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Athrips rancidella
In 3 days ~10% in a week ~20%
Athrips rancidella, the cotoneaster webworm, is a moth of the family Gelechiidae. It is found in most of Europe, except Ireland, the Netherlands, Fennoscandia and the Baltic region. It has also been recorded from Syria, Turkmenistan, Tajikistan and the United States (Oregon and California).
The wingspan is 11–12 mm. Adults have been recorded on wing in June. The larvae feed on Cotoneaster horizontalis, Prunus spinosa and Crataegus species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
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 Cotoneaster Webworm sighting in London on a given day, based on 14 verified sightings from GBIF citizen-science data. It is the 931st 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.
July
In that month about 10% of wildlife watchers report a Cotoneaster Webworm in London on a given day, against under 5% in August to June, the lowest months.
Only London, in our data
London is the only city on Wallace's Line with enough records to rate Cotoneaster Webworm sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Gelechiidae
The closest relatives of the Cotoneaster Webworm that you can see in London (family Gelechiidae, Twirler Moths) are Ash-Coloured Crest (about 10%), Dark Groundling (about 10%) and Cinerous Neb (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cotoneaster Webworm is recorded against all the insects logged in London (14 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.
