Eurymelinae

Xue, Qingquan, Nyima, Tenzin, Da, Wa & Zhang, Yalin, 2025, Taxonomy of eurymeline leafhoppers from Xizang, China (Hemiptera: Cicadellidae) with two new genera and three new species, Zootaxa 5683 (3), pp. 377-396 : 378

Key to species of Eurymelinae (excluding Macropsini ) from Xizang, China

1. Lateral frontal sutures absent ( Fig. 1D )................................................... Busonia manipurensis

- Lateral frontal sutures present ( Fig. 2D )................................................................... 2

2. Pronotum transversely striate ( Fig. 5C ).................................................. Tasnimocerus clypeatus

- Pronotum shagreen ( Fig. 3C )............................................................................ 3

3. Hind femur with 2+1 apical setae......................................................................... 4

- Hind femur with 2+0 apical setae......................................................................... 6

4. Aedeagal shaft sinuate in lateral view ( Fig. 13D )............................................................ 5

- Aedeagal shaft bent anterodorsad in lateral view ( Fig. 11D ).......................... Yarlungocerus linzhiensis sp. nov.

5. Pygofer ventral margin with inner process ( Fig. 13A )............................... Xizangocerus chayuensis sp. nov.

- Pygofer ventral margin without inner process ( Fig. 12A )........................... Xizangocerus gyirongensis sp. nov.

6. Apex of male style with dense short setae; female sternite VII caudal margin with median process ( Fig. 4J ).................................................................................................. Parocerus laurifoliae

- Apex of male style without setae; female sternite VII caudal margin without median process ( Fig. 2I ).................. 7

7. Inner margin of lorum and gena with dark brown stripes ( Fig. 3D ); aedeagus broadened apically in ventral view ( Fig. 9E )................................................................................. Metidiocerus impressifrons

- Inner margin of lorum and gena without such stripe ( Fig. 2D ); aedeagus tapered apically in ventral view ( Fig. 8E ).............................................................................................. Idiocerus dilatatus

Figures

FIGURE 1. Busonia manipurensis Viraktamath & Yeshwanth A, habitus of male, dorsal view; B, habitus of male, lateral view; C, head and thorax of male, dorsal view; D, face of male; E, head and thorax of female, dorsal view; F, face of female; G, habitus of female, dorsal view; H, habitus of female, lateral view; I, female genitalia, ventral view; J, first valvulae; K, second valvulae; L, apex of first valvulae; M, apex of second valvulae.

FIGURE 2. Idiocerus dilatatus Fang A, habitus of male, dorsal view; B, habitus of male, lateral view; C, head and thorax of male, dorsal view; D, face of male; E, head and thorax of female, dorsal view; F, face of female; G, habitus of female, dorsal view; H, habitus of female, lateral view; I, female genitalia, ventral view; J, first valvulae; K, second valvulae; L, apex of first valvulae; M, apex of second valvulae.

FIGURE 3. Metidiocerus impressifrons (Kirschbaum) A, habitus of male, dorsal view; B, habitus of male, lateral view; C, head and thorax of male, dorsal view; D, face of male; E, head and thorax of female, dorsal view; F, face of female; G, habitus of female, dorsal view; H, habitus of female, lateral view; I, female genitalia, ventral view; J, first valvulae; K, second valvulae; L, apex of first valvulae; M, apex of second valvulae.

FIGURE 4. Yarlungocerus linzhiensis sp. nov. A, habitus of male, dorsal view; B, habitus of male, lateral view; C, head and thorax of male, dorsal view; D, face of male; E, forewing; O, rostrum ventral view. Parocerus laurifoliae (Vilbaste) F, head and thorax of female, dorsal view; G, face of female; H, habitus of female, dorsal view; I, habitus of female, lateral view; J, female genitalia, ventral view; K, first valvulae; L, second valvulae; M, apex of first valvulae; N, apex of second valvulae.

FIGURE 5. Tasnimocerus clypeatus Ghauri A, habitus of male, dorsal view; B, habitus of male, lateral view; C, head and thorax of male, dorsal view; D, face of male; E, head and thorax of female, dorsal view; F, face of female; G, habitus of female, dorsal view; H, habitus of female, lateral view; I, female genitalia, ventral view; J, first valvulae; K, second valvulae; L, apex of first valvulae; M, apex of second valvulae.

FIGURE 8. Idiocerus dilatatus Fang A, male genital capsule, lateral view; B, connective, ventral view; C, connective, lateral view; D, aedeagus, lateral view; E, aedeagus, ventral view; F, style, lateral view.

FIGURE 9. Metidiocerus impressifrons (Kirschbaum) A, male genital capsule, lateral view; B, connective, ventral view; C, connective, lateral view; D, aedeagus, lateral view; E, aedeagus, ventral view; F, style, lateral view.

FIGURE 11. Yarlungocerus linzhiensis sp. nov. A, male genital capsule, lateral view; B, connective, ventral view; C, connective, lateral view; D, aedeagus, lateral view; E, aedeagus, ventral view; F, style, lateral view.

FIGURE 12. Xizangocerus gyirongensis sp. nov. A, male genital capsule, lateral view; B, connective, ventral view; C, connective, lateral view; D, aedeagus, lateral view; E, aedeagus, ventral view; F, style, lateral view.

FIGURE 13. Xizangocerus chayuensis sp. nov. A, male genital capsule, lateral view; B, connective, ventral view; C, connective, lateral view; D, aedeagus, lateral view; E, aedeagus, ventral view; F, style, lateral view.