Bioacoustics of Atlanticus (Sinpacificus) kangi

( Fig. 3V ; 4U ; 5B ; 6B ; 8J, K ; 10B ) Holotype . Male , China : Guangxi Prov. , Maoershan , Jiuniutang , 2006.VI.7 , Coll. Liu Chunxiang. Paratypes . 2 males , same data as in holotype ; China : Guangxi Prov. , Maoershan , Jiuniutang , 1 female [IOZ(E)361512], 1100m , 1985.VII.12 , Coll. Fang Chenglai; 1 male , 1 female , same data as in holotype , but 2006.VII.7. Diagnosis. Large-sized compared to the congeners, but slightly smaller than A. ( S. ) magnificus Tinkham ( Fig. 8J, K ; 10B ). Male tegmen amplified, broadened, deepened, extending to the eighth abdominal tergum, with clear longitudinal and cross veins; flat dorsal and lateral planes at right angles to each other; lateral plane deepest in apical quarter ( Fig. 8J ; 10B ). Male cercus of moderate length, robust, heavy of equal width to a subapical internal tooth situated in upper surface in apical one third, and then strongly constricted and gently incurved with a bluntly pointed tooth ( Fig. 3V ). Description. Holotype . Male. Disc of prozona slightly convex, and metazona approximately flat. Pronotum narrowest in proximal quarter, and then gradually ampliate caudad. Lateral lobes of pronotum deepest at middle; anterior margin very slightly concave, posterior margin oblique with a very indistinct central concavity, ventral margin aslant caudad to posterior angle. Tegmen with radial vein branching out two stems in apical half, median vein similar to that of A. ( S. ) magnificus . Stridulatory file of left tegmen with 110 distinct teeth gradually becoming larger centrad ( Fig. 5B ). Length of mirror ( Fig. 6B ) on right tegmen wider than long, and secondary mirror longer than mirror [Mirror length and width ( 3.5mm , 4.5mm ); greatest width of secondary mirror ( 7mm ); smallest width of secondary mirror ( 5 mm )]. Fore femora without spines. Middle femur with 1 external ventral spine in apical half. Hind femur with 2 exterior and 5 interior spines on ventral margins. Fore tibia with 3 dorsal spines on exterior margin and 6 ventral spines on both margins. Middle tibia with 6 ventral spines on both margins, 2 exterior and 4 interior spines on dorsal margins. Hind tibia with 20 exterior and 18 interior spines on dorsal margins. Ninth abdominal tergum with a minute “U”-shaped central notch. Tenth abdominal tergum with a large central “U”- shaped cleft ( Fig. 4U ). Subgenital plate with a wide “U”-shaped notch between styli, notch slightly shorter than stylus ( Fig. 11U ). Female ( Fig. 8K ). Tenth abdominal tergum with a central “U”-shaped notch. Cercus conical, with obtuse apex. Ovipositor long, straight, apical one third recurved, with apex obliquely truncate. Subgenital plate distinctly transverse, emarginate in apical half, forming two obtuse triangular lateral lobes. Coloration. Overall color reddish dark brown. Outer surface of two basal antennal segments, segments, fastigium frontis, front and lateral surfaces of fastigium verticis, postocular fascia shining black. Disc of pronotum dark brown; parallelogram-shaped area composed of ventral margin and ventral two thirds of posterior margin in lateral lobes extending upwards to almost touch lateral carinae yellowish brown, remainder below lateral carinae shining blackish brown. Fore femora, posterior and ventral surfaces of fore tibiae, fore tarsus blackish brown. Pale brown median femora with a row of dark brown dots on upper one third of anterior surface, and two rows of dark brown spots on posterior surface; pale brown median tibia with a row of dark brown dots on upper half of anterior surface, blackish posterior surface and brown dorsal surface. A robust dark brown line with indefinite striation separated the upper half from the lower half on posterior surface of hind femora. Tegmen reddish brown. Both lateral margins of visible abdominal tergite with with black striation. Abdominal sternites bright yellow. Notes. The species is put into the Magnificus Group in Tinkham (1941) , due to large, broad and deep tegmina of male, and very long and practically straight ovipositor. It differs from A. magnificus , by possessing a comparatively narrow and elongate pronotum, comparatively narrow and short tegmen, comparatively small average mirror, comparatively short secondary mirror [ Atlanticus magnificus : Mirror length and width ( 3.5mm , 5mm ); greatest width of secondary mirror ( 8mm ); smallest width of secondary mirror ( 7mm )], and structure of male tenth abdominal tergum and male cerci. The new species resembles A (S.) kwangtungensis Tinkham and A. (S.) hoffmanni Tinkham in Palpalis Group with similar male cerci, but distinctly differs in the shape of male tegmen. It also differs from A. (S.) hoffmanni by much longer ovipositor. It differs from A. (S.) palpalis Rehn & Hebard in the Palpalis Group by the shape of male tegmen, male cerci and much longer ovipositor. Etymology. The new species is in honor of Dr. Le Kang for his great contribution to the entomology. Distribution. China ( Guangxi ).