of wildlife watchers report a Dorset Cream Wave in Sierra Nevada National Park on a given day, against under 5% in October to March, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Dorset Cream Wave 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.
Yes
Of the 4 parks where we can rate Dorset Cream Wave sightings, Sierra Nevada National Park has the highest daily chance: about 20%. Next come Sierra de Guadarrama National Park (Spain, about 10%) and Cévennes National Park (France, about 10%).
Same family: Geometridae
The closest relatives of the Dorset Cream Wave that you can see in Sierra Nevada National Park (family Geometridae, Geometer Moths) are Vestal (about 20%), Idaea sericeata (about 20%) and Yellow Shell Moth (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dorset Cream Wave is recorded against all the insects logged in Sierra Nevada National Park (21 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.
