Bioacoustics of Mikrohyperbaenus

Description. Small-sized (body length 11 mm ) and slender ( Fig. 1A, B ). Coloration. Light yellow with some brown spots on the head and abdomen. Head. Space between antennal sockets 1.5 times the wider than the antennal scape; median and lateral ocelli ovoid, reduced with a diffuse edge; maxillary palps elongated with similar thickness, labial palpi reduced and robust ( Fig. 2A, B ). Thorax. Pronotum narrow and smooth, with quadrangular disc and lateral lobes ( Fig. 2C, D ); humeral notch moderately developed ( Fig. 2C ); auditory spiracle below the lower margin of the lateral lobe of the pronotum armed with a tubercle. Sternum lobes are rounded and narrow, without prolongations. Legs. Fore coxa armed with a spine dorsally. Fore and mid femora unarmed; fore and mid tibiae with four spines on each ventral margin and one spine on each side of the ventral-apex ( Fig. 2B ); hind femur slightly robust ( Fig. 1D ); hind tibia armed with small spines dorsally, apex with three spurs on each side, being the dorsal one the most conspicuous. Wings. Rectangular and widely exceeding the apex of the abdomen and hind femur ( Fig. 1B ). Abdomen. Stridulatory apparatus present, located on each side of the first and second abdominal tergite ( Fig. 2C ). The ninth tergite covering the tenth tergite, rounded, smooth, and with the distal portion in two sub-rectangular lobes, the distal edge of the lobes armed with small, sclerosed, and triangular denticulations (Fig. 3A, B). Cerci simple and without branches (Fig. 3A). Subgenital plate without styli (Fig. 3C). Phallic complex. Membranous, lw.vl. finger-like, ejaculatory duct wide and prominent (Fig. 3D-F). Female. Unknown.