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

[1] It is known from the Khasi Hills of India.

The forewings are orange-yellow with a purplish-fuscous-golden triangular blotch at one-third, almost reaching the costa.

[2] The host plant of this species is Commelina benghalensis (Commelinaceae).

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