Costa, Marco A.; Del Lama, Marco A.; Melo, Gabriel A.R.; Sheppard, Walter S. (Janeiro de 2003). «Molecular phylogeny of the stingless bees (Apidae, Apinae, Meliponini) inferred from mitochondrial 16S rDNA sequences». Apidologie. 34 (1): 73–84. doi:10.1051/apido:2002051
Wittmann, D. (Janeiro de 1985). «Aerial defense of the nest by workers of the stingless bee Trigona (Tetragonisca) angustula (Latreille) (Hymenoptera: Apidae)». Behavioral Ecology and Sociobiology. 16 (2): 111–114. doi:10.1007/BF00295143