Apis mellifera capensis, the Cape honeybee is a sub-species of the Western honeybee. Cape worker bees are able to lay diploid, female eggs without mating by means of thelytoky, whereas workers of other honeybee subspecies are able to lay only haploid, male eggs.

Source

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Parasitic Cape honeybee workers, Apis mellifera capensis, evade policing Martin, S.J. and Beekman, M. and Wossler, T.C. and Ratnieks, F.L.W. (2002) Nature, 415 (6868). pp. 163-165 accessed Jan 2006

Bees | Beekeeping

Apis mellifera capensis