Revision of the Chilean Brachyglutini – Part 9. The last unrevised species of Achilia Reitter, 1890 and of the other genera of Chilean Brachyglutini, with description of Estamentula stultissima gen. nov. sp. nov. and three new species of Achilia (Col

Achilia nigrita Jeannel, 1962 and the members of all the other genera of Brachyglutini from the temperate region of southern South America are revised. Ten genera are placed in synonymy: Achillidia Jeannel, 1962 = Achilia Reitter, 1890 syn. nov.; Rybaxidia Jeannel, 1962 = Achilia Reitter, 1890 syn. nov.; Achilliotes Jeannel, 1962 = Achilia Reitter, 1890 syn. nov.; Pseudachillia Jeannel, 1963 = Achilia Reitter, 1890 syn. nov.; Mallecoa Franz, 1996 = Achilia Reitter, 1890 syn. nov.; Mehuinia Franz, 1996 = Achilia Reitter, 1890 syn. nov.; Cautinia Franz, 1996 = Achilia Reitter, 1890 syn. nov.; Atacamia Franz, 1996 = Achilia Reitter, 1890 syn. nov.; Parachillia Franz, 1996 = Achilia Reitter, 1890 syn. nov., and Pseudachillidia Franz, 1996 = Achilia Reitter, 1890 syn. nov. The remaining 4 genera of Brachyglutini (Byraxorites Jeannel, 1962, Bryaxinella Jeannel, 1962, Ectopocerus Raffray, 1904 and Leptachillia Jeannel, 1962) and their constitutive members are redescribed. The new genus and species Estamentula stultissima gen. nov. sp. nov. are described, as well as the new species Achilia cipolla sp. nov., Achilia mifsudi sp. nov. and Achilia caprae sp. nov. Six new combinations are proposed: Leptachillia coquimboensis Franz, 1996 = Estamentula coquimboensis (Franz, 1996) comb. nov.; Bryaxis bituberculata Reitter, 1885 = Achilia bituberculata (Reitter, 1885) comb. nov.; Rybaxidia torticornis Jeannel, 1962 = Achilia torticornis (Jeannel, 1962) comb. nov.; Pseudachillia bicolor Jeannel, 1963 = Achilia bicolor (Jeannel, 1963) comb. nov.; Pseudachillia dolichocephala Jeannel, 1964 = Achilia dolichocephala (Jeannel, 1964) comb. nov.; Mallecoa abnormis Franz, 1996 = Achilia abnormis (Franz, 1996) comb. nov. Rybaxidia kuscheli Jeannel, 1962 is renamed Achilia kuscheliana nom. nov., consequently to its transfer to Achilia and its secondary homonymy with Achilia kuscheli Jeannel, 1962, which is a synonym of Achilia valdiviensis (Blanchard, 1851). Ten species are placed in synonymy: Cautinia brevicornis Franz, 1996 = Achilia torticornis (Jeannel, 1962) syn. nov.; Achilia andina Franz, 1996 = Achilia dolichocephala (Jeannel, 1964) syn. nov.; Achilia maiopensis Franz, 1996 = Achilia dolichocephala (Jeannel, 1964) syn. nov.; Pseudachillidia andina Franz, 1996 = Achilia dolichocephala (Jeannel, 1964) syn. nov.; Parachillia longicornis Franz, 1996 = Achilia dolichocephala (Jeannel, 1964) syn. nov.; Parachillia similis Franz, 1996 = Achilia simulans (Reitter, 1885) syn. nov.; Parachillia parva Franz, 1996 = Achilia bifossifrons (Reitter, 1883) syn. nov.; Paractium mochae Franz, 1996 = Achilia elfridae Raffray, 1904 syn. nov.; Mehuinia inexpectata Franz, 1996 = Achilia puncticeps (Reitter, 1883) syn. nov.; Atacamia paludosa Franz, 1996 = Achilia temporalis Jeannel, 1962 syn. nov. The holotypes of Byraxorites alticola Jeannel, 1962, Achilia nigrita Jeannel, 1962, Rybaxidia kuscheli Jeannel, 1962, Rybaxidia torticornis Jeannel, 1962, Bryaxinella nodicornis Jeannel, 1962, Decarthron verticicornis Reitter, 1885, and Leptachillia laevissima Jeannel, 1962 are fixed. Lectotypes are designated for Bryaxis bituberculata Reitter, 1885, Achilia brevicornis Raffray, 1904, and Pseudachillia dolichocephala Jeannel, 1964. For all species their distribution is detailed and mapped, and habitat/collecting data are summarized. A key to the genera of Brachyglutini of the temperate region of southern South America is provided.