Explore Books on
cuckoo bumblebees

The humble-bee

By F. W. L. Sladen

The humble-bee

By Frederick William Lambert Sladen

Bumblebees

By D. V. Alford

Description of a new Psithyrus

By Joseph C. Bequaert

Bumble bees and cuckoo bumble bees of California (Hymenoptera, Apidae)

By Robbin W. Thorp

Bumble bees of Saskatchewan (Hymenoptera: Apidae)

By Philip S. Curry

Fortegnelse over de danske arter af slaegterne Bombus og Psithyrus

By Chr Drewsen,J. C. Schiodte

Food plants and flower visits of bumblebees (bombus, Hymenoptera, Apidae) in southern Finland

By Ilkka Teräs