Mesembrina meridiana, sometimes known as the noon fly or noonday fly, is a species of fly in the family Muscidae.
Mesembrina meridiana can reach a length of 9–13 millimetres (0.35–0.51 in). These medium large flies have a stout body. Thorax and abdomen are shiny black, covered with uniform black hair. Numerous bristles are present on the edge of the scutellum. Occiput has no yellow hairiness. Eyes are bare and the cheeks under the eyes are covered with fine yellow short hairs. Orbits are separated by a wide black space. Antennae and palps are black, but arista is yellow. An orange colouration is present on the base of the wings, on the feet and the face.
