WILLIAMS, Paul H. et al. Widespread polytypic species or complexes of local species? Revising bumblebees of the subgenus Melanobombus world-wide (Hymenoptera, Apidae, Bombus). European Journal of Taxonomy, [S. l.], v. 719, n. 1, p. 1–120, 2020. DOI: 10.5852/ejt.2020.719.1107. Disponível em: https://ejt.sandbox.publicknowledgeproject.org/index.php/ejt/article/view/1107. Acesso em: 25 apr. 2026.