Key to the accepted genera of Polydrepanini, based on gonopodal characters

1(2) Femorite clearly twisted (Figs 9–12, 16–20, 45–53).......................................................... 3

2(1) Femorite untwisted (Figs 3–8, 28–44, 55–57, 60–64, 67, 68, 84–87)............................................. 5

3(4) Solenophore particularly simple, two upright lobes either side of a higher and suberect solenomere, the latter devoid of a basal curve/loop (Figs 45, 46)....................................................................... Dasypharkis

4(3) Solenophore much more complex, strongly coiled; solenomere with a basal curve/loop (Figs 9–12, 17–20, 47–53)................................................................................................. Polydrepanum

5(6) Solenomere with neither a distinct basal loop nor a protecting lobe at its base...................................... 7

6(5) Solenomere with both a distinct basal loop and a protecting lobe at its base....................................... 9

7(8) Solenophore relatively small, but clearly twisted (Figs 67, 68)....................................... Xiphidiogonus

8(7) Solenophore usually large, varied (Figs 28–44, 84–87)............................................... Delarthrum

9(10) Solenophore cup-shaped, enlarged distad (Figs 55–57)................................................ Pocockina

10(9) Solenophore otherwise................................................................................ 11

11(12) Both solenophore and solenomere either suberect (Figs 3–5) or subcircular (Figs 6–8).................. Grammorhabdus

12(11) Both solenophore and solenomere strongly coiled, the former with two distomesal processes (a and b), b being unusually large and shield-like (Figs 60–64)................................................................... Telodrepanum