Key to the known species of Metriogryllacris fida species group

1 Female subgenital plate with 1 pair of minute tubercles on ventral surface........................................ 2

- Female sbugenital plate with 1 pair of long processes on ventral surface.......................................... 3

2 Hooks of mlae ninth abdominal tergite very small, posterior margin of male subgenital plate almost truncate; female sbugenital plate with a pair of narrowly spaced tubercles, basal area of ventral valvae with 1 pair of short lateral lobes....... M. magna

- Hooks of male ninth abdominal tergite large, posterior margin of subgenital plate slightly concave; female subgenital plate with 1 pair of widely spaced tubercles, basal area of ventral valvae with 1 pair of long lateral lobes................. M. comes

3 Male unknown; basal area ovipositor without tubercles............................................... M. fasciata

- Male ninth abdominal tergite with hook pressed each other; basal area of ovipositor with 1 pair of tubercles....... M. tigris