About Odontoptilum angulata (Felder, 1862)
This is a description of Odontoptilum angulata (Felder, 1862). Both male and female individuals of this species are vinaceous-brown, with the palest shade appearing on the hindwing. For males, the forewing is dull chestnut-brown along its outer margin. There is a black transverse band located one-third of the way from the base of the forewing. A paired semi-transparent spot sits on the costa just before the apex, and this spot is surrounded by diffuse black coloration. A semi-transparent crescent-shaped mark and a small small spot are present in the lower section of the disc, and these are bordered externally by a black band. The male hindwing has three purplish-white lines: a transverse subbasal line, an angled discal line, and a lower submarginal line. The apex of the hindwing has a diffuse black patch, and there are lower marginal blackish spots that have pale borders. On the underside, the base of the forewing is suffused with greyish-white, and other markings match those seen on the upper side. The entire underside is brown overall. The underside of the hindwing is greyish-white; its transverse lines are less distinct than on the upper side, its marginal spots are blacker, and there is an additional blackish spot near the base of the wing. The upper side of the palpi is black. The underside of the palpi, the underside of the body, and the legs are all greyish-white. Females are paler than males, but their markings on both the upper and underside match those of males.