The distribution, spatial clustering, and density of trapdoor spiders in two California coastal dune ecosystems

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  The distribution, spatial clustering, and density of trapdoor spiders in two California coastal dune ecosystems Abstract Coastal dune ecosystems support endemic trapdoor spiders, yet population data for these species are limited. We conducted the first coastal dune trapdoor spider population estimation surveys at Moss Landing State Beach (California) and for Aptostichus stephencolberti Bond 2008 at Sunset State Beach using randomly selected 1m 2 quadrats across ~26,000 m 2 per site. Burrow densities were similar between sites (Sunset: 0.287 burrows/m 2 ; Moss: 0.453 burrows/m 2 ), yielding estimated population sizes of ~35,206 and ~30,959 individuals, respectively. However, spatial analyses revealed contrasting patterns of burrow distribution. At Sunset State Beach, burrow presence was strongly associated with vegetation and occurred closer to plants, despite vegetation being randomly distributed. In contrast, no vegetation–burrow association was detected at Moss Landing, alth...

Thirty-eight spider species (Arachnida: Araneae) from China, Indonesia, Japan and Vietnam

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Thirty-eight spider species (Arachnida: Araneae) from China, Indonesia, Japan and Vietnam

Abstract
Four new genera in three spider families are reported, namely Langlibaitiao Lin & Li, gen. nov., of Dictynidae O. Pickard-Cambridge, 1871, with Lathys inaffecta Li, 2017 (♂♀, China: Guangxi) as the type species; Huoyanluo Lin & Li, gen. nov., of Macrobunidae Petrunkevitch, 1928, with Huoyanluo ruanxiaoqi Lin & Li, sp. nov. (♂, China: Yunnan) as the type species and Gushangzao Lin & Li, gen. nov. and Gyro Lin & Li, gen. nov., of Theridiidae Sundevall, 1833, with Gushangzao shiqian Lin & Li, sp. nov. (♂♀, China: Xizang) and Gyro zeppeli Lin & Li, sp. nov. (♀, China: Yunnan) as the type species, respectively. Further 31 new species in 19 spider families are reported, including Agelenidae C.L. Koch, 1837: Troglocoelotes doul Lin & Li, sp. nov. (♀, China: Guangxi) and T. ruanxiaowu Lin & Li, sp. nov. (♀, China: Guangxi); Dictynidae: Langlibaitiao zhangshun Lin & Li, sp. nov. (♂, China: Hainan); Hahniidae Bertkau, 1878: Hahnia zhuyifani Lin & Li, sp. nov. (♀, China: Yunnan); Liocranidae Simon, 1897: Platnick xintongi Lin & Li, sp. nov. (♂♀, China: Xizang); Macrobunidae: Funny yanqing Lin & Li, sp. nov. (♂♀, China: Xizang) and Huoyanluo zhangzezhongi Lin & Li, sp. nov. (♂♀, China: Yunnan); Mysmenidae Petrunkevitch, 1928: Phricotelus yangxiong Lin & Li, sp. nov. (♂♀, China: Chongqing); Nemesiidae Simon, 1889: Raveniola shixiu Lin, Wang & Li, sp. nov. (♀, China: Guangxi) and R. xiezhen Lin, Wang & Li, sp. nov. (♂♀, China: Yunnan); Nesticidae Simon,1894: Speleoticus sicet Lin & Li, sp. nov. (♂♀, China: Sichuan); Ochyroceratidae Fage, 1912: Speocera yiduoi Lin & Li, sp. nov. (♂♀, China: Guangdong); Oecobiidae Blackwall, 1862: Uroctea chenyui Lin & Li, sp. nov. (♂♀, China: Guangxi); Oonopidae Simon, 1890: Orchestina xiebao Lin & Li, sp. nov. (♀, China: Chongqing); Philodromidae Thorell, 1869: Apollophanes lujiani Lin & Li, sp. nov. (♂♀, China: Guangxi) and Psellonus dawanqu Lin & Li, sp. nov. (♂♀, China: Guangdong); Salticidae Blackwall, 1841: Coccorchestes spark Lin & Li, sp. nov. (♂♀, Indonesia, West Papua), Onomastus zhuwu Lin & Li, sp. nov. (♂♀, China: Chongqing) and Synagelides huangxin Lin & Li, sp. nov. (♂♀, China: Chongqing); Sparassidae Bertkau,1872: Thelcticopis chongzu Lin & Li, sp. nov. (♂♀, China: Yunnan); Symphytognathidae Hickman,1931: Kirinua zhengqizhangi Lin & Li, sp. nov. (♀, China: Guangxi); Synotaxidae Simon,1895: Tekellina haosiwen Lin & Li, sp. nov. (♂♀, China: Chongqing) and T. huihangi Lin & Li, sp. nov. (♂♀, China: Zhejiang); Theridiidae: Chrosiothes pengqi Lin & Li, sp. nov. (♀, China: Chongqing), Coscinida hantao Lin & Li, sp. nov. (♂♀, China: Chongqing), Gushangzao goemon Lin & Li, sp. nov. (♂♀, Japan, Iriomotejima Island), Theridion chenzhangfui Lin & Li, sp. nov. (♂♀, China: Zhenjiang) and Yaginumena xuanzan Lin & Li, sp. nov. (♂♀, China: Chongqing); 2 Lin et al. Theridiosomatidae Simon, 1881: Coddingtonia chenyufengi Lin & Li, sp. nov. (♀, Vietnam: Hai Phong) and Sennin zhangxinae Lin & Li, sp. nov. (♂♀, Vietnam: Hai Phong); Zodariidae Thorell, 1881: Mallinella zhoushengboi Lin & Li, sp. nov. (♂♀, China: Chongqing). Four new combinations in three spider families are proposed: Philodromidae: Psellonus kianganensis (Barrion & Litsinger, 1995) comb. nov.; Theridiidae: Gushangzao pelorosus (Zhu, 1998) comb. nov. and Dictynidae: Langlibaitiao chishuiensis (Zhang, Yang & Zhang, 2009) comb. nov. and Lan. inaffectus (Li, 2017) comb. nov.

Li, Shuqiang. (2024). Thirty-eight spider species (Arachnida: Araneae) from China, Indonesia, Japan and Vietnam. Zoological Systematics. 49. 4-98. 10.11865/zs.2023.