A taxonomic review of the genus Axinoscymnus Kamiya, with descriptions of three new species (Coleoptera, Coccinellidae) Author Peng, Feng 0000-0002-7797-5709 Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou 510642, China. & Engineering Research Center of Biocontrol, Ministry of Education and Guangdong Province, Guangzhou 510640, China. pengfengscau@foxmail.com Author Xie, Xiufeng Guangdong Agricultural Industry Business Polytechnic College, Guangzhou 510507, China. xfxie @ gdaib. edu. cn; https: // orcid. org / 0000 - 0001 - 6194 - 8215 xfxie@gdaib.edu.cn Author Peng, Zhengqiang 0000-0003-2955-5475 Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Science, Haikou 571101, China. lypzhq @ 163. com; https: // orcid. org / 0000 - 0003 - 2955 - 5475 Author Wang, Xingmin Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou 510642, China. & Engineering Research Center of Biocontrol, Ministry of Education and Guangdong Province, Guangzhou 510640, China. Author Chen, Xiaoshen 0000-0002-7797-5709 Key Laboratory of Bio-Pesticide Innovation and Application, Guangdong Province, Guangzhou 510642, China. & Engineering Research Center of Biocontrol, Ministry of Education and Guangdong Province, Guangzhou 510640, China. pengfengscau@foxmail.com text Zootaxa 2022 2022-06-16 5154 4 431 453 journal article 77021 10.11646/zootaxa.5154.4.2 e1ea834c-b925-4a1c-889d-046e2be85f24 1175-5326 6651155 31D92E4A-65EE-4005-9A0F-042E17EB073C Axinoscymnus nigripennis Kamiya, 1965 ( Figs 12a–g ) Axinoscymnus nigripennis Kamiya, 1965: 100 .— Sasaji 1971: 115 , Yang et Wu 1972: 125 , Ren et Pang 1992: 21 , Pang et al . 2004: 90 . Diagnosis. This species is similar to A. pingxiangicus Peng et Chen , sp. n. in external appearance and male genitalia but can be separated from the latter by the ventrite 1 with coarse punctures at middle ( Fig. 12d ), and the penis guide swollen at base in lateral view ( Fig. 12f ). It also resembles A. rai Kamiya in the shape of male genitalia but can be easily distinguished from the latter by the black elytra ( Fig. 12a ). Description. TL: 1.38–1.69 mm , TW: 0.95–1.19 mm , TH: 0.66–0.87 mm , TL/TW: 1.42–1.46 EL/EW: 1.10– 1.11, PL/PW: 0.50–0.54, HW/PW: 0.64–0.73, PW/EW: 0.68–0.72. Body oval, moderately convex, dorsum with pale yellow pubescence ( Figs 12a–c ). Head, antennae and mouthparts yellowish brown ( Fig. 12c ), tip of mandibles dark brown. Pronotum yellowish brown. Scutellar shield dark brown. Elytra black ( Figs 12a, 12c ). Prothoracic hypomeron and prosternum yellow. Mesoventrite and metaventrite black. Elytral epipleurae black or dark brown. Legs yellowish brown. Head with fine frontal punctures, slightly larger than eye facets, 1.0–1.5 diameters apart. Eye densely faceted, interocular distance about 0.3 times of head width ( Fig. 12c ). Pronotal punctures slightly larger than those on frons, 1.0–1.5 diameters apart. Surface of elytra with punctures much larger than those on pronotum, separated by 1.0–2.0 diameters. Abdominal postcoxal lines complete and moderately recurved, reaching 3/4 length of ventrite 1 ( Fig. 12d ), area enclosed by the lines finely and sparsely punctate, irregularly distributed, broadly smooth along the lines; ventrite 1 with strongly coarse and sparse punctures at middle. Male genitalia. Penis slender, base of penis slightly broadened, narrowing to apex ( Fig. 12e ); tegmen with penis guide stout, swollen at basal half, then abruptly converging to pointed tip in lateral view ( Fig. 12f ), slightly longer than 2/3 length of parameres; in inner view, penis guide parallel sided from base to 3/4, then gradually tapering to pointed apex ( Fig. 12g ); parameres elongate oval with several setae at apex in lateral view ( Fig. 12f ). FIGURE 12. Axinoscymnus nigripennis Kamiya, 1965 : a dorsal view b lateral view c frontal view d abdomen e penis f tegmen, lateral view g tegmen, inner view. Scale bars: a–c: 0.5 mm, d: 0.1 mm, e–g: 0.05 mm. Material examined. CHINA : Guangxi : 4♂ 5♀ , Gaozhai , Maoershan Mountains , 20. X. 2004 , Wang XM leg. 2♂ 4♀ , Shili Great Canyon , Maoershan Mountains , 19. X. 2004 , Wang XM leg. 1♀ , Maoershan Mountains , 17. X. 2004 , Wang XM leg. 1♂ , Fulongshan Mountains , Shiwandashan Mountains , 8. XI. 2004 , Zhang CW leg. 1♂ , Hongqi Forestry Station , Shiwandashan Mountains , 9. XI. 2004 , Lv XB leg. 1♂ 1♀ , Hongqi Forestry Station , Shiwandashan Mountains , 10. XI. 2004 , Zhang CW leg. 2♂ 2♀ , Hongqi Forestry Station , Shiwandashan Mountains , 6–8. XI. 2004 , Wang XM leg. 1♀ , Hongqi Forestry Station , Shiwandashan Mountains , 26. VII. 2005 , Ren SX leg. Guizhou : 1♂ 1♀ , Dongtang , Maolan , Libo , ca 730 m , 15–18. X. 2008 , Chen XS et al. leg . 3♀ , Sancha River , Maolan , ca 750 m , 19. X. 2008 , Chen XS et al. leg . 1♂ , Wengang , Maolan , Libo , ca 750 m , 20–23. X. 2008 , Chen XS et al. leg . Hunan : 1♀ , Shennong Valley , Yanling , ca 1100 m , 7. X. 2010 , Wang XM et al. leg . 2♂ 1♀ , Shennong Valley , Yanling , ca 1000 m , 8. X. 2010 , Wang XM et al. leg . 1♂ 1♀ , Shennong Valley , Yanling , ca 650–800 m , 9. X. 2010 , Wang XM et al. leg . Anhui : 3♂ 3♀ , Guniujiang , Shitai , 24. IX. 2010 , Wang XM et al. leg . Hainan : 1♂ , Limushan Mountains , 22. VII. 2006 , Wang XM leg. 1♂ , Diaoluoshan Mountains , 7. V . 2005 , Wang XM leg. Guangdong . 1♂ 1♀ , Shimen , Shimentai N , 29. X. 2004 , Wang XM leg. 2♂ , Huangdong , Shimentai , 30. X. 2004 , Wang XM leg. 1♂ , Yangqiushan Mountains , Shimentai , 6. X. 2004 , Wang XM leg. 3♂ 3♀ , Wulangfeng , Shimentai , 8. X. 2004 , Wang XM leg. 1♂ 1♀ , Nankunshan Mountains , Huizhou , 21. X. 2004 , Wang XM leg. Taiwan : 1♂ 1♀ , Tongmen to tailuge, ca 200–912 m , 30. X. 2012 , Chen XS et al. leg . 2♀ , Zhiben , Taidong , ca 230 m , 28. X. 2012 , Chen XS et al. leg . 1♀ , Nanheng Highway , Chishang , Taidong , ca 679 m , 29. X. 2012 , Chen XS et al. leg . 1♀ , Jiaxian to Tengzhi , ca 370–1450 m , 25. X. 2012 , Chen XS et al. leg. Hongkong : 1♂ 4♀ , Country Parks , Shuitang , Chengmen , ca 206 m , 13. V . 2018 , Wang XM leg. 1♀ , Country Parks , Baxianling , ca 91 m , 13. V . 2018 , Wang XM leg. LAOS : 1♂ , Nam Phao , Bolikhamxai , ca 700 m , 26. V . 2007 , Wang XM et al. leg . Distribution. China ( Guangxi , Guizhou , Hunan , Anhui , Hainan , Guangdong , Taiwan , Hognkong); Laos ; Japan . Remarks. This species is recorded from Laos for the first time.