A new species of the genus Mongolotettix Rehn, 1928 from Jiangxi, China (Acrididae, Acridoidea, Orthoptera) Author Zhang, Da-Peng 0000-0002-1349-8499 College of Forestry Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong, 250100, China lyzdp _ 1986 @ 126. com; https: // orcid. org / 0000 - 0002 - 1349 - 8499 lyzdp_1986@126.com Author Dai, Li 0000-0002-8944-5588 Shanghai Entomological Museum, Chinese Academy of Sciences, Shanghai, 200032, China daili@sibs.ac.cn Author Yin, Zhan 0000-0002-2755-1043 College of Life Sciences, Hebei University, Baoding, Hebei, 071002, China & College of Forestry Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong, 250100, China lyzdp _ 1986 @ 126. com; https: // orcid. org / 0000 - 0002 - 1349 - 8499 yinzhan@hbu.edu.cn text Zootaxa 2023 2023-09-27 5351 3 397 400 http://dx.doi.org/10.11646/zootaxa.5351.3.9 journal article 270508 10.11646/zootaxa.5351.3.9 83c2865e-3151-4b38-abd0-3086ea4d20b2 1175-5326 8391898 Mongolotettix jiangxiensis sp. nov. figs. A–K . Holotype ♁ , paratypes 1♁ , 2♀ , Jiangxi , Lushan 29º40´N , 115º70´E , 1935, July,7–18 collected by O. Piel. Male: Body small in size. Head shorter than pronotum. Face oblique in profile. Frontal ridge nearly parallel. Antennae ensiform, 20 segmented, extending distinctly over hind margin of pronotum. Eyes oval, vertical diameter 1.5 times horizontal diameter and 1.2 times length of subocular furrow. Pronotum median keel visible, distinctly cut by hind transverse sulcus, lateral keels almost parallel, prozona 1.4 times of metazona in length. Tegmina longer, reaching the hind margin of 9 th abdominal tergite, apically concave in the middle, maximum width of cubital area 1.5 times maximum width of medial area. Interspace of mesosternum distinctly narrowed in the middle, length of interspace of mesosternum 3.1 times minimum width. Lateral lobes of metasternum separated. Upper keel of hind femur smooth, length of hind femur 5.7 times its maximum width, end of lower knee lobes angular, inner side with 109 stridulatory pegs. Hind tibia with 12 spines on inner and outer sides, external apical spine absent. Second metatarsomere shorter than the first. Tympanum large and round. Cercus long conical, almost reaching tip of epiproct. Subgenital plate long conical. Upper margin of Epiphallus straight. Female: Body more robust than male. Vertical diameter of eyes 1.5 times horizontal diameter and 1.2 times the length of subocular furrow. Prozona 1.5 times metazoan in length. Tegmina short, reaching the hind margin of 1 st abdominal tergite, length 2.8 times its maximum width. Length of hind femur 5.5 times its maximum width. Cercus short-conical, not reaching end of epiproct. Upper ovipositor valve longer, length 3.3 times maximum width, with small teeth on outer margin. Coloration: Body brown. Antennae yellow. Pronotum yellowish-brown. Tegmina of male without a white stripe on the fore margin at base. Measurement (in mm): Length of body: ♁ 21.1–22.0, ♀ 34.6. Length of tegmina: ♁ 11.0–11.7, ♀ 4.7. Length of hind femur: ♁ 11.5–12.0, ♀ 17.3. FIGURES A–K. Mongolotettix jiangxiensis sp. nov. A. Body in lateral view ♁; B Mesosternum ♁; C. Tegmen ♁; Head frontal view J; D. Stridulatory pegs J; E. Epiphallus, J; F. End of abdomen in dorsal view ♁; G. Body in lateral view ♀ ; H. Head frontal view; I. Tegmen ♀ ; J. Mesosternum ♀ ; K. End of abdomen in latetral view ♀ . FIGURES L–O. M. hubeiensis Zheng et al , 2017 L. Body in lateral view ♁; M. Body in lateral view ♁; N. Mesosternum ♁; O. Epiphallus, J. Diagnosis. The new species is similar to M. hubeiensis Zheng et al , 2017 . The major differences are listed in Table 1. TABLE 1. Comparison of Mongolotettix jiangxiensis sp. nov. and M. hubeiensis Zheng et al , 2017 .

Characters	M. jiangxiensis sp. nov.	M. hubeiensis Zheng et al , 2017
Tegmina of male	Longer, reaching the hind margin of 9th abdominal tergite; maximum width of cubital area 1.5 times maximum width of medial area	Shorterer, reaching the hind margin of 7th abdominal tergite; maximum width of cubital area 1.9 times minimum width of medial area
Male	Length of interspace of mesosternum 3.1 times minimum width	Length of interspace of mesosternum 3.6 times minimum width
Epiphallus	Upper margin straight	Upper margin curved

Etymology The specific epithet is named for the type locality Jiangxi .