Phyllonorycter issikii
In 3 days ~20% in a week ~30%
The lime leaf miner (Phyllonorycter issikii) is a moth of the family Gracillariidae. It is native to Japan, Korea and eastern Russia, but was probably introduced to eastern Europe around 1970. It is now widespread in the Czech Republic and Slovakia and is expanding its range in Hungary and Germany. It has also been recorded from the Baltic states and also the Benelux in 2009.
The wingspan is 7-7.5 mm. Adults are on wing from the end of June to mid-July and from the end of July to the end of August in two generations. The larvae feed on Tilia americana, Tilia cordata and Tilia platyphyllos. They mine the leaves of their host plant. 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 | Minsk | 🇧🇾 Belarus | |
| 2 | Moscow | 🇷🇺 Russia | |
| 3 | Helsinki | 🇫🇮 Finland | |
| 4 | Munich | 🇩🇪 Germany | |
| 5 | Nizhny Novgorod | 🇷🇺 Russia | |
| 6 | Berlin | 🇩🇪 Germany | |
| 7 | Saint Petersburg | 🇷🇺 Russia | |
| 8 | Vienna | 🇦🇹 Austria |
With luck
About 10% of wildlife watchers report a Lime Leafminer sighting in Bavarian Forest National Park on a given day, based on 10 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 585th most-seen of the 1115 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
March–April and July–September
In those months about 10% of wildlife watchers report a Lime Leafminer in Bavarian Forest National Park on a given day, against under 5% in May–June and October–February, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Lime Leafminer sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Lime Leafminer sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Lime Leafminer is recorded against all the insects logged in Bavarian Forest National Park (10 verified sightings from 2019 to 2026), 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.
