R. mauritsi sp. n. (5 holotype: Hollandia, Irian-Jaya. Indonesia) and R. nigripes sp. n. (<5 holotype: Bondokadi, Western Sumba, Indonesia) are described and illustrated. All known members (5) of the genus are keyed, and two groups-of species are proposed on the basis of leg armature, viz. rufa (rufa, nigripes) and lieftincki ( lieftincki, mauritsi). The systematic delimitation towards Erythemis is given on the basis of new characters.