Andesiana lamellata

Andesiana lamellata is a moth of the Andesianidae family. It is known from Argentina (Neuquen and Rio Negro) and Chile (Malleco and Valdivia).

The length of the forewings is 15.7–26.1 millimetres (0.62–1.03 in) for males and 21.5–26.1 mm (0.85–1.03 in) for females. Adults are sexually dimorphic, with females being up to 1/3 larger than males. The vestiture of the male forewing is grey with a metallic sheen, covered by a reticulate pattern of reddish brown. The hindwings are grey with a diffuse reticulated brownish pattern, but lighter towards the wing base. Females have a less pronounced wing pattern.

Adults fly from late September to mid January, with isolated records in February and April in Nothofagus pumilio and Nothofagus antarctica forests. They occur on altitudes of 100–1,750 metres (330–5,740 ft).