PROCEEDINGS OF THE Entomological Society of Washington Vol. 76 SEPTEMBER 1974 No. 3 A GENERIC SYNOPSIS OF BRACHISTINI (HYMENOPTERA: BRACONIDAE) AND RECOGNITION OF THE NAME CHARMON HALIDAY W. R. M. Mason Biosystematics Research Institute, Research Branch, Agriculture Canada, Ottawa, Ontario, KIA 0C6 ABSTRACT — The genera of Brachistini are discussed and keyed, and all Nearctic and some Palearctic species are assigned to genera. Eiihadizon Nees is an invalid emendation of Eubazus Nees, which is a valid genus with Calypttts Haliday and Brachistes Wesmael as subgenera (new status). The application of Cahjptiis is stabilized by designation of a neotype for the type species, E. macrocephahis Nees. Eubadizon ( s. str. Auct. ) is replaced by Charmon Haliday with Provancheria Ashmead as a new synonym, and the genus is transferred to Orgilini. Allodonts Foerster is a valid genus. A New World segregate of Alioliis Say is described as Nealiohis new genus. Triaspidini and Calyptini are junior subjective synonyms of Brachistini. The braconid generic names Eubazus Nees, Eubadizon Nees, Brachistes Wesmael, Calyptus Haliday, and AUodorus Foerster have been nsed in a number of conflicting ways in recent literature (Muesebeck 1951, 1958, 1970; Tobias 1967; Martin 1956; Docavo Alberti 1960; Capek 1970; Marsh 1970; Shenefelt 1970). Since no progress toward a solution seems to be forthcoming and since the confusion involves both zoological and nomenclatural questions, I hope that a thorough airing of all aspects of the problem may produce uniformity of usage in the future. NOMENCLATORIAL PROBLEMS In 1814 Nees ab Esenbeck described the genus Eubazus with two included species, E. macrocephalus Nees and E. pallipes Nees. The name Eubazus appears only once as a centered heading on page 214. Nees gives no hint of its derivation anywhere in the paper. The fact that the name Eubazus is repeated in the index to Vol. VI on page 316 cannot be taken as proof that it was not an inadvertent error because the index may have been copied from the published