They are also known for burrowing themselves into the animal carcass and lay eggs there. In addition to these, adult blow flies also consume garbage, or feces. Filth flies include the common house fly, drain flies and blow flies. It is especially important to know where certain species lay their eggs. Fruit flies can lay up to 500 eggs at a time near the surface of fermenting (ripening) foods or other organic materials. They lay eggs on wet decaying organic matter, on animal manure, and in rotting plant debris. Reproductively mature female blow flies use very low concentrations of dimethyl trisulfide (DMTS) in combination with dark animal pelt mimicking colours (black and reddish brown) to rapidly locate the corpse. thank you for answering this. They lay their eggs on dead animal carcasses, decaying meat, and garbage that contains meat scraps. Understanding eating and breeding patterns of certain flies can help when you need to eliminate their populations. Lol, i was just wondering "do flies lay eggs when they eggs they land".some people have said that before so i really want to know. read more This is why it’s so common to see them in old or rotting food. Shiny, metallic flies. The eggs are white and are about 1.2 mm (0.05 in) in length, and they are deposited by the fly in a suitable place, usually dead and decaying organic matter, such as food waste, carrion, or faeces. Blow flies lay their eggs on recently deceased animal corpses. Flies lay eggs that hatch into maggots after 24 hours. The fly will lay its eggs anywhere it feels like the maggots will be safe and well-fed. My question is, could it have laid eggs on my laptop case since the fly didn't move at all? There are larval and pupal stages, and it takes approximately 14 to 36 days for the eggs to morph into flies. Blow flies are usually the first insects to attack a dead animal carcass. Where Do Fruit Flies Come From, and How Long Do They Live? Most fly eggs are laid in almost any warm, moist material that will provide food for the larvae (maggots). I was sitting outside today and a huge fly flew on top of my laptop case. Called blow flies because their larvae develop inside dead animals, causing the carcasses to bloat. It took like 3 minutes to get it off (my friend got it off and I think it dropped on the ground). The entire life cycle from egg to adult takes only about eight to 10 days so they proliferate with great rapidity. Blow fly. The eggs quickly hatch into maggots which consume and break down the corpse. Bottle flies mostly like to eat fresh or decaying meat. There are several types of pest flies found in North American homes. Each female housefly can lay up to 500 eggs in a lifetime, in several batches of about 75 to 150. Fly eggs (maggots) are commonly pale white in color. Fruit fly. The eggs can be in different shapes or sizes as it can depend on the species. I tried to swat it away, but it did not move at all.