Yelahanka, Viraktamath & Webb & Yeshwanth, 2021

Viraktamath, C. A., Webb, M. D. & Yeshwanth, H. M., 2021, Leafhopper subfamily Ledrinae of the Indian subcontinent: 1. Description of Yelahanka gen. nov. (Hemiptera: Cicadellidae) with seven new species and new combinations, Zootaxa 4915 (4), pp. 451-480 : 453-454

Key to species of Yelahanka gen. nov.

1. Mesonotum with three raised crest-like projections ( Figs 1 B, D )............................. Y. canaraica sp. nov.

- Mesonotum smooth, without crest-like projections ( Figs 1 F, H, J )........................................... 2

2. Pronotum with grey or silvery white borders on anterior and lateral margins ( Figs 3 F–J, 4 G–H).................... 3

- Pronotum without grey or silvery white borders but may be laterally black or dark brown ( Figs 1 D–J, 3 C–D)......... 4

3. Hind tibia setal row PD with two macrosetae ( Fig. 7 B ); aedeagal shaft with one long and one short subapical process ( Figs 11 F–G).................................................................... Y. granulosa (Distant) (part)

- Hind tibia setal row PD with four macrosetae ( Fig. 7 H ); aedeagal shaft without subapical processes ( Figs 15 G–H)....................................................................................... Y. punctata (Walker)

4. Crown and pronotum with small red punctations ( Figs 1 E–F); aedeagal shaft sinuate near apex, with distal lateral angular projections ( Figs 12 F–H)........................................................... Y. kodaiensis sp. nov.

- Crown and pronotum without red punctations ( Figs 5 A–E); aedeagal shaft not sinuate near apex but curved smoothly, with pair of slender subapical to apical processes ( Figs 16 H , 17 I )............................................... 5

5. Male pygofer process branched at apex ( Figs 14 C , 18 A–B)................................................ 6

- Male pygofer process not branched at apex ( Fig. 11 A ), at most with a small projection near base................... 7

6. Male pygofer apical process 3-branched ( Fig. 18 A–B)....................................... Y. trifida sp. nov.

- Male pygofer apical process multi-branched ( Fig. 14 C )..................................... Y. nepalica sp. nov.

7. Aedeagus with subapical processes unequal, longer process about half as long as shaft ( Figs 11 G , 13 G–I)............ 8

- Aedeagus with subapical processes equal, each process at most ¼ as long as shaft ( Figs 16 G–H, 17 H–I)............. 9

8. Style apical process distally narrowed and pointed ( Fig. 11 C ); longer process of aedeagal shaft with apex broadened and rounded, shorter process slender and of uniform width ( Figs 11 F–G).................... Y. granulosa (Distant) (part)

- Style apical process distally broadened and truncate ( Fig. 13 C ); longer process of aedeagal shaft with apex narrowed and pointed, shorter process broad at base ( Figs 13 G–I)........................................ Y. montana sp. nov.

9. Aedeagal shaft processes slender and curved ( Figs 17 H–I)................................ Y. sikkimensis sp. nov.

- Aedeagal shaft processes stouter and straighter, not curved ( Figs 16 G–H)................... Y. shillongensis sp. nov.

Figures

FIGURES 1 A–J. Species habitus of Yelahanka gen. nov. A–D, Y. canaraica sp. nov.: A–B, male, dorsal and lateral views; C–D, female, dorsal and lateral views. E–F, Y. kodaiensis sp. nov., male, dorsal and lateral views. G–H, Y. montana sp. nov., male, dorsal and lateral views. I–J, Y. nepalica sp. nov., male, dorsal and lateral views.

FIGURES 3 A–H. Yelahanka granulosa (Distant), males and females from different localities showing colour variation: A–B, E–F, males from Bengaluru; C–D, male from Mudigere; G–H, female from Coimbatore; I–J, male from Coimbatore.

FIGURES 5 A–G. Species habitus of Yelahanka gen. nov. A–B, Y. shillongensis sp. nov., male dorsal and lateral views. C–E, Y. sikkimensis sp. nov., male (C) dorsal view; D–F, female dorsal and lateral views. F–G, male Y. trifida sp. nov., dorsal and lateral views.

FIGURES 7 A–H. Species of Yelahanka gen. nov. leg chaetotaxy.A–E, Y. granulosa (Distant):A. Pro femur, anterior view; B, meta femur and tibia, anterior view; C, distal macrosetae on meta femur; D, chaetotaxy of distal part of meta tibia, ventral view; E, chaetotaxy of plantar surface of meta basitarsomere. F–H, Y. punctata (Walker): F, chaetotaxy of distal part of meta tibia, ventral view; G, chaetotaxy of plantar surface of meta basitarsomere; H, chaetotaxy of distal part of meta tibia, ventral view.

FIGURES 11 A–G. Yelahanka granulosa (Distant), male genitalia. A, genital capsule, lateral view; B, subgenital plate, ventral view; C, style, lateral view; D–E, connective, dorsal and lateral views; F, aedeagus, lateral view; G, aedeagal shaft, anterior view.

FIGURES 12 A–H. Yelahanka kodaiensis sp. nov., male genitalia. A, genital capsule, lateral view; B, subgenital plate, ventral view; C, Style, lateral view; D–E, connective, dorsal and lateral views; F, aedeagus, lateral view, G, aedeagus, posterior view; H, aedeagus, anterior view.

FIGURES 13 A–I. Yelahanka montana sp. nov., male genitalia. A, genital capsule, lateral view; B, anal segments, lateral view; C, style, lateral view; D–E, connective, dorsal and lateral view; F,aedeagus, lateral view, holotype; G, aedeagal shaft apex, anterior view, holotype; H, aedeagus, lateral view, paratype; I, aedeagus shaft apex, anterior view.

FIGURES 14 A–I. Yelahanka nepalica sp. nov., male genitalia. A, pygofer and anal collar, lateral view; B, anal segments, lateral view; C, pygofer ventral process, posterior view; D, subgenital plate, ventral view; E, style, lateral view; F–G, connective, dorsal and lateral view; H, aedeagus, lateral view, note the broken tip; I, aedeagal shaft, anterior view.

FIGURES 15 A–H. Yelahanka punctata (Walker), male genitalia. A, genital capsule, lateral view; B, anal segments, lateral view; C, subgenital plate, ventral view; D–E, connective, dorsal and lateral views; F, style, lateral view; G, aedeagus, lateral view; H, aedeagus, posterior view.

FIGURES 16 A–H. Yelahanka shillongensis sp. nov. male genitalia. A, genital capsule, lateral view; B, anal segments, lateral view; C, pygofer process, mesal view; D–E, connective, dorsal and lateral views; F, style, lateral view; G, aedeagus, lateral view; H, aedeagal shaft apex, anterior view.

FIGURES 17 A–I. Yelahanka sikkimensis sp. nov., male genitalia. A, pygofer, lateral view; B, anal segments, lateral view; C, pygofer process, mesal view; D. subgenital plate, ventral view; E–F, connective, dorsal and lateral views; G, style, lateral view; H, aedeagus, lateral view; I, aedeagal shaft apex, anterior view.

FIGURES 18 A–H. Yelahanka trifida sp. nov. male genitalia.A, genital capsule, lateral view; B, pygofer process, posterolateral view; C, style, lateral view; D–E, connective, dorsal and lateral views; F, aedeagus, lateral view; G–H, aedeagus, posterior and anterior views.