WILLE, A. A comparative study of the pollen press and nearby structures in the bees of the family Apidae. Revista de Biología Tropical, [S. l.], v. 27, n. 2, p. 217–221, 1979. Disponível em: https://revistas.ucr.ac.cr/index.php/rbt/article/view/25651. Acesso em: 8 may. 2024.