A review of the taxonomy of spiny-backed orb-weaving spiders of the subfamily Gasteracanthinae (Araneae, Araneidae) in Thailand Author Macharoenboon, Kongkit Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand Author Siriwut, Warut Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand Author Jeratthitikul, Ekgachai https://orcid.org/0000-0002-3477-9548 Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand ekgachai.jer@mahidol.edu text ZooKeys 2021 2021-04-16 1032 17 62 http://dx.doi.org/10.3897/zookeys.1032.62001 journal article http://dx.doi.org/10.3897/zookeys.1032.62001 1313-2970-1032-17 EBF7586A9EF748FEBFB53D8F1E372120 7E7EE68D2DB65E1680CC7E33B36AEC74 Gasteracantha frontata Blackwall, 1864 Gasteracantha frontata Blackwall, 1864: 40. Type locality: East Indies. Gasteracantha frontata Full list of synonyms and usage of the name available in World Spider Catalog (2020) . Remarks. The abdomen of G. frontata is wider than long. Color of the abdomen is brownish yellow. Median spines of G. frontata are conical, and not elongated compared to other Gasteracantha species with a broad abdomen ( Blackwall 1864 ; Pickard-Cambridge 1879 ). Gasteracantha frontata were reported from Chanthaburi and Rayong provinces ( Simon 1886 ). However, we failed to obtain specimens from either area in this study. Distribution. East Indies, India, Thailand, Myanmar, Vietnam, and Indonesia ( Simon 1886 ; World Spider Catalog 2020 ).