Somavilla, A. and Fernandes, I.O. 2020. New records of the association between Polybia rejecta (Fabricius, 1798) (Hymenoptera: Vespidae) and Azteca chartifex Emery, 1896 (Hymenoptera: Formicidae) for the Caatinga and Amazon forest. Entomological Communications. 2, (Aug. 2020), ec02018. DOI:https://doi.org/10.37486/2675-1305.ec02018.