Perilampinae are newly delimited and their world genera keyed. Two of the six genera are monotypic: Burksilampus n.gen., proposed for the American Chrysolampus anobii Burks, and Steffanolampus Peck. Two other genera are revised: Krombeinius n.gen. with two Oriental species (including eumenidarum n.sp. and Euperilampus Walker with three American and seven Old World species of which two are described: sinensis n.sp. (from China) and spina n.sp. (from N. Borneo). Three names are synonymized under E. scutellatus (Girault). With 13 figures.