Traiguma Distant, 1908

Viraktamath, C. A. & Yeshwanth, H. M., 2023, Leafhopper subfamily Hylicinae (Hemiptera: Auchenorrhyncha: Cicadellidae) in the Indian subcontinent with description of new species, Zootaxa 5319 (4), pp. 451-500 : 475

Key to species of Traiguma Distant

(modified from Viraktamath & Webb 1991)

1. Crown narrowed in front of eyes and then expanded triangularly, without median ridge dorsally ( Figs 4A , 7G, I ); aedeagal shaft with basal angular projection on ventral surface ( Figs 25I , 26I )..................................... T. nasuta Distant

- Crown narrowed in front of eyes, of uniform width or narrowed beyond, with prominent median ridge dorsally ( Figs 8A, C, E, G ); aedeagal shaft without basal angular projection on ventral surface but with or without dorsal pair of short processes ( Figs 27F , 28G )........................................................................................... 2

2. Male with crown apex abruptly turned dorsally almost at right angle ( Figs 8A, B ); male abdominal tergite IV without median yellow patches ( Fig. 12K ); aedeagal shaft without basal processes ( Fig. 27F ); female crown with three pairs of tubercles anteriorly ( Fig. 8D )........................................................... T. nielsoni Viraktamath & Webb

- Male with crown only gradually curved dorsally ( Figs 8E, G )); male abdominal tergite IV and V with median yellow patches ( Fig. 12L ); aedeagal shaft with basal pair of lamellate processes ( Fig. 28G ); female crown without tubercles anteriorly ( Fig. 8H )................................................................................. T. verticalis Distant

Figures

FIGURES 4A–D. Traiguma nasuta Distant, lectotype female, habitus. A, dorsal view; B, lateral view; C, face, D, label data.

FIGURES 7A–J. Species of Hylicinae, habitus, dorsal and lateral view. A–B, Kalasha manikya sp. nov., holotype male; C–D, Sudra manipurensis sp. nov., holotype male; E–F, Sudra notanda male from Thailand, G–J Traiguma nasuta Distant, males from Naduvattam (GH) and Thai shola (IJ).

FIGURES 8A–H. Species of Hylicinae, habitus, dorsal and lateral view. A–D, Traiguma nielsoni Viraktamath & Webb, paratype male (AB) and female (CD); E–H, Traiguma verticalis Distant, male (EF) and female (GH).

FIGURES 12A–L. Species of Hylicinae, male and female abdomen dorsal view. A, Hatigoria zhangi sp. nov.; B, Hemisudra indica sp. nov.; C–D, Hylica paradoxa Stål, male (C) and female (D); E, Hylica scutealba Tang & Zhang, male; F, Kalasha confusa sp. nov.; G, Nacolus tuberculatus (Walker); H, Sudra manipurensis sp. nov.; I, Sudra notanda Distant, male; J, Traiguma nasuta Distant, male; K, Traiguma nielsoni Viraktamath & Webb, male; L, Traiguma verticalis Distant, male.

FIGURES 25A–I. Traiguma nasuta Distant, male genitalia. A, genital capsule, lateral view; B, subgenital plates, ventral view; C–D, styles and connective, dorsal and ventral view; E, style, lateral view; F, aedeagus, connective and part of styles, dorsal view; G, aedeagal shaft apex, posterior view; H, aedeagus, dorsal view; I, aedeagus, lateral view.

FIGURES 26A–I. Traiguma nasuta Distant, male genitalia variation, male from Thai shola.A, genital capsule lateral view; B, subgenital plates, ventral view; C–D, styles and connective dorsal view and ventral view; E–F, style, lateral and dorsal view; G, aedeagal shaft, posterior view; H aedeagus, dorsal view; I, aedeagus, lateral view.

FIGURES 27A–F. Traiguma nielsoni Viraktamath & Webb, male genitalia. A, genital capsule, lateral view; B, subgenital plates, ventral view; C, styles and connective, dorsal view; D, style and connective, lateral view; E, aedeagus, dorsal view; F, aedeagus, lateral view.

FIGURES 28A–G. Traiguma verticalis Distant, male genitalia. A, genital capsule, lateral view; B, pygofer and anal segments, lateral view; C, subgenital plates, ventral view; D, styles and connective, dorsal view; E, style, lateral view; F, aedeagus, connective and styles, dorsal view; G, aedeagus, lateral view, arrow indicates basal process on aedeagal shaft.