Key to species of Platyretus Melichar (Males)

1. Male style with subapical lobe poorly developed, not strongly angled, with setae on apophysis (Figs.14, 15) (Sri Lanka) ......................................................................................................... P. marginatus Melichar

- Male style with subapical lobe well developed, and angled strongly, with or without setae on apophysis (Figs 7–9, 24, 25, 31, 32, 38).......................................................................................................................2

2. Male style with spines on apophysis (Figs. 8, 25).......................................................................................3

- Male style without spines on apophysis (Figs. 31, 38)................................................................................4

3. Male style with apophysis abruptly narrowed apically, (Fig. 25); apex of aedeagal shaft excavated (Fig. 23) (Java) .................................................................................. P. javanicus Viraktamath & Webb, sp. nov.

- Male style with apophysis gradually narrowed apically (Figs. 8); apex of aedeagal shaft truncate (Fig. 5) (north India, China) ................................................................ P. gangeticus Viraktamath & Webb, sp. nov.

4. Aedeagal shaft short and broad (Fig. 41); apophysis of style with setal brush (Fig. 38) (China) ................. .............................................................................................................. P. brevipenis Dai & Zhang, sp. nov.

- Aedeagal shaft longer (Fig. 34); apophysis of style without setal brush (Fig. 31) (south India) .................. ................................................................................................ P. sudindicus Viraktamath & Webb, sp. nov.