Orchestes pilosus
In 3 days ~10% in a week ~20%
Orchestes pilosus is a beetle of the family Curculionidae found in Europe. It was first described by Johan Christian Fabricius in 1781. The larvae are leaf miners on oak (Quercus species). The mines are at the edge of a leaf, between two lobes and are found from April to June on the following species; Turkey oak (Quercus cerris), holm oak (Quercus ilex), sessile oak (Quercus petraea), downy oak (Quercus pubescens) and pedunculate oak (Quercus robur). The mines of Dyseriocrania subpurpurella are similar but when mature are much larger and not as dark, because the frass in O. pilosus mines stick to the inner surface of the mine. 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 an Orchestes pilosus sighting in London on a given day, based on 15 verified sightings from GBIF citizen-science data. It is the 895th 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.
April
In that month about 10% of wildlife watchers report an Orchestes pilosus in London on a given day, against under 5% in May to March, the lowest months.
Only London, in our data
London is the only city on Wallace's Line with enough records to rate Orchestes pilosus sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Orchestes pilosus is recorded against all the insects logged in London (15 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.
