Rhopaltriplasia insignata Kuznetsov, 1997 (Figs. 1, 2, 3)

Rhopaltriplasia insignata Kuznetsov, 1997: 797, figs. 1–2.

Material examined. CHINA: Zhejiang Province: Mt. Tianmu (30°26' N, 119°34' E), 3ɗ, alt. 1500 m, 18.viii.1999; 1&, 350 m, 20.viii.1999 (Houhun Li).

Diagnosis. This is the only species in the genus for which a female is known. Rhopaltriplasia insignata (described from Vietnam) is very similar to R. macrorhis, R. rotundipetalina sp. n., and R. spinalis sp. n. It can be distinguished easily from R. macrorhis by the shorter valva, which does not reach the apex of the uncus; in contrast, the valva is very long and exceeds the apex of the uncus in the latter species. Differences between R. insignata and the two new species described here are stated below. Adult (Fig. 1): Forewing length 5.5–5.9 mm.

Male genitalia (Fig. 2): As illustrated.

Female genitalia (Fig. 3): As illustrated.

Distribution. China (Zhejiang), Vietnam.