Key to the species of Kibalus Rousse, van Noort & Diller, 2013 (updated from Rousse et al. 2013)

1. Propodeum without any longitudinal carina, no area defined, punctate rugulose (A); head mostly black (B) ........................................................................... K. toro Rousse, van Noort, & Diller, 2013 – Propodeum with longitudinal carina present, area superomedia complete, weakly rugose (a); head mostly yellowish-orange or white (b)................................................................................................ 2

2. Labial palpus short, not reaching fore coxa (A); mesopleuron and metapleuron densely punctate (A); frons, ocellar triangle, and vertex distinctly punctate (B); first flagellomeres as long as the second (A); head and mesosoma entirely orangish-yellow (A, B); antennae without white annulus (C)....... ................................................................................................... K. mubfs Rousse & van Noort, 2013

– Labial palpus elongated, reaching past fore coxa (a); mesopleuron and metapleuron completely smooth (a); frons, ocellar triangle, and vertex smooth (b); first flagellomeres 2× as long as the second (c); head mostly white with frons, ocellar triangle, and vertex black (a, b, c); mesosoma and propodeum with black markings (a, c); antennae with white annulus (c) ........................................... ................................................................................... K. nonnaritae Dal Pos & Di Giovanni sp. nov.