Gomphomastacinae

Ge, Jun-Jie, Agrippine, Yetchom Fondjo Jeanne, Xu, Sheng-Quan & Huang, Huateng, 2021, Description of three new species of Gomphomastacinae (Orthoptera Eumastacoidea) from the east of Qinghai-Tibet plateau, China, Zootaxa 5068 (3), pp. 419-427 : 420

Revised identification key of Gomphomastacinae genera of China.

1. Antennae longer, with 25 segments, its length longer than hind femur....... Gomphomastax Brunner von Wattenwyl, 1898 .

1’ Antennae shorter, with 11~22 segments, its length not longer than hind femur..................................... 2

2. Apex of hind femur without spine........................................................................ 3

2’ Apex of the hind femur with 1~5 spines................................................................... 6

3. Antennae shorter, with 11 segments, its length almost as long as width; head not exceeding compound eyes............................................................................................ Myrmeleomastax Yin, 1984 .

3’ Antennae shorter, with 12~19 segments, its length longer than width; head exceeding compound eyes.................. 4

4. Antennae shorter, with 19 segments, reaching the basal part of hind femur in male; face with promontory, parallel on both sides................................................................................................................................................................................... Sinomastax Yin, 1984 .

4’ Antennae shorter, with 12~15 segments, not reaching the basal part of hind femur in male; promontory of face wider between antennae............................................................................................. 5

5. Antennae 13~15 segments......................................................... Ptygomastax Bienko, 1959 .

5’ Antennae 12 segments............................................................ Angulomastax Zheng, 1985 .

6. Antennae with 21~24 segments.................................................... Phytomastax Bienko, 1949 .

6’ Antennae with 15 segments........................................................... Pentaspinula Yin, 1979 .