DE Souza Castanheira Pedro, Baptista Renner Luiz Cerqueira
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Zootaxa. 2020 Apr 30;4768(1):zootaxa.4768.1.4. doi: 10.11646/zootaxa.4768.1.4.
New data about slender orb-weaving species of the cosmopolitan genus Tetragnatha are presented. Tetragnatha chauliodus (Thorell, 1890) and Tetragnatha tenuissima O. Pickard-Cambridge, 1889 are redescribed, including one synonymy for each species and the first record of the first species to the Neotropical region. Also, three new species are herein described, all based on males and females. Tetragnatha megalocera new species is recorded exclusively from Brazil (Espírito Santo, Rio de Janeiro, Rio Grande do Sul and São Paulo states), while Tetragnatha renatoi new species is recorded from Venezuela, Argentina (Misiones) and Brazil (Paraná, Pernambuco, Rio Grande do Sul, Rondônia, Santa Catarina and São Paulo states). Finally, Tetragnatha chiyokoae new species is described from Yunnan province (China) and Okinawa (Japan), with an additional record for Taiwan. Furthermore, Tetragnatha exilima (Mello-Leitão, 1943), Tetragnatha filigastra Mello-Leitão, 1943 and Tetragnatha lactescens (Mello-Leitão, 1947) are nomina dubia.
本文呈现了关于全球广布的长脚蛛属（Tetragnatha）中体态细长的圆网蛛物种的新数据。重新描述了粗螯长脚蛛（Tetragnatha chauliodus (Thorell, 1890)）和细长足蛛（Tetragnatha tenuissima O. Pickard-Cambridge, 1889），包括每个物种的一个同物异名，以及粗螯长脚蛛在新热带区的首次记录。此外，本文还描述了三个新物种，均基于雄性和雌性标本。巨角长脚蛛新种（Tetragnatha megalocera new species）仅在巴西（圣埃斯皮里图州、里约热内卢州、南里奥格兰德州和圣保罗州）有记录，而雷氏长脚蛛新种（Tetragnatha renatoi new species）在委内瑞拉、阿根廷（米西奥内斯省）和巴西（巴拉那州、伯南布哥州、南里奥格兰德州、朗多尼亚州、圣卡塔琳娜州和圣保罗州）有记录。最后，奇约科长脚蛛新种（Tetragnatha chiyokoae new species）在中国云南省和日本冲绳被描述，并在台湾有额外记录。此外，细弱长脚蛛（Tetragnatha exilima (Mello-Leitão, 1943)）、丝腹长脚蛛（Tetragnatha filigastra Mello-Leitão, 1943）和乳白长脚蛛（Tetragnatha lactescens (Mello-Leitão, 1947)）为疑名。
