Chrysomya megacephala (Fabricius) is the earliest and the most prevalent necrophagous species found infesting dead bodies in Malaysia followed by Chrysomya rufifacies (Macquart). Similar to the other dipterans, the developmental stages of C. megacephala is prone to alter in response to environmental conditions. However, the possible influences of the environmental conditions prevailing in tropical countries like Malaysia on the development of this species have not been reported. In addition, malathion being the most prevalent poison used for suicidal purposes in many countries including...