Thyrassia inconcinna is a species of moth in the family Zygaenidae first described by Charles Swinhoe in 1892.

It is found in Queensland, Australia.

The length of the forewings is 10–11 mm for males and 12-12.5 mm for females.

[1] The larvae feed on Vitis species.

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