Key to subgenera of Polynema Haliday s. l.

1 Face with a pit next to each torulus (Fig. 1); propleura abutting each other anteriorly along midline, the prosternum thus closed anteriorly (Fig. 6); digitus of male genitalia without hooks (Fig. 8), rarely with minute denticles ...................................................... .......................................................................... P. ( Doriclytus) Foerster, 1847 stat. rev.

- Face without a pit next to each torulus; propleura not abutting anteriorly, the prosternum occupying the gap between them, thus open anteriorly (Fig. 9); digitus of male genitalia with 1 or 2 conspicuous hooks (Fig. 10) ........................................................ 2

2 Propodeum evenly curved, without posterior elevation medially; petiole varying in shape, usually more or less cylindrical .....................P. ( Polynema) Haliday, 1833 s. str.

- Propodeum with posterior elevation medially; petiole notably expanded anteriorly ..... ..........................................................................P. ( Dorypolynema) Hayat & Anis, 1999