11. However, the " Bombus morio " do not have a rectal pad. 12. Introducci�n de abejorros ( Bombus ) no nativos : causas, consecuencias ecol�gicas y perspectivas. 13. Bees of the genus " Bombus " organize their cocoons in a certain manner. 14. "Bombus pensylvanicus " tends to live and nest in open farmland and fields. 15. Phylogenetic analysis has shown that the " Bombus morio ", are exclusively distinct. 16. Not much is known about the colony cycle of the " Bombus morio ." 17. The " Bombus morio " may start foraging behavior 0 5 days after emergence. 18. The most effective insect to transport pollen grains is the bumblebee " Bombus terricola ". 19. The flowers are pollinated by solitary bees and the bumblebee species " Bombus fervidus ". 20. Worker policing also occurs in the primitively eusocial bumblebees such as " Bombus terrestris ".
