Larva

The House fly, (Musca domestica) Linnaeus, is a common household and agricultural pest. Always associated with humans or human activity, this species can be discovered. On hog and poultry farms, horse stables, and ranches, it is the species that is most frequently encountered. House flies can carry disease-causing pathogens in addition to being an annoyance. The presence of close human habitations makes excessive fly populations potentially dangerous for the public’s health in addition to being an annoyance to field employees.
This widespread fly was first discovered in the steppes of central Asia, but it can now be found on every continent where people live, in all types of climates—from tropical to temperate—and in both rural and urban settings. It is frequently linked to animal waste, but it has adapted well to feeding on trash, making it widespread practically everywhere people dwell.