Vestal Cuckoo Bee
Bombus vestalis

Bombus vestalis, the vestal cuckoo bumblebee, is a species of cuckoo bumblebee that lives in most of Europe, as well as North Africa and western Asia. It is a brood parasite that takes over the nests of other bee species. Its primary host is Bombus terrestris. After its initial classification as Psithyrus vestalis, this bumblebee was recently reclassified into the genus Bombus, subgenus Psithyrus. 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 Vestal Cuckoo Bee on the live map
Movement and weather
Over the weeks it was present in the past year, its centre in Europe ranged from 43°N in June to 53°N in July, about 1,000 km apart.
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 | 30 March 2026 | 30 March 2026 | 1 June 2026 | 1 |
Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.