Life Cycle Stage Timing Description Observations
Eggs 1 day 1-2 mm Located especially around the body’s natural orifices, such as the nose, eyes, ears, anus, penis, vagina, and in any wounds.
Larvae —1st Instar 1.8 days 2-5 mm
Larvae — 2nd Instar 2.5 days 10-11 mm
Larvae — 3rd Instar 4-5 days 14-17 mm
Pre pupae 8-12 days 11-12 mm Larvae become restless and start to move away from the body, crop organ is gradually emptied of blood, and internal features are gradually obscured by the larvae’s enlarged body
Pupae 14-18 days 14-18 mm Darkens with age Presence of empty puparia an indication that the person in question has been dead approximately 20 days.
Adult flies Emerges from pupa cases after 4-7 days New generation Small adult flies
Table 1: show Normal Life cycle stages of fly.