Bioacoustics of Peracca (Peracca) conspicuithorax

Description. Habitus of male as shown in Fig. 6 A. Fastigium verticis surpassing apex of scapus; dorsally with apex acute. Frons subrugose, rarely shining with few impressed dots. Pronotum subrugose, disc broadly rounded into paranota; with swollen area of paranota with ventral margin almost curved mediad and posterior margin with rim broadened as seen from behind ( Figs. 6 B–C). Tegmen in male micropterous, reduced to stridulatory apparatus, covered by pronotum; female squamipterous. Prosternal spines of medium length. Femora with the following number of spines on ventral margins: profemur 6 (nearly regularly sized) external, 4 (plus 3 minute ones) internal; mesofemur 5 (plus 1 minute basally, 2 minute ones between each of the three most apical spines) external, 3 (plus 1 minute basally) internal; postfemur 11 external, 11 internal (n = 1, holotype ). Knee lobes of pro- and mesofemur obtuse (subacute for mesofemur) externally and spinose internally; of postfemur spinose on both sides, longer than those of pro- and mesofemur. Male. Tenth abdominal tergite with apico-lateral margin concave and middle of apex emarginated, furrowed along middle, curved ventrad, strongly setose particularly at the distal half ( Fig. 6 D). Cercus short-globose at base, with a large, faintly sinuate dorso-internal projection with acute apex; thereafter bent ventrad and internally strongly (near 90 °, n = 1, holotype ), distinctly sinuate, internal surface flattened, apical area laterally compressed with apex broadly rounded; behind middle of cercus with a branch which is compressed, strongly curved and terminating and bifurcating to two subacute apices ( Figs. 6 D–E). Subgenital plate with disc subflat and with a medial carinula; in apical area excavated, apical margin substraight; styli short with rounded apex ( Fig. 6 F). Female. Tenth abdominal tergite with apex deeply triangularly incised ( Figs. 6 G–H). Epiproct triangular. Cerci with apex pointing ( Fig. 6 G). Subgenital plate wider than long, furrowed in middle; apex truncated and notched in middle ( Figs. 6 I–K). Ovipositor dagger shaped; with substraight basal and gently curved apical area; apical area with dorsal margin straight, ventral margin gently curved; margins smooth ( Fig. 6 L). Colouration. Generally testaceous. Frons, mandibles, labrum, dorsal part of clypeus and ventral surface of scapus and pedicellus dark brown to black; ventral part of clypeus pale yellow; palpi pale yellow with some tint of green; vertex and genae brown, sometimes with a tint of green. Pronotum red brown with some tint of green, anterior margin black, with two small pale white spots, apical area of disc with two cuneiform white spots, with very small black spots between the two white spots along the posterior margin; area in between and paranota generally brown. Abdomen testaceous to brown with light dots; with medial small black spots on posterior margin of each tergite. Thoracic sterna brown to black with pale margins; abdominal sternites brown with light dots. Pro- and mesofemur brown to red brown with pale marmoration; postfemur with basal half brown to red brown with pale marmoration, distal half pale yellow, then green; knees black. Tibiae generally green. Tegmen with light veins and veinlets, without dark cells. Measurements ( 1 male , 2 females ). See Table 3 .