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Eight species of Chrysolina have been chromosomally studied in male individuals from Central Europe, South France and the Urals, in Russia. Ch. rufa had 2n = 23, Ch. purpurascens crassimargo 2n = 24 and a meioformula of 11 + Xyp, Ch. globosa and Ch. bigorrensis 12 + Xyp, Ch. umbratilis 2n = 30 and 14 + XYp, a new non-chiasmate sex-chromosome system with both male sex-chromosomes of large size, Ch. cf. subcostata 12 + XYp with large sex-chromosomes also, Ch. interstincta 2n = 40 and 19 + Xyp, and Ch. obscurella 2n = 47. The taxonomic implications of these findings are discussed in relation with the current subgeneric classification of Chrysolina and principally that of the subgenera Colaphoptera, Sphaerochrysolina, Pleurosticha, Chalcoidea and Threnosoma.  相似文献   
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本文提议将蕨盲蝽属BryocorisFall啨n分为两个亚属 :蕨盲蝽亚属subg BryocorisFall啨n和锥喙蕨盲蝽亚属subg CobalorrhynchusReuter (stat nov )。文中记载此属的中国种类共 13种 ,包括 8个新种 :卜氏蕨盲蝽B buisp nov (正模♂ ,云南绿春 ) ,凹背蕨盲蝽B concavussp nov (正模♂ ,云南云龙 ) ,李氏蕨盲蝽B liisp nov (正模♂ ,西藏亚东 ) ,奇突蕨盲蝽B insuetussp nov (正模♂ ,云南屏边 ) ,叶突蕨盲蝽B loba tussp nov (正模♂ ,云南屏边大围山 ) ,四川蕨盲蝽B sichuanensissp nov (正模♂ ,四川峨眉山九老洞 ) ,带蕨盲蝽B vittatussp nov (正模♂ ,云南屏边大围山 ) ,熊氏蕨盲蝽B xiongisp nov (正模♂ ,云南屏边大围山 )。此外 ,尚有以下新意见 :B convexicollisHsiao 194 1,sp dist (取消与biquadranguliferReuter 190 6的异名关系 ,恢复为独立种 ) ;HekistaalbicollisCarvalho 1981,syn nov (降为B gracilisLinnavuori 1961的次异名 ) ;Sineviapallidipes(ZhengetLiu ,1992 ) ,comb nov [将原置于Bryocoris属中的 pallidipesZhengetLiu移入宽垫盲蝽族 (Eccritotarsini)的息奈盲蝽属 (SineviaKerzhner)中 ]。文中附有此属已知种的分种检索表。模式标本除注明者外 ,均保存于南开大学生物系  相似文献   
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Paramecium schewiakoffi sp. nov. is described from a pond in Shanghai, China. It is a freshwater species belonging to the “aurelia” subgroup of the genus. It is of similar size and shape to P. jenningsi, but has a single large micronucleus of the “chromosomal” morphological type, while P. jenningsi has two smaller micronuclei. The general morphology, morphometric characteristics and nuclear reorganization pattern, a random amplified polymorphic DNA (RAPD) fingerprint pattern, and the small subunit rRNA gene sequence are presented for the species. Comparison of P. schewiakoffi with the other species of Paramecium indicates that it is a valid new species of the genus. Geographical locations reported for many Paramecium species do not support the theory that all ciliates have a cosmopolitan distribution. It is proposed that, in an extension of Jankowski's earlier suggestion, the genus Paramecium should be subdivided into four subgenera: Chloroparamecium, Helianter, Cypriostomum and Paramecium, on the basis of morphometric, biological and molecular differences.  相似文献   
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记述中国直突摇蚊属两个新纪录亚属,寄莼直突摇蚊亚属Orthocladius(Pogonocladius)和钻木直突摇蚊亚属Orthocladius(Symposiocladius),雄成虫共5种,包括1新种O.(S.)futianensis sp.nov.,中国4新纪录种O.(P.)consobrinus(Holmgren),O.(S.)holsatus Goetghebuer,O.(S.)lignicolaKieffer和O.(S.)schnelli Sther,并编制了中国钻木直突摇蚊亚属4种雄虫检索表。新种模式标本均保存于南开大学生命科学学院摇蚊学研究室。  相似文献   
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Svatopluk Bíly 《ZooKeys》2013,(304):17-47
Revision of the Neotropical genera of the subtribe Anthaxiina Gory & Laporte, 1839 (Coleoptera, Buprestidae, Buprestinae, Anthaxiini). Five new genera are described: Anthaxita gen. n., Charlesina gen. n., Cobosina gen. n., Marikia gen. n. and Sanchezia gen. n. Genus Agrilaxia Kerremans, 1903 is divided into two subgenera: Agrilaxia and Costiptera subgen. n. and the genus Bilyaxia Hołyński, 1989 is divided into three subgenera: Bilyaxia, Paraguayetta subgen. n. and Tomasia subgen. n. One new species is described: Anthaxita peruviana sp. n., and two informal species-groups are suggested within Agrilaxia (Costiptera subgen. n.): Agrilaxia (Costiptera) modesta (Kerremans, 1897) species-group and Agrilaxia (Costiptera) occidentalis (Kerremans, 1900) species-group. Lectotype is designated for Agrilaxia mrazi Obenberger, 1932. A key of all genera/subgenera is provided and all treated taxa are illustrated.  相似文献   
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王红  曹诚一 《动物学研究》1993,14(2):118-127
本文对云南食植瓢虫族昆虫形态学,特别是跗爪基齿,上颚侧齿,雌、雄性外生殖器等性状的研究,讨论了本族的属间关系;应用分支系统学的原理和方法,对本族系统位置的研究进行了尝试。采用最大同步法对本族5个属8个性状状态进行了分支分析,其结果与传统分类结果有一定的差异。结论支持将食植瓢虫属分为3个亚属,其中2个为新亚属。  相似文献   
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The systematic biology of the subgenus Daphnia s . s . remains confused. Prior attempts at resolution used chiefly postabdominal claw morphology, chromosome numbers and rRNA gene sequences as characters for higher-level relations. Still, several taxa, such as Daphnia curvirostris Eylmann, 1878, have unclear affiliations. We addressed the position of D. curvirostris in this genus by estimating phylogenetic trees from a rapidly evolving protein coding gene (ND2), conducting broad geographical comparisons and carrying out detailed morphological comparisons. The Japanese ' curvirostris' was found to be a new divergent lineage in the subgenus Daphnia , and to possess distinctive morphological characteristics from D. curvirostris . We described this new species as Daphnia tanakai sp. nov. , and redescribed D. curvirostris . The polymorphic postabdominal claw morphology and the distinctive chromosome number of D. tanakai sp. nov. provided evidence for rapid evolution of these traits. Our new morphological, chromosomal and genetic assessment of Daphnia weakened the argument for division of the subgenus Daphnia ( Daphnia ) O. F. Müller, 1785 sensu Johnson, 1952, into two further subgenera.  © 2006 The Linnean Society of London, Zoological Journal of the Linnean Society , 2006, 146 , 385–405.  相似文献   
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We present a near comprehensive, densely sampled, multilocus phylogenetic estimate of species relationships within the anuran family Ceratobatrachidae, a morphologically and ecologically diverse group of frogs from the island archipelagos of Southeast Asia and the South‐West Pacific. Ceratobatrachid frogs consist of three clades: a small clade of enigmatic, primarily high‐elevation, semi‐aquatic Sundaland species currently assigned to Ingerana (for which we erect a new genus), which is the sister taxon of two large, monophyletic radiations, each situated on islands on either side of Wallace's Line. One radiation is composed of Philippine species of Platymantis and the other contains all taxa from the eastern Indonesian, New Guinean, Solomon, Bismarck, and Fijian archipelagos. Several additional genera (Batrachylodes, Discodeles, Ceratobatrachus, and Palmatorappia) are nested within Platymantis, and of these Batrachylodes and Discodeles are nonmonophyletic. To address the widespread paraphyly of the genus Platymantis and several additional nomenclatural issues, we undertook a wholesale nomenclatural reorganization of the family. Given our partially unresolved phylogeny, and in order to impart a conservative, stable taxonomy, involving a minimal number of genus‐species couplet changes, we propose a conservative classification representing a few compromises. These changes are designed to preserve maximally the presumed original intent of taxonomy (widely used group names associated with morphological and ecological diversity of particular species or groups of species) while implementing a hierarchical system that is consistent with the estimate of phylogeny based on new molecular data. © 2015 The Linnean Society of London  相似文献   
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