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Fly Facts


If you are going to become a Fly Assassin, it's important to learn about your enemy. Here is some useful information to know before you take on the task of killing flies.

  • The name of the common house fly is Musca Domestica.
  • Adults flies typically vary between 8 to 12 mm long.
  • The thorax of the house fly is gray. They have four longitudinal dark lines on their backs.
  • A fly's entire body is covered in hair projectiles.
  • The female fly is bigger than the male fly.
  • Flies have only one pair of wings. The pair in the rear is reduced to become small halteres. These halteres aid in their flight stability.
  • Every female fly can lay around 500 eggs and in several batches between 75 to 150.
  • Flies rely on temperatures that are warm. This allows them to develop faster.
  • The most common diet of a house fly is feces, open sores, sputum, and moist decaying organic matter (eg. spoiled food, eggs and flesh).
  • House flies only take in liquid food. They are required to spit out saliva on to solid food in order to predigest it, then they suck it in.
  • Flies also regurgitate partly digested matter to pass it through to the abdomen.
  • It is believed that house flies evolved from the beginning of the Cenozoic era (65 million years ago).
  • Flies are constantly depositing feces. This is due to their high intake of food. This is why the fly is such a common carrier of pathogens.
  • The house fly can travel several miles from it's initial breeding place.
  • Flies are active in the daytime only and rest at night in corners of the room, light fixtures, or ceiling hangings.


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