[1][2] Sarcophaga peregrina has been reported in Southeast Asian region from Sri Lanka to Indonesia, China, Japan, Australia, Samoa and Cook Islands, Hawaii, and throughout Europe.

[3] They are usually the most abundant fly in these regions as they rapidly breed in chicken manure, and also on foods and excrement around human habitations.

An important microscopical diagnosis is the presence of 5-20 long slender hairs (absent in most species of flesh fly) on propleura - a deepset plate on the antero-lateral corner of the thorax adjacent to the lower part of the spiracle.

[5] Sarcophaga peregrina easily breed and multiply where there are garbage (especially having meat), human and animal faeces, and fish baits.

[3] Sarcophaga peregrina will rapidly swarm corpse cadavers, and for this reason they can be used as important indications of the postmortem interval in forensic investigations.

[8] Then the age of the flies can be specifically determined, using technique such as pteridine fluorescence, and this helps to establish the time of death.