Cyclophora linearia
In 3 days ~10% in a week ~20%
Cyclophora linearia, the clay triple-lines, is a moth of the family Geometridae. The species was first described by Jacob Hübner in 1799 and it can be found in Europe and (primarily in the southern half) Britain. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 3 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Clay Triple-Lines sighting in London on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 1153rd most-seen of the 1504 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
August
In that month about 10% of wildlife watchers report a Clay Triple-Lines in London on a given day, against under 5% in September to July, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Clay Triple-Lines sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
3rd of 3
Of the 3 cities where we can rate Clay Triple-Lines sightings, London ranks 3rd at under 5%. The best odds are in Porto (Portugal, about 10%) and Vienna (Austria, under 5%).
GBIF citizen-science records
It is estimated from how often the Clay Triple-Lines is recorded against all the insects logged in London (8 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.
