Myrtartona mariannae is a species of moth in the family Zygaenidae.

It is only known from Milmerran in south-eastern Queensland.

[1] The length of the forewings is 8.5 millimetres (0.33 in) for males.

[1] The species is named for Marianne Horak.

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