@inbook{inbook488f4b81,
title   = {The conservative egg of the genus Melipona and its consequences for speciation},
author = {Velthuis, Hayo Hans Willen and Laurino, Marilda Cortopassi and Pereboom, Zjeffrie and Imperatriz-Fonseca, Vera Lucia},
year = {2003},
publisher = {Editora UNESC},
journal   = {Apoidea neotropica: homenagem aos 90 anos de Jesus Santiago Moure}
}