A. Bertsch, „A phylogenetic framework for the bumblebee species of the subgenus Bombus sensu stricto based on mitochondrial DNA markers, with a short description of the neglected taxon B. minshanicola Bischoff, 1936 n. status. (Hymenoptera: Apidae: Bombus)“., contrib.entomol., Bd. 60, Nr. 2, S. 471–487, Dez. 2010.