Cosmosoma myrodora, the scarlet-bodied wasp moth, is a moth of the subfamily Arctiinae. It was described by Harrison Gray Dyar Jr. in 1907. It is found in the United States in Florida[1] and from South Carolina to Texas. The habitat consists of coastal plains.
The wingspan is 30–35 mm.[2] Adults are on wing from March to December. An adult male extracts toxic chemicals from Eupatorium capillifolium and showers these toxins over the female prior to mating.