Twenty new spider species (Arachnida: Araneae) from Late Cretaceous Kachin amber (Myanmar) Author Xin, Yafei College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China & Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar Corresponding authors, E-mails: yaozy @ synu. edu. cn; lisq @ ioz. ac. cn Author Jiang, Tongyao Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China Author Yao, Zhiyuan College of Life Science, Shenyang Normal University, Shenyang 110034, Liaoning, China Author Li, Shuqiang Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China text Zoological Systematics 2022 47 1 1 65 http://zoobank.org/1c62670d-1ceb-4a0c-8a12-d8824f6b61da journal article 10.11865/zs.2022101 2095-6827 7176146 1C62670D-1CEB-4A0C-8A12-D8824F6B61DA Priscaleclercera thanae Jiang & Li , sp. nov. ( Figs 31–33 ) Holotype . Male (IZCAS-Ar42694Fo). Late Cretaceous amber from Hukawng Valley . Syninclusion includes one dipteran . Paratype male (IZCAS-Ar42695Fo). Late Cretaceous amber from Hukawng Valley . No biotic syninclusions . Etymology. The species name is a popular Burmese girl’s name and means “a million”; noun in apposition. Diagnosis. This species resembles P. paucispinae (see Wunderlich, 2017: 151 , figs 119–121, photo 75) by the presence of forks on the sclerites. The new species can be distinguished from the latter by the sclerite 2 without a forked tip in retrolateral view ( Fig. 31A ). Description. Male. Total length 2.38; Carapace 0.72 long; Opisthosoma 1.66 long. Left palp: - (0.49+ 0.18 + -), left leg I: - (3.28 + 0.27 + 3.48 + - + -), leg II-IV absent, right leg I absent, leg II : 9.67 (2.97 + 0.13 + 3.03 + 2.84 + 0.70), leg III : 4.81 (1.56 + 0.16 +1.22 + 1.31 + 0.56), leg IV: 9.64 (3.21 + 0.31 + 2.56 + 2.78 + 0.78). Eye sizes and interdistances: ALE 0.04, PLE 0.03, PME 0.05, PLE–PME 0.04. Habitus as in Figs 32A–D . Carapace round ( Fig. 32B ), brown, six eyes ( Fig. 32C ) almost ovoid, PME> ALE> PLE; labium not visible. Abdomen ( Figs 32A–B ) light yellow, elongate. Anterior lateral spinnerets ( Fig. 32D ) cylindrical, with three segments. Palp ( Figs 31A–B, D , 33 ). Femur with at least five short macrosetae ventrally; cymbium longer than wide, with dense brown setae; cymbium with three macrosetae: one retrolateral long and curved with a hook, and two preapical, short, subconical. Bulb longer than wide, with oval basal portion, and three sclerites apically. Sclerite 1 forked, appressed to sclerite 2. Sclerite 2 elongate, serrated apically. Sclerite 3 disc-shaped with two horn-shaped apophyses. Figure 34. Priscaleclercera thaungi Jiang & Li , sp. nov. , holotype male (IZCAS-Ar42696Fo), right palp. A. Retrolateral view; B. Apical view. Scale bars = 0.05 mm. Figure 35. Priscaleclercera thaungi Jiang & Li , sp. nov. , holotype male (IZCAS-Ar42696Fo), habitus, lateral view. Scale bars = 0.50 mm. Male ( paratype , IZCAS-Ar42695Fo, Fig. 31C ). Same as holotype .