Cranberry Blue
Vacciniina optilete
Agriades optilete, the cranberry blue, is a butterfly of the family Lycaenidae. It is found in north eastern Europe, the Alps, North Asia, Japan, Korea and north western North America. 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 Cranberry Blue on the live map
Movement and weather
Each season it is first heard regularly where daytime highs are around 17°C (typically 16 to 19°C, from 5 areas).
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 | 8 June 2026 | 15 June 2026 | 29 June 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.