Barbosa, F.M., Alves, R.M. de O., Souza, B. de A. and Carvalho, C.A.L. de 2013. Nest architecture of the stingless bee Geotrigona subterranea (Friese,1901) (Hymenoptera: Apidae: Meliponini). Biota Neotropica. 13, 1 (Mar. 2013).