Stag Beetle
Lucanus cervus

Lucanus cervus, known as the European stag beetle, or the greater stag beetle, is one of the best-known species of stag beetle in Western Europe, and is the eponymous example of the genus. L. cervus is listed as Near Threatened by the IUCN Red List. Source
Where it is now
In the last 8 weeks this insect was recorded 27 times across 2 areas (each area is a 5 degree square).
See the Stag Beetle on the live map
Movement and weather
Each season it is first heard regularly where daytime highs are around 15°C (typically 12 to 23°C, from 6 areas). That range is wide, so temperature alone does not explain when it turns up.
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 | 23 March 2026 | 25 May 2026 | 8 June 2026 | 6 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.