Key to the known species of Diaphanogryllacris (based on males)

1 Posterior margin of male ninth abdominal tergite medially obviously projected bearing some transverse folds, lateral margin with 1 short spine........................................................................... D. brevispina

- Posterior margin of male ninth abdominal tergite medially concave forward, lateral margin with 1 long spine............ 2

2 Processes of male tenth abdominal tergite divided into 2 spines only on one thirds apical area.................. D. inflatis

- Processes of male tenth abdominal tergite entirely divided to 2 spines............................................ 3

3 Occiput entirely black......................................................................... D. incavatis

- Occiput with yellow brown spot.......................................................................... 4

4 Processes of male tenth abdominal tergite with external margin of basal area slightly expanded to outwards, dorsal surface with 1 deep, longitudinal sinus......................................................................... D. fovea

- Processes of male tenth abdominal tergite with external margin of basal area not expanded to outward and dorsally without longitudinal sinus..................................................................................... 5

5 Apices of processes on male tenth abdominal tergite widely spaced to outwards.......................... D. laeta laeta

- Apices of processes on male tenth abdominal tergite nearly connected................................... D. panfilovi