Cyclophora linearia
In 3 days ~20% in a week ~40%
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 |
With luck
About 10% of wildlife watchers report a Clay Triple-Lines sighting in Snowdonia National Park on a given day, based on 5 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 336th most-seen of the 387 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Clay Triple-Lines in Snowdonia National Park on a given day, against under 5% in October 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.
Among the best
Of the 3 parks where we can rate Clay Triple-Lines sightings, Snowdonia National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Bavarian Forest National Park (Germany, about 10%).
Same family: Geometridae
The closest relatives of the Clay Triple-Lines that you can see in Snowdonia National Park (family Geometridae, Geometer Moths) are Brimstone Moth (about 30%), Small Phoenix (about 20%) and Peppered Moth (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Clay Triple-Lines is recorded against all the insects logged in Snowdonia National Park (5 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.
