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      A taxonomic study of the genus Panesthia (Blattodea, Blaberidae, Panesthiinae) from China with descriptions of one new species, one new subspecies and the male of Panesthia antennata

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      1 , 1 , 1
      ZooKeys
      Pensoft Publishers
      Wing polymorphism, brachypterism, illustration, key, Salganea

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          Abstract

          Abstract

          One new species Panesthia guizhouensis sp. n. and one new subspecies Panesthia stellata concava ssp. n. are described and illustrated. The male of Panesthia antennata Brunner von Wattenwyl, 1893 and its brachypterous form are described and illustrated for the first time. Panesthia strelkovi Bey-Bienko, 1969 is redescribed and illustrated. Three known species, Panesthia birmanica Brunner von Wattenwyl, 1893, Panesthia sinuata Saussure, 1839 and Panesthia angustipennis cognata Bey-Bienko, 1969 are illustrated. In addition, a key to all species of the genus Panesthia from China is presented.

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          Molecular phylogeny and geographic distribution of wood-feeding cockroaches in East Asian Islands.

          Molecular phylogenetic relationships of the wood-feeding cockroach genera Salganea and Panesthia (Blaberidae; Panesthiinae) in East Asian Islands (Ryukyu archipelago and Taiwan Island) were analyzed based on the DNA sequence of the complete mitochondrial cytochrome oxidase II gene. Unweighted parsimony analysis resulted in high bootstrap support for relationships within Panesthia taxa; however, some nodes were unresolved between members of Salganea. Comparison of the number of transitions and transversions with genetic distance at each codon position suggested that saturation of third-codon substitutions has occurred between certain pairs of taxa. Consequently, differential weighting of substitutions at these sites was performed, which resulted in a substantial increase in resolution of Salganea relationships. The inferred phylogenies for both genera displayed good correspondence to the geographical locations of populations but however did not agree with previous subspecies designations based on morphological characters. It appears that both cockroach genera invaded the Ryukyu archipelago from the Taiwan region via a land-bridge present in the Miocene period. Invasion of the main islands of Japan by these cockroaches most likely occurred before the formation of the Tokara Tectonic Strait. Our study suggests that several barriers to gene flow have arisen and persisted over the past approximately 10 million years, which have caused segregation and vicariant speciation of the cockroach taxa of this region. Copyright 1999 Academic Press.
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            Revision of the genus Salganea Stål (Blattodea, Blaberidae, Panesthiinae) from China, with descriptions of three new species

            Abstract Three new species of Salganea Stål, 1877 are described and illustrated: S. quinquedentata sp. n., S. anisodonta sp. n. and S. flexibilis sp. n. S. taiwanensis Roth, 1979, S. guangxiensis (Feng & Woo, 1990), S. incerta (Brunner von Wattenwyl, 1893) and S. raggei Roth, 1979 are redescribed. Panesthia concinna Feng & Woo, 1990 is synonymized with S. taiwanensis Roth, 1979 and Panesthia guangxiensis Feng & Woo, 1990 is transferred to the genus Salganea for the first time. As well, a key to species from China is presented.
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              Author and article information

              Journal
              Zookeys
              Zookeys
              ZooKeys
              ZooKeys
              Pensoft Publishers
              1313-2989
              1313-2970
              2014
              19 December 2014
              : 466
              : 53-75
              Affiliations
              [1 ]Institute of Entomology, College of Plant Protection, Southwest University, Beibei, Chongqing 400716, China
              Author notes
              Corresponding author: Yanli Che ( shirleyche2000@ 123456126.com )

              Academic editor: G. Svenson

              Article
              10.3897/zookeys.466.8111
              4296483
              930d2a0c-2f6f-47c0-99a2-8e7ee2bfb592
              Xiudan Wang, Zongqing Wang, Yanli Che

              This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

              History
              : 15 June 2014
              : 5 December 2014
              Categories
              Research Article

              Animal science & Zoology
              wing polymorphism,brachypterism,illustration,key,salganea,animalia,blattodea,blaberidae

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