Eurymelinae

VIRAKTAMATH, C. A. & YESHWANTH, H. M., 2024, Arboreal eurymeline leafhoppers (Hemiptera: Cicadellidae: Eurymelinae) of the Indian subcontinent with description of new genera and eight new species, Zootaxa 5462 (1), pp. 1-125 : 10-11

Key to tribes and genera of Eurymelinae (excluding Macropsini ) known from the Indian subcontinent

1. Forewing with third apical cell pedunculate ( Fig. 2F ); male style forked distally with ventral surface of inner fork serrate ( Fig. 1F )…. …….……tribe Balocerini ........................................................ genus Balocha Distant

- Forewing with third apical cell not pedunculate ( Fig. 59B ); male style distally not forked ( Fig. 8K ).................... 2

2. Crown and upper part of face shagreen; apophysis of male style with angular projection in basal 0.33 ( Fig. 52J )……………… ..................................................….tribe Megipocerini ......................................................... 3

- Crown and upper part of face striate (except in Idioscopus bimculatus species group); apophysis of male style without such a projection ( Fig. 8K ) (except in Idioscopus nitidulus species group).................tribe Idiocerini ...........................7

3. Face with lateral frontal sutures extending beyond antennal base and reaching or nearly reaching ocelli ( Fig.8G )...........4

- Face with lateral frontal sutures not extending beyond bases of anternnae ( Figs 52 CG).................. Busonia Distant

4. Forewing with cross veins before apical cells ( Fig. 59B )...................................................... 5

- Forewing without cross veins before apical cells ( Fig. 57E ).....................................................6

5. Forewing with yellow and brown patches on subcostal area and with three closed subapical cells ( Fig. 55A ).. Chunra Distant

- Forewing without yellow and brown patches on subcostal area and with two closed subapical cells ( Fig. 56F )........................................................................................... Ceylonoscopus Viraktamath

6. Forewing clavus with one vein ( Fig. 57E ); male pygofer and anal collar without processes ( Fig. 57F ).................................................................................................... Lankacerus Viraktamath

- Forewing clavus with two veins ( Fig. 59F ); male pygofer and anal collar with processes ( Fig. 58J )...................................................................................................... .. Neoscopus Viraktamath

7. Pronotum transversely striate............................................................................ 8

- Pronotum shagreen, not transversely striate............................................................... 10

8. Clypellus parallel-sided ( Fig. 37C )................................................... Nilgiriscopus Viraktamath

- Clypellus either narrowed ( Fig. 42C ) or widened distally ( Fig. 9C ).............................................. 9

9. Clypellus narrowed apically ( Fig. 42C ); aedeagus with poorly developed dorsal apodeme; pygofer without ventral process..................................................................................... Tasnimocerus Ghauri

- Clypellus broad apically ( Fig. 29C ); aedeagus with well-developed dorsal apodeme ( Fig. 29I ); pygofer with ventral process ( Fig. 29F ).......................................................................... Jogocerus Viraktamath

10. Metafemur distal macrosetae 2+0....................................................................... 11

- Metafemur distal macrosetae 2+1....................................................................... 12

11. Male style with two long stout setae at apex ( Fig. 36K ).................................. Metidiocerus Ossiannilsson

- Male style with one long stout seta at apex ( Fig. 17H )............................................ Idiocerus Lewis

12. Style long and curved, apophysis often serrated ventrally, with row of long setae on dorsal margin or short row of long setae near apex ( Figs 8K , 24G ).............................................................................. 13

- Style short, neither curved, nor serrated ventrally, with short row of long setae at mid length and near apex ( Fig. 14J )...................................................................................... Burmascopus Viraktamath

13. Ventral margin of male pygofer with triangular lobe near base ( Fig. 15F ); aedeagal shaft pustulate............................................................................................. Busoniomimus Maldonado-Capriles

- Ventral margin of male pygofer without triangular lobe ( Fig. 20J ); aedeagal shaft not pustulate........................14

14. Aedeagus with one or two pairs of fairly long apical or subapical processes directed basad ( Figs 20L , 22G )............. 15

- Aedeagus without paired processes ( Fig. 8L ), if present, very short ( Fig.9G ) or directed apicad ( Fig. 11H )...............17

15. Aedeagus with slender shaft, apex hooked and with one pair of subapical processes at least 0.66 length of shaft ( Figs 38 EJN)....................................................................... Paraidioscopus Maldonado-Capriles

- Aedeagal shaft stouter, either with one pair of short processes (at most 0.33 as long as shaft) or two pairs of longer processes but of unequal length, apex not hooked ( Figs 19F , 20L )...................................................... 16

16. Style with apex of apophysis dorsally curved, ventral surface not serrate ( Fig. 30J ).................... Keralus gen. nov.

- Style with apex of apophysis not dorsally curved, ventral surface serrate ( Fig. 25G ) or with one ventral tooth at midlength 24G)............................................................................ .. Idioscopus Baker (part)

17. Male pygofer with ventral process ( Fig. 8J , 34H )........................................................... 18

- Male pygofer without ventral process ( Figs 28F , 32F )....................................................... 19

18. Aedeagus with preatrium long, often longer than shaft, dorsal apodeme poorly developed ( Figs 8L , 9G ). Amritodus Anufriev

- Aedeagus with preatrium short or poorly developed, dorsal apodeme well-developed ( Fig. 31H )........................................................................................................ Matangia gen. nov. (part)

19. Aedeagus short and robust in lateral view, shaft laterally sulcate ( Fig. 28I )............................ Jogina gen. nov.

- Aedeagus long, slender, shaft not sulcate laterally ( Fig. 41J )...................................................20

20. Forewing with three subapical closed cells ( Fig. 59H ); aedeagus with preatrium poorly developed ( Figs 31H , 40K )...... 21

- Forewing with two subapical closed cells ( Fig. 59B ); aedeagus with preatrium well-developed ( Fig. 44H )...............22

21. Style with preapical lobe well-developed, apophysis with lateral longitudinal lamellate extension ( Fig. 40J )....................................................................................... Periacerus Viraktamath & Parvathi

- Style without preapical lobe, apophysis without lateral longitudinal lamellate extension ( Fig. 31G )...................................................................................................... Matangia gen. nov. (part)

22. Aedeagus with shaft apex attenuated and often whip-like, shaft often strongly sinuate, without apical triangular unpaired process dorsally ( Figs 44H , 45G , 48M )............................................................. Ulavius gen. nov.

- Aedeagus with shaft apex not attenuated, with apical unpaired dorsal triangular process ( Fig. 13H ).... Bellacerus gen. nov.

Figures

FIGURES 1A–H. Balocha astuta (Melichar), Bengaluru population. A, habitus, dorsal view; B, habitus, lateral view; C, face; D, metabasitarsomere, ventral view; E, male genital capsule, lateral view; F, style, lateral view; G, aedeagus lateral view, H, aedeagal shaft posterior view.

FIGURES 2A–M. Balocha astuta (Melichar): Types of species of Balocha described by Kameswara Rao et al. A–D, F, I–K, B. anufrievi Kameswara Rao & Ramakrishnan:A, male genital capsule, lateral view, paratype; B, anal collar process, posterior view, holotype; c, subgenital plate, lateral view, paratype; D, style, lateral view, paratype; F, forewing, paratype; I, style and aedeagus, holotype; J–K, connective and aedeagus, ventral view (J) and aedeagus, lateral view, paratype. B. bifurcata Kameswara Rao, Ramakrishnan & Ghai: G, forewing, paratype; L, aedeagus and connective, dorsal view, holotype. B. maldonadoi Kameswara Rao & Ramakrishnan, holotype: E, style, lateral view; H, forewing; M, aedeagus, lateral view.

FIGURES 8A–L. Amritodus atkinsoni (Lethierry). A–D, type male: A, dorsal view; B, lateral view; D. head, anterior view; D, label data. E–F, female, dorsal and lateral views; G–H, sexual dimorphism in shape of labium, female (G) and male (H); I, metabasitarsomere, ventral view; J, male genital capsule, lateral view; K, style, lateral view; L. style, connective and aedeagus, lateral view.

FIGURES 9A–H. Amritodus brevis Viraktamath, holotype male: A–B, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, style, connective and aedeagus, lateral view; H, styles, connective and aedeagus, dorsal view.

FIGURES 11A–H. Amritodus quinquepunctatus (Melichar). Paratype male, A. brevistylus Viraktamath, a junior synonym of A. quinquepunctatus (Melichar):A–B, dorsal and lateral views; C, face; D, label data; F, male genital capsule; E, metabasitarsomere, ventral view; G, styles, connective ad aedeagus, dorsal view; H, aedeagus, lateral view.

FIGURES 13A–H. Bellacerus bellus (Viraktamath) comb. nov., holotype male:A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, styles, connective and aedeagus, dorsal view; H, aedeagus, lateral view.

FIGURES 14A–N. Burmascopus fasciolatus (Distant): A–D, lectotype female: A–B, dorsal and lateral views; C, face, D, label data; E–H, paralectotype male: E–F, dorsal and lateral views; G, face; H, label data; I, male genital capsule, lateral view; J, style, dorsal view; K, connective and aedeagus, dorsal view; L, connective and aedeagus, lateral view; M–N, aedeagal lateral flanges, dorsal (M) and lateral (N) views.

FIGURES 15A–H. Busoniomimus manjunathi Viraktamath & Viraktamath, holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, styles and connective, dorsal view; H, aedeagus, lateral view.

FIGURES 17A–J. Idiocerus cedarae Viraktamath & Sohi, holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male sternite VIII, ventral view; G, male genital capsule, lateral view; H, style lateral view; I, connective, style and aedeagus, dorsal view; J, aedeagus, lateral view.

FIGURES 19A–F. Idioscopus bimaculatus (Pruthi), male: A–B, habitus, dorsal and lateral views; C, face; D, male genital capsule, lateral view; E, styles, connective and aedeagus, ventral view; F, aedeagus, connective and style, lateral view.

FIGURES 20A–L. Idioscopus clypealis (Lethierry): A–D type male: A–B, habitus, dorsal and lateral views; C, head anterior view; D, label data. E–G, non-type male: E–F, habitus, dorsal and lateral views; G, face; H, non-type female face; I, metabasitarsomere, ventral view; J, male genital capsule, lateral view; K, style, lateral view; L, connective and aedeagus, lateral view.

FIGURES 22A–H. Idioscopus irenae Viraktamath, holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, styles, connective and aedeagus, ventral view; H, style, connective and aedeagus, lateral view.

FIGURES 24A–H. Idioscopus nitidulus (Walker): type female, Idiocerus niveosparsus Lethierry, a junior synonym of I. nitidulus: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, face, male with expanded tip of labium; F, male genital capsule, lateral view; G, style, connective and aedeagus, lateral view; H, styles, connective and aedeagus, ventral view.

FIGURES 25A–G. Idioscopus pretiosus Viraktamath, holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, male genital capsule, lateral view; F, styles, connective, and aedeagus, dorsal view; G, styles, connective and aedeagus, lateral view.

FIGURES 28A–I. Jogina robustipennis (Viraktamath) comb. nov., holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, style, connective and aedeagus, dorsal view; H, style, lateral view; I, connective and aedeagus, lateral view.

FIGURES 29A–I. Jogocerus freytagi Viraktamath, holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, styles, connective and aedeagus, ventral view; H, connective and aedeagus, ventral view; I, connective and aedeagus, lateral view.

FIGURES 30A–M. Keralus webbi (Viraktamath) comb. nov., holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E–G, female, lateral, dorsal views and face; H, metabasitarsomere, ventral view; I, male genital capsule, lateral view; J, style, lateral view; K, styles, connective and aedeagus, ventral view; L, aedeagus, lateral view; M, style, connective and aedeagus, lateral view.

FIGURES 31A–H. Matangia capriliana (Viraktamath & Murphy) comb. nov., holotype male:A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, styles, connective and aedeagus, ventral view; H, connective and aedeagus, lateral view.

FIGURES 32A–H. Matangia indica (Viraktamath) comb. nov., holotype male:A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, styles, connective and aedeagus, ventral view; H, connective and aedeagus, lateral view.

FIGURES 34A–L. Matangia thapai (Viraktamath & Hongsaprug) comb. nov., A–D, holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E–G, paratype female: E–F, habitus, dorsal and lateral view; G, face; H, male genital capsule, lateral view; I, style, lateral view; J, connective, style and aedeagus, ventral view; K, connective and dorsal apodeme, dorsal view; L, style, connective and aedeagus, lateral view.

FIGURES 36A–K. Metidiocerus gnezdilovi sp. nov., holotype male:A–B, habitus male, dorsal and lateral views; E, face, male; C–D, F, female paratype: D–E, habitus, dorsal and lateral view; F, face; G, male sternite VIII, ventral view: H, male genital capsule, lateral view; I, styles, connective and aedeagus, ventral view; J, apex of aedeagus and style, dorsal view; K, style, connective and aedeagus, lateral view.

FIGURES 37A–L. Nilgiriscopus transversus Viraktamath, holotype male and paratype female: A–B, habitus male, dorsal and lateral views; C, face, male; E, label data; E, female paratype, habitus, dorsal view; F, forewing; G, female abdominal apex, ventral view; H, male genital capsule, lateral view; I, connective, dorsal view; J, style, lateral view; K, connective and aedeagus, lateral view; L, aedeagus, ventral view.

FIGURES 38A–N. Species of Paraidioscopus Maldonado-Capriles: A–E, P. andamanicus Viraktamath & Yeshwanth: A–B, holotype male, habitus, dorsal and lateral views; C, face; D, label data; E, aedeagus, lateral view. F–J, P. harrisi Viraktamath: F–G, paratype male, habitus, dorsal and lateral views; H, face; I, label data; J, aedeagus, lateral view. K–N, P. unimaculata (Melichar): K–L, male, habitus, dorsal and lateral views; M, face; N, aedeagus, lateral view.

FIGURES 40A–K. Periacerus lalithae (Viraktamath): holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E–F, female paratype, habitus, dorsal and lateral view; G, metabasitarsomere, dorsal view; H, male genital capsule, lateral view; I, styles, connective and aedeagus, dorsal view; J, style, dorsal view; K, aedeagus, lateral view.

FIGURES 41A–L. Periacerus lankensis Viraktamath & Parvathi, holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, forewing; F, male sternite VIII, ventral view; G, male genital capsule, lateral view; H, subgenital plate, lateral view; I, connective, dorsal view; J, style, lateral, dorsal and ventral views; K, aedeagus, ventral view; L, connective and aedeagus, lateral view.

FIGURES 42A–G. Tasnimocerus clypeatus Ghauri: A–D, holotype male: A–B, habitus, dorsal and lateral views; C, face; E, label data; E–G, female non-type, E–F, habitus, dorsal and lateral view; G, face.

FIGURES 44A–H. Ulavius anasuyae (Viraktamath & Viraktamath) comb. nov., holotype male:A–B, habitus, dorsal and lateral views; C, face; D, label data; E, metabasitarsomere, ventral view; F, male genital capsule, lateral view; G, styles, connective and aedeagus, ventral view; H, styles, connective and aedeagus, lateral view.

FIGURES 45A–G. Ulavius decoratus (Viraktamath) comb. nov., holotype male: A–B, habitus, dorsal and lateral views; C, face; D, label data; E, male genital capsule, lateral view; F–G, styles, connective and aedeagus, lateral view.

FIGURES 48A–M. Ulavius parvathiae sp. nov., holotype male:A–B, habitus, dorsal and lateral views; C, face; D–F, paratype female, habitus, dorsal, lateral views and face; G, male genital capsule, lateral view; H, male pygofer and anal collar with process, dorsolateral view; I, style, connective and aedeagus, ventral view; J, style, lateral and style apex, dorsal views; K, aedeagus, dorsal view; L, aedeagus, lateral view; M, connective and aedeagus, lateral view.

FIGURES 52A–M. Busonia amentata Distant, paratypes: A–D, male, habitus, dorsal and lateral views; C, face; D, label data; E–H, female, habitus, dorsal and lateral views, G, face; H, label data; I, male genital capsule, lateral view; J, connective and styles, dorsal view; K, connective and aedeagus, dorsal view; L, connective and aedeagus, lateral view; M, aedeagus, posterior view.

FIGURES 55A–D. Chunra puncticosta (Walker): A–D, holotype male, Iassus latifrons Walker, a junior synonym: A, habitus dorsal view; B, habitus, lateral view; C, face; D, label data.

FIGURES 56A–M. Ceylonoscopus quadripunctatus Viraktamath: A–D, holotype male habitus, dorsal, lateral views, face (C) and label data (D); E–F, female paratype habitus, dorsal, lateral views; G, male genital capsule, lateral view; H, subgenital plate, ventral view; I, male sternite VIII, ventral view; J, style, dorsal view; K, aedeagus, ventral view; L, connective, dorsal view; M, connective and aedeagus, lateral view.

FIGURES 57A–J. Lankacerus rotundus Viraktamath: A–D, holotype male habitus, dorsal, lateral views, face (C) and label data (D); E, forewing; F, male genital capsule, lateral view; G connective, dorsal view; H, style, dorsal view; I, aedeagus, lateral view; J, aedeagus, ventral view.

FIGURES 58A–M. Neoscopus ceylonensis Viraktamath: A–B, E–G, holotype male habitus, dorsal, lateral views, face (E) and label data; C–D, F, female paratype habitus, dorsal, lateral views, face (F); H, female abdomen, ventral view; I, female sternite VII, ventral view; J, male genital capsule, lateral view; K, style, dorsal view; L, connective and aedeagus, lateral view; M, connective and aedeagus, ventral view.

FIGURES59A–L. Idiocerini andMegipocerini of the Indiansubcontinent,forewings:A,Balocha astuta; B,Amritodusatkinsoni; C, Bellacerus bellus; D, Busoniomimus manjunathi; E, B. mudigerensis; F, Idiocerus cedarae; G, Idioscopus bimaculatus; H, Idioscopus nitidulus; I, Jogina robustipennis; J, Jogocerus freytagi; K, Keralus webbi; L, Matangia capriliana.