Anomala siamensis ( NONFRIED, 1891 )

Wang, Fa-Lei & Zorn, Carsten, 2021, Description of a new species and new faunistic records of the genus Anomala SAMOUELLE (Coleoptera, Scarabaeidae, Rutelinae) from China and neighboring regions, Beiträge Zur Entomologie = Contributions to Entomology 71 (1), pp. 147-159 : 152

Anomala siamensis ( NONFRIED, 1891)

( Figs 20 , 46–49 )

Distribution: Thailand; China (new country record):

Yunnan; Laos (new country record).

Type material: Syntypes [?]. 1  ( MFNB), Coll. Nonfried. Siam / Aprosterna siamensis Type Nonfr. [Ohaus’s handwriting] / Anomala siamensis Bang-Pain Type A. F. Nonfried [possibly Nonfried’s handwriting]; 1  ( MFNB), Siam Nonfried / Heteroplia n. sp. / Aprosterna siamensis Cotype Nonfr. [Ohaus’s handwriting].

Note: It is not entirely certain that these two specimens from Ohaus’s collection are real syntypes of Aprosterna siamensis NONFRIED, 1891 because they do not bear Nonfried’s type label (compare with the label shown in HORN et al. 1990).

Other specimens examined: CHINA: Yunnan: 1  ( FLWC), Menglun, Xishuangbanna , 15.IV.2019, Zi-Chun Xiong leg. ; LAOS: 1  ( CZGG), Laos NW, Nam Tha NPA, 65 km nw Luang Nam Tha, 1050 m, 8-15.IV.2010, S. Murzin leg. ; 1  ( PPPC), LAOS centr 27.IV.-1.V. 1997. 70 km NE Vientiane, Ban Phabat env., 150 m N 18°16.1'E 103°10.9'E. Jendek & O. Sausa leg. ; 1  ( PPPC), S Laos Attapu, Nong Lom (lake), 18-30.IV. 1999, 800 m, 15°02'N, 106°35'E, M. Strba leg. THAILAND: 1  ( PLPC), THAILAND: Phayao Prov. Naresuan University; lights on campus; 19. April 2003; L-467 Vitheepradit, Prommi, Setaphan; 1  ( AHPC), Thailand , 9.11.1992 12 km SW Pak-Chong 130 km NO Bangkok Mischobstplantage, 400 m Lichtfang, Thielen leg. ; 1  ( PLPC), Thailand, Ubon Ratchathani Prov., Phu Chong Na Yoi National Park, Kaeng Ka Loa , 11. April 2004, 182 m, 14°26.178'N 105°16.631E, Sites & Vitheepradit leg. ; 3 , 1  ( CZGG), NW Thailand, Mae Hong Son, Pan Huai Po , 1600 m, 9-16.V.1991, leg. P. Pachlátko ; 1  ( CZGG), NW Thailand, Chom Thong , 24-27.IV.1991, leg. Pacholátko.

Remarks: PAULIAN (1959) misidentified Anomala anguliceps as A. siamensis , but later ZORN et al. (2017) corrected this identification based on the male genitalia illustrated in PAULIAN (1959). Also, YANG (1989) misidentified A. anguliceps as A. siamensis when reporting this species from Guizhou, China. Both species mentioned above were also confused by LIN (1987, 1992, 2002b), who consequently described A. corneola LIN, 2002 , which was subsequently synonymized with A. anguliceps by PROKOFIEV (2014).

In fact, Anomala siamensis is similar to A. bilobata ARROw, 1912 and A. fissilabris ARROw, 1912 rather than A. anguliceps . Both A. bilobata and A. fissilabris have a bilobed clypeus in males, which is the same in males of A. siamensis , while the clypeal front margin is straight in A. anguliceps . Anomala siamensis was previously known only from Thailand, here this species is newly recorded from China and Laos.

Figures

Figs 13–21: Male habitus of Anomala spp., male. – 13. A. anguliceps (Emei Mount, Sichuan). 14. A. anthracina (Gongshan County, Yunnan). 15. A. bilobata (Yingjiang County, Yunnan). 16. A. callifera (Gongshan County, Yunnan). 17. A. cantorioides (Mengla, Yunnan). 18. A. fusitibia (Yingjiang County, Yunnan). 19. A. kuatuna (Jinxiu County, Guangxi). 20. A. siamensis (Menglun County, Yunnan). 21. A. xanthoptera (Yingjiang County, Yunnan).

Figs 22–52: Aedeagus of Anomala spp., male. – 22–24. A. anguliceps (Emei Mount, Sichuan). 25–28. A. anthracina (Gongshan County, Yunnan). 29–32. A. bilobata (Yingjiang County, Yunnan). 33–35. A. callifera (Gongshan County, Yunnan). 36-39. A. cantorioides (Mengla, Yunnan). 40–42. A. fusitibia (Yingjiang County, Yunnan). 43–45. A. kuatuna (Jinxiu County, Guangxi). 46–49. A. siamensis (Menglun County, Yunnan). 50–52. A. xanthoptera (Yingjiang County, Yunnan). 22, 25, 29, 33, 36, 40, 43, 46, 50. dorsal view. 23, 26, 30, 34, 37, 41, 44, 47, 51. ventral view. 24, 28, 31, 35, 38, 42, 45, 48, 52. lateral view from right. 28, 39. lateral view from left. 32, 49. frontal view.