Pararge petropolitana
Lasiommata petropolitana, the northern wall brown, is a butterfly species belonging to the family Nymphalidae. It can be found in large parts of Europe, from the Pyrenees and Alps up to Scandinavia and Finland, east to Russia and Siberia. Source
Where it is now
No records in the last 8 weeks. It may be out of season where the observers and sensors are.
See the Pararge petropolitana on the live map
Arrival dates
The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.
| Region | First arrival | Last arrival | Typical peak | Areas |
|---|---|---|---|---|
| Europe | 18 May 2026 | 18 May 2026 | 1 June 2026 | 4 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.