Kalmar "Order Diptera" tana nufin rukunin kwari da aka fi sani da kwari. Kalmar "Diptera" ta fito ne daga kalmomin Helenanci "di" (ma'ana biyu) da "ptera" (ma'anar fuka-fuki), wanda ke nufin fasalin fasalin rukuni - suna da fuka-fuki biyu masu aiki, sabanin fuka-fuki hudu da aka samu a wasu. kwari Ana samun su a kusan dukkanin wuraren zama a duniya kuma suna taka muhimmiyar rawa a matsayin masu yin pollinators, masu bazuwa, da mafarauta. Wasu nau'in kuda kuma an san su da kamuwa da cututtuka ga mutane da sauran dabbobi.