Bivincula diaphana (Moore, 1879)

Wang, Xing, Wang, Min, Zolotuhin, Vadim V., Hirowatari, Toshiya, Wu, Shipher & Huang, Guo-Hua, 2015, The fauna of the family Bombycidae sensu lato (Insecta, Lepidoptera, Bombycoidea) from Mainland China, Taiwan and Hainan Islands, Zootaxa 3989 (1), pp. 1-138 : 44-45

25. Bivincula diaphana (Moore, 1879) ( FIGURES 16–16 D, 17A)

Ocinara diaphana Moore, 1879 , Ind. Lep. Insects Colln. Atk.: 83. TL: Khasia Hills. Holotype by monotypy: male (ZMHU) [examined].

Diagnosis. Characterized by costal margins of fore- and hindwings edged with yellow scales, uncus with pointed apex, valva sickle-shaped distally, saccus long and slender, and aedeagus slender and straight.

Specimens examined. [YUNNAN] Yingjiang County (Tongbiguan Provincial NR): 1 male, 21.VI.2005, Guo-Hua Huang, Liu-Sheng Chen & Jing-Xian Liu leg. (HUNAU); Xishuangbanna Dai Autonomous: 1 male, Puwen, 30 km southwest of Simao city, 900 m, 10–30.IV.2000, 22˚30’N, 100˚02’E, Brechlin’s local collector leg. (MWM); Daxingsi (10 km west of Yunxian County in Lincang district): 5 males, 120 km south of Dali city, 1200 m, 16.III–10.IV.2000, 24˚30’N, 100˚01’E, Brechlin’s local collector leg. (MWM); Mt. Manxieba: 3 males and 2 females, 18 km south of Simao city, 22˚28’N, 101˚01’E, 16.III–10.IV.2000, Dr. R. Brehlin & his local collector leg. (MWM).

Bionomics. Adults fly in winter and summer in southern China.

Map 10. Distribution of Bivincula spp. mainly in China.

Distribution. Mainland China (Yunnan), Vietnam, Thailand, Myanmar and India. Remarks. The species differs from B. watsoni in the absence of the black markings on the forewing and abdominal margin.

Figures

FIGURE 16. Adults of Bivincula spp. A. B. diaphana, male (Thailand); B. B. diaphana, female (Thailand); C. B. diaphana, male (Yunnan); D. B. diaphana, female (Yunnan); E. B. kalikotei, female (Yunnan); F. B. watsoni, male (Yunnan).