Isopsera Brunner von Wattenwyl, 1878

Description. Fastigium verticis with slightly widening anterior margins; fastigium frontis separated by a narrow gap. Disc of pronotum almost flat, very slightly widening to the posterior, sulci in median, longitudinal furrow little distinct; anterior margin concave, posterior margin convex, lateral margins rounded, angular, straight; paranota 1.1–1.2 times higher than long ventral margin rounded, humeral sinus weak. Mesosternal lobes triangular, metasternal lobes rounded. Tegmina surpassing hind knees, translucent; radial and medial field with regular parallel transverse veinlets, less regular costal field and with a network of irregular veinlets; radius sector branching before middle of tegmina, simply furcated; dorsal field flat, acute triangular, 0.28–0.35 times the length of tegmina, stridulatory vein little protruding; stridulatory file not elevated on a socket, with large pegs over the whole length. Anterior coxae spined, anterior tibiae dorsally furrowed, tympana open on both sides. Hind knees with internal and external ventral lobes bispinose.