Apoidea Bees evolved from sphecid wasps. Sphecids, like many wasps, will feed their young insect prey as a protein source. Bees have given up animal prey as a food source. Instead, they feed their young pollen and nectar, which the adults collect, pollinating plants in the process. The bees and sphecid wasps make up the superfamily Apoidea.
All bees also have the basal tarsal segment wider than the following segments.
There is no new name for the monophyletic clade that comprises Apini, Euglossini, Meliponini and Bombini. See Roig-Alsina and Michener 1993. Apidae Bombus is in the family Apidae, in the subfamily Bombinae. Most females of the family Apidae have a corbicula. This is a bare region on the outer surface of the hind tibiae that is surrounded by long hairs.