They are considered semisocial
These castes may be purely behavioral alternatives, in which case the system is considered “primitively eusocial” , and if the castes are morphologically discrete, then the system is “highly eusocial”. In some species, groups of cohabiting females may be sisters, and if there is a division of labor within the group, then they are considered semisocial. Sociality, of several different types, is believed to have evolved separately many times within the bees. The most advanced of these are eusocial colonies found among the honey bees, bumblebees, and stingless bees. Bees may be solitary or may live buy honey bees in various types of communities. Among living bee groups, the Dasypodaidae are now considered to be the most “primitive”, and sister taxon to the remainder of the bees, contrary to earlier hypotheses that the “short-tongued” bee family Colletidae was the basal group of bees; the short, wasp-like mouthparts of colletids are the result of convergent evolution, rather than indicative of a plesiomorphic condition.
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