Understanding The Life Cycle Of Flies

There are various types of files living in the world over 120,000 infact, which we see in our day to day lives, but never bother to learn whether they all the same or different ones. Each fly is different from the other and hence has its own class, characteristics, behavior, life cycle, advantages and disadvantages.

They all have different features, most of them are useful for the evironment and some can very harmful for us. The species vary with respect to their life span which makes it difficult to understand the life cycle of a fly.

Life Cycle of flies

There is a similarity between their life cycles, which is, all the species of flies have a four stage life cycle, which consists of first laying eggs, secondly developing as larvae, thirdly becoming a pupa then lastly an adult fly. Before understanding the life cycle of a fly you must realize which fly you are looking for as the basic life cycle is the same, but the time duration of developing these stages may vary greatly from one species of fly to another.

The very first step of their life starts when a female fly finds a suitable place for breeding, which means a place with right circumstances where the larvae can grew after coming out of the egg, there only she can lay her eggs, number of eggs will vary from fly to fly normally around 200-500 eggs will be laid. Although this varies greatly some flies are capable of laying up to 900 eggs.

There are some of the common places where you can find breeding sites like a place where one disposes the trash, garbage cans, dumpsters, manure piles, moist soil, decaying animals, decaying plants or organic material, etc. These are the places, flies mainly choose for laying eggs so their larvae once out can have plenty of eating substances to develop into pupa.

The growing time of fly larvae can last for days or weeks until they store enough protein and nutrients, which will help them in surviving the next coming pupa stage. Before going into the pupa stage, the eating larvae search for a place which is hidden, dark and dry, so they can pupate without any problems and be safe. During this stage they develop into a full grown up fly consisting of six legs, eyes and wings.

These characteristics along with other rare features are developed during this stage only. The time may vary from species to species as well as the amount of food they have stored during the larvae stage and also on the environmental conditions. Similarly the colors of flies, their eye color, body texture, legs and wings may differ from species to species.

Flies life span can differ depending upon their species, for example a house fly can live for 2 whole months in the wild, similarly a fruit fly can stay alive for a whole month. Some flies can live for a few days, weeks depending on their species.


Understanding the life cycle of a fly can be a little complicated, but it’s not impossible, all you have to do is to identify first which fly you want to study or learn about then you can move further. All these are different and carry various pathogens, bacteria’s, diseases with them. Once you know what fly your dealing with only then you can you get rid of flies.


Flies have a basic life cycle of four stages, but the time taken for a single stage may differ as per the species. In order to understand their life cycle first it’s necessary to identify the type of fly, then you can understand it in a better way. And by understanding the flies life cycle you’ll understand why flies keep coming back and back after you have removed them. This is why it is so important to remove the flies breeding ground before clearing the adult flies around you home.