Bioacoustics of Glolarnaca flata

Figure 6 Description. Female. Body medium. Head. Face ovoid; fastigium verticis about twice as wide as scape; fastigium frontis separated from fastigium verticis by a very fine suture ( Fig. 6A ). Ocelli indistinct. Thorax. Anterior margin of pronotum faintly projecting in middle, posterior margin triangularly concave in middle ( Fig. 6B ); lateral lobes longer than high, anterior angle widely arched, posterior angle rounded, humeral sinus shallow ( Fig. 6C ). Fore coxae with 1 small spine. Fore and middle femora unarmed; hind femora ventrally with 9 internal and 10 external spines. Fore and middle tibiae with 4 pairs of spurs and 1 pair of apical spurs on ventral surfaces, middle tibiae with 1 internal spur on dorsal surface. Hind tibiae dorsally 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 slightly surpassing the apex of abdomen. Abdomen. Second and third abdominal tergites each with few minute stridulatory pegs ( Fig. 6D ). Lateral margins of seventh abdominal sternite faintly convex and then converging after middle area; ventral surface in basal half convex and following with a transverse groove; posterior margin subtriangularly projecting, apical margin rounded, the ventral surface inconspicuously raised ( Fig. 6F ). Subgenital plate longer than wide, base covered by the projection of seventh sternite in middle ( Fig. 6E ); lateral margins gradually converging, posterior margin with a small median concavity ( Fig. 6E ). Ovipositor falcate, in subbasal area strongly, afterwards regularly upcurved and with gradually converging margins; tip narrowing, subacute ( Fig. 6G ). Male. Unknown. Coloration. Body brownish. Clypeo-frontal suture with 2 pairs of black spots. Between antennal sockets with 2 pairs of small black spots. Internal margins of antennal sockets with a small black spot. Fastigium verticis with 3 black spots, dorsum of head with 1 narrow obliquely longitudinal band on each side. Eyes black. Pronotum light brown with 3 pairs of small black spots and 1 pair of large black bands ( Fig. 6B ). Apical areas of all femora black, basal and apical areas of tibiae with black rings, the apical area slightly lighter. Tegmina brown. Measurements (mm). Female: BL 20.03, PL 4.45, TL 21.85, HFL 9.91, OvL 9.44.

Description. Male . Body small. Head. Face ovoid; fastigium verticis 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 narrow, extending beyond abdominal apex but not reaching apex of stretched hind tibia. Tegmen: R releases Rs behind the two-thirds base, both forked near apical area; MA releases MP behind the third base; CuA releases CuA1 and CuA2 behind 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. Abdomen. Ninth abdominal tergite globular, apical third narrow, divided into two lobes, their apico-lateral angles rounded, apical areas with a pair of elongate posterior processes, which curved dorso-proximad, narrowing, apices rounded ( Fig. 1D–F ). Cerci long conical, slightly incurved, apices acute. Subgenital plate broad and short, basal margin slightly concave, lateral margins slightly convex, posterior margin with a nearly V-shaped notch, lateral lobes relatively broad. Styli cylindrical, apices rounded, inserted on lateral margins of apical area of subgenital plate ( Fig. 1F ). Female. Appearance is similar to that of male. Seventh abdominal sternite subrectangular, posterior margin with a small process in the middle. Base of subgenital plate slightly broad, other area narrowing, with several transverse folds, posterior margin slightly concave ( Fig. 1G ). Ovipositor falcate, subbasal area stout, other area regularly upcurved and narrowing; tip subacute ( Fig. 1H ). Coloration. Body yellowish-brown. Fastigium verticis with 4 black spots, face with 8 black spots, occiput with 2 oblique black stripes, antenna brown ( Fig. 1A–C ). Eyes black ( Fig. 1A ). Disc of pronotum with 3 pairs of black spots ( Fig. 1B–C ). Tegmina and hind wings transparent, veins dark brown. Apical areas of femora black, basal and apical areas of tibiae blackish-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 black, apices of processes of ninth abdominal tergite black ( Fig. 1D–F ). Specimens examined. 1♂ , Jiucheng , Yingjiang , Yunnan , 20 May, 2025 , coll. Jie Su ; 1♀ , Yongde , Lincang , Yunnan , 1 July, 2025 , coll. Jie Su. Measurements (mm). Body: ♂ 18.6, ♀ 23.0; pronotum: ♂ 4.0, ♀ 4.5; tegmen: ♂ 19.5, ♀ 18.3; hind femur: ♂ 8.1, ♀ 8.1; ovipositor: 7.3.