Key to species of the genus Homa Distant (males) (excluding H. rubrodorsata)

1. Anteclypeus strongly swollen and more broadened in male than in female (Figs 8, 20)............................... 2

- Anteclypeus somewhat swollen but not broadened in male..................................................... 3

2. Basal setae of subgenital plate fully truncated apicad (Fig. 72); 1T apodemes developed, divergent posteriorly (Fig. 35).......................................................................... H. algulata Xu, Dietrich & Qin sp. nov.

- Basal setae of subgenital plate not truncated; 1T apodemes parallel posteriorly (Fig. 26).................................................................................................. H. osificata Xu, Dietrich & Qin sp. nov.

3. Aedeagus shaft without appendage (Figs 58, 59).............................. H. oretinia Xu, Dietrich & Qin sp. nov.

- Aedeagus shaft with one or more appendage(s).............................................................. 4

4. Aedeagus with pair of symmetrical appendages (Figs 65, 66)..................... H. asilata Xu, Dietrich & Qin sp. nov.

- Aedeagus with asymmetrical appendages.................................................................. 5

5. Aedeagus shaft fairly broad in lateral view (Fig. 42)................................ H. haematoptilus (Kirkaldy, 1906)

- Aedeagus shaft slim in lateral view........................................................................ 6

6. Subgenital plate with lobe bearing basal setal group acutely produced (Fig. 84).......... Homa sinensis Qin & Zhang, 2011

- Subgenital plate with lobe bearing basal setal group right angled....................... Homa katoi Dworakowska, 1984