The dried beetle, Mylabris phalerata; a vesicant similar to cantharis.
[G. a cockroach found in mills and bakehouses, fr. mylē, mill]
The scientific name for a genus of blister beetle, several species of which (Mylabris phalerata and M. cichorii) have been used in traditional Chinese medicine as a vesicant and antitumor agent. Skin exposure to the crushed body of the beetle results in contact dermatitis. The blistering agent in the beetle, cantharides, is also known as Spanish fly.