Kalmar "Ephemeroptera" tana nufin tsari na kwari da aka fi sani da mayflies. An siffanta su da ɗan gajeren lokacin rayuwarsu, yawanci kwana ɗaya ko biyu kawai, da ƙaƙƙarfan bayyanarsu da fikafikai biyu da tsayi, siraran ciki. Kalmar “Ephemeroptera” ta fito ne daga kalmomin Helenanci “ephemeros,” ma’ana “ gajeriyar rai,” da “ptera,” ma’ana “fuka-fukai.”
