Sigmuncus albigrisea (Warren, 1914)
Lophoptera albigrisea Warren, 1914, Novit. zool., 21: 416. Syntypes: 3 males, 2 females, [India]: [Meghalaya], Khasia Hills (BMNH).
Stictoptera intermixta Wileman, 1915, Entomologist., 48: 146.
Sigmuncus albigrisea: Holloway, Malay. Nat. J., 38: 283.
Diagnosis. Externally S. albigrisea is similar to S. arcuata, but differs by bigger size, with the forewing length more than 15 mm, and darker forewing color. In the male genitalia, the uncus is straight and wide, spearheadshaped apically, but that of S. arcuata is narrow and long, bended apically; the middle of the valva in S. albigrisea is constricted into the same width as the base of the uncus, but that of S. arcuata is much wider than the base of uncus.
Material examined. None.
Distribution. China (Taiwan), India, N.E. Himalaya, Malaysia, Indonesia. The species was reported for China by Heppner & Inoue (1992).