Idioglossa bigemma is a species of moth of the family Batrachedridae.

It is known from Mauritius, Réunion and South Africa.

The head and face of this species are shining silvery, palpi and antennae silvery.

The forewings are ochreous, shining with silvery and brassy metallic scales.

This article on a moth of the family Batrachedridae is a stub.