Evinus Dlabola

Lu, Lin, Dietrich, Christopher H. & Zhang, Yalin, 2013, Review of the leafhopper genus Evinus Dlabola (Hemiptera: Cicadellidae: Deltocephalinae), Zootaxa 3701 (4), pp. 421-436 : 423-424

Key to males of Evinus Dlabola

1. Connective V-shaped ( graminicolus group)....................................................... graminicolus

- Connective linear or Y-shaped (Fig. 1I).................................................................... 2

2. Mesonotum without distinct pair of black submedial spots, basolateral triangles light brown (Fig. 2A); 1S apodeme with lateral extension attenuate, not distinctly bifurcate in anterior view (Fig. 2K) ( hainanensis group)............................ 3

- Mesonotum with distinct pair of black submedial spots, basolateral triangles black (Fig. 1A), or mesonotum and scutellum almost entirely black (Fig. 4A); 1S apodeme with lateral extension prolonged and bifurcate in anterior view (Fig. 1L)...... 5

3. Aedeagus evenly tapered to apex in caudal view (Fig. 3O)................................................ longus

- Aedeagus with lateral margin distinctly convex in caudal view (Figs 2N, 8O)...................................... 4

4. Anteclypeus ca. twice as long as wide (Fig. 2D).................................................... hainanensis

- Anteclypeus distinctly more than twice as long as wide (Fig. 8D).......................................... sinuatus

5. Scutellum with distinct black posteromedial spot (Fig. 6A); length> 3.6 mm ( peri group)............................ 6

- Scutellum without distinct black posteromedial spot (Fig. 1A); length <3.3 mm ( angulatus group)..................... 8

6. Subgenital plate with lateral triangular lobe short, not extending to dorsal margin of pygofer lobe (Fig. 6E)............ peri

- Subgenital plate with lateral triangular lobe very long, extending to or beyond dorsal margin of pygofer lobe (Figs 4E, 7E).. 7

7. Subgenital plate with lateral triangular lobe just reaching dorsal margin of pygofer lobe; medial section of aedeagal shaft evenly curved in lateral view (Fig. 4E).......................................................... macrospinus

- Subgenital plate with lateral triangular lobe extended well beyond dorsal margin of pygofer lobe; medial section of aedeagal shaft straight in lateral view (Figs 7E, F)............................................................... planus

8. Aedeagus with apex abruptly bent anterad in lateral view (Fig. 1G)....................................... angulatus

- Aedeagus with apex evenly curved throughout length in lateral view............................................. 9

9. Anteclypeus parallel-sided; aedeagus in posterior view with shaft, parallel-sided distally; 2nd apodeme tergite not extending beyond the posterior margin (Figs 5C, N, H) obscurus

- Anteclypeus distinctly tapered; aedeagus in posterior view with shaft evenly tapered; 2nd apodeme tergite extending beyond the posterior margin (Figs 9C, N, H)..................................................................... tenuis