Carpenter, James M, Sergio Ricardo Andena, and Christopher Starr. 2019. “A New Species of the Social Wasp Genus Chartergellus Bequaert from Trinidad, (Hymenoptera: Vespidae, Polistinae, Epiponini)”. Sociobiology 66 (1). Feira de Santana, Brazil:161-65. https://doi.org/10.13102/sociobiology.v66i1.3715.