Mongolotettix daqingshanensis, Yin, 2017

Yin, Zhan, 2017, A new species of the genus Mongolotettix Rehn, 1928 from Inner Mongolia, China (Acrididae, Acridoidea, Orthoptera), Zootaxa 4319 (2), pp. 368-370 : 368

Mongolotettix daqingshanensis sp. nov. (Figs. a–k)

Holotype ♂, paratypes 2♂, 3♀, China, Inner Mongolia, Daqingshan 40°58´N, 111°30´E, 2016-7-13, collected by Li Weimin, Yin Zhan and Dang Yan .

Male Body small in size. Head shorter than pronotum. Face oblique in profile. Frontal ridge widened downward gradually. Antennae ensiform, 20 segmented, extending slightly over hind margin of pronotum. Eyes oval, vertical diameter 1.2 times horizontal diameter and length of subocular furrow. Pronotum median keel visible, distinctly cut by hind transverse sulcus, lateral keels almost parallel, prozona 1.5 times of metazona in length. Tegmina longer, almost reaching the end of epiproct, apically concave in the middle, maximum width of cubital area 2.2 times minimum width of medial area. Interspace of mesosternum slightly narrowed in the middle, length 2.0 times minimum width. Lateral lobes of metasternum separated. Upper keel of hind femur smooth, length of hind femur 6.1 times its maximum width, end of lower knee lobes angular, inner side with 96 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. Furculae large, circular at apex. Cercus long conical, almost reaching tip of epiproct. Subgenital plate conical, length 1.4 times width. Width of epiphallus larger than high.

Female Body more robust than male. Vertical diameter of eyes 1.6 times horizontal diameter and 1.2 times the length of subocular furrow. Prozona 1.6 times metazoan in length. Tegmina short, reaching the hindmargin of first abdominal tergite, length 3.1 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 3.4 times maximum width, with teeth on outer margin.

Coloration: Body brown. Antennae yellow. Pronotum yellowish-brown. Tegmina of male with a white stripe on the fore margin at base. Tegmina of female with a dark brown longitudinal stripe in the middle. Abdomen yellowish-brown, with a broad dark brown longitudinal stripe on both sides. Subgenital plate brown.

Measurement (in mm): Length of body: ♂ 15.3–17.8, ♀ 26.0–27.3. Length of tegmina: ♂ 7.4–9.0, ♀ 3.8–4.2. Length of hind femur: ♂ 9.3–9.6, ♀ 11.0–12.2.

Diagnosis. The new species is similar to M. angustiseptus Wan, Ren et Zhang, 1998 . The major differences are listed in Table 1.