CHEN, X.; XU, H. A key to species of the genus Hylaeus (Hymenoptera: Colletidae) from mainland of China with descriptions of new species and new records. Zootaxa, Auckland, New Zealand, v. 1974, n. 1, p. 31–50, 2009. DOI: 10.11646/zootaxa.1974.1.3. Disponível em: https://mapress.com/zt/article/view/zootaxa.1974.1.3. Acesso em: 3 apr. 2025.