1. Dichomeris argentenigera Li, Zhen & Kendrick, 2010

(Figs 1, 49)

Dichomeris argentenigera Li, Zhen & Kendrick, 2010: 70 . TL: China (Hubei, Hong Kong).

Material examined: VIETNAM: Bac Kan Province: 1♀, Ba Be Nat. Park, 26–28 vii 2006, leg. Park, Chae & Cuong, gen. slide no. CIS-6283 ; 1♂, same locality, 255 m, 20–24 ix 2013, leg. JB Heppner, gen. slide no. nklep057 .

Female genitalia (Fig. 84). Apophyses anteriores about 1/3 length of apophyses posteriores. Eighth tergite with anterior margin deeply concave in triangle, posterior margin convex in trapezoid; eighth sternite deeply concave in semicircular on posterior margin.Antrum ampullaceal, about same length with apophyses posteriores, gently sclerotized on anterior margin, deeply concave triangularly on posterior margin, extending onwards to middle of antrum, sclerotized marginally. Ductus bursae rectangular, about 2/7 length of apophyses posteriors, membranous. Corpus bursae large ovate, densely spinous on inner surface in posterior 4/5; two inverted triangular sclerotized lobes at entrance of corpus bursae ventrally, fused at base, left lobe extending to posterior 1/4 of corpus bursae, right lobe extending to posterior 1/5.

Distribution. Vietnam (new record: Bac Kan), China (Hong Kong, Hubei).

Remarks. The female is firstly described.