Cyclophora linearia
In 3 days ~30% in a week ~50%
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 Porto on a given day, based on 130 verified sightings from GBIF citizen-science data. It is the 77th most-seen of the 498 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
August
In that month about 20% of wildlife watchers report a Clay Triple-Lines in Porto on a given day, against under 5% in May and November–February, the lowest months. That is one of Porto's driest months, with about 20 mm of rain against 140 mm in January.
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.
Yes
Of the 3 cities where we can rate Clay Triple-Lines sightings, Porto has the highest daily chance: about 10%. Next come Vienna (Austria, under 5%) and London (United Kingdom, under 5%).
Same genus: Cyclophora
The closest relatives of the Clay Triple-Lines that you can see in Porto (genus Cyclophora, Mochas) are Blair's Mocha (about 20%) and Maiden's Blush (about 10%), 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 Porto (130 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.
