Four new species of Linyphiidae spiders (Arachnida: Araneae) from Jiangjin District of Chongqing, China

An ongoing survey on spider diversity in Jiangjin District, Chongqing City has the goal of documenting the regional diversity of spiders. In this context, we here describe four new species of the spider family Linyphiidae from Jiangjin District of Chongqing: Gonatium tridentatum sp. nov. (), Oedothorax simianensis sp. nov. (), Wuliphantes dahonghaiensis sp. nov. () and Yuelushannus baishaensis sp. nov. (). Detailed descriptions, photographs of copulatory organs and somatic features are presented. Additionally, color photos of Ceratinella brevis (Wider, 1834) () and distribution map of all five species are provided.