Periacma siamensis Moriuti, Saito & Lewvanich, 1985

Wang, S. X. & Li, H. H., 2006, Review of the genus Periacma Meyrick (Lepidoptera, Oecophoridae) from China, with descriptions of four new species, Journal of Natural History 40 (41 - 43), pp. 2371-2393 : 2377-2378

Periacma siamensis Moriuti, Saito & Lewvanich, 1985

( Figure 5 )

Periacma siamensis Moriuti, Saito & Lewvanich, 1985: 25 ; Wang and Li, 2002: 570.

Wing expanse: 13.0–15.0 mm.

Material examined: 3 „„, 1 ♀, Chishui (28 ° 34 9 N, 105 ° 42 9 E), Guizhou Province, 29–30 May 2000, coll. Yanli Du ; 4 „„, 4 ♀♀, Xishui (28 ° 19 9 N, 106 ° 12 9 E), Guizhou Province, 31 May–3 June 2000, coll. Yanli Du ; 4 „„, 3 ♀♀, Shangsi (22 ° 09 9 N, 107 ° 58 9 E), Guangxi Zhuangzu Autonomous Region , 550 m, 3 April 2002, coll. Shulian Hao & Huaijun Xue ; 1 „, Jinxiu (28 ° 34 9 N, 105 ° 42 9 E), 550 m, 13 April 2002, coll. Shulian Hao & Huaijun Xue ; 14 „„, 6 ♀♀, Xinhua (27 ° 44 9 N, 111 ° 18 9 E), Hunan Province, 3–8 August 2004, coll. Yunli Xiao ; 2 „„, 4 ♀♀, Xinyi (22 ° 21 9 N, 110 ° 56 9 E), Guangdong Province, 7–13 August 2003 .

Distribution: China (Guangxi, Guizhou), Thailand.

Remarks: This species resembles P. orthiodes , but can be distinguished from the latter by the male genitalia with the gnathos slightly concave at middle of the anterior margin and the sacculus apically rounded.

Figures

Figures 1–11. Adults of Periacma spp. (1a) P. orthiodes Meyrick, „; (1b) P. orthiodes Meyrick, ♀; (2) P. ferialis Meyrick, „; (3) P. iodesma Meyrick, „; (4) P. delegata Meyrick, „; (5) P. siamensis Moriuti, Saito & Lewvanich, „; (6) P. angkhangensis Moriuti, Saito & Lewvanich, „; (7) P. iodesma vietnamica Lvovsky, „; (8) P. isanensis Moriuti, Saito & Lewvanich, ♀; (9) P. ziyangensis Wang & Zheng, ♀; (10) P. zhouzhiensis Wang & Zheng, „; (11) P. tianshuiensis Wang & Zheng, „.