Hypomecis separata is a species of moth of the family Geometridae.

Male with bipectinate (comb-like on both sides) antennae, with decumbent (up-turned tips) branches.

A broad, ill-defined pale fascia found from base to outer margin below apex.

There is an indistinct annulus at end of cell and traces of a waved postmedial line.

A crenulate (scalloped) postmedial line and an incomplete submarginal black band can be seen.