Pazmiño-Palomino, A., and M. L. de Oliveira. “First Case of Gynandromorphism in the Orchid-Bee Eulaema Meriana (Olivier) (Hymenoptera: Apidae)”. Sociobiology, vol. 68, no. 3, Aug. 2021, p. e5778, doi:10.13102/sociobiology.v68i3.5778.