Wiltshirocossus aries is a species of moth of the family Cossidae.

It is found in southern Spain, on the Canary Islands, as well as in Mauritania, Israel, Saudi Arabia, Bahrain, the United Arab Emirates, Yemen, Oman, Algeria, Tunisia and Egypt.

[1] The habitat consists of deserts and semidesert areas.

The ground colour of the forewings is white, with brownish suffusion.

This article relating to the moth subfamily Cossinae is a stub.