Females (unknown in Vannoortia Olmi)

1. Suture between pronotum and mesothorax complete, laterally and dorsally visible (A, B). . . Gondwanadryinus Olmi

- Suture between pronotum and mesothorax incomplete, only visible on lateral regions, not visible dorsally (a, b) . . . 2
 

2. Suture between pronotum + mesothorax and metapectal-propodeal disc completely visible on dorsal and lateral regions of mesosoma (A, B) . . . Apogonatopus Olmi

- Suture between pronotum + mesothorax and metapectal-propodeal disc visible only on lateral regions of mesosoma, not visible on dorsal region (a,b) . . . MadecadryinusOlmi

Males (unknown in Gondwanadryinus Olmi and Apogonatopus Olmi)
 

1. Occiput strongly excavated (A, B), with minimum distance between eyes and occipital carina shorter than OOL (B) . . . Madecadryinus Olmi

- Occiput less excavated (a, b), with minimum distance between eyes and occipital carina approximately as long as OOL (b) . . . Vannoortia Olmi