The wingspan of Setina aurita can reach 25–32 mm.
These small moths have whitish-yellow to orange-yellow forewings with longitudinal dark brown stripes reaching the wings' margins, where there are black dots.
In some specimens only black dots are present on the entire wings.
The wing drawing is strongly dependent on the altitude.
Usually the moths living at more than 2,000 meters show stripes, while at lower elevation they are more dotted.
Caterpillars can reach a length of about 22 millimetres (0.87 in).
They are exceptionally long haired, yellow, with five longitudinal grayish-black stripes and grayish-black warts.
The head is black.

This species is quite similar to the dew moth (Setina irrorella) and Setina roscida.
The wingspan of Setina aurita can reach 25–32 mm. These small moths have whitish-yellow to orange-yellow forewings with longitudinal dark brown stripes reaching the wings' margins, where there are black dots. In some specimens only black dots are present on the entire wings. The wing drawing is strongly dependent on the altitude. Usually the moths living at more than 2,000 meters show stripes, while at lower elevation they are more dotted. Caterpillars can reach a length of about 22 millimetres (0.87 in). They are exceptionally long haired, yellow, with five longitudinal grayish-black stripes and grayish-black warts. The head is black.
This species is quite similar to the dew moth (Setina irrorella) and Setina roscida.
Setina aurita