## 3 Results
Head with lateral margins slightly divergent posteriad, dorsal surface with dense and contiguous punctation except on frons, where punctation is shallow and less dense; ventral surface densely punctate with large portions at posterior angles impunctate; antennae with club cylindrical, antennomeres 1-3 distinctly oblong, antennomere 2 shorter than antennomere 3, antennomeres 4-10 longer than wide, antennomere 11 longer than penultimate, antennomeres 8-10 slightly asymmetrical, antennomere 11 asymmetrical. Pronotum widest at anterior angles, anterior angles distinctly prominent, lateral margins distinctly curved ventral slightly in front of midlength; dorsal surface with punctures similar to those of head; an impunctate midline exists in posterior third. Elytra with lateral margins slightly divergent posteriad, punctation very dense and fine. Scutellum densely and finely punctate, pupescence black. Abdominal tergites with dense punctation and short pupescence. Male. Sternite VIII with posterior margin emarginate in the middle; aedeagus (Figure 4E-H) symmetrical, median lobe elongated, middle portion weakly sclerotized, nearly transparent, inner sac with sclerotized sclerites; paramere very short, separated into two pieces with few apical setae. Figure 3: **(A–F)** Adult habitus of _Naddia_. **(A,B)**_N. mangshanensis_; **(C,D)**_N. chenchangchini_ (paratype); **(E,F)**_N. nanlingensis_. Scale bars = 2 mm. Female. Sternite VIII with posterior margin entire. **Distribution**. China (Guangxi). **Diagnosis. ** The new brachyperous species is extremely similar to \(N\). _mangshanensis_, but it can be distinguished from the latter by in average larger size, abdominal tergite VI with longitudinal golden pubescent patches laterally, lobes of paramere more distinctly pointed and with longer apical setae (Figure 4E-H). **Eymology. ** This species is named in honor of Mr. [PERSON], who donated _[PERSON]_ specimens of the new species to us. _Nadia nanlingensis_**[PERSON] & Zhou, 2010  
_Nadia nanlingensis_ [PERSON] & Zhou, 2010, 3. **Material examined. China: Guangdong:** 1%, Ruyuan County, Nanling N. R., Laopengkeng, mixed forest, leaf litter, wood sifted, alt. 1360 m, 29 April 2015, [PERSON], Tu & Zhou leg. (SHNU); **Hunan:** 2\(\sigma\)\(\sigma\), Mangshan N. R., PT, 10 May 2020. (SHNU). **Measurements**. Male: BL: 17.8-18.3 mm, FL: 10.0-10.1 mm. HL: 3.34 mm, HW: 3.50-3.67 mm, CL: 0.89-0.95 mm, PO: 1.89-2.00 mm, PL: 3.61-3.67 mm, PW: 3.11-3.22 mm,  
Figure 4: **(A–H)** Aedeagus of _Nadia_. **(A–D)**_N. mangshanensis_. **(A,B)** ventral view; **(C,D)** lateral view. **(E–H)**_N. denchangchini_. **(E,F)** ventral view; **(G,H)** lateral view. Scale bars = 0.5 mm. EL: 3.06 mm, EW: 3.34-3.45 mm. HW/HL: 1.05-1.10, PO/CL: 2.00-2.25, PL/PW: 1.12-1.18, EL/EW: 0.89-0.92. Female: BL: 17.8 mm, FL: 10.6 mm. HL: 3.50 mm, HW: 3.61 mm, CL: 0.83 mm, PO: 2.11 mm, PL: 3.61 mm, PW: 3.34 mm, EL: 3.34 mm, EW: 3. 45 mm. HW/HL: 1.03, PO/CL: 2.53, PL/PW: 1.08, EL/EW: 0.97. **Distribution**. China (Guangdong, Hunan). **Diagnosis**. The brachypterous species is somewhat similar to _N. mangshanensis_ with overlapping distribution, but it can be easily distinguished from the latter by the following characteristics: elytra black without bronze tint, apical margin of terminal antennal segment markedly concave, forming an acute tip, ventral side of head without impunctate areas at posterior angles. _Naddia atripes [PERSON]_, **1939**  
_Naddia atripes_ [PERSON], **1939**  
**Material examined. China: Zhejiang: 1\(\circ\)**, Longquan, Fengyang Mt., Mihou Valley, alt. 950 m, 09 May 2019, [PERSON] & [PERSON] leg. (SHNU); 1\(\circ\)**, Qingliangfeng N. R., Longtangshan, alt. 1100 m, 12 May 2012, [PERSON], [PERSON] & [PERSON] leg. (SHNU); 1\(\circ\)**, Longquan City, Fengyangshan N. R., Datianping, alt. 1350 m, 30 April 2016, [PERSON], [PERSON] & [PERSON] leg. (SHNU); 1\(\circ\)**, Jiande City, Chunan County, Qiantdaohu, alt. 110 m, July 2013, [PERSON] leg. (SHNU); 1\(\circ\)**, Pan'an County, Yuantang Linchang, alt. 1800 m, 16 July 2012, [PERSON] leg.