SILVEIRA, F. A. A synopsis of Actenosigynes Moure, Graf & Urban, 1999 (Hymenoptera: Colletidae)—new species, possible oligolecty and biogeographic comments. Zootaxa, Auckland, New Zealand, v. 2292, n. 1, p. 15–24, 2009. DOI: 10.11646/zootaxa.2292.1.2. Disponível em: https://mapress.com/zt/article/view/zootaxa.2292.1.2. Acesso em: 20 apr. 2025.