Bombus dahlbomii, often referred to as the "flying mouse", is one of the largest bumblebees in the world. It is the only native bumblebee species in southern South America, occupying a unique ecological niche.
This bumblebee has a stocky build and is covered in dense, ginger - colored hair. Its large size and distinctive appearance make it easily recognizable. It plays a vital role in the local ecosystem as a pollinator. However, the introduction of European bumblebees, which are easier to rear in captivity, has posed a significant threat to Bombus dahlbomii. The imported bumblebees carry pathogens that have infected the native Bombus dahlbomii populations. Additionally, the larvae of Bombus dahlbomii feed exclusively on plants of the genus Asclepias, which are often plowed under or killed by herbicides in agricultural activities2. As a result, the number of Bombus dahlbomii has declined sharply, and it has been listed as an endangered species by the Chilean government.
Protecting Bombus dahlbomii requires urgent action. This includes strengthening the quarantine of introduced insects, protecting the habitats of native plants, and raising public awareness about the importance of this unique bumblebee species. Only through comprehensive conservation measures can we hope to reverse the decline of Bombus dahlbomii and safeguard the ecological balance of southern South America.
