Scirpophaga parvalis (Wileman, 1911) (Figs 16, 24, 32)

Schoenobius costalis var. parvalis Wileman, 1911 . Trans. Ent. Soc. Lond., 1911: 355. Type locality: Japan.

Scirpophaga parvalis: Shibuya, 1931 . Insect World, 35: 368; Lewvanich, 1981. Bull. Br. Mus. Nat. Hist. (Ent.), 42: 214.

Description. Body pale ochreous white. Length of labial palpi about 1.2 times the diameter of compound eyes. Both wings white, without fascia. Female with anal tuft white. In male genitalia, subteguminal process with smooth margin; aedeagus swollen in apical 1/3, one slender and three stout cornuti present. In female genitalia, antrum broad, constricted in middle; ductus bursae relatively short, a little longer than the diameter of corpus bursae.

Distribution. China (Heilongjiang, Beijing, Hebei, Shandong, Henan, Shaanxi, Gansu Jiangsu, Anhui, Hubei, Fujian); Japan, Korea.