Silveira FA. A synopsis of Actenosigynes Moure, Graf & Urban, 1999 (Hymenoptera: Colletidae)—new species, possible oligolecty and biogeographic comments. Zootaxa [Internet]. 2009 Nov. 18 [cited 2025 Apr. 20];2292(1):15–24. Available from: https://mapress.com/zt/article/view/zootaxa.2292.1.2