Decticus, Serville, 1831

Liu, Fei, Chen, Liusheng & Liu, Chunxiang, 2020, Taxonomic Studies of the genus Decticus Serville, 1831 from China (Orthoptera Tettigoniidae: Tettigoniinae), based on Morphology and Songs, Zootaxa 4860 (4), pp. 563-576 : 570

Key to the Decticus species found in China

1 Male cercus heavy, with a inner tooth near middle..................................... D. verrucivorus (Linnaeus) 2

- Male cercus conical, with a black inner tooth at base......................................................... 5

2 Tegmen approaching or exceeding knee of hind femur........................................................ 3

- Tegmen not approaching knee of hind femur................................................................ 4

3 Body large-sized ( Tables 6 , 7 ). Tegmen brown or light green, with dark brown or black spots................................................................................................................ D. v. crassus Götz

- Body medium-sized ( Tables 6 , 7 ). Tegmen light green, with light brown to transparent spots........... D. v. sayram ssp. n.

4 Body large-sized ( Tables 6 , 7 ). Tegmen aspect ratio about 3.54................................ D. v. latipennis ssp. n.

- Body medium-sized ( Tables 6 , 7 ). Tegmen aspect ratio about 4.15......................... D. v. verrucivorus (Linnaeus)

5 Tegmen exceeding knee of hind femur.................................................. D. albifrons (Fabricius)

- Tegmen not exceeding knee of hind femur.............................................. D. nigrescens Tarbinsky