Bioacoustics of Gomphocerini

Morphological examination reveals key diagnostic characters that unequivocally place the new genus within the subfamily Gomphocerinae Fieber, 1853 . In the lateral aspect, the fastigium is consistently inclined towards the body, forming an acute angle with the vertex, and the fastigium narrows sharply into the vertex apex. The frontal fossae are typically quadrangular or rhomboidal in shape, occasionally reduced or absent. The interlobar notch between the metasternum lobes of the first abdominal segment is narrow and elongated, while in females of large-bodied specimens it is broadly square to semicircular. The hind wings are hyaline, sometimes slightly infuscate, and often pale or entirely transparent. The medial area of the tegmina exhibits the absence of the false vein or its presence as a curved lateral vein. The inner surface of the hind femur bears movable tubercles and spines (stridulatory teeth), which is a characteristic stridulatory apparatus of the subfamily. These morphological features collectively confirm the taxonomic placement of the new genus within Gomphocerinae . The new genus belongs to Gomphocerini Fieber, 1853 because; Antennae with 23 segments that are club-like and widened apically; they surpass the hind margin of paranota by nearly 1/5 of their length in male, whereas in female they are less widened. Ratio of least width of vertex: length of the eyes in male 2.64–3.16, in female 2.0–3.0; foveolae distinct, curved, and narrowed apically. The side of the pronotum is angularly incurved, the discus is hump-backed, and the sulcus runs from the middle of the 6th to the end of the 7th tenth of the total length of the pronotum. Prozona often with a very small wart; tegmina brachypterous; the ratio of the alae length/tegmina length in normal position is nearly 2/5–2/4 as long. The opening of the tympanal organ in males is 1.8–2.75 times and in females 2.33–2.75 times as long as it is wide in the middle. In males, the 107th tergum triangularly shield-shaped; in females, the epiproct is oval. In males, cerci are weakly conical, 1.6–2.2 times as long as wide in males and 1.8–2.3 in females. The apical part of the male subgenital plate is conical, the hind margin of the female subgenital plate is triangularly rounded, and the subgenital plate is recessed posteriorly in the middle. Epiphallus with wide lateral lobes, apical valves of the penis shorter than cingular valves. Postfemora 3.52–4.20 times as long as high in males and 3.8–4.30 (4.55) in females. Post tibia yellowish to reddish, with 11 spines on the outside dorsally and 11 spines and 1 apical spine on the inside dorsally; arolium about ½ shorter than the claws ( Harz, 1975 ). The tribe Gomphocerini Fieber, 1853 includes following genera distributed in Eurasia, Noth Africa and America (Cigliano et.al . 2025): Aeropedellus Hebard, 1935 , Bruneria McNeill, 1897 , Chorthippus Fieber, 1852 (containing other two subgenera other than Chorthippus , namely: Altichorthippus Jago, 1971 , Glyptobothrus Chopard, 1951 ), Dasyhippus Uvarov, 1930 , Gomphoceridius Bolivar, 1914 , Gomphocerippus Roberts, 1941 , Gomphoceroides Zheng, Xi & Lian, 1992 , Gomphocerus Thunberg, 1815 , Mesasippus Tarbinsky, 1931 , Myrmeleotettix Bolivar, 1914 , Pezohippus Bey-Bienko, 1948 , Phlibostroma Scudder, 1875 , Pseudochorthippus Defaut, 2012 , Schmitiacris Storozhenko, 2002, Stauroderus Bolivar, 1897 , and Stenobothroides Xu&Zheng, 1996 .