Two new spider families from Late Cretaceous Kachin amber (Arachnida: Araneae) Author Jiang, Tongyao Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China & Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar Author Xin, Yafei College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China Corresponding authors, E-mails: yaozy @ synu. edu. cn; lisq @ ioz. ac. cn Author Yao, Zhiyuan College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China Corresponding authors, E-mails: yaozy @ synu. edu. cn; lisq @ ioz. ac. cn Author Li, Shuqiang Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China text Zoological Systematics 2020 45 4 266 280 journal article 10.11865/zs.202033 2095-6827 5367231 00441A2B-31CF-400B-B2AA-E7BEA6775439 Genus Gigarachne Jiang & Li , gen. nov. Type species. Gigarachne bian Jiang & Li , sp. nov. Etymology. The generic name is derived from Greek word gígas meaning “giant”, referring to the large size of the spider; and Greek word arachne meaning “spider”. The generic name is feminine. Diagnosis. Gigarachne Jiang & Li , gen. nov. can be distinguished by the characters of the family, as given above. Distribution. Late Cretaceous Kachin amber, Myanmar .