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中国贵州栅蛛属一新种记述(蜘蛛目:栅蛛科)
A New Species of the Genus Hahnia C. L. Koch, 1841(Araneae: Hahniidae) from Guizhou, China
黄贵强1, 陈会明2*, 张志升1
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DOI:
作者单位:1. 西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆 400715;
2. 贵州科学院生物研究所, 贵阳 550009
中文关键字:栅蛛属;描述;生态照;威宁
英文关键字:Hahnia; description; ecological photos; Weining
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 retrolaterally.RTA sharply curved.Tegulum covered with a series of setae near prolateral and proximal margin,the distal setae longer and extended beyond cymbial margin.Embolus originating retrolatero-proximally,its tip situated near the base of a membranous median apophysis.Cymbial furrow deep and nearly as long as half of cymbium (figs 5-7,10-12).
Paratype females (figs 3-4).Total length 3.68-3.71.Prosoma 1.65-1.67 long,1.24-1.28 wide;opisthosoma 1.96-2.26 long,1.31-1.59 wide.One of them total length 3.68;prosoma 1.65 long,1.24 wide;opisthosoma 1.96 long,1.31 wide.Eye sizes and interdistances:AME 0.08,ALE 0.11,PME 0.11,PLE 0.11;AME-AME 0.06,AME-ALE 0.03,PME-PME 0.08,PME-PLE 0.07,ALE-PLE 0.03;MOA 0.22 long,front width 0.17,back width 0.32.Clypeus height 0.17.Leg measurements:Ⅰ 4.57(1.31,1.52,0.98,0.76);Ⅱ 4.28(1.27,1.35,0.94,0.72);Ⅲ 3.94(1.13,1.20,0.96,0.65);Ⅳ 5.28(1.53,1.66,1.28,0.81).Leg formula:4123.
Epigyne with a small and transversal oval atrium near posterior margin,and the atrium nearly twice as wide as spermatheca.Two copulatory openings located in the atrium.Copulatory ducts first extended anterio-laterally,then coiled mesally and bifurcated,one branch short and connected with the sub-global subspermatheca,the other branch long and connected with the sub-global spermatheca;both spermathecae posterio-laterally located and widely separated.Fertilization ducts short and originating from posterior spermathecae,tip of fertilization ducts pointing laterally.A pair of curved and widely separated hoods located in the posterior of epigastric furrow (figs 8-9,13-14).
2018,37(4): 456-460 收稿日期:2017-12-13
DOI:10.11984/j.issn.1000-7083.20170392
分类号:Q959.226
基金项目:国家自然科学基金项目面上项目(31471974);贵州省科技厅服务企业行动计划项目[(2015)4013];贵州省药用植物引种驯化与示范推广技术科技创新人才团队项目;草海国家级自然保护区综合科学考察项目(2016GZCH-012)
作者简介:黄贵强(1988-),男,博士研究生,主要从事栅蛛科系统学研究,E-mail:hgqnasa@163.com
*通讯作者:陈会明,E-mail:mei0601@126.com
参考文献:
Huang GQ, Zhang ZS, Liu YH. 2017. Review of the comb-tailed spider genus Hahnia C.L. Koch, 1841 (Hahniidae) from Gaoligong Mountains in Yunnan, China[J]. Zootaxa, 4344(3):444-464.
Lehtinen PT. 1967. Classification of the cribellate spiders and some allied families, with notes on the evolution of the suborder Araneomorpha[J]. Annales Zoologici Fennici, 4:199-468.
World Spider Catalog. 2017. Natural history museum bern[EB/OL].[2017-11-30]. http://wsc.nmbe.ch/version 16.
Zhang ZS, Chen HM. 2015. Hahnia zhui sp. nov. (Hahniidae), a special species with a unique shape of tegulum[J]. Acta Arachnologica Sinica, 24(2):70-75.
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