Periacma delegata Meyrick, 1914

Periacma delegata Meyrick, 1914: 52; Wang, 2006: 171. Periacma chengchengensis Wang et Zheng, 1995: 5 .

Material examined. Taiwan: 6 ♂, Kaohsiung Chiahsien, 300 m, 3−8 June 1980, coll. D. R. Davis (USNM); 1 ♀, 4 ♂♂, Kaohsiung Meishan, 870 m, 29 June − 2 July 1980, coll. D. R. Davis (USNM); 1 ♂, Nantou Wushe, 1000 m, 27−31 May 1980, coll. D. R. Davis (USNM); 1 ♂, Taihoku, A(?) May 1921, coll. S. Issiki (USNM); 3 ♂♂, Nantou Hueisun Exp. Forest, 600 m, 25−27 June 1999, coll. Mey & Ebert (MNHU); 1 ♀, Nantou Hueisun Exp. Forest, 650 m, 24−29 May 1998, coll. Mey & Speidel (MNHU).

Distribution. China (Anhui, Beijing, Hebei, Henan, Heilongjiang, Shannxi, Taiyuan, Tianjin, Taiwan), Japan, Korea.

Remarks. Wang (2006) redescribed this species in detail and provided images of adults and genitalia.