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GLOSSARY
Flies
The word fly (hae) is commonly used to describe many kinds of winged insects, but true flies are two-winged insects belonging to the order Diptera. The number of known species in the world amounts to many tens of thousands and several hundred species are found in Japan. Typicall, they breed in waste matter, farmyards and in the excreta of cattle, horses and domestic fowl. The common house-fly of Japan (Musca domestica vicina) and a green-fly ( Phoenecia sericata) were fixed in acrylic resin and induded in the capsule. Both carry diseases of the digestive system.