Ianius is a monotypic moth genus in the family Erebidae described by Richards in 1939.

Its only species, Ianius mosca, was first described by Harrison Gray Dyar Jr. in 1910.

[1][2] It is found in Mexico[3] and the southern United States, where it has been recorded from Texas.

Adults are on wing from March to May and in September.

This Melipotini article is a stub.