Mitochondrial phylogenomics of pygmy grasshoppers (Orthoptera, Tetrigidae, Metrodorinae): descriptions of a new genus, two new species, and new synonyms from China.

IF 1.3 3区生物学 Q2 ZOOLOGY

ZooKeys Pub Date : 2025-05-05 eCollection Date: 2025-01-01 DOI:10.3897/zookeys.1236.145914

Yuemei Li, Shixiong Leng, Jiasong He, Weian Deng, Delong Guan

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引用次数: 0

Abstract

The Chinese wingless brachypronotal pygmy grasshoppers of the subfamily Metrodorinae have often been classified within the genus Macromotettixoides. In this study, two undescribed species of wingless brachypronotal pygmy grasshoppers belonging to Metrodorinae were collected. To elucidate their taxonomic positions, the complete mitochondrial genomes of these two species were sequenced and analyzed. Phylogenetic analyses were conducted using 13 protein-coding genes (PCGs) from 28 tetrigid mitogenomes. Genetic distances and divergence times were estimated. Our results indicate that one species represents a new genus within Metrodorinae, while the other is a new species of Macromotettixoides. Consequently, a new genus and two new species of Metrodolrinae from China are described and illustrated: Edentatettix Deng, gen. nov. containing Edentatettixleyeensis Deng, sp. nov., and Macromotettixoidesyaana Deng, sp. nov. Additionally, five new synonyms are proposed: Hainantettixangustivertex (Zha & Peng, 2021), syn. nov. and Macromotettixoidesangustivertex Zha & Peng, 2021, syn. nov. of Hainantettixstrictivertex Deng, 2020; Hyboellabadagongshanensis Zheng, 2013, syn. nov., Macromotettixoidesbadagongshanensis (Zheng, 2013), syn. nov., and Macromotettixoideswuyishana Zheng, 2013, syn. nov. of Macromotettixoidesjiuwanshanensis Zheng, Wei & Jiang, 2005. For the first time, edentate ovipositors constituting an important taxonomic character within Tetrigidae is reported and discussed.

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Mitochondrial矮蚱蜢（直翅目，蚱科，蚱科）的系统基因组学：中国一新属、二新种和新近义词的描述。

中国无翅短头小蚱蜢亚科的小蚱蜢常被归入大蚱蜢属。本研究收集了两种未描述的无翅短头侏儒蚱蜢，隶属于土足蝗科。为了阐明它们的分类位置，我们对这两个物种的线粒体全基因组进行了测序和分析。利用28个四分体有丝分裂基因组中的13个蛋白质编码基因（PCGs）进行了系统发育分析。估计遗传距离和分化时间。结果表明，其中一种代表了蝇蛆科的新属，另一种代表了大蝇蛆科的新种。因此，本文描述并说明了中国Metrodolrinae的一个新属和两个新种：edentatettitixleyeensis Deng， sp. nov.和Macromotettixoidesyaana Deng， sp. nov.。此外，还提出了5个新同义词：Hainantettixangustivertex (Zha & Peng, 2021), syn11 .和Macromotettixoidesangustivertex zh&peng， 2021, syn11 . of Hainantettixstrictivertex Deng, 2020；郑，2013,11月，八大公山（郑，2013），11月，郑，2013，九万山（郑，2013），郑，2013，九万山（郑，维，江），11月，郑，2005。本文首次报道并讨论了在蚱科中具有重要分类特征的有齿产卵者。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ZooKeys 生物-动物学

CiteScore

2.70

自引率

15.40%

发文量

400

审稿时长

3 months

期刊介绍： ZooKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic zoology, phylogeny and biogeography. All papers can be freely copied, downloaded, printed and distributed at no charge. Authors and readers are thus encouraged to post the pdf files of published papers on homepages or elsewhere to expedite distribution. There is no charge for color.

﻿Mitochondrial phylogenomics of pygmy grasshoppers (Orthoptera, Tetrigidae, Metrodorinae): descriptions of a new genus, two new species, and new synonyms from China.

Abstract

Mitochondrial phylogenomics of pygmy grasshoppers (Orthoptera, Tetrigidae, Metrodorinae): descriptions of a new genus, two new species, and new synonyms from China.