Bioacoustics of Ocellarnaca hainanensis

Figures 8 , 10B Description. Male. Body medium. Head. Face ovoid with scattered dots; fastigium verticis about twice as wide as scape; fastigium frontis separated from fastigium verticis by a very fine suture ( Fig. 8A ). Ocelli distinct; median ocellus obviously larger than lateral ocelli ( Fig. 8A ). Thorax. Anterior margin of pronotum projecting in middle, posterior margin faintly concave ( Fig. 8B ); lateral lobes longer than high, anterior angle arched, posterior angle rounded angular, humeral sinus indistinct ( Fig. 8C ). Fore coxae with 1 small spine; fore and middle femora unarmed, tibiae ventrally with 4 pairs of spurs and 1 pair of apical spurs; middle tibiae with 1 internal spur on dorsal surface. Hind femora with 10 internal and 9 external spines on ventral surface; dorsal surface of tibiae 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 justly reach the apex of abdomen. Abdomen. Second and third abdominal tergites with few, very minute stridulatory pegs ( Fig. 8D ). Eighth abdominal tergite prolonged. Ninth abdominal tergite semi-globular: prolonged and down-curved; lateral angles of ventral margins with 1 roughly cylindrical process which incurved before middle area and 1 slender spine below the cylindrical process on each side ( Fig. 8E, F, H, I ). Subgenital plate wider than long, lateral margins convex, posterior margin faintly concave; styli cylindrical inserted at apico-lateral angles ( Fig. 8H ). Female. Unknown. Coloration. Body greenish. Face brown. Eyes pale yellow. Wings brown with black cells. Measurements (mm). BL ♂ 20.4, PL ♂ 66.1, TL ♂ 18.1, HFL ♂ 11.9.