Scopula immorata
In 3 days ~10% in a week ~30%
Scopula immorata, the Lewes wave, is a moth of the family Geometridae. It is found throughout Europe and the Near East. The wingspan is 20–27 millimetres (0.79–1.06 in). The moth flies in two generations from the end of June to mid August in western Europe.
The larva feeds on various low-growing plants like thyme and oregano. Mating occurs from the males seeking out females in simple courtship behavior, taking place at ~6-10am for an hour to an hour and a half. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Biebrza National Park | 🇵🇱 Poland | |
| 2 | Vanoise National Park | 🇫🇷 France | |
| 3 | Mercantour National Park | 🇫🇷 France | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nizhny Novgorod | 🇷🇺 Russia | |
| 2 | Berlin | 🇩🇪 Germany | |
| 3 | Prague | 🇨🇿 Czechia | |
| 4 | Helsinki | 🇫🇮 Finland | |
| 5 | Vienna | 🇦🇹 Austria | |
| 6 | Moscow | 🇷🇺 Russia | |
| 7 | Saint Petersburg | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Lewes Wave sighting in Berlin on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 447th most-seen of the 1065 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.
May–June and August
In those months about 10% of wildlife watchers report a Lewes Wave in Berlin on a given day, against under 5% in July and September–April, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Lewes Wave 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.
2nd of 7
Of the 7 cities where we can rate Lewes Wave sightings, Berlin ranks 2nd at under 5%. The best odds are in Nizhny Novgorod (Russia, about 10%).
GBIF citizen-science records
It is estimated from how often the Lewes Wave is recorded against all the insects logged in Berlin (16 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.
