Domain: Eukarya 
Eukaryotes: Have true nucleus and membrane organelles
Kingdom: Animalia 
Animals: multicellular, heterotrophic, and motile
Phylum: Arthropoda  
Anthropods: Chitinous exoskeleton, segmented body
Class: Insecta 
 Insects: Body consists of body, thorax and abdomen, and six legs
Order: Hymenoptera
Sawflies, Parasitic wasps, Ants, Wasps, and Bees
Family: Apidae
Only Long-tongued bees
Genus: Bombus
All Bumble Bees
Species: Bombus affinis
The particular species of Bumblebee. Affinis from the word affinity, meaning a similarity in structure, implying a common origin; family resemblance.

Broad Phylogenetic tree of Bombus affinis

Phylogenetic Tree of species of bumble bees
 based on molecular data of gene fragments
 (16S, opsin, ArgK, EF-1α, and PEPCK) (Cameron et al.) 

Go to Habitat and Geography of Bombus affinis