Lyonetia clerkella
In 3 days ~20% in a week ~40%
Lyonetia clerkella, the apple leaf miner, is a moth in the family Lyonetiidae. It is found all over Europe, north-western Siberia, the Far East, northern Africa, the Middle East, Turkey, India and Japan. The wingspan is 7–9 mm. The forewings are shining white, sometimes partly or wholly suffused with fuscous; a brown or darker fuscous blotch in disc posteriorly; a bent transverse line beyond this, and three costal streaks connected with an apical spot brown or darker fuscous; a round black apical dot; a projecting blackish hook in apical cilia. Hindwings are dark grey. The larva is pale green.
Adults are on wing in June, August and from October to April in the Benelux. There are two or more generations per year. The larvae feed on various fruit trees, including Betulaceae and Rosaceae species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
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 | Helsinki | 🇫🇮 Finland | |
| 5 | Manchester | 🇬🇧 United Kingdom | |
| 6 | Nizhny Novgorod | 🇷🇺 Russia | |
| 7 | Copenhagen | 🇩🇰 Denmark | |
| 8 | Moscow | 🇷🇺 Russia |
With luck
About 10% of wildlife watchers report an Apple Leafminer sighting in London on a given day, based on 126 verified sightings from GBIF citizen-science data. It is the 257th most-seen of the 1504 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
October
In that month about 20% of wildlife watchers report an Apple Leafminer in London on a given day, against under 5% in January to June, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Apple Leafminer sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
2nd of 8
Of the 8 cities where we can rate Apple Leafminer sightings, London ranks 2nd at about 10%. The best odds are in Liverpool (United Kingdom, about 30%).
GBIF citizen-science records
It is estimated from how often the Apple Leafminer is recorded against all the insects logged in London (126 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.
