Bioacoustics of Platydecticus pasaptur

Description: Measurements (in mm), Holotype ♂ / Paratype ♀ : Length body 6.12/9.65. Length head 1.36/1.43. Width head 2.11/2.21. Tall head 2.97/4.10. Minimum interocular distance 0.71/0.71; Length pronotum 1.10/1.40. Width pronotum 2.47/2.76. Length hind femur 6.35/8.92. Length tegmina 2.07/-. Length ovipositor -/4.26. Color: Predominantly grey with irregular brown markings, including eyes, antennae, palps, legs, male tegmen and female ovipositor ( Figs. 2 a-e, 4a–c); thoracic and abdominal sternites yellow. Outer page of hind femur with longitudinal band only on the proximal half, reduced bifurcation, weak band at the apex and median area ( Fig. 2a ); inner page slightly pigmented ( Fig. 2a ); female with longitudinal stripe more extended ( Fig. 4a ). Hind tibia black on the dorsal and distal thirds, and on the spines. Tarsomere dark at the articulation points; claws brown. Fore and middle tibia with a weak subapical band. Abdomen with tergites I to III laterally dark, tergite VII darker than the rest ( Fig. 2b ); female with darker, more contrasting spots ( Fig. 4c ). Male cercus bicolored. Female ovipositor teeth black ( Fig. 4b ). Male: Size small for genus. Head with eye prominent, inferior margin eye under antennal socket ( Fig. 2e ); fastigium of vertex narrow, sulcate for entire length, compressed medially and slightly dilated at the apex ( Fig. 2d ); with 4 basal tubercles on dorsal maxilla. Pronotum transverse, posterior margin strongly concave ( Fig. 2d ). Tegmen oval, with 42 stridulatory file teeth. Legs: procoxae process acute, prominent. Genicular lobe of the middle and hind femur armed with minute spine only on posterior lobe. Fore tibiae ventral surface with 4 spines each margin, and 1 each lateral apical spines. Middle tibia with 5 spines each ventral margin and 1 each lateral apical spines. Hind tibiae armed on dorsal surface with 11 spines on outer margin, ventral surface with a pair of slender subapical spines, one on each side, apex with 2 spurs lateral, the inner one larger. Fore and middle tarsus with plantula and pulvilli small and symmetric. Hind metatarsus with plantula and pulvilli length, the inner one larger, other tarsomere with pulvilli small and symmetric. Abdomen: ventro-caudal angles of ninth tergite acutely produced ( Fig. 3c ). Pseudocercus broad, apex expanded, external and internal angles acute, subapical tooth elongated, sclerotized and apically bent inward ( Figs. 3a, d ). Cercus short, conical apex; internal tooth short, stout, abruptly bent cephalad at base ( Figs. 3b, e, f ). Subgenital plate simple, unmodified in median area ( Fig. 3a ); styli elongate ( Fig. 3c ). Titillator with lateral sclerite elongate, broad, with apex spatulate ( Fig. 3h ); ventral lobes tongue-shaped, middle region slightly sclerotized and areolated ( Fig. 3i ); middle lobe digitiform, covered with black spines, dorsally sulcate, apex bilobed ( Fig. 3g , j ). Female : ovipositor ( Fig. 4b ) short, about half the length of the femur, serrate on dorsal margin for about half its length, with 13 low teeth; serrate on ventral margin for nearly a third of its length, with 11 low teeth; apex with a row of 8 lateral tubercles on the dorsal valve, and a row of 7 lateral tubercles on ventral valve. Subgenital plate short and broad.