Elena FefilovaAleksandr NovikovElizaveta PopovaMaksim Golubev...
285-298页
查看更多>>摘要：Ancient Lake Baikal(LB)is the prime hotspot of the harpacticoid diversity.The Canthocamptidae harpacticoids in the lake can be considered at least six species flocks.The lacks of unequivocal diagnostic characters in the family species description often lead species identification to an impasse.Recently developed molecular techniques provide a powerful tool to subject copepod taxa to comparative analyses.In order to provide a new base for canthocamp-tids taxonomy and clarify the systematic in some species flocks,we analyzed the mitochondrial DNA marker COI of 103 harpacticoid specimens from LB belonging to five genera.The materials were obtained from different lake basins from the depths 0.2-1632 m.Using DNA barcoding,we identified 23 genetic species or groups of species,it was almost 1.5 times less than number of morphological species,and divergence of some molecular lineages were not corresponding to morphological species.Results of our study were the discovery of a new species,males of some morphological species,for which only females were previously described,clarification of the level of morphological variability of some species,etc.Specifically,it became apparent that morphological and genetic harpacticoid species diversity in LB differ significantly and it has to be detected strictly in complex.
查看更多>>摘要：Mitochondrial genomes of five Tykhepoda scolopendromorphs(Cryptopidae,Scolopocryptopidae and Plutoniumidae)are sequenced and analyzed using methods of comparative genomics to provide more information on the phylogeny of Scolopendromorpha.The locations of 22 tRNAs,13 PCGs,and 2 rRNAs are annotated.The heavy chain of mitochondrial genomes are 14,841-15,619 bp in length.A+T％vary from 64.79％to 77.40％,and mitochondrial genomes are CG and AT skewed.The phylogenetic reconstructions showed the blind clade,recently named Tykhepoda,is monophyletic with high support values(BS=100％and PP=1).
查看更多>>摘要：Two new species of the genus Trypoxylon,namely T.flavimaculatum Fu & Li,sp.nov.and T.tuberantennatum Fu & Li,sp.nov.,are described and illustrated from Guizhou,Guangdong,Guangxi and Zhejiang Provinces,China.Another two species,T.chosenense Tsuneki,1956 and T konosuense Tsuneki,1968,are newly recorded from China.
查看更多>>摘要：The genus Diomus Mulsant,1850(Coleoptera:Coccinellidae:Diomini)from China is herein revised.Five species of Diomus are occurring in the Chinese fauna to date,including a new species from the Dafushan Mountains Forest Park,Guangzhou,Guangdong,namely D.dafushanensis Bi,Peng & Chen,sp.nov.Nomenclatural history,diagnosis,illustrations and distribution were provided for each species.A key to the native species of Diomus from China is also presented.
查看更多>>摘要：Specimens of the crane fly genus Helius Lepeletier & Serville,1828 from Sichuan,China are examined and studied.Three Helius species all belonging to the nominotypical subgenus are recognized,of which H.(H.)pallidissimoides Xu,Ma & Zhang,sp.nov.is described and illustrated as new to science,and H.(H.)pallidissimus Alexander,1930 and H.(H.)franckianus Alexander,1940 are redescribed and illustrated.For the first time,descriptions and illustrations are provided for the male of H.(H.)pallidissimus and the female of H.(H.)franckianus.
查看更多>>摘要：In this study,we review the Rheotanytarsus acerbus species group based on adult males from China.Two new species,R.cangshanensis Lin & Yao,sp.nov.and R.yamamotoi Lin & Yao,sp.nov.,are described.R.adjectus(Johannsen,1932)is re-described for its new record from China.A world key to adult males of acerbus species group is provided for the first time.
查看更多>>摘要：A new freshwater opecoelid species,Sphaerostoma tamarae sp.nov.,is described from Rhynchocypris percnura mantschurica caught in the Syumnyur River(Amur River basin,Russia).This parasite species differs from all other congeners in the distribution of the vitelline follicles(restricted to the hindbody)and the morphology of the ventral sucker(strongly protuberant).Molecular phylogenetic analysis based on 28S rRNA gene sequences and the morphological analysis allow to tentatively assign the new species to the genus Sphaerostoma,without closing the question regarding the true genus affiliation of this species.In addition,the authors provide an argument for renaming the Plagioporinae to the Sphaerostomatinae.
NETL
NSTL
万方数据