## 3 Results
(NMW); 2\(\sigma\)\(\circ\)\(\sigma\), same, but 25 June-17 July 2007 (NMW); 2\(\sigma\)\(\circ\)\(\sigma\), Jiuxian Shan, 25\({}^{\circ}\)42\({}^{\prime}\) N, 118\({}^{\circ}\)07\({}^{\prime}\) E, alt. 1350 m, 25 June-17 July 2007, [PERSON] leg. (NMW); 11\(\circ\)\(\sigma\), -10 km E Yong'an, 25\({}^{\circ}\)58\({}^{\prime}\) N, 117\({}^{\circ}\)27\({}^{\prime}\) E, alt. 700 m, 28 April-31 May 2008, [PERSON] leg. (NMW); 1\(\circ\)\(\sigma\), Mandangshan, 26\({}^{\circ}\)42\({}^{\prime}\) N, 118\({}^{\circ}\)07\({}^{\prime}\) E, alt. 460-900 m, 8 May-4 June 2010, [PERSON] leg. (NMW); 9\(\circ\)\(\circ\)\(\sigma\), Tiantaishan For. Park, 25\({}^{\circ}\)43\({}^{\prime}\) N, 117\({}^{\circ}\)17\({}^{\prime}\) E, alt. 1100-1200 m, 20 May-27 June 2011, [PERSON] leg. (NMW); **Guangdong**: 1\(\circ\), Yunji Shan Nat. Res., 24\({}^{\circ}\)06-07\({}^{\prime}\) N, 114\({}^{\circ}\)10\({}^{\prime}\) E, alt. 700-1300 m, 13-23 June 2013, Jatua leg. (NMW); 2\(\sigma\)\(\circ\)\(\sigma\), Pingyun Shan, 22\({}^{\circ}\)00\({}^{\prime}\) N, 111\({}^{\circ}\)10\({}^{\prime}\) E, alt. 1000 m, 6-25 June 2015, Jatua leg. (NMW); 1\(\circ\), Dachou Ding, 24\({}^{\circ}\)16-17\({}^{\prime}\) N, 112\({}^{\circ}\)24\({}^{\prime}\) E, alt. 680-850 m, 10-30 June 2015, Jatua leg. (NMW); **Vietnam: Cao Bang:** Pia Ouac Nat. Park, bel. Salmon Station, ca. 1360 m, 22\({}^{\circ}\)35\({}^{\prime}\)40\({}^{\prime}\) N, 105\({}^{\circ}\)53\({}^{\prime}\)22\({}^{\prime\prime}\) E, 9-18 May 2019, FIT, Brunke & Schillhammer leg. [20A] (NMW). **Measurements**. Male: BL: 15.0-20.0 mm, FL: 8.9-10.0 mm. HL: 2.84-30.6 mm, HW: 3.06-3.45 mm, CL: 0.95-1.06 mm, PO: 1.45-1.56 mm, PL: 2.78-3.34 mm, PW: 2.95-3.06 mm, EL: 3.61-3.89 mm, EW: 3.78-4.06 mm. HW/HL: 1.08-1.18, PO/CL: 1.37-1.65, PL/PW: 0.91-1.09, EL/EW: 0.96-1.00. Female: BL: 13.3-18.3 mm, FL: 8.9-10.0 mm. HL: 2.78-3.17 mm, HW: 3.17-3.34 mm, CL: 0.89-1.06 mm, PO: 1.39-1.67 mm, PL: 2.78-3.34 mm, PW: 2.89-3.34 mm, EL: 3.61-4.17 mm, EW: 3.78-4.45 mm. HW/HL: 1.04-1.18, PO/CL: 1.37-1.67, PL/PW: 0.96-1.02, EL/EW: 0.93-1.00. **Distribution**. The species is widely distributed in Southern and Southeastern China (Zhejiang, Jiangxi, Shaanxi, Guangxi, Jiangsu, Hunan, Hubei, Sichuan, Guizhou, Fujian, Guangdong). New to Vietnam and all Chinese provinces except Zhejiang. **Diagnosis. ** The species is very similar to _N. isihharai_ from Taiwan, but it can be distinguished from the latter by more asymmetrical antennal club and more distinct patch of silvery pubescence on abdominal tergites VI and VII (Figures 5A,B and 6E-H). _Naddia isiharai_**[PERSON], 1994**  
_Naddia isiharai_**[PERSON], 1994**, 315. **Material examined**. None. **Distribution**. China (Taiwan). _Naddia rufipennis_**[PERSON], 1915**  
_Naddia rufipennis_**[PERSON], 1915**, 54. **Material examined. China: Yunnan:** 1\(\circ\), Xishuangbanna, Jinghong City, Gasa Town, Nanpaxiaozhai, ca. 1100 m, 25 March 2021, Hui Ce leg. (SHNU). **Measurements**. Male: BL: 14.3 mm, FL: 8.5 mm. HL: 2.50 mm, HW: 2.67 mm, CL: 0.95 mm, PO: 1.11 mm, PL: 2.78 mm, PW: 2.50 mm, EL: 3.22 mm, EW: 3.00 mm. HW/HL: 1.07, PO/CL: 1.18, PL/PW: 1.11, EL/EW: 1.07. **Distribution**. China (Yunnan), Myanmar. **Diagnosis. ** This species can be easily recognized by its unique coloration. _Naddia monticola [PERSON], 1994_  
_Naddia monticola_**[PERSON], 1994**, 318. **Material examined. China: Taiwan:** 1\(\circ\), Kaohsiung, Duonalindao, 10 September 2014, B.-[PERSON] leg. (SHNU). **Measurements**. Male: BL: 15.0 mm, FL: 8.3 mm. HL: 2.56 mm, HW: 2.67 mm, CL: 0.78 mm, PO: 1.39 mm, PL: 2.78 mm, PW: 2.61 mm, EL: 3.17 mm, EW: 3.34 mm. HW/HL: 1.04, PO/CL: 1.79, PL/PW: 1.06, EL/EW: 0.95. **Distribution**. China (Taiwan). **Diagnosis. ** The species is similar to the new species _N. hujuyaoi_, and it may be distinguished from the latter by differently shaped patch of silvery pubescence on the elytral disc (Figure 5E) and shorter aedeagal paramere compared with median lobe (Figure 7E-H). **Naddia Inujiayaoi Xia, [PERSON] sp. nov. Type material. Holotype.