Treble Lines
Charanyca trigrammica
The Treble Lines (Charanyca trigrammica) is a moth of the family Noctuidae. It is found virtually throughout Europe.In addition, there are occurrences in Asia minor and the Caucasus.In the mountains it rises to altitudes of 1000 metres. 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 Treble Lines on the live map
Movement and weather
Each season it is first heard regularly where daytime highs are around 17°C (typically 17 to 18°C, from 5 areas). That holds across 15° of latitude, which suggests its timing follows temperature more than the calendar.
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 | 27 April 2026 | 18 May 2026 | 18 May 2026 | 5 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.