Figure 1 from: Wang L-H, Liu S, Tang Y-J, Chen Y-P, Wu J, Li J-L (2020) Using the combined gene approach and multiple analytical methods to improve the phylogeny and classification of Bombus (Hymenoptera, Apidae) in China. ZooKeys 1007: 1-21. https://doi.org/10.3897/zookeys.1007.34105 - Wang, Liu-Hao (2021)