Ovarian activation in Melipona quadrifasciata queens triggered by mating plug stimulation (Hymenoptera, Apidae) Gabriel A.R. Melo, Maria Luisa T. Buschini and Lucio A.O. CamposApidologie, 32 4 (2001) 355-361DOI: https://doi.org/10.1051/apido:2001135