Cyclophora ruficiliaria
In 3 days ~10% in a week ~20%
Cyclophora ruficiliaria, the Jersey mocha, is a moth of the family Geometridae. The species was first described by Gottlieb August Wilhelm Herrich-Schäffer in 1855. It can be found in Europe, in particular the Channel Islands as well as other parts of the mainland United Kingdom.
The first ever recorded sighting of the Jersey mocha on the British mainland was in July 2003 at Isle of Portland, Dorset. Subsequently, the butterfly has been found again in Dorset, and has set up a small breeding colony in south-west Cornwall. The first recorded sighting of the moth in Hertfordshire occurred in September 2016, on Roughdown Common. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pyrénées National Park | 🇫🇷 France |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Jersey Mocha sighting in London on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 1109th 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.
September
In that month about 10% of wildlife watchers report a Jersey Mocha in London on a given day, against under 5% in October to August, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Jersey Mocha sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Only London, in our data
London is the only city on Wallace's Line with enough records to rate Jersey Mocha sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Jersey Mocha is recorded against all the insects logged in London (9 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.
