A new Upper Carboniferous stem-orthopteran （Insecta） from Ningxia （China）

During the Upper Carboniferous, orthopteran insects （grasshoppers, katydids, and crickets） were represented by numerous species distantly related to crown-orthopterans, such as lobeattid and cnemidolestodean insects. The panorthopterans, including total- orthopterans and their closest relatives, are...

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Published in中国昆虫科学：英文版 Vol. 19; no. 2; pp. 153 - 158
Main Author Olivier Bethoux Jun-Jie Gu Dong Ren
Format Journal Article
LanguageEnglish
Published 2012
Subjects
上石炭统
中国
分枝格局
媒体
宁夏回族自治区
昆虫纲
组成
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Summary:During the Upper Carboniferous, orthopteran insects （grasshoppers, katydids, and crickets） were represented by numerous species distantly related to crown-orthopterans, such as lobeattid and cnemidolestodean insects. The panorthopterans, including total- orthopterans and their closest relatives, are represented by comparatively rarer species in localities of this period. Here we describe Heterologus duyiwuer sp. nov., an infrequent panorthopteran from the Late Carboniferous locality of Xiaheyan Village （Zhongwei City, Ningxia Hui Autonomous Region, China）. The only available specimen is composed of an isolated forewing exhibiting a combination of character states previously unknown, in particular the lack of posterior radius （RP） / anterior Media （MA） connection, late branchings of the media （M） and anterior cubitus （CuA）, and a branched posterior branch of the posterior cubitus （CuPb）. Based on its unusual branching pattern, the composite stem resulting from the fusion of CuA and CuPaa （second anterior branch of CuP） is assumed to be composed of a branched CuA and a simple CuPaa.
Bibliography:Archaeorthoptera, homology, Namurian, stem-orthopterans, Tupo Formation
11-3386/Q
During the Upper Carboniferous, orthopteran insects （grasshoppers, katydids, and crickets） were represented by numerous species distantly related to crown-orthopterans, such as lobeattid and cnemidolestodean insects. The panorthopterans, including total- orthopterans and their closest relatives, are represented by comparatively rarer species in localities of this period. Here we describe Heterologus duyiwuer sp. nov., an infrequent panorthopteran from the Late Carboniferous locality of Xiaheyan Village （Zhongwei City, Ningxia Hui Autonomous Region, China）. The only available specimen is composed of an isolated forewing exhibiting a combination of character states previously unknown, in particular the lack of posterior radius （RP） / anterior Media （MA） connection, late branchings of the media （M） and anterior cubitus （CuA）, and a branched posterior branch of the posterior cubitus （CuPb）. Based on its unusual branching pattern, the composite stem resulting from the fusion of CuA and CuPaa （second anterior branch of CuP） is assumed to be composed of a branched CuA and a simple CuPaa.
ISSN:1672-9609
1744-7917