Key to species of Nandigallia Viraktamath

1. Face with outer margin of gena below eyes strongly incurved (Fig. 7C); aedeagal shaft with apical pair of spine-like processes (Figs 7 KL).......................................................................................... 2

- Face with outer margin of gena below eyes weakly incurved (Viraktamath 2011: Figs 483, 485); aedeagal shaft without apical pair of spine-like processes (Viraktamath 2011: Fig. 491).................................. N. nandiensis Viraktamath

2. Style with ventral surface of inner fork smooth (Viraktamath 2011: Fig. 480)...................... N. matai Viraktamath

- Style with ventral surface of inner fork with a median row of serrations (Fig. 7M)................. N. serratistyla sp. nov.