Axinoscymnus beneficus Kamiya, 1963

Peng, Feng, Xie, Xiufeng, Peng, Zhengqiang, Wang, Xingmin & Chen, Xiaoshen, 2022, A taxonomic review of the genus Axinoscymnus Kamiya, with descriptions of three new species (Coleoptera, Coccinellidae), Zootaxa 5154 (4), pp. 431-453 : 441-442

Axinoscymnus beneficus Kamiya, 1963

( Figs 1i–j , 7a–g )

Axinoscymnus beneficus Kamiya, 1963: 128 .— Kamiya 1965: 99, Sasaji 1971: 81, Yang et Wu 1972: 125, Ren et Pang 1992: 20, Yu 1995: 128, Yu et Lau 2001: 153, Pang et al. 2004: 90, Ren et al. 2009: 54.

Diagnosis. This species is similar to A. singaporicus Pang et Gordon in the elytra with brown basal margin but can be separated from the latter by the pointed apex of penis ( Fig. 7e ). In A. singaporicus , the apex of penis is distinctly swollen and blunt according to the illustrations given by Pang & Gordon (1986).

Description. TL: 1.46–1.61 mm, TW: 1.00– 1.14 mm, TH: 0.74–0.91 mm, TL/TW: 1.41–1.46, EL/EW: 1.12– 1.14, PL/PW: 0.46–0.47, HW/PW: 0.65–0.69, PW/EW: 0.71–0.73.

Body oval, moderately convex, dorsum covered with pale yellow pubescence ( Figs 7a–c ). Head, antennae and mouthparts yellow ( Fig. 7c ), tip of mandibles brown. Pronotum and scutellar shield yellow. Elytra black or dark brown, base margin and apical margin yellowish brown ( Figs 7a–c ). Prothoracic hypomeron and prosternum yellow. Mesoventrite black with yellowish brown base. Metaventrite black. Elytral epipleurae black or dark brown with yellowish brown base. Legs yellow.

Head with fine frontal punctures, as large as eye facets, 1.0–2.0 diameters apart. Eye densely faceted, interocular distance 0.25 times of head width ( Fig. 7c ). Inner ocular margin arcuate. Pronotal punctures slightly larger than those on frons, 1.0–1.5 diameters apart. Surface of elytra with punctures 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. 7d ), area enclosed by the lines finely and sparsely punctate, irregularly distributed, relatively narrowly smooth along the lines; ventrite 1 with weekly coarse and sparse punctures at middle.

Male genitalia. Penis short and stout, strongly curved at base, apical 1/3 of penis slightly swollen and narrowing to apex ( Fig. 7e ); tegmen with penis guide stout, parallel at basal 3/4 length, apical narrowing sharply in inner view ( Fig. 7g ), shorter than 1/3 length of parameres; parameres large, elongate oval, apex with several setae ( Fig. 7f ).

Female genitalia. Coxites elongate ( Fig. 1j ), subtriangular, without styli. Spermatheca short and stout, bulbousshaped as shown in Fig. 1i .

Material examined. CHINA: Guangdong: 1♂, Qinshuigu, Nanling National Nature Reserve , 30. IX. 2004 , collector unknown. 1♂, Qinshuigu, Nanling National Nature Reserve , 21. IX. 2005, Ren SX leg. 2♂ 3♀, Huangdong, Shimentai, Yingde , 31. X. 2004, Wang XM leg. 5♂ 8♀, Huangdong, Shimentai, Yingde , 30. X. 2004, Wang XM leg. 3♀, Hengshitang, Shimentai, Yingde , 5. X. 2004, Wang XM leg. 2♂ 1♀, Shimen, Shimentai, Yingde , 29. X. 2004, Wang XM leg. 10♂, Yangqiushan, Shimentai , 6. X. 2004, Wang XM leg. 8♂ 1♀, Nankun Mountains, Huizhou , 21. X. 2004 , Wang XM et al. leg. 1♂, Chebaling , 3. XI. 1989, Zhang J leg. 1♀, Chebaling , 24. III. 1989, Ren SX leg. 1♀, Chebaling , 23. III. 1989, Yu GY leg. Guangxi: 19♂ 10♀, Shili Great Canyon, Maoer Mountains , 19. X. 2004, Wang XM leg. 2♂ 5♀, Maoer Mountains , 20. X. 2004, Wang XM leg. 1♂, Fulong Mountains, Shiwangda Mountains , 7. XI. 2004, Zhang CW leg. Hainan: 1♂, Gancheng , 25. X. 1997, Peng ZQ leg. 1♂, Baoting , 21. VII. 1999, Peng ZQ leg. 1♀, Liangyuan, Danzhou , 14. IV. 1996, Peng ZQ leg. 1♂, Wuzhi Mountains , 21. XI. 1997, Peng ZQ leg. 2♂ 1♀, Dongzhai Port , IX. 1995, Peng ZQ leg. 3♂ 1♀, Wuzhi Mountains , 3. V. 1996, Peng ZQ leg. 3♂ 2♀, Chenxing Farm , Tunchang County, 20. III. 1996, Peng ZQ leg. 1♂, Bawangling , 21. III. 1996, Peng ZQ leg. 1♂ 1♀, Haikou City , VIII. 1995, Peng ZQ leg. 1♀, Jianfeng Town , IX. 1995, Peng ZQ leg. 1♀, Changzheng Farm , Qiongzhong County, 25. IV. 1996, Peng ZQ leg. 1♂ 2♀, Honghua Farm , Lingao County, 22. IV. 1996, Peng ZQ leg. 1♀, Maoyang Town , Qiongzhong County, 2. V. 1996, Peng ZQ leg. 1♂, Wushi , 14. VII. 1999, Peng ZQ leg. 11♂ 20♀, Dongping Farm , Qionghai County, 13. IV. 1996, Peng ZQ leg. 3♀ and 52 specimens, Liangyuan, Danzhou , VIII. 1995, Peng ZQ leg. 3♂ and 16 specimens, Liangyuan, Danzhou , 14. IV. 1996, Peng ZQ leg. 2♂ 4♀ and 6 specimens, Nanfeng Town, Danzhou , VIII. 1995, Peng ZQ leg. 12 specimens, Dongzhai Port , IX. 1995, Peng ZQ leg. 2 specimens, Tongzha City , VIII. 1995, Peng ZQ leg. 3 specimens, Haikou City , VIII. 1995, Peng ZQ leg. 29 specimens, Haikou City , 18. IV. 1996, Peng ZQ leg. 2 specimens, Diaoluo Mountains , 9. V. 1996, Peng ZQ leg. 10 specimens, Changbu, Diaoluo Mountains , VII. 1995, Peng ZQ leg. 69 specimens, Honghua Farm , Lingao County, 22. IV. 1996, Peng ZQ leg. 3 specimens, Dongjiaoyelin, Wenchang , IX. 1995, Peng ZQ leg. 33 specimens, Sandao Farm , Baoting County, IX. 1995, Peng ZQ leg. 21 specimens, Yangjiang Farm , Qiongzhong County, IX. 1995, Peng ZQ leg. 4 specimens, Nanfeng Town, Danzhou City , 15. IV. 1996, Peng ZQ leg. 22 specimens, Nanfang Farm , Qiongzhong County, 25. IV. 1996, Peng ZQ leg. Hunan: 1♂, Mangshan Mountains , 3. X. 2004, Ren SX leg. Taiwan: 1♀, Nanheng Highway, Chishang , Taidong, ca 679 m, 29. X. 2012, Chen XS leg. 1♀, Shuangliu , Pingdong, ca 200–400 m, 27. X. 2012, Chen XS leg. Guizhou : 1♂, Sancha River, Maolan , ca 750 m, 19. X. 2008, Chen XS leg. 1♂ 1♀, Dongtang, Maolan, Libo , ca 730 m, 15–18. X. 2008 , Chen XS et al. leg. 1♂, Xiaodan River, Leigong Mountains , 13. VIII. 2006, Wang XM leg. Yunnan : 1♂, Meng’a, Menghai , ca 1170 m, 12. V. 2009, Chen XS leg.

Distribution. China (Guangdong, Guangxi, Hainan, Hunan, Taiwan, Guizhou, Yunnan, Hongkong); Japan.

Figures

FIGURE 1. Main characters of the genus Axinoscymnus Kamiya: a–h Axinoscymnus pingxiangicus Peng et Chen, sp. n.: a head b prothorax, ventral view c prothorax, frontal view d hind leg e labium f antenna g maxilla h mandible i–j Axinoscymnus beneficus Kamiya, 1963: i spermatheca j coxites. Scale bars: 0.1 mm.

FIGURE 7. Axinoscymnus beneficus Kamiya, 1963: 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.