21. It was discovered in 2012, and confidently placed in the subgenus " Bombus ". 22. This provided evidence that the " Bombus morio " have the ecto-endoperitrophic circulation. 23. Like other bumblebees, " Bombus pratorum " lives in colonies with queen and worker castes. 24. Anthophoraspp . being dominant in the southern population and the larger-bodied Bombus spp . in the north. 25. As a cuckoo bumblebee, " Bombus sylvestris " lays its eggs in another bumblebee s nest. 26. Queens have the largest at 3.4 4.1 mm . Female " Bombus bimaculatus" 27. It is similar in color and range to the American bumblebee ( " Bombus pensylvanicus " ). 28. Some forms are similar to " Bombus wilmattae ", which may actually be the same species. 29. Bombus vandykei is a species of bumblebee native to California, Oregon, Washington, and southern British Columbia.30. "Bombus cerdanyensis " was described from Late Miocene lacustrine beds of La Cerdanya, Spain in 2014.
