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- 2018
中国贵州栅蛛属一新种记述(蜘蛛目:栅蛛科)
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Abstract:
中文摘要:记述了分布于中国贵州威宁的栅蛛属 Hahnia一新种:威宁栅蛛 Hahnia weiningense sp. nov.。提供了显微照片、手绘图版和生态照片。标本保存于西南大学生命科学学院。
英文摘要:A new species of the genus Hahnia C.L.Koch, Hahnia weiningense sp.nov.,is described from Weining county,Guizhou province,China.Micrograph,morphological illustrations and ecological photos of the new species are presented.Specimens are deposited in the School of Life Sciences,Southwest University,Chongqing,China (SWUC).All measurements are given in mm. Hahnia weiningense sp.nov.( figs 1-16) Type material: Holotype ♂,Baicaoping,Weining county,Bijie city,Guizhou province,104°27.869'E,26°55.899'N,Alt.2 494 m,18 May 2017,collected by Chen HM,Zhang ZS and Wang LY.The data of paratypes 4 ♂ and 3♀ are the same as those of holotype. Etymology: The specific name is designated after the type locality Weining county. Diagnosis: This new species differs from other species of Hahnia by the male palpal bulb which covered with a series dark brown setae near prolateral margin,distal setae longer and extended beyond cymbial margin in ventral (figs 5,10) and dorsal view (figs 7,12);female epigyne with a transverse oval atrium,the atrium nearly twice as wide as spermatheca.Additionally,this new species is similar to Hahnia subsaccata Huang&Zhang,2017(see Huang et al.,2017:page 455,figs 10-12),but can be distinguished from the latter by palpal tegulum with longer setae near prolateral center,retrolateral tibial apophysis (RTA) and patellar apophysis more curved,tip of RTA pointing retrolaterally (figs 5-7,10-12);epigyne with a wider atrium (compare with the diameter of spermatheca),longer copulatory ducts (compare with the diameter of spermatheca),subspermathecae nearly global,spermathecae not covered copulatory ducts in dorsal view (figs 8-9,13-14). Description: male holotype (figs 1-2).Total length 3.19.Carapace 1.69 long and 1.28 wide;opisthosoma 1.71 long and 1.12 wide.Eye sizes and interdistances:anterior median eye (AME)0.06,anterior laterel eye (ALE)0.10,posterior median eye (PME)0.09,posterior lateral eye (PLE)0.11;AME-AME 0.05,AME-ALE 0.04,PME-PME 0.08,PME-PLE 0.07,ALE-PLE 0.03.Median ocular area (MOA)0.22 long,front width 0.15,back width 0.29.Clypeus height 0.19.Chelicerae with distinct stridulatory files,3 promarginal,5 retromarginal teeth.Leg measurements:Ⅰ 4.96(1.45,1.69,1.06,0.76);Ⅱ 4.70(1.39,1.54,1.00,0.77);Ⅲ 4.23(1.19,1.30,1.02,0.72);Ⅳ 5.33(1.48,1.72,1.27,0.86).Leg formula:4123.Spiracle long and transverse,the distance of spiracle to epigastric furrow as long as to spinnerets (fig.2). Male palpal patella with a hooked apophysis originating