Biogeographical and evolutionary aspects of a Guineo-Congolian bushcricket tribe: Revision of the genera Cestromoecha Karsch, 1893 and Poreuomena Brunner von Wattenwyl, 1878, with the description of new species (Orthoptera, Tettigoniidae, Phaneropterinae)

IF 1.3 3区农林科学 Q2 ENTOMOLOGY Deutsche Entomologische Zeitschrift Pub Date : 2021-01-05 DOI:10.3897/dez.68.60193

C. Hemp, B. Massa

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引用次数: 2

Abstract

The genera Cestromoecha and Poreuomena of the tribe Poreuomenini in Phaneropterinae are revised and new generic characters are given for both genera, and six new species are described in Poreuomena. The newly described species are P. biaculeata sp. nov., P. eala sp. nov., P. gracilicercata sp. nov., P. ivoriana sp. nov., P. matthaei sp. nov., and P. tshuapa sp. nov. Based on characters defining the two genera, three species so far listed under Cestromoecha are transferred to Poreuomena: P. crassipes Karsch, 1890, P. laeglae (Massa, 2015), and P. magnicerca (Massa, 2013). One species of Cestromoecha, C. mundamensis Karsch, 1896, is synonymised with C. tenuipes (Karsch, 1890) since no morphological differences were detected between the type specimens. Thus, two species remain with Cestromoecha, and Poreuomena now contains 16 species. Morphological closely-related species of Poreuomena suggest rapid speciation in the Congo Basin due to several expansions and shrinkages of the Guineo-Congolian forest belt since the Oligocene. At least two different morphological lineages are discernible. On the other hand the genus Cestromoecha Karsch, 1893 is a species-poor taxon.

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几内亚-刚果丛林蟋蟀部落的生物地理学和进化方面:修正Cestromoecha Karsch属(1893)和poreomena Brunner von Wattenwyl属(1878)，并附新种描述(直翅目，蚱科，隐翅目)

对鞘翅目Poreumenini族的Cestromocha属和Poreumena属进行了修订，并给出了这两个属的新属性特征，并在Poreomena中描述了6个新种。新描述的物种是P.biaculeta sp.nov.、P.eala sp.nov..、P.graciliceccata sp.nov.%、P.ivoriana sp.nev.%、P.matthaei sp.nov.\和P.tshuapa sp.nov。根据定义这两个属的特征，迄今为止在Cestromocha下列出的三个物种被转移到了Poreumena：P.crassipes Karsch，1890，P.laeglae（马萨，2015）和P.magnicerca（马萨，2013）。Cestromocha的一个物种，C.mundamensis Karsch，1896，与C.tenipes（Karsch）同义，因为在模式标本之间没有检测到形态差异。因此，Cestromocha还剩下两个物种，Poreumena现在有16个物种。Poreuomena的形态密切相关物种表明，由于渐新世以来几内亚-刚果林带的几次扩张和收缩，刚果盆地的物种形成迅速。至少可以辨别出两种不同的形态谱系。另一方面，Cestromocha Karsch属，1893年是一个物种贫乏的分类单元。

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来源期刊

Deutsche Entomologische Zeitschrift 生物-昆虫学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Founded in 1857 as Berliner Entomologische Zeitschrift, Deutsche Entomologische Zeitschrift is one of the World''s oldest international journals of systematic entomology. It publishes original research papers in English on the systematics, taxonomy, phylogeny, comparative morphology, and biogeography of insects. Other arthropods are also considered where of relevance to the biology of insects. The geographical scope of the journal is worldwide. Deutsche Entomologische Zeitschrift (DEZ) is dedicated to provide an open access, high-quality forum to contribute to the documentation of insect species, their distribution, their properties, and their phylogenetic relationships. All submitted manuscripts are subject to peer-review by the leading specialists for the respective topic. The journal is published in open access high-resolution PDF, semantically enriched HTML and machine-readable XML versions.