Bioacoustics of Radigryllacris mingzheni

Figure 1 Description. Male. Body large. Head. Face ovoid; fastigium verticis about twice as wide as scape; fastigium frontis separated from fastigium verticis by a very fine suture ( Fig. 1A ). Ocelli distinct; median ocellus obviously larger than lateral ocelli. Thorax. Anterior margin of pronotum indistinct projecting in middle, posterior margin arched ( Fig. 1B ); lateral lobes longer than high, anterior angle widely arched, posterior angle rounded angular, humeral sinus shallow ( Fig. 1C ). Fore coxae with 1 small spine. Fore and middle femora unarmed; hind femora ventrally with 4 internal and 8–9 external spines. Fore and middle tibiae with 4 pairs of spurs and 1 pair of apical spurs on ventral surfaces, middle tibiae with 1 internal spur on dorsal surface. Hind tibiae dorsally with 6 pairs of spines and 1 pair of apical spurs, ventral surface with 1 pair of subapical spurs and 2 pairs of apical spurs. Wings surpassing the hind femora, hind wings slightly longer than tegmina. Abdomen. Second and third abdominal tergites with few, very minute stridulatory pegs ( Fig. 1D ). Eighth abdominal tergite prolonged. Ninth abdominal tergite semi-globular: prolonged and down-curved; apical half furrowed in midline ( Fig. 1G ), at end of furrow split and on both sides of split area with an obtuse bump which triangular in apical view and more slender than other species of the genus ( Fig. 1H ), below bump with a wide process faintly curving dorsad ( Fig. 1H ). Subgenital plate almost twice as wide as long; posterior margin with an arched concavity, the lateral lobes rounded ( Fig. 1I ); styli roughly cylindrical and faintly incurved, inserted laterally on subapical area. Female. Unknown. Coloration. Body green. Wings brown with black cells. Eyes brown. Ocelli pale yellow. Measurements (mm). BL ♂ 32.4, PL ♂ 7.4, TL ♂ 27.7, HFL ♂ 17.6.