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Lucilia sericata

Last updated: March 29, 2022
Verified by: IMP
Image Credit

Will only live in wet areas

Maggot Scientific Classification

Scientific Name
Lucilia sericata

Read our Complete Guide to Classification of Animals.

Maggot Conservation Status

Maggot Facts

None, only consumes decaying matter.
Group Behavior
  • Group
Fun Fact
Will only live in wet areas
Biggest Threat
Pest control
Most Distinctive Feature
Rice-like shape
Other Name(s)
Botfly maggot, fly larva, grub, maggot, surgical maggot.
Gestation Period
24-48 hours
Litter Size
150 or less
Damp surfaces with decaying matter
Small mammals, birds, amphibians, and reptiles
Common Name
group or grumble

Maggot Physical Characteristics

  • White
Skin Type
30 days
1.5-3.4 grams
Age of Sexual Maturity
Up to 40 days

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View all of the Maggot images!

Maggots are a sign that something around you is unclean. These insects, which are the larvae of a fly, are legless creatures that are no bigger than the size of a grain of rice. They primarily are white, but some species (like the rat-tailed maggot) have a red or brown hue. If you want to steer clear of them, keep a clean home and avoid traveling to humid regions because they require moisture to survive. Though they are omnivores, the right climate may bring this insect to be primarily carnivorous.

5 Incredible Maggot Facts!

  • Finding maggots in humans is rare, but it is possible if they are exposed through spoiled or rancid food or if they become infected in a tropical region. Though less likely, an infection called myiasis is possible if the maggot travels through the anus to the intestines as well.
  • These insects will only survive in wet habitats.
  • Maggots are the larvae stage of a fly, emerging from small eggs that resemble grains of rice.
  • These insects don’t typically feed on a live host. Instead, they often choose dead or decaying matter, regardless of whether it comes from humans or plants.
  • The best way to eliminate maggots from a home is to pour boiling water over them. However, prevention through pest control methods like cleaning is the easiest option.

Scientific Name

Maggots are covered by two scientific names – Lucilia sericata (green bottle fly) and Phaenicia sericata (common green bottle fly). This insect goes by many alternate names, including Botfly maggot, fly larva, and grub. They are part of the Anthomyiidae family under the Insecta class. Though different fly species start as a maggot, this insect itself doesn’t have any subspecies. The word “sericata” comes from the Latin word “sēricātus,” which means “dressed in silk.”

Appearance & Behavior

This type of insect is rather easy to identify. For the most part, it is rather small, reaching up to 25mm in length. This creature is completely legless, as it doesn’t develop legs until it is further along in its lifecycle. With two little hooks on one end, they can feed on plant and animal matter. The rat-tailed maggot is an exception, featuring a long tail on its body. Rat-tailed maggots specifically come from the drone fly.

These invertebrates tend to live in groups because they all start as eggs. They don’t rely on each other as food sources, but they are often born from the same mother, and their brief lifespan forces them to coexist. A group of maggots is called a grumble, and they are primarily driven by the need to feed. They aren’t aggressive in the pursuit of other animals, but they focus on survival through adulthood.

Maggots seek out places containing things such as rotting food or decaying matter.


The majority of these larvae find a habitat wherever they have food to eat. They’ll seek out areas with rotting food, organic material, filth, and decaying matter, regardless of the source. You might even find them in a poorly kept kitchen among the spoiled food or even in pet food. To avoid a call to pest control, keep your home free of these insects by maintaining cleanliness. Never allow trash to be strewn through an area, and don’t keep any food past its expiration date. The best pest control is to clean up immediately after meals or after a mess is made.

Typically, they seek out live tissue to live in as a habitat or eat from as a food source. However, there are extreme cases that may allow the insect to survive in a human body. Maggots in humans are rare, but it causes an infection called myiasis. This infection allows maggots to get in humans via contaminated food or direction through the anus, moving into the intestines. The infection rarely occurs in the United States, but it is common in tropical regions like Africa and South America.

Due to the brief larvae stage of the life cycle, this insect doesn’t typically have time to migrate. As an adult, flies can survive nearly anywhere.

Predators & Threats

Due to their small size, maggots tend to be on the menu for many animals, including the rove beetle. Since they can remain in their soil stage for some time, they are used as food for beetles and other small insects. Their food typically includes waste, fruits and vegetables that have overripened, fermented substances, and plant/animal matter in a state of decay. Only in extreme cases do maggots ever feed on tissues involving something living.

The only threats seem to be the potential for being eaten or killed off in pest control. However, no conservation efforts are being made to protect them due to the nuisance of the fly.

What Eats Maggots?

Also known as grub, these animals are at the bottom of the food chain. Many species of wild birds, foxes, raccoons, frogs, lizards, turtles, salamanders, and snakes. Amphibians will also eat maggots if the opportunity arises.

What Do Maggots Eat?

Even though the diet of a maggot is largely carnivorous, they don’t hunt. The plant and animal matter they consume is already in a state of decay since it is dead. They do not have any preference for any particular animal.

Reproduction, Babies, and Lifespan

Maggots are born from female flies. To get sperm from the male, the female will put her ovipositor into the male’s genital opening. The mating is not a quick process, taking up to two hours to get the highest number of useful sperm. Though they are not monogamous by choice, the short life cycle of the female fly (about 1 month) only leaves her enough time to mate with one partner. The female lays about 500 to 2,000 eggs in her brief lifetime, though they are laid in batches of no more than 150 each time.

The maggot is the larva stage of the fly’s life cycle. They are the babies of flies, and they are born within a day of the fly eggs being laid, and they do not need the mother or father to nurture them. Some fly eggs hatch in as little as 7 hours. Maggots are unable to see actual images, but they have photoreceptors from birth that let them see the brightness of their surroundings.

The average lifespan of a fly is about a month. They spend about 3-5 days in a heavy feeding stage before they reach the pupal stage. From hatching, it takes 14-36 days to go from an egg to an adult fly.


Determining the number of maggots in the world is nearly impossible. There is no natural regulation for these baby flies in the world, and they appear in the thousands within a day of eggs being laid by the female. Their population is not typically appreciated among the people who encounter them, and there is no current conservation effort in favor of them. When you see the larva, your first thought is probably to call pest control.

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Maggot FAQs (Frequently Asked Questions) 

What is a maggot?

It is the larvae stage of a fly’s life cycle, hatching from fly eggs. It takes up to 36 days for a fly to go from an egg to adulthood.

What do maggot eggs look like?

Fly eggs look a lot like soft grains of rice, releasing legless white worms in the larvae stage. They particularly thrive in rotting plant or animal matter.

What happens if you eat a maggot?

You won’t likely be in any real danger if you consume one of these insects by accident. However, if you ate it as the result of eating food that has already gone bad, you put yourself at risk of food poisoning, which can be a serious medical issue that lasts for days of discomfort.

How long does it take for a maggot to hatch?

The total hatching time varies from two hours to three days, depending on their progression. Once it is hatched, the larvae will become a fly within six hours to five months.

What does a maggot look like?

It looks like a short white worm that is less than a quarter of an inch in length.

How do I kill a maggot?

There are multiple ways to kill them. Pouring boiling water over them is a quick solution, killing them instantly. However, to ensure that they do not survive, add a mixture of 1.5 cups of hydrogen peroxide and a cup of bleach to each gallon poured. Some people try to pour salt on them to dehydrate the insect since it thrives on moisture.

Can maggots harm humans?

Not directly. Food poisoning from eating infested food is a major risk, but the reason is due to the food, rather than the maggots. They feed on plants and animals that are already decaying, so they won’t pose a threat to living humans.

What causes maggots?

They arise in an area if there is improperly stored trash, rotting dead animals, or dog feces. The female fly uses these types of areas to lay their eggs, and their presence can be dangerous for pets.

Are maggots good or bad?

Maggots aren’t much of a threat but finding them in a home is a good indication that there are messes that need to be cleaned as soon as possible.

Are maggots inside humans?

Maggots can grow inside a host, living within the stomach, intestines, and mouth in cases of myiasis.

What are maggots a sign of?

Maggots are a sign of decaying plant or animal matter, as this is what attracts the female fly to lay their eggs.

Are maggots carnivores, herbivores, or omnivores?

For the most part, maggots are carnivorous. However, some species are omnivores as well.

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