Our long-standing investigation of bumble bees Fauna in Caucasus opened the possibility of quantitative and qualitative analysis of its population in the Caucasus. The analysis of population of bumble bees is very important for the theory and for the national economy. The author distinguishes the population of bumble bees by quantity: large [10 types (21 %)]; common [19 types (39 %)]; rare [19 types (39 %)].

The largest endemism and Subendamizm was revealed among common types of bumble bees – 47 %.