Tegotettix, Hancock, 1913

Patano, Romeo R., Mohagan, Alma B., Tumbrinck, Josef, Amoroso, Victor B. & Skejo, Josip, 2021, Horned and spiky: Tegotettix derijei sp. n. (Orthoptera: Tetrigidae) is a peculiar new pygmy grasshopper species from Mindanao, Zootaxa 4933 (2), pp. 198-210 : 201

Key to the species group of the genus Tegotettix

1A In frontal view, vertex V-shaped. Frontal costa above the bifurcation indistinct (extremely short). Lateral ocelli positioned between the compound eyes. Shoulders smooth and elegant................................. T. cristiferus species group

1B In frontal view, vertex truncated. Frontal costa above the bifurcation long. Lateral ocelli positioned lower, in the lower third or in the level of the lower margins of the compound eyes. Shoulders robust......................................... 2

2A Lateral ocelli positioned in the lower third of the compound eyes height. Femora with undulated margins. Shoulders without tubercles.................................................................... T. novaeguineae species group

2B Lateral ocelli in the level with the lower margins of the compound eyes. Femora with toothed margins. Shoulders with tubercles.......................................................................... T. armatus species group