Isodemis proxima Razowski, 2000 Figs 514

Isodemis proxima Razowski 2000: 325. Type locality: Taiwan.

Material examined.

1 ♂, China, Guangxi Province: Mt. Pinglong, Shangsi County (22°09'N, 107°58'E), 250 m, 7.IV.2002, coll. Shulian Hao and Huaijun Xue; 1 ♂, Dongzhong Woodfarm, Fangchenggang City (21°37'N, 108°20'E), 370 m, 9.IV.2002, coll. Shulian Hao and Huaijun Xue; 3 ♂♂, China, Hainan Province: Shuiman Town, Mt. Wuzhi (18°52'N, 109°40'E), 650 m, 15-17.V.2007, coll. Zhiwei Zhang and Weichun Li; 4 ♂♂, Shuiman Town, Mt. Wuzhi (18°52'N, 109°40'E), 630-740 m, 13-17.IV.2009, coll. Qing Jin and Bingbing Hu.

Diagnosis.

Adult (Fig. 5) with wingspan 16.0-21.0 mm. This species is very similar to Isodemis stenotera bothin appearance and in the genitalia, but can be distinguished by the forewing dominantly dark ochreous brown; the uncus narrowed basally and the phallus with single cornutus in male genitalia (Fig. 14); and the ductus bursae about 1.5 times length of the corpus bursae in female genitalia (Razowski 2000: 325, fig. 14). In Isodemis stenotera,the forewing is mainly ochreous brown; the uncus is broadenedbasally and the phallus bears two cornuti; and the ductus bursae ia about the same length as the corpus bursae.

Distribution.

China (Guangdong, Guangxi, Hainan, Taiwan).