Appendix 1 Specimens examined.

Trimerodytes annularis (n=6) China. —Fujian Province. CIB 11460, CIB 11461, CIB 11466, Wuyishan City, Mt. Wuyi,Xing Village. —Zhejiang Province. CIB 78066. —Guangxi Zhuang Autonomous Region. CIB 109020, 109021.

Trimerodytes aequifaciatus (n=3) China. —Hunan Province. CIB 11435, CIB 11436, Yizhang County, Mt. Mangshan.—Fujian Province. CIB 109019, Wuyishan City, Mt. Wuyi.

Trimerodytes balteatus (n=6) China. —Guangxi Zhuang Autonomous Region. CIB 9971, Guigang City; YBU 16015,YBU 16060, Cangwu County; CIB 109017. —Guangdong Province. CIB 109018, Zhaoqing City, Mt. Dinghu;SYS r001677, Luoding City.

Trimerodytes percarinatus (n=5) China. —Fujian Province. CIB 109022, CIB 109023, Wuyishan City, Mt. Wuyi. —Sichuan Province. CIB 102922–102924, Chengdu City.

Opisthotropis andersonii (n=12) China. —Hong Kong. SYS r001423, HK Island, Tai Tam; SYS r001424, Tai Mo Shan.—Guangdong Province. SYS r000607, SYS r001017, SYS r001020, SYS r001082, SYS r001672, SYS r001673,Shenzhen City, Mt. Wutong; SYS r000803, Shenzhen City, Mt. Yangtai; SYS r000893, Shenzhen City, Dapeng Peninsula; SYS r001382, SYS r001383, Guangzhou City, Mt. Maofeng.

Opisthotropis cheni (n=31) China. —Hunan Province. CIB 78146–78149, SYS r000369, Yizhang County, Mt.Mangshan; SYS r000300, Shuangpai County, Mt. Yangming. —Guangdong Province. CIB 98273, KIZ 04752,KIZ 04759, SYS r000007, SYS r000010, SYS r000040, SYS r000045, SYS r000050, SYS r001293–r001295,YBU 12110, YBU 071040, YBU 071042, YBU 071046–071050, Ruyuan County, Nanling National Nature Reserve; SYS r000764, SYS r001688, SYS r001743, SYS r001808, Yingde City, Shimentai Nature Reserve; SYS r000934, Lianzhou City, Mt. Dadong. —Guangxi Zhuang Autonomous Region. SYS r001804, Guanyang County,Qianjiadong Nature Reserve.

Opisthotropis cucae (n=1) Vietnam. —Kon Tum Province. IEBR A.0924 (holotype), Sa Thay District, Chu Mom Ray National Park.

Opisthotropis guangxiensis (n=19) China. —Guangxi Zhuang Autonomous Region. KIZ 01597, KIZ 01598, KIZ 027352, SYS r001477, Jinxiu County, Mt. Dayao; KIZ 027369, Xing’an City, Mt. Maoer; SYS r001736, SYS r001739, SYS r001740, Nanning City, Wuming District, Mt. Daming; SYS r001547–r001549, Longsheng County,Huaping National Nature Reserve. —Guangdong Province. KIZ 024824–024826, Luoding City, Fuhe Town; SYS r001446, SYS r001447, SYS r001686, SYS r001799, Xinyi County, Dawuling Nature Reserve. —Hunan Province.KIZ 08792, Jiangyong County.

Opisthotropis jacobi (n=3) Vietnam. —Vinh Phuc Province. VNMN 06219–06221, Tamdao, Tamdao National Park.

Opisthotropis kuatunensis (n=15) China. —Fujian Province. SYS r001008, Shanghang County, Gutian Town; SYS r001746, Dehua County, Mt. Daiyun. —Jiangxi Province. SYS r001851, Guixi City, Yangjifeng National Nature Reserve; SYS r000737, SYS r000745, Shangrao City, Guangfeng District, Tongboshan Nature Reserve; SYS r000998, Yongxin County, Qixiling Nature Reserve; SYS r000356, Jinggangshan City, Mt. Jinggang. —Guangdong Province. SYS r000606, SYS r000615, SYS r000623, SYS r001081, Shenzhen City, Mt. Wutong. —Hong Kong.KIZ 05770, KIZ 05776, Tsuen Wan District. —Unknown locality. SYS r000026, SYS r00576.

Opisthotropis lateralis (n=38) China. —Guangxi Zhuang Autonomous Region. SYS r000262, Jingxi County, Xinling Village; SYS r000394, Shangsi County, Shiwandashan National Nature Reserve; YBU 14465, YBU 14477–14479,Fangchenggang City, Fangcheng District, Fulong; YBU 14516–14523, Guigang City, Mt. Pingtian; KIZ 79074,Beiliu City, Mt. Darong; YBU 091014. —Guangdong Province. SYS r000951, Fengkai County, Heishiding Nature Reserve; SYS r001149, Zhaoqing City, Mt. Dinghu; SYS r000608, SYS r000612, SYS r000616, SYS r001019,SYS r001080, SYS r001389, SYS r001671, Shenzhen City, Mt. Wutong.—Yunnan Province. CIB 103778, CIB 103779, Hekou County. —Hainan Province. SYS r000367, Haikou City, Dazhipo Town. —Hong Kong. KIZ 05768, KIZ 05774, Tsuen Wan District. Vietnam. —Cao Bang Province. VNMN A.2016.15. —Quang Ninh Province. VNMN A.2016.14, Bai Tu Long; IEBR A.2016.35, Dong Son Ky Thuong. —Bac Giang Province. IEBR A.2016.36, IEBR 3629, IEBR 3644, IEBR 3645, Tay Yen Tu. —Quang Nam Province. IEBR.83, Mt. Ngoc Linh.

Opisthotropis latouchii (n=68) China. —Fujian Province (n=18). SYS r001289, Wuyishan City, Guadun Village; CIB 9983, CIB 9988, CIB 9990–9994, CIB 9998–10000, Wuyishan City, Tongmu Village; SYS r000671, Wuyishan City, San’gang Village; KIZ 01984, SYS r000670, SYS r000677, SYS r001723, Wuyishan City, Mt. Wuyi; SYS r001287, Shaowu City, Longhu Forestry Station; SYS r001724, Ninghua County, Mt. Yashu. —Jiangxi Province(n=24). SYS r000296, SYS r000309, SYS r000358, SYS r000359, SYS r000421–r000423, SYS r000991,SYSr000993, SYS r001253, SYS r001255, SYS r001298, SYS r001300, SYS r001303–r001306, Jinggangshan City, Mt. Jinggang; SYS r000776, Shangrao City, Guangfeng District, Tongboshan Nature Reserve; SYS r000961,Chongyi County, Qiyunshan Nature Reserve; SYS r000979, SYS r001470, Anfu County, Mt. Wugong; SYS r000987, Jing’an County, Jiulingshan Nature Reserve; SYS r001004, Anyuan County, Sanbaishan; SYS r001370,Xinfeng County, Mt. Jinpen. —Zhejiang Province (n=1). SYS r001771, Pan’an County, Mt. Dapan. —Guangxi Zhuang Autonomous Region (n=8). KIZ 07638, Gongcheng County; SYS r000843, Jinxiu County, Dayaoshan National Nature Reserve; SYS r000853, Lingui County, Huaping National Nature Reserve; SYS r001846, Fuchuan County, Yangxi Village; KIZ 024859, KIZ 024893, KIZ 027354, SYS r001530. —Guangdong Province (n=3). SYS r000753, SYS r001449, Renhua County, Huangshakeng Village; SYS r001628, Shixing County, Mt. Longdoufeng.—Hunan Province (n=13). SYS r001322, Hengshan County, Mt. Hengshan; SYS r001468, Hengdong County,Chuankou Town; SYS r001791, Liuyang City, Dawei National Forest Park; SYS r001793, SYS r001794, Zixing City, Dongjiang Lake; SYS r000368, SYS r000371, Yizhang County, Mt. Mangshan; SYS r000823–r000825,Yanling County, Taoyuandong National Nature Reserve; KIZ 04527, KIZ 04528, Taoyuan County; SYS r001646,Pingjiang County, Mt. Mubu. —Guizhou Province (n=1). KIZ 057014, Leishan County, Qilichong Village.

Opisthotropis laui (n=6) China. —Guangdong Province. SYS r001161, SYS r001169–r001171, Taishan City,Shangchuan Island; SYS r001622, SYS r001623, Enping City, Qixingkeng Natural Reserve.

Opisthotropis maculosa (n=8) China. —Guangxi Zhuang Autonomous Region. SYS r000393, SYS r000537, SYS r000538, Shangsi County, Shiwandashan National Nature Reserve. —Guangdong Province. SYS r000946, SYS r001350, SYS r001525, Fengkai County, Heishiding Nature Reserve; SYS r001515, Xinyi County, Dawuling Nature Reserve. Vietnam. —Quang Ninh Province. IEBR A.2016.34, Hai Ha District, Tai Chi Village.

Opisthotropis maxwelli (n=7) China. —Fujian Province. SYS r001053, Nanjing County, Huboliao Nature Reserve;SYS r001273, Shanghang County, Wulong Village; KIZ 024861, Zherong County. —Guangdong Province. SYS r000841, Nan’ao County, Nan’ao Island; SYS r001454, SYS r001571, SYS r001572, Fengshun County, Mt.Tongguzhang.

Opisthotropis shenzhenensis (n=6) China. —Guangdong Province. SYS r000635, SYS r000636, SYS r001018(holotype), Shenzhen City, Mt. Wutong; SYS r001021, Shenzhen City, Sanzhoutian; SYS r001032, Shenzhen City,Mt. Tiantou; SYS r001145, Dongguan City, Mt. Yinping.

Opisthotropis tamdaoensis (n=6) Vietnam. —Vinh Phuc Province. VNUH 010606 (holotype), IEBR A.2016.32, IEBR A.2016.33, VNMN 06216, VNMN 06217, VNMN 06222, Tam Dao.

Opisthotropis zhaoermii (n=3) China. Hunan Province. CIB 109998–110000 (type series), Guzhang County, Zuolong Gorges.