Template:Ramos, 2013
- Ramos, K.S. 2013. The bee genus Arhysosage Brèthes (Apidae: Andreninae: Calliopsini): new species, taxonomic notes and new distribution records from Brazil. Journal of Natural History 47(43-44): 2735–2747. DOI: 10.1080/00222933.2013.791887