Almeida, Rony Peterson Santos, et al. “Two New Records of Gynandromorphs in Xylocopa (Hymenoptera, Apidae s.L.)”. Papéis Avulsos De Zoologia, vol. 58, Mar. 2018, p. e20185817, https://doi.org/10.11606/1807-0205/2018.58.17.