Key to the species of Gibbotettix Zheng, 1992

1. Lateral ridge of vertex slightly elevated; anterior margin of pronotum obtuse angular in the middle (Figs. 1, 3, 5, 7, 9, 11)... 2

- Lateral ridge of vertex distinctly elevated; anterior margin of pronotum straight (Figs. 13, 15, 17, 19)..................10

2. Width of vertex 3 times the width of an eye.................................................................3

- Width of vertex 2 to 2.6 times the width of an eye............................................................5

3. Lateral ocelli inserted lower one-third of an eye; anterior upper margin of pronotum with one concave in profile in male (Fig. 2).............................................................. Gibbotettix circinihumerus Zheng & Fu, 2003

- Lateral ocelli inserted little below or between lower margin of an eye; anterior upper margin of pronotum with two concave in profile in male (Fig. 4).................................................................................4

4. Lateral keels of prozona parallel; humeral angles arcuate.......................... Gibbotettix cristata (Liang, 1995)

- Lateral keels of prozona distinctly contracted backward; humeral angles obtusely angled. Gibbotettix vallis Zha & Wen, 2016

5. Humeral angle obtuse angular; upper margin of pronotum near anterior part distinctly curved (Figs. 6, 8, 10).............6

- Humeral angle wide rounded; upper margin of pronotum oblique toward anterior margin (Fig. 12).....................9

6. Width of vertex 2.3 times the width of an eye; antennae inserted below lower margin of an eye; top of hind process with a deeply concave in the middle (Fig. 5)......................................... Gibbotettix leishanensi s Zheng, 1992

- Width of vertex 2.5–2.6 times the width of an eye; antennae inserted far below lower margin of an eye..................7

7. Humeral angle curved; posterior process of pronotum surpassing apex of hind femur; lower margins of middle femora with one lamellar convex............................................................ .. Gibbotettix serrifemurus sp. nov.

- Humeral angle obtuse angular; posterior process of pronotum reaching knee of hind femur; lower margins of middle femora with two lamellar convex...............................................................................8

8. Apex of hind process truncated with slightly concave; midkeel of pronotum interrupted (Fig. 7).................................................................................................. Gibboettix emeiensis Zheng, 1992

- Apex of hind process with deeply concave; midkeel of pronotum entire (Fig 9)..................................................................................................... Gibbotettix hupingshanensis Fu & Zheng, 2002

9. Width of vertex 2.0 times the width of an eye; antennae inserted between lower margin of an eye; midkeel of pronotum entire (Fig. 11); posterior process of pronotum reaching knee of hind femur......... Gibbotettix guangxiensis Zheng & Jiang, 1998

- Width of vertex 2.5 times the width of an eye; antennae inserted far below lower margin of an eye; midkeel of pronotum interrupted; posterior process of pronotum reaching apex of hind femur................... Gibbotettix parvipulvillus sp. nov.

10. Width of vertex 2.0–2.8 times the width of an eye; vertex and frontal ridge are forming a right angle................... 11

- Width of vertex 3.2–3.4 times the width of an eye; vertex and frontal ridge are forming obtusely rounded or rounded...... 1 2

11. Upper margin of pronotum with one concave (Fig. 14); humeral angle right angle; apex of hind process truncated (Fig. 13)............................................................................... Gibbotettix zhengi Liang, 2011

- Upper margin of pronotum without concave (Fig. 16); Humeral angle obtuse angular or rounded; apex of hind process concave in the middle (Fig. 15)..................................................... Gibbotettix hongheensis Zheng, 1992

12. Width of longitudinal furrow of frontal ridge 2 time width of basal segment antenna; posterior process of pronotum surpassing apex of hind femur (Fig. 17); upper and lower keels of hind femur undulated (Fig. 18).................................................................................................. Gibbotettix lativertex Zeng & Zheng, 2011

- Width of longitudinal furrow of frontal ridge 1.5 time width of basal segment antenna; posterior process of pronotum reaching apex of hind femur (Fig. 19); upper and lower keels of hind femur smooth (Fig. 20).................................................................................................. Gibbotettix guizhouensis Zeng & Zheng, 2011