Discover how to deal with blue flies in house quickly. Learn about blue bottle fly infestations, their life cycle, and whether blue flies are dangerous. Calliphora vomitoria is the type species of the genus Calliphora. It is common throughout many continents including Europe, Americas, and Africa. They are fairly large flies , nearly twice the size of the housefly, with a metallic blue abdomen and long orange setae on the gena. Blue flies , often mistaken for common houseflies, belong to a group of flies characterized by their metallic blue or greenish bodies. These flies are scientifically known as blowflies, part of the family Calliphoridae. Blow fly , (family Calliphoridae), any member in a family of insects in the fly order, Diptera, that are metallic blue , green, or black in colour and are noisy in flight.
