Odontolabis platynota (Hope, 1845)(Figs. 3; 4F–I; 5C–D, G–H; 6C–D, G–H; 7E–L; 8D–I; 9B–C; 10G–L).Lucanus platynotus Hope, 1845: 18.Odontolabis evansii: Westwood 1855: 201, pl. X, fig. 5. Type locality: China. Synonymized by Parry (1864).Odontolabis emarginatus: Saunders 1857: 49, pl. III, figs. 4–5. Type locality: China. Synonymized by Thomson (1862).Anoplocnemus platynotus: Thomson 1862: 394.Odontolabis platynotus: Parry 1864: 77; Leuthner 1885: 435, pl. LXXXVIII, figs. 9–12.Odontolabis platynotus var. coomani: Didier 1927: 271–272. Type locality: Vietnam, Hoa Binh.Caleodes platynotus: Arrow 1950: 201–202, pl. XXI, figs. 1–2.Odontolabis platynota: Maes 1992: 26; Mizunuma & Nagai 1994: 229, pl. 38, fig. 177; Fujita 2010: 138, pl. 81, fig. 381.Odontolabis platynota coomani: Mizunuma & Nagai 1994: 229, pl. 38, fig. 177; Fujita 2010: 138, pl. 81, fig. 381. New synonymy.Type locality. East Indies.Type material examined. Syntype (photos only): 1 female (OUMNH) East Indies (https://oumnh.ox.ac.uk/ collections-online#/item/oum-catalogue-366136).Additional material examined. CHINA: 1 mesodont male (CZHQ): Fujian, Fuzhou, Jinan District, Children’s Park (儿âȓ园), 7.VI.2023, Su-Lan Huang leg.;1 mesodont male, 1 female (CXTZ; IMS: O3): Fujian, Longyan, Meihua Mountain (DZĒƜ), VI.2021, local collector leg.; 1 telodont male (CXTZ): Guangxi, Fangchenggang, Nasuo Town (DūDz), Chonghuanggou (冲Dzŝ), alt. 400m, VII.2022, local collector leg.; 2 telodont males (CXTZ): Guangxi, Fangchenggang, Fangcheng, Naliang Town (DPDz), Wenshi village (ÝṪť), alt. 105m, 15.V.2024, local collector leg.; 2 telodont males, 1 amphiodont male, 1 priodont male, 1 female (CXTZ): Guangxi, Wuzhou, Cenxi, Chengjian Town (ŭáDz), Daliang village (大Pť), VI.2021, local collector leg.; 1 telodont males, 1 female (CXTZ): Guangxi, Dongxing, Malu Town (ḶRDz), 6.VI.2021, local collector leg.; 2 telodont males, 1 mesodont male (IMS: O4), 1 priodont male (CFYX): Guangdong, Guangzhou, Huadu, Forest Park of Wangzi Mountain (Ɨ ŦƜũüȓ园), 15.VII.2023, local collector leg.; 1 mesodont male, 1 priodont male (CFYX): Zhejiang, Hangzhou, Beigaofeng (北dzḏ), local collector leg.; 1 telodont male (CXTZ): Hainan, Wuzhishan, Haiyu Middle Line Highway (ädz中"), alt. 800m, 19.V.2025, local collector leg.; 2 females (CXTZ): Hainan, Qiongzhong, Limu Mountain (NJ ḆƜ), Lingquan valley (Kȃë), local collector leg.; 1 priodont male, 1 female (CZHQ): Guizhou, Qiandongnan, Leishan, Longhe Lillage (kāť), Lueguozhai (OiAEặ), alt. 800m, 31.VII.2012, Gui-Qiang Huang leg.; VIETNAM: 1 mesodont male, 1 female (CZHQ; IMS: O1): Ha Giang, ViXuyen, VII.2023, local collector leg.; 2 telodont males, 1 female (CCZB): Nghe An, VI.2022, local collector leg.DNA barcode. The COI gene was amplified and sequenced for three specimens, which were subsequently assigned GenBank accession numbers: O1: PV351610, O3: PV351611, and O4: PV351612.Distribution. Southeastern to south-central China (Guangdong, Guangxi, Yunnan, Fujian, Zhejiang, Hainan, Jiangxi, Guizhou, Hunan); northern Vietnam (Ha Giang, Nghe An, Hoa Binh, Vinh Phuc); northern Laos (Xam Neua).Our specimens from Hainan represent the first provincial record of O. platynota. Additionally, while scattered literature (Fujita 2010; Maruyama 2024; Mizunuma & Nagai 1994) mentions O. platynota in Sichuan Province, these are limited to a few historical reports with no recent corroboration. Given the species’ core distribution across eastern Indochina and southeastern to south-central China, we consider reports of O. platynota in western China’s Sichuan Province biogeographically implausible. These isolated historical records likely represent fake data.