2017年, 第42卷, 第2期　
刊出日期：2017-04-24

  

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  New cave-dwelling spiders of the family Dictynidae (Arachnida, Araneae) from Guangxi and Guizhou, China

  Shuqiang Li, Xiaoxiao Wang

  动物分类学报. 2017, 42(2): 125-228. https://doi.org/10.11865/zs.201711

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  Twenty-four new spider species of the family Dictynidae from caves of Guangxi and Guizhou in southern China are described, accompanied by line drawings and photomicroscopy images. Fifteen of them belong to Brommella Tullgren, 1948: B. baiseensis Li, sp. nov., B. casseabri Li, sp. nov., B. chongzuoensis Li, sp. nov., B. dolabrata Li, sp. nov., B. funaria Li, sp. nov., B. josephkohi Li, sp. nov., B. linyuchengi Li, sp. nov., B. renguodongi Li, sp. nov., B. resima Li, sp. nov., B. sejuncta Li, sp. nov., B. spirula Li, sp. nov., B. tongyanfengi Li, sp. nov., B. wangfengcheni Li, sp. nov., B. xinganensis Li, sp. nov. and B. yizhouensis Li, sp. nov.; eight to Cicurina Menge, 1871: C. avicularia Li, sp. nov., C. damaoensis Li, sp. nov., C. dong Li, sp. nov., C. kailiensis Li, sp. nov., C. majiangensis Li, sp. nov., C. parallela Li, sp. nov., C. wusanani Li, sp. nov., and C. zhazuweii Li, sp. nov.; one to Lathys Simon, 1884: L. inaffecta Li, sp. nov. Types of all new species are deposited in the Institute of Zoology, Chinese Academy of Sciences in Beijing (IZCAS).
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  Validity of Ips chinensis Kurentzov & Kononov confirmed with DNA data

  Milos Kní?ek, Anthony I. Cognato

  动物分类学报. 2017, 42(2): 229-235. https://doi.org/10.11865/zs.201712

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  Ips acuminatus has a Eurasian distribution and overlaps with Ips chinensis in southern China. These species are morphologically similar and taxonomic confusion is possible because of the lack of a recent systematic review of these species. Assembly of specimens throughout the ranges of these species allowed for the examination of species boundaries based on monophyly. A phylogeny was reconstructed with cytochrome oxidase I DNA sequences for 24 individuals plus three outgroups and morphological diagnostic characters typical for Ips species were reviewed. The strict consensus of 16 most parsimonious trees recovered I. acuminatus and I. chinensis reciprocally monophyletic with an above average pairwise sequence difference (9.6% compared to 6.1% for Ips sister species). These clades associated with diagnostic characters of elytral declivity, that is, the position of spine 2. Monophyly, nucleotide differences, and diagnostic characters support the validity of I. chinensis. In addition, high sequence divergence was observed between two clades of I. chinensis which corresponded to northern and southern populations however consistent morphological differences were not found for those clades.
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  Taxonomical notes on the family Ptilocodiidae (Anthomedusae) from the central and southern of South China Sea, with a new genus and a new species

  Lianggen Wang, Feiyan Du, Zhenzu Xu, Jiaqi Huang, Donghui Guo

  动物分类学报. 2017, 42(2): 236-242. https://doi.org/10.11865/zs.201713

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  This study reviews the Ptilocodiidae from South China Sea, including three species. The diagnoses of the family and each genus are provided. A new genus, Tregouboviopsis Guo, Xu & Huang, gen. nov. is erected, based on the monotypy, Tregouboviopsis perradialis (Xu, Huang & Du, 2012) comb. nov., which is transferred from the genus Tregoubovia. A free eumedusoid of Hydrichthella ocellata Xu, Huang & Wang, sp. nov. is described in the present paper. A key to known genera of family Ptilocodiidae is presented. All type specimens are deposited in the South China Sea Fisheries Research Institute, Chinese Academy of Fishery Science.
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  A new species of Chresmodidae from Mid-Cretaceous amber discovered in Myanmar

  Weiwei Zhang, Wanzhi Cai, Wenzhu Li, Xingke Yang, Siqin Ge

  动物分类学报. 2017, 42(2): 243-247. https://doi.org/10.11865/zs.201714

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  The extinct new species, Chresmoda chikuni Zhang & Ge, sp. nov. is described from the Mid-Cretaceous amber from northern Myanmar. This amber insect exhibits a very peculiar combination of derived characters like strongly elongated, free coxae, non-clawed pretarsus. The type specimens are deposited in the Three Gorges Entomological Museum, Chongqing, China.