Key to species of male Nemopterella

1. Forewings with broad rounded apex, without emargination before apex (Fig. 19), hairs on thorax short, black (Fig. 15)…................................................................................. Nemopterella cedrus sp. nov.

- Forewings with acute or sub-acute apex, with emargination before apex, hairs on thorax long with different colours (Figs 14, 16)..................................................................................................2

2. Forewings slender with sub-acute apex, costal cells before pterostigma tinged brown, costal cells beyond pterostigma shaded greyish brown (Fig. 17), male antennae extending beyond pterostigma, approximately the same length as forewing (Figs 11, 17)......................................................................... Nemopterella africana (Leach)

- Forewings broad in the middle tapering towards apex, ending with sub-acute apex, costal cells before pterostigma shaded light brown, costal cells beyond pterostigma without shading (Fig. 18), male antennae extremely long, longer than forewings (Figs 13, 18)....................................................................... .. Nemopterella kabas sp. nov.