Kalmar "Diptera" kalma ce ta kimiyya da ke nufin tsarin kwari, wanda aka fi sani da kwari. A ilmin halitta, wanda shine binciken kimiyya na kwari, "Diptera" tsari ne na haraji wanda ya hada da babban rukuni na kwari da ke da nau'i mai nau'i guda biyu na aiki (don haka sunan "Diptera," wanda ke nufin "fuka-fuki biyu"). a cikin Hellenanci) kuma yawanci suna da ƙanana, ƙulli-kamar tsarin da ake kira halteres waɗanda ke aiki azaman daidaita gabobin. An san ƙudaje da iya tashi kuma ana samun su a wurare iri-iri a duk faɗin duniya. Suna taka muhimmiyar rawa a cikin halittu kamar masu yin pollinators, masu bazuwa, da kuma matsayin tushen abinci ga sauran dabbobi. Tsarin Diptera ya ƙunshi nau'ikan ƙwari da yawa da suka saba da su kamar kwari gida, sauro, kwari 'ya'yan itace, da hoverflies.