Euchaetes antica is a moth of the family Erebidae. It was described by Francis Walker in 1856. It is found from Arizona and New Mexico in the US, south to Mexico, Nicaragua, Honduras and Guatemala.
The length of the forewing is 13âÂÂ15 mm for males and 16âÂÂ20 mm for females.
The larvae feed on Asclepias subverticillata.