The flesh flies have a similar appearance to houseflies but these are larger in size. Most of the flesh flies grow up to 1/3 or ½ inches long. The flesh flies are generally grey in color with a checkerboard pattern on the top of the abdomen. Three stripes run on the top surface of the thorax. These flies have a reddish-brown tip at the end of their abdomen. The flesh flies get such a name because they lay eggs in open wounds. This species primarily breed on animal carcasses. The female flesh flies retain their eggs within their body until the eggs hatch. The flies directly deposit the larvae onto the food. This species of flies take 8-21 days to reach their adult stage. The best way to prevent infestation of these flies is to maintain proper sanitation and remove the suitable breeding places.