Couplet 11.
Eyes polished, bare, indistinctly faceted; occiput bordered, at least in part with fine pubescence; radial cell open
future couplets
Propodeum very short, its medial ke... ...
Synacra Foerster
Propodeum normal and with a long me... ...
Rhynchopsilus
Eyes not polished, more distinctly faceted and with fine, though inconspicuous hairs; occiput nowhere bordered with fine pubescence; radial cell closed or almost closed