Velez-Ruiz, R.I. et al. 2013. Observations on the urban ecology of the Neotropical stingless bee Tetragonisca angustula (Hymenoptera: Apidae: Meliponini). Journal of Melittology. 15 (Jul. 2013), 1–8. DOI:https://doi.org/10.17161/jom.v0i15.4528.