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      A new species of the genus Cerapanorpa (Mecoptera, Panorpidae) from the eastern Bashan Mountains

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      Biodiversity Data Journal

      Pensoft Publishers

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          Abstract

          Cerapanorpa Gao, Ma & Hua, 2016, an endemic genus of Panorpidae in central China’s mountain regions, currently comprises 21 described species. Recently, the short-horned scorpionfly C. brevicornis (Hua & Li, 2007) was confirmed to contain two valid species by phylogeographic and morphological data. Individuals from the highlands of the eastern Bashan Mountains were suggested as a good species, separated from the original short-horned C. brevicornis.Cerapanorpa alpina sp. nov. was described from the alpine zone of the eastern Bashan Mountains in central China. The new species differs from its congeners by the following combination of characters: male bearing an extra-short anal horn on posterior margin of tergum VI; paramere elongate, extending beyond the median tooth of gonostylus and curved laterally at basal half; female medigynium slightly constricted medially without dorsal basal plate. The species number of Cerapanorpa is raised to 22.

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          Most cited references 12

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          Barcoding animal life: cytochrome c oxidase subunit 1 divergences among closely related species.

          With millions of species and their life-stage transformations, the animal kingdom provides a challenging target for taxonomy. Recent work has suggested that a DNA-based identification system, founded on the mitochondrial gene, cytochrome c oxidase subunit 1 (COI), can aid the resolution of this diversity. While past work has validated the ability of COI sequences to diagnose species in certain taxonomic groups, the present study extends these analyses across the animal kingdom. The results indicate that sequence divergences at COI regularly enable the discrimination of closely allied species in all animal phyla except the Cnidaria. This success in species diagnosis reflects both the high rates of sequence change at COI in most animal groups and constraints on intraspecific mitochondrial DNA divergence arising, at least in part, through selective sweeps mediated via interactions with the nuclear genome.
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            Revision of the genus Cerapanorpa (Mecoptera: Panorpidae) with descriptions of four new species

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              Cytotaxonomy and molecular phylogeny of the genus Cerapanorpa Gao, Ma & Hua, 2016 (Mecoptera: Panorpidae)

              The species of the genus Cerapanorpa Gao, Ma & Hua, 2016 (Mecoptera: Panorpidae) are characterized mainly by the presence of a finger-like anal horn on tergum VI of males and are distributed in the Oriental and eastern Palearctic regions. Herein, we investigated the pachytene banding patterns and reconstructed the Bayesian time-calibrated tree of some species of Cerapanorpa. All species examined display achiasmate meiosis and the same meiformula 2n = 42 + X0, reconfirming the monophyly of Cerapanorpa. The great variations in the size and number of heterochromatic bands suggest that they are reliable traits for species delimitation in Cerapanorpa. The existence of natural C-banding polymorphism indicates that chromosomal rearrangements likely have contributed to the diversification of chromosomal bands in Cerapanorpa. The closely related species of Cerapanorpa are reconfirmed to be evolutionarily independent entities by cytogenetic and molecular data. The divergence time estimated from the BEAST analysis shows that Cerapanorpa likely originated in the period from the Rupelian (30.7 Ma) to the Burdigalian (19.9 Ma), and most diversification occurred from the Burdigalian to the Piacenzian (17.4–2.8 Ma) in the Neogene. Our data suggest that chromosome rearrangements likely play a significant role in the speciation of Cerapanorpa.
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                Author and article information

                Journal
                Biodiversity Data Journal
                BDJ
                Pensoft Publishers
                1314-2828
                1314-2836
                September 27 2021
                September 27 2021
                : 9
                Article
                10.3897/BDJ.9.e72451
                © 2021

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