Metriogryllacris species

Bian, Xun, Liu, Jing & Yang, Zizhong, 2021, Anotated Checklist of Chinese Ensifera: The Gryllacrididae, Zootaxa 4969 (2), pp. 201-254 : 220-221

Key to the Metriogryllacris species groups

1 Processes of male ninth abdominal tergite situated on lateral margin, widely spaced, movable; female seventh abdominal tergite entirely fused with subgenital plate bearing transverse fold and capulatory depression.................... M. gialai group

– Processes of male ninth abdominal tergite approximate, pressing each other or slightly separate, immobile............... 2

2 Female seventh abdominal stergite without transverse folds, and almost fused with subgenital plate bearing no distinct tubercles or processes; processes of male ninth abdominal tergite approximate............................. M. permodesta group

– Female seventh abdominal tergite with transverse folds, not fused with subgenital plate, bearing 1 pair of tubercles or processes.............................................................................................. 3

3 Tegmina shorter than pronotum, processes of male ninth abdominal tergite straight and pressed each other with apices pointing downward, female seventh abdominal tergite with unpaired depression............................ M. amitarum group

– Tegmina longer than pronotum, processes of male ninth abdominal tergite hook-shaped and slightly separated with apices pointing downward and slightly outward, female seventh abdominal tergite bearing a capulatory depression....................................................................................................... M. fida group