Descriptions on two new species of the genus Macromotettixoides (Orthoptera: Tetrigidae: Metrodorinae ) from China.

Two new species Macromotettixoides amplifronta sp. nov. and M. yingjiangensis sp. nov. from Yunnan, are described and illustrated with photographs. An updated key to species of the genus Macromotettixoides is provided.

A review of Caryanda viridis- species group (Orthoptera: Acrididae) with a new species.

A new species of Caryanda viridis- species group, i.e. Caryanda biserrata Mao et Yin sp. nov. is described and illustrated. C. xinpingensis Mao, 2017 is included into C. viridis- species group, and C. viridoides Mao, Ren & Ou, 2011 is removed from it. C. viridis- species group presently contains six species: C. viridis (Zheng & Mao, 1996), C. dehongensis Mao, Xu & Yang, 2003, C. albomaculata Mao, Ren & Ou, 2007, C. eshana Mao, 2015, C. xinpingensis Mao, 2017 and C. biserrata Mao et Yin sp. nov.. The key to the six species of C. viridis- species group is updatad.

Taxonomy on three allied genera within Arcypterini (Orthoptera: Acrididae) from Qinghai-Xizang Plateau, China.

The generic diagnosis of three allied genera, Leuconemacris Zheng, 1988, Asulconotoides Liu, 1984 and Asulconotus Ying, 1974, are compared and redescribed. Four new species, Leuconemacris acuminata, sp. nov., L. xinlongensis, sp. nov., L. muliensis, sp. nov. and Asulconotus acarinatus, sp. nov. are described and illustrated. Two new combinations are established: Asulconotoides asulcata (Zheng, 1988) comb. nov. = Leuconemacris asulcata Zheng, 1988 and Asulconotoides microptera (Zheng, 1988), comb. nov. = Leuconemacris microptera Zheng, 1988. All updated keys to genera and species are given.

Taxonomic revision of Phaesticus Uvarov and synonymy with Flatocerus Liang amp; Zheng syn. nov. (Orthoptera: Tetrigidae).

The genus Phaesticus Uvarov, 1940 is revised here with updated generic characteristics and a key to the species. New synonyms and a new combination are proposed: 1) Phaesticus Uvarov, 1940 = Flatocerus Liang Zheng, 1984 syn. nov.; 2) P. mellerborgi (Stål, 1855) = P. insularis (Hancock, 1907) syn. nov., = P. carinatus Zheng, 1998 syn. nov., = P. azemii Mahmood, Idris Salmah, 2007 syn. nov., = F. brachynotus Liang, Chen Chen, 2008 syn. nov., = P. uvarovi Storozhenko Dawwrueng, 2015 syn. nov.; 3) P. moniliantennatus (Günther, 1940) = F. nankunshanensis Liang Zheng, 1984 syn. nov., = F. wuyishanensis Zheng, 1991 syn. nov., = F. guizhouensis Wang, 1992 syn. nov., = F. daqingshanensis Zheng Jiang, 1998 syn. nov., = F. dentifemura Zheng, 2003 syn. nov.; 4) P. hainanensis (Liang, 1988) comb. nov. = F. hainanensis Liang, 1988. Intraspecific variation in the lengths of the hind pronotal processes and hind wings in the family Tetrigidae are discussed in detail.

Taxonomic review of the genus Assamacris (Orthoptera: Acrididae: Catantopinae) with a new species and a newly discovered female.

Taxonomic review of the genus Assamacris Uvarov, 1942 is given. The genus Traulitonkinacris You Bi, 1983 is synonymized with Assamacris. Traulitonkinacris bifurcatus You Bi, 1983 is transferred to Assamacris as a new combination. Assamacris splendida sp. nov. is described as new species. A newly discovered female of A. curticerca (Huang, 1981) is introduced. A key to the species is updated.

A new species of the genus Tuberfemurus (Orthoptera: Tetrigoidea: Cladonotinae) with comments on the characters of mitochondrial genome.

A new species, Tuberfemurus viridulus sp. nov. is described and illustrated with photographs. The new species is similar to T. torulisinotus Deng, 2019, but differs from the latter by broader vertex, invisible frontal costa in profile, distinctly truncate apex of hind pronotal process, and two large triangular projections on lower outer carinae of hind femur. An updated key to species of Tuberfemurus is provided. Simultaneously, the complete mitochondrial genome of Tuberfemurus viridulus sp. nov. is sequenced and analyzed. The total length of the assembled mitogenome is 15,060 bp with 37 typical mitochondrial genes and a non-coding region (A + T-rich region). The order and orientation of the gene arrangement pattern are identical to that of most Tetrigoidea species. All PCGs initiate with the standard start codon of ATN, except ATP6 with GAC and ND1 with TTG; and terminate with the complete stop codon (TAA/TAG) or with an incomplete T- codon. This data could provide the genome information available for Tetrigoidea and facilitate phylogenetic studies of related insects.

A taxonomic study of the genus Macromotettixoides (Tetrigidae, Metrodorinae) with descriptions of two new species and two newly discovered males.

Fifteen species of Macromotettixoides are systematically researched in this paper. Two new species (M. tuberculata Mao, Li Han, sp. n. and M. truncata Mao, Li Han, sp. n.) and two newly discovered males (M. curvimarginus (Zheng Xu) and M. longling Deng) are introduced with descriptions and illustrations. An updated identification key to all known species of the genus is given.

Characterization of the complete mitochondrial genome of the Yunnan endemic grasshopper Longchuanacris curvifurculus (Insecta: Orthoptera: Catantopidae).

Longchuanacris curvifurculus (L. curvifurculus) was once a dominating grasshopper in the Yunnan province (People's Republic of China) that occupy important ecological niche. However, its population has severely declined because of the deterioration of ecological environment. Identifying the species and source of L. curvifurculus is important for biodiversity conservation and ecological/environmental preservation. In the study, the complete mitochondrial genome of L. curvifurculus was assembled from high-coverage (36.8×) Illumina MiSeq sequencing data. The circular genome is 15,450 bp in length, harboring 37 typical mitochondrial genes and one control region. The nucleotide composition is asymmetric (43.0% A, 14.3% C, 10.5% G, and 32.2% T), with an overall A + T content of 75.2%. All the protein-coding genes (PCGs) are initiated with typical ATN start codons and terminated by the typical TAA codons or the incomplete T(aa) codon. The control region has a remarkably high A + T content (84.9%) and is located between genes rrnS and trnV.

Review of the genus Qinshuiacris (Orthoptera: Acrididae) from China with proposal of Caryanda viridis-species group and description of a new species.

Based on an examination of type and additional material, Qinshuiacris viridis Zheng & Mao, 1996 and some allied species in the genus Caryanda are reviewed. Q. viridis Zheng & Mao, 1996 is transferred to Caryanda as a new combination: C. viridis (Zheng & Mao, 1996) comb. nov.. The female of C. viridis is described for the first time and sixty-two topotypes are designated. The genus Qinshuiacris Zheng & Mao, 1996 is synonymized with Caryanda Stål, 1878 because of the transfer of the type species. C. yini Mao & Ren, 2006 is proposed as a new junior synonym of C. dehongensis Mao, Xu & Yang, 2003. A new species, C. eshana Mao sp. nov., is also described and illustrated. Additionally, the conception of the Caryanda viridis-species group is proposed to contain the four allied species with falciform cerci: C. albomaculata Mao, Ren & Ou, 2007, C. dehongensis Mao, Xu & Yang, 2003, C. eshana Mao sp. nov., and C. viridis (Zheng & Mao, 1996) comb. nov.. A key to the species of C. viridis-species group is provided. Type specimens are deposited in the Biological Science Museum, Dali University (BMDU), Yunnan Province, China, in the Institute of Zoology, Shaanxi Normal University (IZSNU), Shaanxi Province, China and in the Institute of Zoology, Chinese Academy of Sciences, Beijing, China (IZCAS).