The generic key below is from Townes and Townes' 1960 revision; it treats the sexes separately, males running to couplet 4 and females to couplet 5. Species keys for Rhyssa, Rhyssella and Megarhyssa are on the respective genus pages.
Top genera by species richness.
Authors ranked by number of valid species described.
For each genus, species originally described there (blue) vs. transferred in from another genus (orange). Percentage shown inside orange bar when space allows.
Valid species vs. synonyms per genus. Color indicates synonymy ratio (blue = low, red = high). Hover a point for details.