Borneogryllacris, Karny, 1937

Li, Miaomiao, Fang, Yan, Liu, Xianwei & Li, Kai, 2014, Review of the species of the genus Marthogryllacris (Orthoptera, Gryllacrididae, Gryllacridinae), Zootaxa 3889 (2), pp. 277-288 : 281

Key to species of the subgenus Borneogryllacris

1. Apex of all femora black................................................................................ 2

- Apex of all femora not black............................................................................. 4

2. Pronotum with distinctly black margins.................................................................... 3

- Pronotum with 2 black spots in the front part only............................. M. (B.) bimaculata Li, Liu, Li sp. nov.

3. Occiput and genae pale.................................................. M. (B.) nigromarginata ( Karny, 1928)

- Occiput and genae blackish.............................................. M. (B.) nanlingensis Li, Liu, Li sp. nov.

4. Occiput and genae darkish................................................. M. (B.) melanocrania (Karny, 1929)

- Occiput and genae yellowish............................................................................. 5

5. Antennae yellowish; wings not infuscate; 9 th abdominal tergite of male with lobes spine-like................................................................................................... M. (B.) spinosa Li, Liu, Li sp. nov.

- Antennae blackish; Wings infuscate; 9 th abdominal tergite of male with lobes sickle-like M. (B.) elongata Li, Liu, Li sp. nov.