Periacma iodesma vietnamica Lvovsky, 1988

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 : 2378

Periacma iodesma vietnamica Lvovsky, 1988

( Figures 7 and 38 )

Periacma iodesma vietnamica Lvovsky, 1988: 127 ; Wang and Li, 2001: 276.

Wing expanse: 15.0–16.0 mm.

Female genitalia ( Figure 38 ): Papilla analis caudally rounded, setose. Apophysis posterioris more than three times length of apophysis anterioris. Lamella postvaginalis caudally rounded, spinulate. Ostium bursae laterally with small, sclerotized plate. Ductus bursae almost as long as corpus bursae; signum small, anteriorly with a minute curved thorn.

Material examined: 1 „, Mengla (21 ° 29 9 N, 101 ° 33 9 E), Yunnan Province, 20 April 1982; 1 „, 2 ♀♀, Fangcheng (21 ° 37 9 N, 108 ° 20 9 E), Guangxi Zhuangzu Autonomous Region , 370 m, 9 April 2002, coll. Shulian Hao and Huaijun Xue ; 1 „, Shanghang (25 ° 03 9 N, 116 ° 24 9 E), Fujian Province, 600 m, 31 May 2004, coll. Haili Yu.

Distribution: China (Guangxi, Yunnan), Vietnam.

Remarks: The slight differences between Periacma iodesma vietnamica Meyrick and P. iodesma Meyrick lie in: uncus rounded caudally, gnathos roundly protruded forward and aedeagus with more tooth-like spines throughout in the former subspecies; while uncus straight caudally, gnathos bluntly rounded anteriorly and aedeagus with fewer tooth-like spines in the nominate subspecies.

The female of this species is described for the first time.

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, „.

Figures 38–43. Female genitalia of Periacma spp. (38) P. iodesma vietnamica Lvovsky; (39) P. zhouzhiensis Wang & Zheng; (40) P. binchuanensis Wang & Zheng; (41) P. equivalvata Wang, Li & Liu; (42) P. plumbea Meyrick; (43) P. leyensis Wang & Li, sp. n.; (44) P. latizona Wang & Li, sp. n.; (45) P. spinivalvula Wang & Li, sp. n.