Bioacoustics of Kansua

Redescription. Distinct first transverse sulcus, lying in one fifth of disc of pronotum; second transverse sulcus “U”-shaped, lying slightly before the middle. Lateral margins of disc of pronotum and lateral lobes of pronotum distinctly wrinkled. Fore and middle tibiae dorsally with a subapical spine only on one side, exterior in fore tibiae and interior in middle ones. Male. Tegmen mesopterous, surpassing tip of abdomen ( Figs. 1 E, F, H, 2A, E, H). Stridulatory apparatus enlarged. Stridulatory file arched, lying on raised swelling, only with large regular stridulatory teeth in middle ( Fig. 3 A). Mirror large. Secondary mirror distinct, large (Fig. 4A). Tenth abdominal tergum deeply divided, with two lobes overlapping at apex (Fig. 5A). Cerci moderately long, with one approximately middle inner tooth and one apical incurved spine (Fig. 5E). Subgenital plate elongate, with distinct styli (Fig. 5K). Male titillator with a pair of sclerotised “L”-shaped arms, which possess inflated smooth horizontal projection, and toothed slender elongate projection (Fig. 5I ). Notes. The genus most resembles Anatlanticus and Mongolodectes in the slightly produced posterior margin of pronotal disc, fore and middle tibiae only possessing one dorsal apical spine, fore femur longer than pronotum, reduced and expanded elytra, and the female deflexed ovipositor, although distinctly differs by the texture of prozona of pronotum. Moreover, Kansua and Paratlanticus share some morphological characteristics, including pronotum shorter than anterior tibiae, approximately flat caudal margin of pronotum, brachypterous tegmen, and decurved ovipositor. Consequently, the morphological similarity supports that Kansua might belong the same tribe that Anatlanticus , Mongolodectes and Paratlanticus currently belong to. Included species. Kansua hummeli Uvarov , and Kansua diebua , sp. n. .