structural:summarization, structural:expansion
Taxonomy

The genus Bombus, the only one extant genus in the tribe Bombini, comprises over 250 species; for an overview of the differences between bumblebees and other bees and wasps, see characteristics of common wasps and bees. The genus has been divided variously into up to 49 subgenera, a degree of complexity criticised by Williams (2008). The cuckoo bumblebees Psithyrus have sometimes been treated as a separate genus but are now considered to be part of Bombus, in one or more subgenera.

Examples of Bombus species include Bombus pauloensis, Bombus dahlbomii, Bombus fervidus, Bombus lapidarius, Bombus ruderatus, and Bombus rupestris.