- Psithyrus norvegicus Sparre-Schneider, 1918
- Psithyrus transbaicalicus Popov, 1927
No status defined
Value of species
One of 26 world known species of the subgenus Psithyrus (previously considered as a separate genus). One of 250 world known species of the genus Bombus, and one of 40 bumblebee species (8 cuckoo bee species among them) in the fauna of Ukraine. All species of the subgenus Psithyrus are obligate social parasites ('cuckoos') in colonies of the other social Bombus species. Females lack pollen-collecting corbiculae on the hind legs, there is no worker caste.
Distribution: Palaearctic, Japanese, Oriental Regions, Arctic border.
[[Bombus norvegicus occurs from the Pyrenees to the South to Arctic Circle to the North. It occurs at the Far-East of Russia to the East but to the West, it barely reaches the Atlantic coast the the West, being absent from British isles. It is generally very rare where it occurs. It inquilines mainly Bombus hypnorum]].
- Iren KONOVALOVA, e-mail: firstname.lastname@example.org