A list of known genera of Tenthredinoidea s.str. with synonyms and distribution data in a new systematic arrangement is provided based on cladistic analysis of known genera of the superfamily of the world. The total 422 known genera of Tenthredinoidea s.str. are placed by us in 66 tribes, 17 subfamilies and 6 families. Twenty two tribes, i.e. Nesoselandriini, Andeanini, Adiaclemini, Denticorniini, Strombocerini, Carinoscutini, Sinopoppiini, Anhoplocampini, Decanematini, Hanumatini, Adamini, Clypeini, Fernini, Neocolochelynini, Elinorini, Trichiotaxonini, Megatomostethini, Peterseniini, Senocli...
