Luxiaria phyllosaria (Walker, 1860)

Figs 25–28, 55, 72, 82, 90, 104

Drepanodes? phyllosaria Walker, 1860, List Specimens lepid. Insects Colln Brit. Mus., 20: 82. Holotype ♂ (BMNH). Luxiaria alfenusaria Walker, 1860, List Specimens lepid. Insects Colln Brit. Mus., 20: 232. Holotype ♂, Borneo: Sarawak (BMNH).

Psamatodes acutaria Pagenstecher, 1888, Jb. nassau. Ver. Naturk., 41: 177. Syntypes, Malaysia. Luxiaria phyllosaria: Holloway, 1976, Moths of Borneo with special reference to Mount Kinabalu: 78.

Diagnosis. In external appearance, this species is distinguishable from other congeners by the following characters: the forewing apex is falcate; the outer margin of the hind wing is smooth; the wing colour is yellow; the forewing antemedial and medial lines respectively form a short blackish brown stripe on the costa; a blackish brown semicircular patch is present on the costa near the apex of the forewing; broad brown bands are present outside the postmedial lines of both wings, the forewing band extending to the outer margin except in the area near the apex; blackish brown and serrate patches are present on the bands, sometimes indistinctly; the discal spots are greyish brown, but reddish brown and more distinct on the underside; the forewing fringes are dark brown. The male genitalia are similar to those of L. amasa, but the ventral margin of the dorsal arm of the valva has a rounded process with short spines terminally, which is absent in L. amasa; the angled part of the ventral arm of the valva is nearly triangular; the posterior part of the juxta is less sclerotized; the aedeagus does not have any sclerotized structures; the vesica has two cornuti, the basal one much shorter than the apical one. The female genitalia are also close to those of L. amasa, but the lamella antevaginalis is undeveloped; the lamella postvaginalis does not have a lateral protrusion, and the anterior margin of the lamella postvaginalis is thicker.

Material examined. CHINA: Hainan (IZCAS): 5 ♂ 3♀, Jianfengling, 14.IV.1978, 12.IV.1980, 27.V–9.VI.1982, 6.V.1983, 9.VIII.1983, coll. Liu Yuanfu et al.; 1♀, Baisha, Yinggeling, Nankai, Mohao, 15–16.IV.2010, coll. Jiang Nan. Guangxi (IZCAS): 10 ♂ 2♀, Pingxiang, 230 m, 8–13.VI.1976, coll. Zhang Baolin; 4 ♂, Fangcheng, Fulong, 500 m, 24–26.V.1999, coll. Yuan Decheng et al.; 2 ♂, Napo, Beidou, 550 m, 9.IV.1998, coll. Wu Chunsheng & Zhou Haisheng; 1 ♂, Jinxiu, Luoxiang, 200 m, 14.V.1999, coll. Han Hongxiang.

Distribution. China (Hainan, Hong Kong, Guangxi,?Jilin); India, Nepal, Sri Lanka, Philippines, Malaysia, Indonesia (Borneo).

Remarks. We have one male specimen labelled “Changbaishan, Jilin, 12.VII.1974 ” in our collections. The external and genital features of the specimen are identical to the specimens of L. phyllosaria from Hainan and Guangxi. We think the distribution of this species in Jilin is very strange and suspect that it may be a labelling error. Further specimens from Jilin would be needed to confirm the validity of the distribution in Jilin.