Bioacoustics of Elimaea (Elimaea) thaii

Description. Fastigium verticis narrow, dorsally furrowed, apex sub-acute; pronotum with disc flattened in posterior area ( Fig.11 ), lateral angles rounded ( Fig.12 ); transverse sulcus short Y- shaped ( Fig.11 ), slightly behind middle; paranota about 1.1–1.2x longer than high; ventral and posterior margins rounded together; humeral sinus distinct; tegmina surpassing hind knee; radius sector branching between 7.5–12 mm from the base. Male . Stridulatory file with ca . 34–42 teeth which are large and somewhat spaced from each other in basal half and gradually becoming narrower and denser towards apex ( Fig.15 );tenth abdominal tergite with apical margin broadly rounded; central area setose and with a distinct puncture in middle; epiproct long tongue shaped; cerci short and strongly curved; apical area short, compressed, and twisted, slightly curved with apex acute ( Fig.14 );subgenital plate narrow, split for slightly less than apical half ( Fig.13 ). Female. Tenth abdominal tergite with apex sub-truncate or slightly concave with a distinct puncture in middle; epiproct long, triangular, apex sub-obtuse; cerci moderately curved, slender, apex varying from sub-acute to obtuse ( Fig.16 );sub-genital plate long, triangular, in general outline with a medial furrow bordered by a carina at each side; apex, sub-truncate between two slightly projecting lateral angles ( Fig.17 ); gonangulum ( Fig.18 ) of ovipositor ( Fig.19 ) with ventro-apical appendage smaller than in E. subcarinata and E. chloris . Elimaea ( Elimaea ) subcarinata (Stål, 1861) ( Figs. 29–36 )

Description. Fastigium verticis narrow, apex sub-acute, dorsal surface furrowed. Pronotum with disc flattened, especially in posterior area, lateral angles rounded; transverse sulcus Y- shaped, slightly behind middle ( Fig.29 ); anterior margin concave, posterior margin rounded; paranota longer than high, ventral and posterior margins rounded; humeral sinus distinct. Tegmina surpassing hind knee; radius sector branching ca . 8–10 mm from base. Anterior femur with spines on the both ventral margin. Meso and post femora with spines on ventro-external margin. Genicular lobes bispinose. Anterior tibia with external and internal, dorsal and ventral apical spurs. Male. Stridulatory file with 6–9 large to medium sized teeth and a few indistinct minute teeth ( Fig.32 );tenth abdominal tergite with apex broadly rounded; central area setose and with a small puncture in middle; epiproct tongue shaped, apex obtuse; cerci strongly curved, apical area compressed, sinuate and external side convex, internal concave, with narrowing margins and apex sub-acute on dorsal carinal side ( Fig.30 ); sub-genital plate moderately curved dorsad, split into two obtuse lobes in ca . apical third ( Fig.31 ). Female. Cerci weakly to regularly curved with apex narrowed, sub-obtuse ( Fig.34 ); sub-genital plate excised and bifid with triangular apices; gonangulum of ovipositor bulbous ( Fig.35 ), a little larger than the other E . subcarinata stat. rev. , lies in a cleft between dorsal and ventral valves of ovipositor ( Fig.36 ).