Stirellus Osborn & Ball

Duan, Yani, Webb, M. D. & Zhang, Yalin, 2016, Review of the leafhopper tribe Stenometopiini (Hemiptera: Cicadellidae: Deltocephalinae) from China with description of four new species, Zootaxa 4171 (1), pp. 101-138 : 107-108

Key to species of Stirellus Osborn & Ball from China

The following species are of uncertain identity and are therefore omitted from the key: S. breviceps , S. projectus , and S. viridicans (see checklist and species entries below for details).

1. Vertex and/or pronotum, mesonotum and scutellum with orange-red to brownish red markings......................... 2

- Vertex, pronotum, mesonotum and scutellum without orange-red to brownish red markings........................... 4

2. Vertex with longitudinal orange-red bands ( Fig. 17 A–C)...................................... neospeciosus sp. nov.

- Vertex with transverse band with or without additional spots, orange-red to brownish red............................. 3

3. Anterior margin of head acutely angled ( Fig. 15 A).......................................... multipunctatus sp. nov.

- Anterior margin of head rounded ( Fig. 22 A–B)..................................................... rubrolineatus

4. Vertex with subapical transverse band or spots ( Figs. 11 A, 12B)............................................. indrus

- Vertex without subapical transverse band or spots............................................................. 5

5. Vertex more than twice as long as width between eyes, apex of vertex and underside of body dark brown ( Figs. 4 A–E, 5A–E)............................................................................................... capitatus

- Vertex shorter than twice as long as width between eyes, apex of vertex and underside of body not dark brown............ 6

6. Head acutely produced ( Figs. 9 A, 20A)..................................................................... 7

- Head not acutely produced............................................................................... 8

7. Style apophysis moderately long ( Fig. 10 E)............................................................ grandis

- Style apophysis very long ( Fig. 21 D)................................................................ productus

8. Aedeagal shaft short and stout ( Fig. 26 I).................................................... translucidus sp. nov.

- Aedeagal shaft elongate................................................................................. 9

9. Vertex evenly rounded ( Fig. 7 A)................................................................. daii sp. nov.

- Vertex angularly rounded ( Fig. 27 A–E).......................................................... yeongnamensis

Figures

FIGURE 4. Stirellus capitatus. Male. A – D: habitus, dorsal view; E: face.

FIGURE 7. Stirellus daii sp. nov. A – C: male; D – G: female. A, D: habitus, dorsal view; B, E: habitus, lateral view; C, F: face; G: the end of female abdomen, ventral view.

FIGURE 9. Stirellus grandis. A – C: male; D – G: female. A, D: habitus, dorsal view; B, E: habitus, lateral view; C, F: face; G: the end of female abdomen, ventral view.

FIGURE 10. Stirellus grandis. A – B: male pygofer and segment X – XI, lateral view; C: male pygofer and segment X – XI, dorsal view; D: valve, subgenital plates and styles, ventral view; E – F: style, dorsal view; G: connective, dorsal view; H: aedeagus, dorsal view; I: connective and aedeagus, lateral view.

FIGURE 11. Stirellus indrus. Male. A – H: habitus, dorsal view; I: face.

FIGURE 15. Stirellus multipunctatus sp. nov. Male. A: habitus, dorsal view; B: habitus, lateral view; C: face.

FIGURE 17. Stirellus neospeciosus sp. nov. A: male; B – F: female. A – C: habitus, dorsal view; D: habitus, lateral view; E: face; F: the end of female abdomen, ventral view.

FIGURE 21. Stirellus productus. A: male pygofer side, lateral view; B: male pygofer and segment X – XI, dorsal view; C: valve and subgenital plates, ventral view; D – E: style, dorsal view; F: connective, dorsal view; G: aedeagus, dorsal view; H: connective and aedeagus, lateral view; I: aedeagus, lateral view.

FIGURE 22. Stirellus rubrolineatus. A – B: habitus, dorsal view; C: habitus, lateral view; D: face.

FIGURE 26. Stirellus translucidus sp. nov. A, C: male pygofer and segment X – XI, lateral and dorsal view, respectively; B: male pygofer side, lateral view; D: valve and subgenital plate, ventral view; E – F: style, dorsal view; G: connective, dorsal view; H: aedeagus, dorsal view; I: connective and aedeagus, lateral view; J: aedeagus, lateral view.

FIGURE 27. Stirellus yeongnamensis. Male. A – E: habitus, dorsal view; F: face.