Trigonocorypha Stål, 1873

Nagar, Rajendra, Swaminathan, R. & Mal, Jhabar, 2015, Some common and less known Phaneropterinae (Orthoptera: Tettigoniidae; Phaneropterinae) with the description of a new species from India, Zootaxa 4027 (3), pp. 301-340 : 318-320

Trigonocorypha Stål, 1873

Description. Pronotum with flat disc, conspicuous straight, serrate lateral carina with deep humeral notch. Tegmina wider or strongly narrowed at apex; wings longer than tegmina, often conspicuous, fore coxae spinose, hind femora with spines at lower sides. Fore and mid-tibiae with indistinct longitudinal upper groove or flat; midtibiae with spinules on posterior margin; openings of tympana on fore tibiae oval, exposed and membranous. Fastigium very low, wide, triangular, wider basally than antennal pedicel, pointed anteriorly and almost in contact with frontal apex at a single point; on upper side grooved or with lateral fringe. Eyes wide, oval, moderately convex. Pronotum with flat, slightly concave disc; lateral carinae straight, conspicuous, divergent posteriorly, with fine obtuse serration; posterior margin of pronotum rounded, without elevated fringe. Lateral lobes of pronotum quite vertical, flat, forming distinct angle with the disc, slightly higher than long, with slightly rounded posterior margin; humeral notch sharp but of moderate depth. Tegmina compact, coriaceous, narrowed apically. Wings longer than tegmina. Meso and metasternal lobes elongate, divided by acute notch, pointed apically. Fore coxae with small spinule; all femora almost flat on lower side. Genicular lobes of all legs bi-spinose; posterior tibia with 4 apical spines. Ovipositor short, strongly flattened, bent upward, with fine serration on the entire upper margin and the apical part of lower margin; apex of ovipositor roundly obtuse. Cerci of male reaching apex of sub-genital plate slightly curved and conical.

Linear measurements (mm) T. unicolour T. angustata