Crinibracon gen.n. (type species: Crinibracon malayensis sp.n. from Malaysia), C. indicus sp.n. from India, C. striatus sp.n. from New Guinea, Lyricibracon gen.n. (type species: Lyricibracon bicolorus sp.n. from Brunei), Rugosibracon gen.n. (type species: Rugosibracon maculithorax sp.n. from S. Africa), R. nigerianus sp.n. from Nigeria and Simplicibracon gen.n. (type species: Simplicibracon maculigaster sp.n. from Taiwan) are described and illustrated. A key to the Plesibracon group of genera is provided, together with specific keys for the new genera Crinibracon and Rugosibracon .