Phyllonorycter coryli
In 3 days ~10% in a week ~20%
Phyllonorycter coryli, or nut leaf blister moth, is a moth of the family Gracillariidae. It is found most of Europe, except the Balkan Peninsula. The wingspan is 7–9 mm. The forewings are golden-ochreous, often fuscous-tinged, first costal spot dark-margined posteriorly. The larva is pale yellowish; dorsal line dark green; head pale brown.
The larvae feed on Corylus avellana, Corylus colurna, Corylus maxima and Ostrya carpinifolia. They mine the leaves of their host plant. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Birmingham | 🇬🇧 United Kingdom | |
| 4 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 5 | Manchester | 🇬🇧 United Kingdom | |
| 6 | Paris | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Nut Leaf Blister Moth sighting in Paris on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 827th most-seen of the 916 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.
October
In that month about 10% of wildlife watchers report a Nut Leaf Blister Moth in Paris on a given day, against under 5% in November to September, the lowest months.
6th of 6
Of the 6 cities where we can rate Nut Leaf Blister Moth sightings, Paris ranks 6th at under 5%. The best odds are in Liverpool (United Kingdom, about 10%), London (United Kingdom, about 10%) and Birmingham (United Kingdom, under 5%).
GBIF citizen-science records
It is estimated from how often the Nut Leaf Blister Moth is recorded against all the insects logged in Paris (5 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.
