Taxonomic notes on the crab-spider genera Nyctimus Thorell, 1877 and Zametopina Simon, 1909 (Araneae, Thomisidae) with descriptions of six new species from Southeast Asia Author Benjamin, Suresh P. 0000-0003-4666-0330 National Institute of Fundamental Studies, Hantana Road, Kandy 20000, Sri Lanka Author Dhiya’ulhaq, Naufal Urfi 0000-0001-6563-4643 Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Untere Karspüle 2, Göttingen 37073, Germany & Species Obscura, Jl. Duren 1 No. 2, Depok, Jawa Barat 16434, Indonesia Author Deeleman-Reinhold, Christa Netherlands Author Buchori, Damayanti 0000-0002-2843-0737 Department of Plant Protection, Faculty of Agriculture, IPB University, Kampus IPB Dramaga Bogor, Jl. Raya Dramaga, West Java 16680, Indonesia Author Hidayat, Purnama 0000-0001-9507-6275 Department of Plant Protection, Faculty of Agriculture, IPB University, Kampus IPB Dramaga Bogor, Jl. Raya Dramaga, West Java 16680, Indonesia Author Scheu, Stefan 0000-0003-4350-9520 Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Untere Karspüle 2, Göttingen 37073, Germany Author Drescher, Jochen 0000-0002-5162-9779 Animal Ecology, J. F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Untere Karspüle 2, Göttingen 37073, Germany & Centre for Transdisciplinary and Sustainability Sciences, IPB University, Kampus IPB Baranangsiang, Jl. Raya Pajajaran No. 27, West Java 16127, Indonesia text ZooKeys 2025 2025-10-09 1255 95 125 journal article 312558 10.3897/zookeys.1255.158380 fc490eb6-835d-440a-99a5-298ced25981a 584332C1-8B4B-41B9-A17D-327F47B5616A Zametopina calceata Simon, 1909 Zametopina calceata Simon, 1909 : Simon 1909: 123 ; Tang et al. (2010) : 66 , figs 1-18. Type material. Holotype . Vietnam – Cao B ằng Province • ♂ ; “ Boa Luc , dans Haut-Tonkin , à l’Ouest de Cao-Bang et prés la frontière du Yun-Nan et du Kuang-Si ” (probably B ảo L ạc District); 1906 or 1907; de Pelacot leg.; MNHN 22937 . Examined. Diagnosis. See Lin et al. (2023) . Description. See Tang et al. (2010) . Distribution. China ( Yunnan ), Vietnam (Cao B ằng) (Fig. 19 ). Distribution of all described Nyctimus and Zametopina ( Araneae : Thomisidae ) species. Grey circles surrounding white dots indicate species collected from the same or very closely located sampling points in Brunei, Sabah (Malaysia), and Jambi (Indonesia).