The present study compared the development of the fleshfly Wohlfahrtia nuba larvae fed on different cow body tissues at constant temperature. The results showed that larval growth rate was significantly faster, and larvae completed feeding and wandered from the food source earlier between 24 and 30 hr when they were fed on brain compared to lung, heart, muscles and liver. Moreover, the time required for pupation was significantly shorter between 10 and 15 hr when the larvae were reared on brain and liver than when reared on the other tissues. However, full-grown larvae reared on brain and liver were significantly lighter in weight and smaller in length than those reared on heart, lung and muscles. Emerging adult flies were significantly smaller when the larvae were reared on liver and brain compared to the other tissues. The results showed a positive correlation between traversal distance and pupal weight. Also, the pattern of distribution as a consequence of larval dispersal was aggregate. These results can be used in forensic entomology for the postmortem interval estimation of human corpses in medico-criminal investigations