Taxonomic Study Of The Extinct Spiders From The Cretaceous Kachin Amber In The National Zoological Museum Of China(arachnida: Araneae)

The present dissertation deals with the taxonomy of the extinct spiders from the Cretaceous Kachin amber in the National Zoological Museum of China.A total of 12 genera and 32 species from six families,including one new genus and 26 new species,are diagnosed: Retrooecobius lwini Jiang ? Li,2022,Zamilia arkari Jiang ? Li,2022,Zamilia sheini Jiang ? Li,2022 and Zamilia shwayi Jiang ? Li,2022 from Oecobiidae Blackwall,1862;Burmorchestina acuminata Wunderlich,2017,Burmorchestina biangulata Wunderlich,2017,Burmorchestina bo Jiang ? Li,2021,Burmorchestina circular Wunderlich,2020,Burmorchestina gong Jiang ? Li,2021,Burmorchestina plana Wunderlich,2017,Burmorchestina pulcheroides Wunderlich,2017,Burmorchestina pulchra Wunderlich,2008 and Orchestina qiu Jiang ? Li,2021 from Oonopidae Simon,1890;Furcembolus chuandiani Jiang ? Li,2021,Furcembolus fengzheni Jiang ? Li,2021,Furcembolus inzaliae Jiang ? Li,2022 and Furcembolus martensi Jiang ? Li,2021 from Pacullidae Simon,1894;Priscaleclercera chimei Jiang ? Li,2022,Priscaleclercera foshou Jiang ? Li,2022,Priscaleclercera hlaingi Jiang ? Li,2022,Priscaleclercera kani Jiang ? Li,2022,Priscaleclercera kyawae Jiang ? Li,2022,Priscaleclercera thanae Jiang ? Li,2022 and Priscaleclercera thaungi Jiang ? Li,2022 from Psilodercidae Machado,1951;Bicornoculus aungi Jiang ? Li,2022,Bicornoculus wunnai Jiang ? Li,2022,Bicornoculus yarzari Jiang ? Li,2022,Cymbioblemma ohnmari Jiang ? Li,2022 and Palpalpaculla phyui Jiang ? Li,2022 from Tetrablemmidae O.Pickard-Cambridge,1873;Burmatheridon cetani Jiang ? Li,2022,Cretotheridion champoi Jiang ? Li,2022 and Triangulum thutai Jiang ? Li,2022 from Theridiidae Sundevall,1833.This paper provided morphological descriptions of all the species and 261 diagnostic figures in 81 plates.