The R. dianneae species group of the genus Rosenbergia is described and enlarged with the additional descriptions of R. cheesmanae sp. nov. and R. valentinae eki ssp. nov. Adult genitalia are depicted. The R. weiskei species group is analysed and Rosenbergia valentinae Rigout, 2004 stat. nov. is raised to species level and no longer considered a subspecies of R. dianneae Allard, 1990. The rediscovery of the holotype of Rosenbergia humeralis Gilmour, 1966 allows for the description of the male of this species. After extensive research, the holotype of R. dianneae is considered lost and a neotype has been designated., Acknowledgments. We want to warmly thank Dr. Jean-Roch Houllier, Paris, for his kindness in waiting to see this paper published. Dr. Harold Labrique, Cédric Audibert and David Besson, Musée des Confluences, Centre de conservation et d'étude des collections, Lyon, France, for their valuable and professional help in providing us with detailed pictures of Rosenbergia drawer in the Lepesme collection and the labels of the R. humeralis holotype. Without them part of this work would not have been possible. Mr. Arnaud, France, Mr. Gerhard Beinhunder and Mr. Alfred Punchner, Austria; Prof. Renzo Perissinotto, Nelson Mandela University, South Africa, for their assistance in locating Vincent Allard's collection. Special thanks to Dr. Henrik Wallin, Swedish Museum of Natural History, Stockholm, Sweden; Thierry Porion, France, Jacques Rigout, Canada and many other researchers and collectors who kindly helped us to trace important specimens useful for our research. Last but not least, thanks to the most generous man that we have had the good fortune to know through entomology, Mr. Bhaskara from Malang, Indonesia, and his wife, with the great wish to continue a belief in the kindness of human beings. Thanks to Dr. Francesco Vitali, National Museum of Natural History, Luxembourg, for editing this manuscript and anonymous reviewers for suggestions and corrections., {"references":["Allard, V. (1990) Diagnose d'un nouveau Rosenbergia Ritsema (Col., Cerambycidae, Lamiinae, Batocerini). Bulletin de la Société Sciences Nat, 66: 20","Breuning, S. (1980) Noveaux Lamiinae de NouvelleGuinée. Bulletin de la Société entomologique de France. 85(5-6): 132-133.","Casadio, C.A. (2006) Remarks about the holotype of Rosenbergia straussi (Gestro, 1876) (Coleoptera, Cerambycidae, Lamiinae, Batocerini). Lambillionea, 106: 29-34.","Gardner J.A. (1989) Revision of the Genera of the Tribe Stigmoderini (Coleoptera: Buprestidae) with a Discussion of Phylogenetic Relationships. Invertr. Taxon, 3: 291-361.","Gilmour, E.F. (1959) Revision of the genus Rosenbergia Ritsema. Idea. Journal of the Entomological Society of Indonesia, Vol. 12, Part 2, 3 & 4, 15: 40-51.","Gilmour, E.F. (1960) Revision of the genus Rosenbergia Ritsema. Idea. Journal of the Entomological Society of Indonesia, 13 (1-2): 1-34.","Gilmour, E.F. (1963) Revision of the Batocerini. Genera Doesburgia, Aprionella, Microcriodes, Pseudapriona, Parapriona and Anapriona (Coleoptera, Cerambycidae, Lamiinae). Entomologische Abhandlungen aus dem Staatlichen Museum für Tierkunde in Dresden, 29 (7): 475-491.","Gilmour, E.F. (1966) Revision of the genus Rosenbergia Ritsema. Reichenbachia, Bd. 6 (30): 245-261.","Grasso, M. & Casadio C.A. (2020) A new species of Apriona Chevrolat 1852 (Coleoptera: Cerambycidae: Lamiinae) from Western New Guinea. Holotipus rivista di zoologia sistematica e tassonomia, I (2): 37-47.","Holmen, M. (1987) The aquatic Adephaga (Coleoptera) of Fennoscadia and Denmark. I. Gyrinidae, Halipslisae and Noteridae. Fauna Entomologica Scandinavica, vol. 20, E. J. Brill, Copenhagen, 169 pp.","ICZN (1999) International Code of Zoological Nomenclature (4th Edition). The Natural History Museum, London, 306 pp.","Mayr, E. (1979) Animal Species and Evolution. Belknap, Cambridge, 797 pp","Rigout, J. (1982) Les Coléoptères du Monde. The Beetles of the world Vol. 2. Batocerini. Sciences Nat, Compiegne, 128pp.","Rigout, J. (1994) Vincent Allard (18 décembre 1921 - 22 janvier 1994). Bulletin de la Société Sciences Nat, 81: 3-5.","Rigout, J. (2004) Les Coléopterès du Monde. The Beetles of the world. 2 suppl. 1: Rosenbergia, new or little known Rosenbergia. Hillside Books, Canterbury, 12 pp.","Ritsema, C. (1881) On a new genus of longicorn Coleoptera belonging to the group of the Batoceridae. Notes from Leyden Museum, Note V, Vol. III: 11-14.","Wallin, H. & Nylander, U. (2006) Description of the genitalia characteristics of species within the Rosenbergia xenium Gilmour 1959 complex and related species. A taxonomic revision. Part 1 (Coleoptera Cerambycidae). Lambillionea CVI (3), Supplement I: 1-20.","Wallin, H. & Nylander, U. (2007) Description of the genitalia characteristics of species within the Rosenbergia weiskei Heller 1902 complex and related species, including the description of a new species of Rosenbergia. Lambillionea CVII (1), Supplement I: 1-29."]}