Bioacoustics of Diaphanogryllacris conica

( Figs.1 , 8A , 9A–B ) Description. Holotype Male. Body medium-sized for the genus. Head. Face narrow oval; fastigium verticis slightly broader than antennal scape. Eyes ovoid, slightly protruding forward and outward; ocelli indistinct, oval and small ( Fig. 1A–B ). Thorax. Pronotum broad, anterior margin slightly protruding forward while posterior margin straight ( Fig. 1B–C ). Lateral areas of second and third abdominal tergites each with 2 rows of stridulatory pegs. Tegmina and Wings. Wings elongate, surpassing apex of stretched hind tibia. Tegmen: R releases Rs near the middle, both forked near apical area; MA releases MP near the third base; CuA releases CuA1 and CuA2 near the third base; MP and CuA1 shortly fuse near the middle; CuP unbranched, free throughout; with 4 anal veins. Hind wing slightly longer than tegmen ( Fig. 9A–B ). Legs. Fore coxa with 1 spine at anterior margin. Fore and middle femora unarmed on ventral surfaces; fore and middle tibiae each with 4 pairs of movable long spines and 1 pair of short apical spurs on ventral surfaces, middle tibia with 1 inner apical spur on dorsal surface. Hind femur with 6–9 inner spines and 6–8 outer spines on ventral surface; hind tibia with 6–7 spines on inner and outer margins on dorsal surface respectively; while apical area with 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs. Abdomen. Ninth abdominal tergite globular with apical margin slightly concave in the middle; each lateral margins of concavity with a downcurved posterior process. Tenth abdominal tergite with a pair of upcurved processes, which basal two-thirds cylindrical and arranged in parallel; apical one-third conical, touching each other in apical area, apices acute ( Fig. 1D–E ). Cercus long conical, slightly incurved, apex rounded. Subgenital plate rectangular, basal margin slightly straight, posterior margin with a notch in the middle, the lateral lobes triangular. Styli cylindrical, apices rounded, inserted on lateral margins of subapical area of subgenital plate ( Fig. 1F ). Female. Appearance is similar to that of male. Seventh abdominal sternite subrectangular, posterior margin arc-shaped. Base of subgenital plate broad, narrowing, with several transverse folds, posterior margin rounded. Ovipositor straight, significantly longer than hind femur ( Fig. 1G–H ). Coloration. Body yellowish-brown. Fastigium verticis with 2 black spots, occiput black, antennal socket with the edge black, antenna brown; genae under eyes with a longitudinal brown stripe separately. Eyes black ( Fig. 1A ). Middle area of pronotum with a black spot, which extending to lateral lobes, ventral edges of lateral lobes black ( Fig. 1B–C ). Tegmina and hind wings transparent, veins dark brown. Spines and spurs on fore and middle tibiae brown; apices of spines and spurs on hind femur and hind tibia brown. Eighth and ninth of male abdomen with abdominal tergites brown, apices of processes of ninth abdominal tergite black, processes of tenth abdominal tergite with apical areas black. Measurements (mm). Body: ♂ 28.0, ♀ 30.0; pronotum: ♂ 5.5, ♀ 6.0; tegmen: ♂ 25.4, ♀ 26.0; hind femur: ♂ 13.8, ♀ 14.5; ovipositor: ♀ 22.3.