Metacrambus carectellus is a species of moth in the family Crambidae. It is found in Portugal, Spain, France, Italy, the Balkan Peninsula, Ukraine, Russia, Transcaucasia, Asia Minor, the Palestinian Territories, Lebanon, Syria, Iran and Uzbekistan.
The wingspan is 18âÂÂ23 mm. Adults are on wing in July and August in one generation per year.
The larvae feed on various grasses.