Eurhadina (Singhardina) robusta, Mahmood, Mahmood

Key to species of E. ( S.) robusta View in CoL group (males)

1. Aedeagal shaft with one pair of dorsal appendages ( Figs 88–90 View FIGURES 78–90 )............................. E. ( S.) immatura View in CoL sp. nov.

- Aedeagal shaft with both ventral and dorsal appendages ( Figs 11 View FIGURES 1–13 , 23 View FIGURES 14–25 , 36 View FIGURES 26–38 , 49 View FIGURES 39–51 , 62 View FIGURES 52–64 , 75 View FIGURES 65–77 )................................ 2

2. Dorsal appendages of aedeagal shaft not bifurcate ( Figs 11 View FIGURES 1–13 , 23 View FIGURES 14–25 , 36 View FIGURES 26–38 , 49 View FIGURES 39–51 , 62 View FIGURES 52–64 )........................................ 3

- Dorsal appendages of aedeagal shaft bifurcate ( Fig. 75 View FIGURES 65–77 )...................................................... 10

3. Ventral appendages of aedeagal shaft bifurcate ( Fig. 36 View FIGURES 26–38 ).................................... E. ( S.) dissimilis View in CoL sp. nov.

- Ventral appendages of aedeagal shaft not bifurcate ( Figs 11 View FIGURES 1–13 , 23 View FIGURES 14–25 , 49 View FIGURES 39–51 , 62 View FIGURES 52–64 ).......................................... 4

4. Dorsal appendages of aedeagal shaft with a short protrusion ( Fig. 50 View FIGURES 39–51 )............................................ 5

- Dorsal appendages of aedeagal shaft without protrusion ( Figs 11 View FIGURES 1–13 , 23 View FIGURES 14–25 , 62 View FIGURES 52–64 )......................................... 6

5. Dorsal appendages of aedeagal shaft with a short protrusion basally......................... E. ( S.) rika Dworakowska View in CoL

- Dorsal appendages of aedeagal shaft with a short protrusion near apical 1/3 ( Fig. 50 View FIGURES 39–51 )................ E. ( S.) flatilis View in CoL sp. nov.

6. Aedeagal shaft with ventral appendages circularly bent in lateral view ( Fig. 25 View FIGURES 14–25 )....................................................................................................... E. ( S.) pookiewica Dworakowska View in CoL rec. nov.

- Aedeagal shaft with ventral appendages slightly curved in lateral view ( Figs 11 View FIGURES 1–13 , 62 View FIGURES 52–64 )................................ 7

7. Aedeagal shaft with dorsal and ventral appendages subequal in width ( Fig. 62 View FIGURES 52–64 ).................................... 8

- Aedeagal shaft with dorsal appendages thinner than ventral ones ( Fig. 11 View FIGURES 1–13 )........................................ 9

8. Dorsal appendages of aedeagal shaft shorter than ventral ones............................. E. ( S.) hema Dworakowska View in CoL

- Dorsal appendages of aedeagal shaft longer than ventral ones ( Fig. 62 View FIGURES 52–64 ).......................... E. ( S.) fumosa View in CoL sp. nov.

9. Ventral appendages of aedeagal shaft sinuate..................................... E. ( S.) sikkimensis Dworakowska View in CoL

- Ventral appendages of aedeagal shaft straight ( Fig. 11 View FIGURES 1–13 )........................ E. ( S.) krispinilla Dworakowska View in CoL rec. nov.

10. Ventral appendages of aedeagal shaft bifurcate ( Fig. 77 View FIGURES 65–77 )...................................................... 11

- Ventral appendages of aedeagal shaft not bifurcate.......................................................... 12

11. Ventral appendages of aedeagal shaft shorter than dorsal ones and with short protrusion at basal 1/3 ( Fig. 77 View FIGURES 65–77 )................................................................................................. E. ( S.) furca View in CoL sp. nov.

- Ventral appendages of aedeagal shaft longer than dorsal ones and without short protrusion at basal 1/3................................................................................................... E. ( S.) robusta Mahmood View in CoL

12. Aedeagal shaft with dorsal appendages longer than inner branch of ventral appendages.......... E. ( S.) mala Dworakowska View in CoL

- Aedeagal shaft with dorsal appendages and inner branch of ventral appendages nearly equal long..................... 11

13. Ventral appendages of aedeagal shaft with two branches nearly equal wide.................... E. ( S.) rona Dworakowska View in CoL

- Ventral appendages of aedeagal shaft with inner branch thinner than outer ones................ E. ( S.) dina Dworakowska View in CoL