 This is a "new world" parasite that has been found in the Southwestern part of the United States, and Central America specifically, Costa Rica

"Myriophora" are initially attracted to the chemical toxin released by their host that is used to keep predators away.However, this same toxin is what attracts the "Myriophora".Specifically, the flies are more attracted when 2-methoxy-3-methyl-1,4-benzoquinone is combined with another chemical 2-methyl-1,4-benzoquinone.