Enarmonia formosana
In 3 days ~10% in a week ~20%
Enarmonia formosana, the cherry-bark moth or cherry bark tortrix, is a small but colourful moth species in the family Tortricidae, native to Asia, Europe, and northern Africa, and introduced in North America. It was first described by the Italian physician and naturalist Giovanni Antonio Scopoli in 1763 and is the type species of its genus (Enarmonia), and by extension of the tribe Enarmoniini of subfamily Olethreutinae.
The wingspan is 15–19 mm. The forewings have a moderately arched costa. The ground colour is ferruginous-ochreous, with leaden metallic striae. The costa is blackish, posteriorly strigulated with white. The basal patch has the edge sharply angulated in the middle and indented near the dorsum. The central fascia is interrupted in the middle dark fuscous, marked with ferruginous-ochreous. The ocellus is black, edged with leaden-metallic and streaked with ferruginous, surmounted by a dark fuscous curved mark. The hindwings are rather dark fuscous. The larva is creamy white with an orange-brown head.
The moths fly from May to October in the temperate parts of the range (e.g. Belgium and the Netherlands). The caterpillars feed on the bark of woody Rosaceae... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Birmingham | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom |
Rare
Under 5% of wildlife watchers report a Cherry Bark Tortrix sighting in London on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 795th 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.
May
In that month about 10% of wildlife watchers report a Cherry Bark Tortrix in London on a given day, against under 5% in June to April, the lowest months.
Among the best
Of the 2 cities where we can rate Cherry Bark Tortrix sightings, London ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Birmingham (United Kingdom, under 5%).
Same family: Tortricidae
The closest relatives of the Cherry Bark Tortrix that you can see in London (family Tortricidae, Tortricid Leafroller Moths) are Light Brown Apple Moth (about 20%), Common Marble (about 10%) and Clepsis dumicolana (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cherry Bark Tortrix is recorded against all the insects logged in London (20 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.
