Key to the species of male Zophiuma
1 Postero-ventral margin of male anal segment barely produced (Fig. 4)........................... Z. torricelli sp. nov.
- Postero-ventral margin of male anal segment broadly produced in a lobe......................................... 2
2 Lobe regularly and broadly rounded (Fig. 3)........................................................ Z. pupillata - Lobe with a clear cut-out in middle....................................................................... 3
3 Anterior part of lobe clearly smaller and not as long as posterior part (Fig. 2)........................ Z. gitauae sp. nov.
- Anterior part of lobe slightly smaller but as long as posterior part (Fig. 1)................................ Z. butawengi