Key to males of Dilar from South Asia

1. Tergum 9 dorsally with a posteromedial projection (= dorsoprocessus) (Zhang et al. 2014b: figs 4, 8)................... 2

- Tergum 9 dorsally without posteromedial projection (= dorsoprocessus) (Figs 8, 12, 16, 20, 26, 31).................... 3

2. Gonocoxites 10 slenderly elongate in dorsal view; fused gonocoxites 11 slenderly bean-shaped in dorsal view (Zhang et al. 2014b: fig. 4)............................................................ D. geometroides Aspöck & Aspöck

- Gonocoxites 10 rather short in dorsal view; fused gonocoxites 11 with a pair of elongate spinous projections extended laterally in dorsal view (Zhang et al. 2014b: fig. 8)................................................. D. harmandi (Navás)

3. Fused gonocoxites 11 medially with a rod-shaped projection (Figs 16, 27)........................................ 4

- Fused gonocoxites 11 medially without a projection.......................................................... 5

4. Forewing nearly hyaline, without obvious dark markings (Fig. 3); gonocoxite 9 much shorter than gonocoxite 10; distal half of gonocoxite 10 slenderly elongate, with spinous apex (Figs 16, 17).............................. Dilar clavatus sp. nov.

- Forewing proximally with distinct dark brown stripes (Fig. 6); gonocoxite 9 longer than gonocoxite 10; gonocoxite 10 beanshaped, not elongate (Fig. 27)............................................................. D. nietneri Hagen

5. Gonocoxite 9 with two short projections, one distal and one subdistal (Figs 12, 13)................ D. biprojectus sp. nov.

- Gonocoxite 9 distally and subdistally with no more than one projection.......................................... 6

6. Gonocoxite 9 subdistally with a medially directed swollen lobe; fused gonocoxites 11 nearly U-shaped (Fig. 20)......................................................................................... Dilar miralobatus sp. nov.

- Gonocoxite 9 subdistally without additional lobe; fused gonocoxites 11 nearly W-shaped............................ 7

7. Gonocoxite 9 posteriorly truncate (Fig. 31); gonocoxite 10 arcuate on inner margin (Fig. 32)...... Dilar truncatus sp. nov.

- Gonocoxite 9 posteriorly forming an elongated, anteromedially directed projection (Fig. 8); gonocoxite 10 nearly right-angled on inner margin (Fig. 9).......................................................... Dilar austroindicus sp. nov.