Key to species of Amasha Medler

1. Vertex truncate (Fig. 6); sutural angle of tegmen acute .................................................................... A. abrupta Medler

- Vertex produced; sutural angle of tegmen right angled ............................................................................................... 2

2. Cu1 merged with branch of vein M .................................................................................................. A. decepta Medler

- Cu1 not merged, free to sutural margin (Figs. 10, 18)................................................................................................. 3

3. Tegmen margin red, postclaval sutural margin with 10–13 apical cells (Fig. 10); male phallobase with a bifurcated process reaching middle of phallobase (Figs. 12–13) ........................................................................ A. inepta Medler

- Tegmen margin without red, postclaval sutural margin with 14–17 apical cells (Fig. 18); male phallobase with a long simple process reaching base of phallobase, not branched (Figs. 20–21) .......................................... A. haina sp. nov.