| 31. | The flowers bear poricidal anthers and are fertilized via buzz-pollination by several " Bombus " species.
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| 32. | "Bombus frigidus " also seem to be able to transfer heat from the thorax to the abdomen.
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| 33. | Only a few species reside in the southernregions, and one those is the " Bombus morio ."
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| 34. | The " Bombus " morio make their nests in the neotropical regions on the surface of the ground.
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| 35. | In North America, pathogens are possibly having a stronger negative effect especially for the subgenus " Bombus ".
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| 36. | Interestingly, " Bombus pratorum " queens use aggressive behavior rather than pheromones to maintain dominance over the workers.
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| 37. | They are hermaphrodite and pollinated by insects ( entomophily ), especially bumblebees ( " Bombus " species ).
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| 38. | However, many other species of bees, including bumblebees, such as " Bombus terrestris ", are monandrous.
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| 39. | This is evolutionarily relevant because " Bombus vestalis " does not make its own nests or collect its own resources.
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| 40. | The second and third are named " Bombus Globus " ( bomb ball ) and " Frango Stipes " ( Breaking clubs ).
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