Eurhadina (Singhardina) robusta, Mahmood, Mahmood

Zhou, Juan, Zhang, Yalin & Huang, Min, 2021, First records of the Oriental Eurhadina (Singhardina) robusta species group from China with descriptions of five new species (Hemiptera: Cicadellidae: Typhlocybinae), Zootaxa 5061 (3), pp. 510-522 : 511

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

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

- Aedeagal shaft with both ventral and dorsal appendages ( Figs 11 , 23 , 36 , 49 , 62 , 75 )................................ 2

2. Dorsal appendages of aedeagal shaft not bifurcate ( Figs 11 , 23 , 36 , 49 , 62 )........................................ 3

- Dorsal appendages of aedeagal shaft bifurcate ( Fig. 75 )...................................................... 10

3. Ventral appendages of aedeagal shaft bifurcate ( Fig. 36 ).................................... E. (S.) dissimilis sp. nov.

- Ventral appendages of aedeagal shaft not bifurcate ( Figs 11 , 23 , 49 , 62 ).......................................... 4

4. Dorsal appendages of aedeagal shaft with a short protrusion ( Fig. 50 )............................................ 5

- Dorsal appendages of aedeagal shaft without protrusion ( Figs 11 , 23 , 62 )......................................... 6

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

- Dorsal appendages of aedeagal shaft with a short protrusion near apical 1/3 ( Fig. 50 )................ E. (S.) flatilis sp. nov.

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

- Aedeagal shaft with ventral appendages slightly curved in lateral view ( Figs 11 , 62 )................................ 7

7. Aedeagal shaft with dorsal and ventral appendages subequal in width ( Fig. 62 ).................................... 8

- Aedeagal shaft with dorsal appendages thinner than ventral ones ( Fig. 11 )........................................ 9

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

- Dorsal appendages of aedeagal shaft longer than ventral ones ( Fig. 62 ).......................... E. (S.) fumosa sp. nov.

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

- Ventral appendages of aedeagal shaft straight ( Fig. 11 )........................ E. (S.) krispinilla Dworakowska rec. nov.

10. Ventral appendages of aedeagal shaft bifurcate ( Fig. 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 )................................................................................................. E. (S.) furca sp. nov.

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

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

- 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

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

Figures

FIGURES 78–90. Eurhadina (Singhardina) immatura sp. nov. 78, habitus, dorsal view. 79, habitus, lateral view. 80, head and thorax, dorsal view. 81, face. 82, male pygofer side, lateral view. 83, hind part of pygofer, lateral view. 84, subgenital plate, connective, paramere and sternite IX, dorsal view. 85, apex of subgenital plate, dorsal view. 86, connective, dorsal view. 87, paramere, dorsal view. 88, aedeagus, posterior view. 89, apex of aedeagal shaft, dorsal view. 90, aedeagus, lateral view.

FIGURES 1–13. Eurhadina (Singhardina) krispinilla rec. nov. 1, habitus, dorsal view. 2, habitus, lateral view. 3, head and thorax, dorsal view. 4, face. 5, male pygofer side, lateral view. 6, hind part of pygofer, lateral view. 7, subgenital plate, connective, paramere and sternite IX, dorsal view. 8, apex of subgenital plate, dorsal view. 9, connective, dorsal view. 10, paramere, dorsal view. 11, aedeagus, posterior view. 12, apex of aedeagal shaft, dorsal view. 13, aedeagus, lateral view.

FIGURES 14–25. Eurhadina (Singhardina) pookiewica rec. nov. 14, habitus, dorsal view. 15, habitus, lateral view. 16, head and thorax, dorsal view. 17, face. 18, male pygofer side, lateral view. 19, hind part of pygofer, lateral view. 20, subgenital plate, connective and paramere, dorsal view. 21, apex of subgenital plate, dorsal view. 22, connective, dorsal view. 23, aedeagus, posterior view. 24, apex of aedeagal shaft, dorsal view. 25, aedeagus, lateral view.

FIGURES 26–38. Eurhadina (Singhardina) dissimilis sp. nov. 26, habitus, dorsal view. 27, habitus, lateral view. 28, head and thorax, dorsal view. 29, face. 30, male pygofer side, lateral view. 31, hind part of pygofer, lateral view. 32, subgenital plate, connective, paramere and sternite IX, dorsal view. 33, apex of subgenital plate, dorsal view. 34, connective, dorsal view. 35, paramere, dorsal view. 36, aedeagus, posterior view. 37, apex of aedeagal shaft, dorsal view. 38, aedeagus, lateral view.

FIGURES 39–51. Eurhadina (Singhardina) flatilis sp. nov. 39, habitus, dorsal view. 40, habitus, lateral view. 41, head and thorax, dorsal view. 42, face. 43, male pygofer side, lateral view. 44, hind part of pygofer, lateral view. 45, paramere, connective, subgenital plate and sternite IX, dorsal view. 46, apex of subgenital plate, dorsal view. 47, connective, dorsal view. 48, paramere, dorsal view. 49, aedeagus, posterior view. 50, apex of aedeagal shaft, dorsal view. 51, aedeagus, lateral view.

FIGURES 52–64. Eurhadina (Singhardina) fumosa sp. nov. 52, habitus, dorsal view. 53, habitus, lateral view. 54, head and thorax, dorsal view. 55, face. 56, male pygofer side, lateral view. 57, hind part of pygofer, lateral view. 58, paramere, connective, subgenital plate and sternite IX, dorsal view. 59, apex of subgenital plate, dorsal view. 60, connective, dorsal view. 61, paramere, dorsal view. 62, aedeagus, posterior view. 63, apex of aedeagal shaft, dorsal view. 64, aedeagus, lateral view.

FIGURES 65–77. Eurhadina (Singhardina) furca sp. nov. 65, habitus, dorsal view. 66, habitus, lateral view. 67, head and thorax, dorsal view. 68, face. 69, male pygofer side, lateral view. 70, hind part of pygofer, lateral view. 71, paramere, connective and subgenital plate, dorsal view. 72, apex of subgenital plate, dorsal view. 73, connective, dorsal view. 74, paramere, dorsal view. 75, aedeagus, posterior view. 76, apex of aedeagal shaft, dorsal view. 77, aedeagus, lateral view.