About Hyperythra lutea (Stoll, 1781)
The wingspan of male Hyperythra lutea is 36 mm. Males have a highly arched costa on their hindwings. A very long tuft of hair grows from the base of the cell, lying in a fold above vein 6. The cell is very short and open. Male moths are yellowish, suffused with pink and striated with fuscous. Some white coloring appears on the palpi and the shaft of the antennae. Forewings have an indistinct antemedial line angled below the costa. Medial and postmedial bands are ill-defined, slightly curved, and pinkish. Hindwings have similar narrow antemedial and broad postmedial bands; one or two black marks are present on the broad postmedial band below the costa. The underside is bright yellowish, with the area beyond the postmedial line more or less completely colored pink. Forewings have a whitish patch below the apex. The extent of pink suffusion on both the upper side and underside varies greatly between individuals. The wingspan of female Hyperythra lutea is 38–46 mm. Females are a much brighter yellow. Lines replace the bands seen in males: three lines appear on the forewings, and two on the hindwings, and these lines are usually prominent. The head and body of Hyperythra lutea larvae are finely granulate. Larvae have cylindrical bodies, which are pale greyish with black rims. The larvae feed on plant species in the genus Gouania.
