A taxonomic and phylogenetic treatment of the seven Old World genera of Siphonini is presented, based on external characters as well as on characters of the male and female genitalia most of which were hitherto unknown. Three monophyletic genus groups are postulated: A) The Peribaea-group comprising the genus Peribaea R.-D.; B) The Siphona-group comprising the genera Asiphona Mesnil, Ceranthia R.-D., and Siphona Meig. ; and C) The Actia-group comprising the genera Goniocera B. & B., Ceromya R.-D., and Actia R.-D. The Siphona-group is the sistergroup to the Actia-group, and these two groups together form the sistergroup to the Peribnea-group (cf. Fig. 28). All genera except Asiphona are defined as monophyletic based on apomorphic character states. A key to the genera is given. The male and female genitalia of several genera are illustrated for the first time.