WILLE, A.; OROZCO, E. The life cycle and behavior of the social bee <i>Lasioglossum (Dialictus) umbripenne</i> (Hymenoptera: Halictidae). Revista de Biología Tropical, [S. l.], v. 17, n. 2, p. 199–245, 1969. DOI: 10.15517/rev.biol.trop.v17i2.28103. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/28103. Acesso em: 7 jul. 2024.