The Life Cycle Of Carpet Beetle

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The life cycle of carpet beetles is fascinating and involves a complete metamorphosis. It can last anywhere from two months to several years. The beetle begins its life as an egg, hatches into a larva, pupates, and finally becomes an adult beetle.

The time it takes for the beetle to complete its life cycle depends on various factors, including the environment and the food supply.

The larva stages are where the damage to carpets and clothing often occurs. You should identify the infestation in the initial stage to prevent further impairment. Let us dive into the topic and get to know everything required to prevent these pests from your house.

The diet and behavior of carpet beetle

The dietS and behavior of carpet beetles change as they progress through their life cycle. The larvae feed on keratin and chitin, found in natural fibers such as hair, fur, wool, skin, and feathers.

They can also damage fabrics made from these materials. Adults feed on the pollen and nectar of flowering plants.

The Life Cycle of Carpet Beetle

The behavior of the carpet beetle appears to depend on environmental factors such as temperature and photoperiod (daylength). 

Which insects predate on carpet beetle?

Carpet beetles are a common household pest and are attracted to light and can be found in many different environments. Carpet beetle predators include birds, bats, spiders, and wasps. The wasp predator paralyzes its prey with a single sting before laying its eggs on it.

Carpet beetle feeding on pollen and nectar

The life cycle of carpet beetle

There are four distinct stages in the life cycle of a carpet beetle: egg, larva, pupa, and adult. The larval food sources determine a carpet beetle’s life cycle that it consumes. If a carpet beetle has access to a wide variety of food sources, its growth cycle will be shorter.

However, if a carpet beetle only has access to limited food sources, its growth cycle will be longer. The beetle begins its life as an egg, hatches into a larva, pupates, and finally becomes an adult beetle. This process takes several weeks to months to complete.

Lifecycle of carpet Beetle


Carpet beetle eggs are laid in clusters and look like a backbone. They are small, white, and oval-shaped. The eggs of the carpet beetle hatch within a week to 35 days, and the larvae reach their next stage. 

In particular, they can lay eggs in some of the most unlikely places-including inside homes or businesses. This is because carpet beetles can thrive in environments where other insects cannot, making them a common pest.


Carpet beetle larvae can be found in different colors and shapes. They are typically long and thin with a cylindrical body. They range in color from white to black, but some may have colorful markings.

The larvae of carpet beetles feed on dead skin cells and other small insects. This has the potential to wreak a great deal of harm.

Despite that, larvae are not known to pose any serious health dangers. They will only cause minor nuisances like skin irritation or allergies. However, if you do see carpet beetle larvae in your home, it is best to remove them as soon as possible.


Carpet beetles undergo a pupal stage near their larval food source. During the pupal stage, carpet beetles develop and hibernate. This is an essential step in their life cycle, allowing them to become adults and reproduce.

During the pupal stage, the larvae transform into adults. Carpet beetles will only become adults if the conditions are right (temperature and humidity). When these conditions are not met, the larvae will enter a state of suspended animation until they are ready to emerge as adults.


Adults of the carpet beetle can reach up to 4 mm in length and have an oval shape. They are reddish-brown or black and have a hard exoskeleton that helps them protect themselves from predators. Adult carpet beetles are a type of beetle that is commonly found in houses. 

They can be dangerous if they enter through open doors or windows, as they can feed on flower pollen without harming the flowers. This is why they are less harmful than larvae, which can feed on fabrics and other materials in the home.

The larval stages of carpet beetle

Where does the carpet beetle Live?

Carpet beetles live in dark and secluded areas. They are commonly found in carpets and other areas with many furs, such as upholstered furniture, clothing, and animal hides.

Carpet beetles can also be found in closets, dressers, and furniture. The pests will infest these areas to feed on the fabric materials found there.

What does carpet beetle consume during the different stages of their life?

Carpet beetles are pests that can cause significant damage to fabrics. They feed on dried food, so they can be found in areas where food is stored, such as in pantries or cupboards.

If carpet beetles are allowed to thrive, they can eventually damage the fabric of the furniture, carpets, and other items in the home.

The larvae of carpet beetles generally eat woolen items, while the adults feed on various foods. Some prefer to eat grains, others live off insects, and others like to consume hair or feathers.

Carpet beetle larvae are known to feed on their hosts for 3-7 days before killing them and spinning cocoons near the empty shell of their host.

The carpet beetle and its larvae

The black, varied, common, and furniture carpet beetles are predators that feed on natural fibers like wool, leather, and animal hair. They can cause serious damage when left unchecked.

How prevent carpet beetles infestation at home?

There are a few ways to get rid of carpet beetles naturally. 

  • vacuuming, airing out areas infested with carpet beetles and treating furniture where people spend a lot of time
  • One is to clean up any spills or food sources immediately, as these are what attract the beetles.
  • Catch them in small containers filled with sugar water; this will deter them from reproducing. Once they have reached adulthood, release the beetles into the wild.
  • Another option is to apply pesticides that specifically target carpet beetles, but this should be done by a qualified professional because some pesticides may be harmful to humans or pets. There is always potential for collateral damage (e.g., killing beneficial insects). 
  • Baiting systems using attractants such as pheromones or beetle traps work best when used in conjunction with other control measures.
carpet beetle with its distinct outer covering

How to get rid of carpet beetles using natural methods?

Boric Acid

Boric acid is a poison that is used to kill insects. It is available in powder form at pharmacies or supermarkets and can be sprinkled on carpets and other surfaces.

It should not be ingested and should only be used as directed. It should be vacuumed up after it is used, and a spray made with it can help to kill the larvae.

Diatomaceous Earth

Diatomaceous earth is a natural, non-toxic desiccant that quickly kills by dehydrating larvae. It can be used to treat rugs described for boric acid above and sprinkled on the backs of cabinets, closets, and pets’ beds.

Be sure to choose food-grade diatomaceous earth to avoid inhaling fine dust particles.

When applying diatomaceous earth, wearing a respirator or mask is important to avoid breathing in the dust. This will shield your lungs from hazardous substances and chemicals in diatomaceous earth.


Vinegar is a natural and effective way to get rid of carpet beetles. It can be used in various ways, but the most common is to mist it well on furniture, carpets, and clothing.

If you are ever unfortunate enough to experience a carpet beetle infestation in your home, there are a few things you can do:

  • Vacuum the affected area thoroughly and dispose of the vacuum bag outside.
  • If you find signs of the beetles in a closet or dresser drawers, wash clothing stored there in a vinegar and water solution.
  • Keep an eye out for any larvae and remove them immediately.

Vacuuming and Steam Cleaning

Carpet beetles are often eliminated by vacuuming. It is important to vacuum all areas where the beetle may be hiding, including furniture, crevices, and under rugs. Additionally, steam cleaning can help get rid of any carpet beetles that may be present in your home.

keeping the carpet clean to prevent the infestation

If you steam clean your home, you will kill any larvae and eggs that are present, and the steam will also suck them up. This will help to get rid of them completely and prevent future infestations.


Carpet beetles are a common household pest that can cause much damage. They feed on fabrics and can shed their larval skins, contaminating surfaces. If you have a carpet beetle infestation, it is important to get rid of them as soon as possible.

The adults of the carpet beetle are usually what people see at night and find annoying. They feed on various materials but prefer natural fibers such as wool, silk, and hair.

About the author

A biotechnologist by profession and a passionate pest researcher. I have been one of those people who used to run away from cockroaches and rats due to their pesky features, but then we all get that turn in life when we have to face something.