Two new species of the genus Gibbotettix Zheng, 1992 (Orthoptera: Tetrigidae, Cladonotinae) from China Author Deng, Wei-An Author Zheng, Zhe-Min Author Wei, Shi-Zhen text Zootaxa 2016 4200 3 426 436 journal article 10.11646/zootaxa.4200.3.8 aecd0630-1e99-4c92-85b1-38c96b2296a5 1175-5326 187186 1AEF100A-EB79-41F4-84E8-70F131A2256F 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