Achlya flavicornis, the yellow horned, is a moth of the family Drepanidae.

The reniform and orbicular marks are generally clear and distinct, but in some examples they are united and form a whitish blotch outlined in blackish; the cross lines are usually well defined, but in the dark grey dusted form are very obscure.

The moth flies from February to April depending on the location.

There is a row of black spots and finely black-edged white dots.

The insect overwinters as a pupa in a cocoon, amongst leaf litter.