Afrotropical Gonatopus Group 11: key to the ♀♀
1. Propodeal declivity with two incomplete longitudinal keels; metapectal-propodeal disc with or without tracks of two median longitudinal keels.............................................. G. costalis Olmi, Copeland & van Noort, sp. nov.
- Propodeal declivity with two complete longitudinal keels; metapectal-propodeal disc with two complete median subparallel longitudinal keels..................................................................................... 2
2. Notauli complete, posteriorly separated; metapectal-propodeal disc reticulate rugose, with two median longitudinal keels..................................................................................... G. obscurus (Ceballos)
- Notauli incomplete, almost reaching posterior margin of mesoscutum; metapectal-propodeal disc not reticulate rugose, with numerous parallel transverse keels and two median longitudinal keels, in addition to two longitudinal keels situated on lateral regions............................................................................ G. bisulcatus (Benoit)